From patchwork Tue May 30 16:08:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260651 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7E85C7EE2E for ; Tue, 30 May 2023 16:10:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233276AbjE3QKY (ORCPT ); Tue, 30 May 2023 12:10:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56664 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230014AbjE3QKV (ORCPT ); Tue, 30 May 2023 12:10:21 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id C1375E48 for ; Tue, 30 May 2023 09:09:53 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 90B1B16F8; Tue, 30 May 2023 09:10:38 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 467883F663; Tue, 30 May 2023 09:09:52 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 01/32] lib: Move acpi header and implementation to lib Date: Tue, 30 May 2023 17:08:53 +0100 Message-Id: <20230530160924.82158-2-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Move acpi.h to lib to make it available for other architectures. Signed-off-by: Nikos Nikoleris Reviewed-by: Shaoqin Huang --- x86/Makefile.common | 2 +- lib/x86/asm/setup.h | 2 +- lib/{x86 => }/acpi.h | 4 ++-- lib/{x86 => }/acpi.c | 0 x86/s3.c | 2 +- x86/vmexit.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) rename lib/{x86 => }/acpi.h (99%) rename lib/{x86 => }/acpi.c (100%) diff --git a/x86/Makefile.common b/x86/Makefile.common index 365e199f..9f2bc93f 100644 --- a/x86/Makefile.common +++ b/x86/Makefile.common @@ -2,6 +2,7 @@ all: directories test_cases +cflatobjs += lib/acpi.o cflatobjs += lib/pci.o cflatobjs += lib/pci-edu.o cflatobjs += lib/alloc.o @@ -18,7 +19,6 @@ cflatobjs += lib/x86/apic.o cflatobjs += lib/x86/atomic.o cflatobjs += lib/x86/desc.o cflatobjs += lib/x86/isr.o -cflatobjs += lib/x86/acpi.o cflatobjs += lib/x86/stack.o cflatobjs += lib/x86/fault_test.o cflatobjs += lib/x86/delay.o diff --git a/lib/x86/asm/setup.h b/lib/x86/asm/setup.h index 1f384274..458eac85 100644 --- a/lib/x86/asm/setup.h +++ b/lib/x86/asm/setup.h @@ -4,7 +4,7 @@ unsigned long setup_tss(u8 *stacktop); #ifdef CONFIG_EFI -#include "x86/acpi.h" +#include "acpi.h" #include "x86/apic.h" #include "x86/processor.h" #include "x86/smp.h" diff --git a/lib/x86/acpi.h b/lib/acpi.h similarity index 99% rename from lib/x86/acpi.h rename to lib/acpi.h index 67ba3899..1e89840c 100644 --- a/lib/x86/acpi.h +++ b/lib/acpi.h @@ -1,5 +1,5 @@ -#ifndef _X86_ACPI_H_ -#define _X86_ACPI_H_ +#ifndef _ACPI_H_ +#define _ACPI_H_ #include "libcflat.h" diff --git a/lib/x86/acpi.c b/lib/acpi.c similarity index 100% rename from lib/x86/acpi.c rename to lib/acpi.c diff --git a/x86/s3.c b/x86/s3.c index 6e41d0c4..378d37ae 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -1,5 +1,5 @@ #include "libcflat.h" -#include "x86/acpi.h" +#include "acpi.h" #include "asm/io.h" static u32* find_resume_vector_addr(void) diff --git a/x86/vmexit.c b/x86/vmexit.c index 2e8866e1..9260accc 100644 --- a/x86/vmexit.c +++ b/x86/vmexit.c @@ -1,9 +1,9 @@ #include "libcflat.h" +#include "acpi.h" #include "smp.h" #include "pci.h" #include "x86/vm.h" #include "x86/desc.h" -#include "x86/acpi.h" #include "x86/apic.h" #include "x86/isr.h" From patchwork Tue May 30 16:08:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260650 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A41B9C7EE23 for ; Tue, 30 May 2023 16:10:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232036AbjE3QKX (ORCPT ); Tue, 30 May 2023 12:10:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233259AbjE3QKV (ORCPT ); Tue, 30 May 2023 12:10:21 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id ABA24E4A for ; Tue, 30 May 2023 09:09:54 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C18531756; Tue, 30 May 2023 09:10:39 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 777923F663; Tue, 30 May 2023 09:09:53 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 02/32] x86: Move x86_64-specific EFI CFLAGS to x86_64 Makefile Date: Tue, 30 May 2023 17:08:54 +0100 Message-Id: <20230530160924.82158-3-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Compiler flag -macculate-outgoing-args is only needed by the x86_64 ABI. Move it to the relevant Makefile. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller Reviewed-by: Shaoqin Huang --- Makefile | 4 ---- x86/Makefile.x86_64 | 4 ++++ 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index 6ed5deac..307bc291 100644 --- a/Makefile +++ b/Makefile @@ -40,14 +40,10 @@ OBJDIRS += $(LIBFDT_objdir) # EFI App ifeq ($(CONFIG_EFI),y) -EFI_ARCH = x86_64 EFI_CFLAGS := -DCONFIG_EFI # The following CFLAGS and LDFLAGS come from: # - GNU-EFI/Makefile.defaults # - GNU-EFI/apps/Makefile -# Function calls must include the number of arguments passed to the functions -# More details: https://wiki.osdev.org/GNU-EFI -EFI_CFLAGS += -maccumulate-outgoing-args # GCC defines wchar to be 32 bits, but EFI expects 16 bits EFI_CFLAGS += -fshort-wchar # EFI applications use PIC as they are loaded to dynamic addresses, not a fixed diff --git a/x86/Makefile.x86_64 b/x86/Makefile.x86_64 index f483dead..2771a6fa 100644 --- a/x86/Makefile.x86_64 +++ b/x86/Makefile.x86_64 @@ -2,6 +2,10 @@ cstart.o = $(TEST_DIR)/cstart64.o bits = 64 ldarch = elf64-x86-64 ifeq ($(CONFIG_EFI),y) +# Function calls must include the number of arguments passed to the functions +# More details: https://wiki.osdev.org/GNU-EFI +CFLAGS += -maccumulate-outgoing-args + exe = efi bin = so FORMAT = efi-app-x86_64 From patchwork Tue May 30 16:08:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260652 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AE3EC7EE2F for ; Tue, 30 May 2023 16:10:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233278AbjE3QK0 (ORCPT ); Tue, 30 May 2023 12:10:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233264AbjE3QKY (ORCPT ); Tue, 30 May 2023 12:10:24 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 00E3CFC for ; Tue, 30 May 2023 09:09:55 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 195451758; Tue, 30 May 2023 09:10:41 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A91D33F663; Tue, 30 May 2023 09:09:54 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 03/32] lib: Apply Lindent to acpi.{c,h} Date: Tue, 30 May 2023 17:08:55 +0100 Message-Id: <20230530160924.82158-4-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org The change was done by modifying Linux's scripts/Lindent to use 100 columns instead of 80. Signed-off-by: Nikos Nikoleris Reviewed-by: Shaoqin Huang --- lib/acpi.h | 157 ++++++++++++++++++++++++++--------------------------- lib/acpi.c | 70 ++++++++++++------------ 2 files changed, 111 insertions(+), 116 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index 1e89840c..b67bbe19 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -3,7 +3,7 @@ #include "libcflat.h" -#define ACPI_SIGNATURE(c1, c2, c3, c4) \ +#define ACPI_SIGNATURE(c1, c2, c3, c4) \ ((c1) | ((c2) << 8) | ((c3) << 16) | ((c4) << 24)) #define RSDP_SIGNATURE ACPI_SIGNATURE('R','S','D','P') @@ -11,102 +11,99 @@ #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') - -#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ - ((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ +#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ + ((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ ((uint64_t)(ACPI_SIGNATURE(c5, c6, c7, c8)) << 32) #define RSDP_SIGNATURE_8BYTE (ACPI_SIGNATURE_8BYTE('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')) -struct rsdp_descriptor { /* Root System Descriptor Pointer */ - u64 signature; /* ACPI signature, contains "RSD PTR " */ - u8 checksum; /* To make sum of struct == 0 */ - u8 oem_id [6]; /* OEM identification */ - u8 revision; /* Must be 0 for 1.0, 2 for 2.0 */ - u32 rsdt_physical_address; /* 32-bit physical address of RSDT */ - u32 length; /* XSDT Length in bytes including hdr */ - u64 xsdt_physical_address; /* 64-bit physical address of XSDT */ - u8 extended_checksum; /* Checksum of entire table */ - u8 reserved [3]; /* Reserved field must be 0 */ +struct rsdp_descriptor { /* Root System Descriptor Pointer */ + u64 signature; /* ACPI signature, contains "RSD PTR " */ + u8 checksum; /* To make sum of struct == 0 */ + u8 oem_id[6]; /* OEM identification */ + u8 revision; /* Must be 0 for 1.0, 2 for 2.0 */ + u32 rsdt_physical_address; /* 32-bit physical address of RSDT */ + u32 length; /* XSDT Length in bytes including hdr */ + u64 xsdt_physical_address; /* 64-bit physical address of XSDT */ + u8 extended_checksum; /* Checksum of entire table */ + u8 reserved[3]; /* Reserved field must be 0 */ }; -#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \ - u32 signature; /* ACPI signature (4 ASCII characters) */ \ - u32 length; /* Length of table, in bytes, including header */ \ - u8 revision; /* ACPI Specification minor version # */ \ - u8 checksum; /* To make sum of entire table == 0 */ \ - u8 oem_id [6]; /* OEM identification */ \ - u8 oem_table_id [8]; /* OEM table identification */ \ - u32 oem_revision; /* OEM revision number */ \ - u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \ - u32 asl_compiler_revision; /* ASL compiler revision number */ +#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \ + u32 signature; /* ACPI signature (4 ASCII characters) */ \ + u32 length; /* Length of table, in bytes, including header */ \ + u8 revision; /* ACPI Specification minor version # */ \ + u8 checksum; /* To make sum of entire table == 0 */ \ + u8 oem_id [6]; /* OEM identification */ \ + u8 oem_table_id [8]; /* OEM table identification */ \ + u32 oem_revision; /* OEM revision number */ \ + u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \ + u32 asl_compiler_revision; /* ASL compiler revision number */ struct acpi_table { - ACPI_TABLE_HEADER_DEF - char data[0]; + ACPI_TABLE_HEADER_DEF + char data[0]; }; struct rsdt_descriptor_rev1 { - ACPI_TABLE_HEADER_DEF - u32 table_offset_entry[0]; + ACPI_TABLE_HEADER_DEF + u32 table_offset_entry[1]; }; -struct fadt_descriptor_rev1 -{ - ACPI_TABLE_HEADER_DEF /* ACPI common table header */ - u32 firmware_ctrl; /* Physical address of FACS */ - u32 dsdt; /* Physical address of DSDT */ - u8 model; /* System Interrupt Model */ - u8 reserved1; /* Reserved */ - u16 sci_int; /* System vector of SCI interrupt */ - u32 smi_cmd; /* Port address of SMI command port */ - u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */ - u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */ - u8 S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */ - u8 reserved2; /* Reserved - must be zero */ - u32 pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */ - u32 pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */ - u32 pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */ - u32 pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */ - u32 pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */ - u32 pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */ - u32 gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */ - u32 gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */ - u8 pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */ - u8 pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */ - u8 pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */ - u8 pm_tmr_len; /* Byte Length of ports at pm_tm_blk */ - u8 gpe0_blk_len; /* Byte Length of ports at gpe0_blk */ - u8 gpe1_blk_len; /* Byte Length of ports at gpe1_blk */ - u8 gpe1_base; /* Offset in gpe model where gpe1 events start */ - u8 reserved3; /* Reserved */ - u16 plvl2_lat; /* Worst case HW latency to enter/exit C2 state */ - u16 plvl3_lat; /* Worst case HW latency to enter/exit C3 state */ - u16 flush_size; /* Size of area read to flush caches */ - u16 flush_stride; /* Stride used in flushing caches */ - u8 duty_offset; /* Bit location of duty cycle field in p_cnt reg */ - u8 duty_width; /* Bit width of duty cycle field in p_cnt reg */ - u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ - u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ - u8 century; /* Index to century in RTC CMOS RAM */ - u8 reserved4; /* Reserved */ - u8 reserved4a; /* Reserved */ - u8 reserved4b; /* Reserved */ +struct fadt_descriptor_rev1 { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u32 firmware_ctrl; /* Physical address of FACS */ + u32 dsdt; /* Physical address of DSDT */ + u8 model; /* System Interrupt Model */ + u8 reserved1; /* Reserved */ + u16 sci_int; /* System vector of SCI interrupt */ + u32 smi_cmd; /* Port address of SMI command port */ + u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */ + u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */ + u8 S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */ + u8 reserved2; /* Reserved - must be zero */ + u32 pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */ + u32 pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */ + u32 pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */ + u32 pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */ + u32 pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */ + u32 pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */ + u32 gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */ + u32 gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */ + u8 pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */ + u8 pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */ + u8 pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */ + u8 pm_tmr_len; /* Byte Length of ports at pm_tm_blk */ + u8 gpe0_blk_len; /* Byte Length of ports at gpe0_blk */ + u8 gpe1_blk_len; /* Byte Length of ports at gpe1_blk */ + u8 gpe1_base; /* Offset in gpe model where gpe1 events start */ + u8 reserved3; /* Reserved */ + u16 plvl2_lat; /* Worst case HW latency to enter/exit C2 state */ + u16 plvl3_lat; /* Worst case HW latency to enter/exit C3 state */ + u16 flush_size; /* Size of area read to flush caches */ + u16 flush_stride; /* Stride used in flushing caches */ + u8 duty_offset; /* Bit location of duty cycle field in p_cnt reg */ + u8 duty_width; /* Bit width of duty cycle field in p_cnt reg */ + u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ + u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ + u8 century; /* Index to century in RTC CMOS RAM */ + u8 reserved4; /* Reserved */ + u8 reserved4a; /* Reserved */ + u8 reserved4b; /* Reserved */ }; -struct facs_descriptor_rev1 -{ - u32 signature; /* ACPI Signature */ - u32 length; /* Length of structure, in bytes */ - u32 hardware_signature; /* Hardware configuration signature */ - u32 firmware_waking_vector; /* ACPI OS waking vector */ - u32 global_lock; /* Global Lock */ - u32 S4bios_f : 1; /* Indicates if S4BIOS support is present */ - u32 reserved1 : 31; /* Must be 0 */ - u8 reserved3 [40]; /* Reserved - must be zero */ +struct facs_descriptor_rev1 { + u32 signature; /* ACPI Signature */ + u32 length; /* Length of structure, in bytes */ + u32 hardware_signature; /* Hardware configuration signature */ + u32 firmware_waking_vector; /* ACPI OS waking vector */ + u32 global_lock; /* Global Lock */ + u32 S4bios_f:1; /* Indicates if S4BIOS support is present */ + u32 reserved1:31; /* Must be 0 */ + u8 reserved3[40]; /* Reserved - must be zero */ }; void set_efi_rsdp(struct rsdp_descriptor *rsdp); -void* find_acpi_table_addr(u32 sig); +void *find_acpi_table_addr(u32 sig); #endif diff --git a/lib/acpi.c b/lib/acpi.c index de275caf..836156a1 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -36,47 +36,45 @@ static struct rsdp_descriptor *get_rsdp(void) } #endif /* CONFIG_EFI */ -void* find_acpi_table_addr(u32 sig) +void *find_acpi_table_addr(u32 sig) { - struct rsdp_descriptor *rsdp; - struct rsdt_descriptor_rev1 *rsdt; - void *end; - int i; + struct rsdp_descriptor *rsdp; + struct rsdt_descriptor_rev1 *rsdt; + void *end; + int i; - /* FACS is special... */ - if (sig == FACS_SIGNATURE) { - struct fadt_descriptor_rev1 *fadt; - fadt = find_acpi_table_addr(FACP_SIGNATURE); - if (!fadt) { - return NULL; - } - return (void*)(ulong)fadt->firmware_ctrl; - } + /* FACS is special... */ + if (sig == FACS_SIGNATURE) { + struct fadt_descriptor_rev1 *fadt; + fadt = find_acpi_table_addr(FACP_SIGNATURE); + if (!fadt) + return NULL; - rsdp = get_rsdp(); - if (rsdp == NULL) { - printf("Can't find RSDP\n"); - return 0; - } + return (void *)(ulong) fadt->firmware_ctrl; + } - if (sig == RSDP_SIGNATURE) { - return rsdp; - } + rsdp = get_rsdp(); + if (rsdp == NULL) { + printf("Can't find RSDP\n"); + return NULL; + } - rsdt = (void*)(ulong)rsdp->rsdt_physical_address; - if (!rsdt || rsdt->signature != RSDT_SIGNATURE) - return 0; + if (sig == RSDP_SIGNATURE) + return rsdp; - if (sig == RSDT_SIGNATURE) { - return rsdt; - } + rsdt = (void *)(ulong) rsdp->rsdt_physical_address; + if (!rsdt || rsdt->signature != RSDT_SIGNATURE) + return NULL; + + if (sig == RSDT_SIGNATURE) + return rsdt; - end = (void*)rsdt + rsdt->length; - for (i=0; (void*)&rsdt->table_offset_entry[i] < end; i++) { - struct acpi_table *t = (void*)(ulong)rsdt->table_offset_entry[i]; - if (t && t->signature == sig) { - return t; - } - } - return NULL; + end = (void *)rsdt + rsdt->length; + for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { + struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; + if (t && t->signature == sig) { + return t; + } + } + return NULL; } From patchwork Tue May 30 16:08:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260653 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B619C7EE2E for ; Tue, 30 May 2023 16:10:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233283AbjE3QK3 (ORCPT ); Tue, 30 May 2023 12:10:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56734 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233279AbjE3QK1 (ORCPT ); Tue, 30 May 2023 12:10:27 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5D457E4E for ; Tue, 30 May 2023 09:09:57 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4A2E4175A; Tue, 30 May 2023 09:10:42 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 004CE3F663; Tue, 30 May 2023 09:09:55 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 04/32] lib: Fix style for acpi.{c,h} Date: Tue, 30 May 2023 17:08:56 +0100 Message-Id: <20230530160924.82158-5-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Manually fix style issues to make the files consistent with the kernel coding style. Zero-length array members have been replaced with flexible array members (for details about the motivation, consult Documentation/process/deprecated.rst in the Linux tree, the section about zero-length and one-element arrays). Signed-off-by: Nikos Nikoleris [ Alex E: changes other than indentation ] Reviewed-by: Shaoqin Huang --- lib/acpi.h | 18 +++++++++--------- lib/acpi.c | 16 ++++++++-------- 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index b67bbe19..2da49451 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -3,7 +3,7 @@ #include "libcflat.h" -#define ACPI_SIGNATURE(c1, c2, c3, c4) \ +#define ACPI_SIGNATURE(c1, c2, c3, c4) \ ((c1) | ((c2) << 8) | ((c3) << 16) | ((c4) << 24)) #define RSDP_SIGNATURE ACPI_SIGNATURE('R','S','D','P') @@ -11,9 +11,9 @@ #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') -#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ - ((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ - ((uint64_t)(ACPI_SIGNATURE(c5, c6, c7, c8)) << 32) +#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ + (((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ + ((uint64_t)(ACPI_SIGNATURE(c5, c6, c7, c8)) << 32)) #define RSDP_SIGNATURE_8BYTE (ACPI_SIGNATURE_8BYTE('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')) @@ -34,20 +34,20 @@ struct rsdp_descriptor { /* Root System Descriptor Pointer */ u32 length; /* Length of table, in bytes, including header */ \ u8 revision; /* ACPI Specification minor version # */ \ u8 checksum; /* To make sum of entire table == 0 */ \ - u8 oem_id [6]; /* OEM identification */ \ - u8 oem_table_id [8]; /* OEM table identification */ \ + u8 oem_id[6]; /* OEM identification */ \ + u8 oem_table_id[8]; /* OEM table identification */ \ u32 oem_revision; /* OEM revision number */ \ - u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \ + u8 asl_compiler_id[4]; /* ASL compiler vendor ID */ \ u32 asl_compiler_revision; /* ASL compiler revision number */ struct acpi_table { ACPI_TABLE_HEADER_DEF - char data[0]; + char data[]; }; struct rsdt_descriptor_rev1 { ACPI_TABLE_HEADER_DEF - u32 table_offset_entry[1]; + u32 table_offset_entry[]; }; struct fadt_descriptor_rev1 { diff --git a/lib/acpi.c b/lib/acpi.c index 836156a1..3f87711a 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -11,9 +11,9 @@ void set_efi_rsdp(struct rsdp_descriptor *rsdp) static struct rsdp_descriptor *get_rsdp(void) { - if (efi_rsdp == NULL) { + if (efi_rsdp == NULL) printf("Can't find RSDP from UEFI, maybe set_efi_rsdp() was not called\n"); - } + return efi_rsdp; } #else @@ -28,9 +28,8 @@ static struct rsdp_descriptor *get_rsdp(void) break; } - if (addr == 0x100000) { + if (addr == 0x100000) return NULL; - } return rsdp; } @@ -38,18 +37,18 @@ static struct rsdp_descriptor *get_rsdp(void) void *find_acpi_table_addr(u32 sig) { - struct rsdp_descriptor *rsdp; struct rsdt_descriptor_rev1 *rsdt; + struct rsdp_descriptor *rsdp; void *end; int i; /* FACS is special... */ if (sig == FACS_SIGNATURE) { struct fadt_descriptor_rev1 *fadt; + fadt = find_acpi_table_addr(FACP_SIGNATURE); if (!fadt) return NULL; - return (void *)(ulong) fadt->firmware_ctrl; } @@ -72,9 +71,10 @@ void *find_acpi_table_addr(u32 sig) end = (void *)rsdt + rsdt->length; for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; - if (t && t->signature == sig) { + + if (t && t->signature == sig) return t; - } } + return NULL; } From patchwork Tue May 30 16:08:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260655 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 014A3C7EE23 for ; Tue, 30 May 2023 16:10:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233291AbjE3QKn (ORCPT ); Tue, 30 May 2023 12:10:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233156AbjE3QKk (ORCPT ); Tue, 30 May 2023 12:10:40 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 3582D12A for ; Tue, 30 May 2023 09:10:11 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7ABF2175D; Tue, 30 May 2023 09:10:43 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 30F1E3F663; Tue, 30 May 2023 09:09:57 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Alexandru Elisei , pbonzini@redhat.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 05/32] lib/acpi: Convert table names to Linux style Date: Tue, 30 May 2023 17:08:57 +0100 Message-Id: <20230530160924.82158-6-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Alexandru Elisei kvm-unit-tests is about to import several table struct definitions from Linux, convert the names of the existing tables to follow the Linux style. This is purely a cosmetic change and no functional change is intended. Signed-off-by: Nikos Nikoleris --- lib/acpi.h | 10 +++++----- lib/acpi.c | 16 ++++++++-------- lib/x86/setup.c | 2 +- x86/s3.c | 4 ++-- x86/vmexit.c | 2 +- 5 files changed, 17 insertions(+), 17 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index 2da49451..f9a344e9 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -17,7 +17,7 @@ #define RSDP_SIGNATURE_8BYTE (ACPI_SIGNATURE_8BYTE('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')) -struct rsdp_descriptor { /* Root System Descriptor Pointer */ +struct acpi_table_rsdp { /* Root System Descriptor Pointer */ u64 signature; /* ACPI signature, contains "RSD PTR " */ u8 checksum; /* To make sum of struct == 0 */ u8 oem_id[6]; /* OEM identification */ @@ -45,12 +45,12 @@ struct acpi_table { char data[]; }; -struct rsdt_descriptor_rev1 { +struct acpi_table_rsdt_rev1 { ACPI_TABLE_HEADER_DEF u32 table_offset_entry[]; }; -struct fadt_descriptor_rev1 { +struct acpi_table_fadt_rev1 { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u32 firmware_ctrl; /* Physical address of FACS */ u32 dsdt; /* Physical address of DSDT */ @@ -92,7 +92,7 @@ struct fadt_descriptor_rev1 { u8 reserved4b; /* Reserved */ }; -struct facs_descriptor_rev1 { +struct acpi_table_facs_rev1 { u32 signature; /* ACPI Signature */ u32 length; /* Length of structure, in bytes */ u32 hardware_signature; /* Hardware configuration signature */ @@ -103,7 +103,7 @@ struct facs_descriptor_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; -void set_efi_rsdp(struct rsdp_descriptor *rsdp); +void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); #endif diff --git a/lib/acpi.c b/lib/acpi.c index 3f87711a..166ffd14 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -2,14 +2,14 @@ #include "acpi.h" #ifdef CONFIG_EFI -struct rsdp_descriptor *efi_rsdp = NULL; +struct acpi_table_rsdp *efi_rsdp = NULL; -void set_efi_rsdp(struct rsdp_descriptor *rsdp) +void set_efi_rsdp(struct acpi_table_rsdp *rsdp) { efi_rsdp = rsdp; } -static struct rsdp_descriptor *get_rsdp(void) +static struct acpi_table_rsdp *get_rsdp(void) { if (efi_rsdp == NULL) printf("Can't find RSDP from UEFI, maybe set_efi_rsdp() was not called\n"); @@ -17,9 +17,9 @@ static struct rsdp_descriptor *get_rsdp(void) return efi_rsdp; } #else -static struct rsdp_descriptor *get_rsdp(void) +static struct acpi_table_rsdp *get_rsdp(void) { - struct rsdp_descriptor *rsdp; + struct acpi_table_rsdp *rsdp; unsigned long addr; for (addr = 0xe0000; addr < 0x100000; addr += 16) { @@ -37,14 +37,14 @@ static struct rsdp_descriptor *get_rsdp(void) void *find_acpi_table_addr(u32 sig) { - struct rsdt_descriptor_rev1 *rsdt; - struct rsdp_descriptor *rsdp; + struct acpi_table_rsdt_rev1 *rsdt; + struct acpi_table_rsdp *rsdp; void *end; int i; /* FACS is special... */ if (sig == FACS_SIGNATURE) { - struct fadt_descriptor_rev1 *fadt; + struct acpi_table_fadt_rev1 *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); if (!fadt) diff --git a/lib/x86/setup.c b/lib/x86/setup.c index dd150300..d509a248 100644 --- a/lib/x86/setup.c +++ b/lib/x86/setup.c @@ -245,7 +245,7 @@ static efi_status_t setup_memory_allocator(efi_bootinfo_t *efi_bootinfo) static efi_status_t setup_rsdp(efi_bootinfo_t *efi_bootinfo) { efi_status_t status; - struct rsdp_descriptor *rsdp; + struct acpi_table_rsdp *rsdp; /* * RSDP resides in an EFI_ACPI_RECLAIM_MEMORY region, which is not used diff --git a/x86/s3.c b/x86/s3.c index 378d37ae..96db728c 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -4,7 +4,7 @@ static u32* find_resume_vector_addr(void) { - struct facs_descriptor_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); + struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); if (!facs) return 0; printf("FACS is at %p\n", facs); @@ -39,7 +39,7 @@ extern char resume_start, resume_end; int main(int argc, char **argv) { - struct fadt_descriptor_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); + struct acpi_table_fadt_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); volatile u32 *resume_vector_ptr = find_resume_vector_addr(); char *addr, *resume_vec = (void*)0x1000; diff --git a/x86/vmexit.c b/x86/vmexit.c index 9260accc..12234f9e 100644 --- a/x86/vmexit.c +++ b/x86/vmexit.c @@ -206,7 +206,7 @@ int pm_tmr_blk; static void inl_pmtimer(void) { if (!pm_tmr_blk) { - struct fadt_descriptor_rev1 *fadt; + struct acpi_table_fadt_rev1 *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); pm_tmr_blk = fadt->pm_tmr_blk; From patchwork Tue May 30 16:08:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260654 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 31E75C77B7A for ; Tue, 30 May 2023 16:10:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231408AbjE3QKm (ORCPT ); Tue, 30 May 2023 12:10:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232714AbjE3QKk (ORCPT ); Tue, 30 May 2023 12:10:40 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 3589812B for ; Tue, 30 May 2023 09:10:11 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id ABD211762; Tue, 30 May 2023 09:10:44 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6194B3F663; Tue, 30 May 2023 09:09:58 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 06/32] x86: Avoid references to fields of ACPI tables Date: Tue, 30 May 2023 17:08:58 +0100 Message-Id: <20230530160924.82158-7-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org ACPI table definitions in have to be packed. However, once we do that, direct references to members of the packed struct might result in unaligned pointers and gcc complains about them. This change modifies the code to avoid such references in preparation for making the APCI table definitions packed. Signed-off-by: Nikos Nikoleris --- x86/s3.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/x86/s3.c b/x86/s3.c index 96db728c..910c57fb 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -2,15 +2,6 @@ #include "acpi.h" #include "asm/io.h" -static u32* find_resume_vector_addr(void) -{ - struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); - if (!facs) - return 0; - printf("FACS is at %p\n", facs); - return &facs->firmware_waking_vector; -} - #define RTC_SECONDS_ALARM 1 #define RTC_MINUTES_ALARM 3 #define RTC_HOURS_ALARM 5 @@ -40,12 +31,14 @@ extern char resume_start, resume_end; int main(int argc, char **argv) { struct acpi_table_fadt_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); - volatile u32 *resume_vector_ptr = find_resume_vector_addr(); + struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); char *addr, *resume_vec = (void*)0x1000; - *resume_vector_ptr = (u32)(ulong)resume_vec; + assert(facs); + facs->firmware_waking_vector = (u32)(ulong)resume_vec; - printf("resume vector addr is %p\n", resume_vector_ptr); + printf("FACS is at %p\n", facs); + printf("resume vector addr is %p\n", &facs->firmware_waking_vector); for (addr = &resume_start; addr < &resume_end; addr++) *resume_vec++ = *addr; printf("copy resume code from %p\n", &resume_start); From patchwork Tue May 30 16:08:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260658 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7696C7EE23 for ; Tue, 30 May 2023 16:10:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233294AbjE3QKw (ORCPT ); Tue, 30 May 2023 12:10:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57058 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233280AbjE3QKr (ORCPT ); Tue, 30 May 2023 12:10:47 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id ADB0219B for ; Tue, 30 May 2023 09:10:21 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DC4591763; Tue, 30 May 2023 09:10:45 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 928F53F663; Tue, 30 May 2023 09:09:59 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 07/32] lib/acpi: Ensure all struct definition for ACPI tables are packed Date: Tue, 30 May 2023 17:08:59 +0100 Message-Id: <20230530160924.82158-8-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org All ACPI table definitions are provided with precise definitions of field sizes and offsets, make sure that no compiler optimization can interfere with the memory layout of the corresponding structs. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/acpi.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/lib/acpi.h b/lib/acpi.h index f9a344e9..7eb18cf3 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -3,6 +3,12 @@ #include "libcflat.h" +/* + * All tables and structures must be byte-packed to match the ACPI + * specification, since the tables are provided by the system firmware. + */ +#pragma pack(1) + #define ACPI_SIGNATURE(c1, c2, c3, c4) \ ((c1) | ((c2) << 8) | ((c3) << 16) | ((c4) << 24)) @@ -103,6 +109,9 @@ struct acpi_table_facs_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; +/* Reset to default packing */ +#pragma pack() + void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); From patchwork Tue May 30 16:09:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260657 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C90FFC7EE2E for ; Tue, 30 May 2023 16:10:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233299AbjE3QKu (ORCPT ); Tue, 30 May 2023 12:10:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233290AbjE3QKr (ORCPT ); Tue, 30 May 2023 12:10:47 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id ADA1B19A for ; Tue, 30 May 2023 09:10:21 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 192761764; Tue, 30 May 2023 09:10:47 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C35A63F663; Tue, 30 May 2023 09:10:00 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 08/32] lib/acpi: Add support for the XSDT table Date: Tue, 30 May 2023 17:09:00 +0100 Message-Id: <20230530160924.82158-9-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org XSDT provides pointers to other ACPI tables much like RSDT. However, contrary to RSDT that provides 32-bit addresses, XSDT provides 64-bit pointers. ACPI requires that if XSDT is valid then it takes precedence over RSDT. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones [ Alex E: Use flexible array member for XSDT struct ] Signed-off-by: Alexandru Elisei Reviewed-by: Shaoqin Huang --- lib/acpi.h | 6 ++++++ lib/acpi.c | 40 ++++++++++++++++++++++++++++++++-------- 2 files changed, 38 insertions(+), 8 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index 7eb18cf3..acf807d7 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -14,6 +14,7 @@ #define RSDP_SIGNATURE ACPI_SIGNATURE('R','S','D','P') #define RSDT_SIGNATURE ACPI_SIGNATURE('R','S','D','T') +#define XSDT_SIGNATURE ACPI_SIGNATURE('X','S','D','T') #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') @@ -56,6 +57,11 @@ struct acpi_table_rsdt_rev1 { u32 table_offset_entry[]; }; +struct acpi_table_xsdt { + ACPI_TABLE_HEADER_DEF + u64 table_offset_entry[]; +}; + struct acpi_table_fadt_rev1 { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u32 firmware_ctrl; /* Physical address of FACS */ diff --git a/lib/acpi.c b/lib/acpi.c index 166ffd14..133dd5c0 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -37,7 +37,8 @@ static struct acpi_table_rsdp *get_rsdp(void) void *find_acpi_table_addr(u32 sig) { - struct acpi_table_rsdt_rev1 *rsdt; + struct acpi_table_rsdt_rev1 *rsdt = NULL; + struct acpi_table_xsdt *xsdt = NULL; struct acpi_table_rsdp *rsdp; void *end; int i; @@ -62,18 +63,41 @@ void *find_acpi_table_addr(u32 sig) return rsdp; rsdt = (void *)(ulong) rsdp->rsdt_physical_address; - if (!rsdt || rsdt->signature != RSDT_SIGNATURE) - return NULL; + if (rsdt && rsdt->signature != RSDT_SIGNATURE) + rsdt = NULL; if (sig == RSDT_SIGNATURE) return rsdt; - end = (void *)rsdt + rsdt->length; - for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { - struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; + if (rsdp->revision >= 2) { + xsdt = (void *)(ulong) rsdp->xsdt_physical_address; + if (xsdt && xsdt->signature != XSDT_SIGNATURE) + xsdt = NULL; + } - if (t && t->signature == sig) - return t; + if (sig == XSDT_SIGNATURE) + return xsdt; + + /* + * When the system implements APCI 2.0 and above and XSDT is valid we + * have use XSDT to find other ACPI tables, otherwise, we use RSDT. + */ + if (xsdt) { + end = (void *)xsdt + xsdt->length; + for (i = 0; (void *)&xsdt->table_offset_entry[i] < end; i++) { + struct acpi_table *t = (void *)(ulong) xsdt->table_offset_entry[i]; + + if (t && t->signature == sig) + return t; + } + } else if (rsdt) { + end = (void *)rsdt + rsdt->length; + for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { + struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; + + if (t && t->signature == sig) + return t; + } } return NULL; From patchwork Tue May 30 16:09:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260659 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FB85C77B7A for ; Tue, 30 May 2023 16:10:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233305AbjE3QKw (ORCPT ); Tue, 30 May 2023 12:10:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57058 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232714AbjE3QKs (ORCPT ); Tue, 30 May 2023 12:10:48 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 169F719D for ; Tue, 30 May 2023 09:10:22 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 64699176A; Tue, 30 May 2023 09:10:48 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 003783F663; Tue, 30 May 2023 09:10:01 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com, Andrew Jones Subject: [kvm-unit-tests PATCH v6 09/32] lib/acpi: Extend the definition of the FADT table Date: Tue, 30 May 2023 17:09:01 +0100 Message-Id: <20230530160924.82158-10-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change add more fields in the APCI table FADT to allow for the discovery of the PSCI conduit in arm64 systems. The definition for FADT is similar to the one in include/acpi/actbl.h in Linux. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller Reviewed-by: Andrew Jones Reviewed-by: Shaoqin Huang --- lib/acpi.h | 33 +++++++++++++++++++++++++++++---- lib/acpi.c | 2 +- x86/s3.c | 2 +- x86/vmexit.c | 2 +- 4 files changed, 32 insertions(+), 7 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index acf807d7..0c205f5b 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -62,7 +62,15 @@ struct acpi_table_xsdt { u64 table_offset_entry[]; }; -struct acpi_table_fadt_rev1 { +struct acpi_generic_address { + u8 space_id; /* Address space where struct or register exists */ + u8 bit_width; /* Size in bits of given register */ + u8 bit_offset; /* Bit offset within the register */ + u8 access_width; /* Minimum Access size (ACPI 3.0) */ + u64 address; /* 64-bit address of struct or register */ +}; + +struct acpi_table_fadt { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u32 firmware_ctrl; /* Physical address of FACS */ u32 dsdt; /* Physical address of DSDT */ @@ -99,9 +107,26 @@ struct acpi_table_fadt_rev1 { u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ u8 century; /* Index to century in RTC CMOS RAM */ - u8 reserved4; /* Reserved */ - u8 reserved4a; /* Reserved */ - u8 reserved4b; /* Reserved */ + u16 boot_flags; /* IA-PC Boot Architecture Flags (see below for individual flags) */ + u8 reserved; /* Reserved, must be zero */ + u32 flags; /* Miscellaneous flag bits (see below for individual flags) */ + struct acpi_generic_address reset_register; /* 64-bit address of the Reset register */ + u8 reset_value; /* Value to write to the reset_register port to reset the system */ + u16 arm_boot_flags; /* ARM-Specific Boot Flags (see below for individual flags) (ACPI 5.1) */ + u8 minor_revision; /* FADT Minor Revision (ACPI 5.1) */ + u64 Xfacs; /* 64-bit physical address of FACS */ + u64 Xdsdt; /* 64-bit physical address of DSDT */ + struct acpi_generic_address xpm1a_event_block; /* 64-bit Extended Power Mgt 1a Event Reg Blk address */ + struct acpi_generic_address xpm1b_event_block; /* 64-bit Extended Power Mgt 1b Event Reg Blk address */ + struct acpi_generic_address xpm1a_control_block; /* 64-bit Extended Power Mgt 1a Control Reg Blk address */ + struct acpi_generic_address xpm1b_control_block; /* 64-bit Extended Power Mgt 1b Control Reg Blk address */ + struct acpi_generic_address xpm2_control_block; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */ + struct acpi_generic_address xpm_timer_block; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */ + struct acpi_generic_address xgpe0_block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */ + struct acpi_generic_address xgpe1_block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */ + struct acpi_generic_address sleep_control; /* 64-bit Sleep Control register (ACPI 5.0) */ + struct acpi_generic_address sleep_status; /* 64-bit Sleep Status register (ACPI 5.0) */ + u64 hypervisor_id; /* Hypervisor Vendor ID (ACPI 6.0) */ }; struct acpi_table_facs_rev1 { diff --git a/lib/acpi.c b/lib/acpi.c index 133dd5c0..f55d3e37 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -45,7 +45,7 @@ void *find_acpi_table_addr(u32 sig) /* FACS is special... */ if (sig == FACS_SIGNATURE) { - struct acpi_table_fadt_rev1 *fadt; + struct acpi_table_fadt *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); if (!fadt) diff --git a/x86/s3.c b/x86/s3.c index 910c57fb..6f2d6d10 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -30,8 +30,8 @@ extern char resume_start, resume_end; int main(int argc, char **argv) { - struct acpi_table_fadt_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); + struct acpi_table_fadt *fadt = find_acpi_table_addr(FACP_SIGNATURE); char *addr, *resume_vec = (void*)0x1000; assert(facs); diff --git a/x86/vmexit.c b/x86/vmexit.c index 12234f9e..cc086b86 100644 --- a/x86/vmexit.c +++ b/x86/vmexit.c @@ -206,7 +206,7 @@ int pm_tmr_blk; static void inl_pmtimer(void) { if (!pm_tmr_blk) { - struct acpi_table_fadt_rev1 *fadt; + struct acpi_table_fadt *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); pm_tmr_blk = fadt->pm_tmr_blk; From patchwork Tue May 30 16:09:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260656 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA19FC7EE23 for ; Tue, 30 May 2023 16:10:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233287AbjE3QKt (ORCPT ); Tue, 30 May 2023 12:10:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233156AbjE3QKr (ORCPT ); Tue, 30 May 2023 12:10:47 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 16BDD19F for ; Tue, 30 May 2023 09:10:22 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 951F0176B; Tue, 30 May 2023 09:10:49 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4B4FF3F663; Tue, 30 May 2023 09:10:03 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 10/32] devicetree: Check that fdt is not NULL in dt_available() Date: Tue, 30 May 2023 17:09:02 +0100 Message-Id: <20230530160924.82158-11-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Up until now, for platforms that support DT, kvm-unit-tests would unconditionally use DT to configure the system and the code made the assumption that the fdt will always be a valid pointer. On Arm systems that support both ACPI and DT, kvm-unit-tests plans to follow the same convension as the Linux kernel: attempt to configure the system using the DT first, then fallback to ACPI. As a result, the fdt pointer can be NULL. Check for that in dt_available(). Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones [ Alex E: Minor changes to the commit message ] --- lib/devicetree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/devicetree.c b/lib/devicetree.c index 78c1f6fb..3ff9d164 100644 --- a/lib/devicetree.c +++ b/lib/devicetree.c @@ -16,7 +16,7 @@ const void *dt_fdt(void) bool dt_available(void) { - return fdt_check_header(fdt) == 0; + return fdt && fdt_check_header(fdt) == 0; } int dt_get_nr_cells(int fdtnode, u32 *nr_address_cells, u32 *nr_size_cells) From patchwork Tue May 30 16:09:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260660 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 84500C7EE23 for ; Tue, 30 May 2023 16:10:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233304AbjE3QKy (ORCPT ); Tue, 30 May 2023 12:10:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233296AbjE3QKw (ORCPT ); Tue, 30 May 2023 12:10:52 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 77DDD1B9 for ; Tue, 30 May 2023 09:10:24 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E04EF176C; Tue, 30 May 2023 09:10:50 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7C2193F663; Tue, 30 May 2023 09:10:04 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com, Andrew Jones Subject: [kvm-unit-tests PATCH v6 11/32] arm64: Add support for setting up the PSCI conduit through ACPI Date: Tue, 30 May 2023 17:09:03 +0100 Message-Id: <20230530160924.82158-12-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the FADT to discover whether PSCI calls need to use smc or hvc calls. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to setup the PSCI conduit using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones Reviewed-by: Ricardo Koller Reviewed-by: Shaoqin Huang --- arm/Makefile.arm64 | 4 ++++ lib/acpi.h | 5 +++++ lib/arm/psci.c | 37 ++++++++++++++++++++++++++++++++++++- 3 files changed, 45 insertions(+), 1 deletion(-) diff --git a/arm/Makefile.arm64 b/arm/Makefile.arm64 index 42e18e77..6dff6cad 100644 --- a/arm/Makefile.arm64 +++ b/arm/Makefile.arm64 @@ -25,6 +25,10 @@ cflatobjs += lib/arm64/processor.o cflatobjs += lib/arm64/spinlock.o cflatobjs += lib/arm64/gic-v3-its.o lib/arm64/gic-v3-its-cmd.o +ifeq ($(CONFIG_EFI),y) +cflatobjs += lib/acpi.o +endif + OBJDIRS += lib/arm64 # arm64 specific tests diff --git a/lib/acpi.h b/lib/acpi.h index 0c205f5b..1ba4999e 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -129,6 +129,11 @@ struct acpi_table_fadt { u64 hypervisor_id; /* Hypervisor Vendor ID (ACPI 6.0) */ }; +/* Masks for FADT ARM Boot Architecture Flags (arm_boot_flags) ACPI 5.1 */ + +#define ACPI_FADT_PSCI_COMPLIANT (1) /* 00: [V5+] PSCI 0.2+ is implemented */ +#define ACPI_FADT_PSCI_USE_HVC (1<<1) /* 01: [V5+] HVC must be used instead of SMC as the PSCI conduit */ + struct acpi_table_facs_rev1 { u32 signature; /* ACPI Signature */ u32 length; /* Length of structure, in bytes */ diff --git a/lib/arm/psci.c b/lib/arm/psci.c index 9c031a12..bddb0787 100644 --- a/lib/arm/psci.c +++ b/lib/arm/psci.c @@ -56,7 +56,7 @@ void psci_system_off(void) printf("CPU%d unable to do system off (error = %d)\n", smp_processor_id(), err); } -void psci_set_conduit(void) +static void psci_set_conduit_fdt(void) { const void *fdt = dt_fdt(); const struct fdt_property *method; @@ -75,3 +75,38 @@ void psci_set_conduit(void) else assert_msg(false, "Unknown PSCI conduit: %s", method->data); } + +#ifdef CONFIG_EFI + +#include + +static void psci_set_conduit_acpi(void) +{ + struct acpi_table_fadt *fadt = find_acpi_table_addr(FACP_SIGNATURE); + + assert_msg(fadt, "Unable to find ACPI FADT"); + assert_msg(fadt->arm_boot_flags & ACPI_FADT_PSCI_COMPLIANT, + "PSCI is not supported in this platform"); + + if (fadt->arm_boot_flags & ACPI_FADT_PSCI_USE_HVC) + psci_invoke = psci_invoke_hvc; + else + psci_invoke = psci_invoke_smc; +} + +#else + +static void psci_set_conduit_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + +void psci_set_conduit(void) +{ + if (dt_available()) + psci_set_conduit_fdt(); + else + psci_set_conduit_acpi(); +} From patchwork Tue May 30 16:09:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260661 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7045EC7EE2E for ; Tue, 30 May 2023 16:10:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233302AbjE3QKz (ORCPT ); Tue, 30 May 2023 12:10:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57054 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233298AbjE3QKw (ORCPT ); Tue, 30 May 2023 12:10:52 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 77F8C1BB for ; Tue, 30 May 2023 09:10:24 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 379E819F0; Tue, 30 May 2023 09:10:52 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C75303F663; Tue, 30 May 2023 09:10:05 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com, Andrew Jones Subject: [kvm-unit-tests PATCH v6 12/32] arm64: Add support for discovering the UART through ACPI Date: Tue, 30 May 2023 17:09:04 +0100 Message-Id: <20230530160924.82158-13-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the SPCR to discover the serial port address range. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to discover the UART using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones Reviewed-by: Ricardo Koller Reviewed-by: Shaoqin Huang --- lib/acpi.h | 25 +++++++++++++++++++++++++ lib/arm/io.c | 34 +++++++++++++++++++++++++++++----- 2 files changed, 54 insertions(+), 5 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index 1ba4999e..8c4598e8 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -17,6 +17,7 @@ #define XSDT_SIGNATURE ACPI_SIGNATURE('X','S','D','T') #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') +#define SPCR_SIGNATURE ACPI_SIGNATURE('S','P','C','R') #define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ (((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ @@ -145,6 +146,30 @@ struct acpi_table_facs_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; +struct spcr_descriptor { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u8 interface_type; /* 0=full 16550, 1=subset of 16550 */ + u8 reserved[3]; + struct acpi_generic_address serial_port; + u8 interrupt_type; + u8 pc_interrupt; + u32 interrupt; + u8 baud_rate; + u8 parity; + u8 stop_bits; + u8 flow_control; + u8 terminal_type; + u8 reserved1; + u16 pci_device_id; + u16 pci_vendor_id; + u8 pci_bus; + u8 pci_device; + u8 pci_function; + u32 pci_flags; + u8 pci_segment; + u32 reserved2; +}; + /* Reset to default packing */ #pragma pack() diff --git a/lib/arm/io.c b/lib/arm/io.c index 343e1082..19f93490 100644 --- a/lib/arm/io.c +++ b/lib/arm/io.c @@ -29,7 +29,7 @@ static struct spinlock uart_lock; #define UART_EARLY_BASE (u8 *)(unsigned long)CONFIG_UART_EARLY_BASE static volatile u8 *uart0_base = UART_EARLY_BASE; -static void uart0_init(void) +static void uart0_init_fdt(void) { /* * kvm-unit-tests uses the uart only for output. Both uart models have @@ -65,17 +65,41 @@ static void uart0_init(void) } uart0_base = ioremap(base.addr, base.size); +} + +#ifdef CONFIG_EFI + +#include + +static void uart0_init_acpi(void) +{ + struct spcr_descriptor *spcr = find_acpi_table_addr(SPCR_SIGNATURE); + + assert_msg(spcr, "Unable to find ACPI SPCR"); + uart0_base = ioremap(spcr->serial_port.address, spcr->serial_port.bit_width); +} +#else + +static void uart0_init_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + +void io_init(void) +{ + if (dt_available()) + uart0_init_fdt(); + else + uart0_init_acpi(); if (uart0_base != UART_EARLY_BASE) { printf("WARNING: early print support may not work. " "Found uart at %p, but early base is %p.\n", uart0_base, UART_EARLY_BASE); } -} -void io_init(void) -{ - uart0_init(); chr_testdev_init(); } From patchwork Tue May 30 16:09:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260663 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F2A7C77B7A for ; Tue, 30 May 2023 16:11:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233317AbjE3QK6 (ORCPT ); Tue, 30 May 2023 12:10:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233306AbjE3QKz (ORCPT ); Tue, 30 May 2023 12:10:55 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id AF8C3E44 for ; Tue, 30 May 2023 09:10:27 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 830681A00; Tue, 30 May 2023 09:10:53 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1E7B73F663; Tue, 30 May 2023 09:10:07 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com, Andrew Jones Subject: [kvm-unit-tests PATCH v6 13/32] arm64: Add support for timer initialization through ACPI Date: Tue, 30 May 2023 17:09:05 +0100 Message-Id: <20230530160924.82158-14-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org For systems with ACPI support, we can discover timers through the ACPI GTDT table. This change implements the code to discover timers through the GTDT and adds ACPI support in timer_save_state. This change retains the default behavior; we check if a valid DT is provided, if not, we try to discover timers using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- arm/Makefile.common | 1 + lib/arm/asm/timer.h | 2 + lib/acpi.h | 18 +++++++++ lib/arm/setup.c | 39 ------------------- lib/arm/timer.c | 92 +++++++++++++++++++++++++++++++++++++++++++++ arm/micro-bench.c | 4 +- arm/timer.c | 10 ++--- 7 files changed, 120 insertions(+), 46 deletions(-) create mode 100644 lib/arm/timer.c diff --git a/arm/Makefile.common b/arm/Makefile.common index 1bbec64f..647b0fb1 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -53,6 +53,7 @@ cflatobjs += lib/arm/psci.o cflatobjs += lib/arm/smp.o cflatobjs += lib/arm/delay.o cflatobjs += lib/arm/gic.o lib/arm/gic-v2.o lib/arm/gic-v3.o +cflatobjs += lib/arm/timer.o OBJDIRS += lib/arm diff --git a/lib/arm/asm/timer.h b/lib/arm/asm/timer.h index f75cc67f..aaf839fc 100644 --- a/lib/arm/asm/timer.h +++ b/lib/arm/asm/timer.h @@ -27,5 +27,7 @@ extern struct timer_state __timer_state; #define TIMER_PTIMER_IRQ (__timer_state.ptimer.irq) #define TIMER_VTIMER_IRQ (__timer_state.vtimer.irq) +void timer_save_state(void); + #endif /* !__ASSEMBLY__ */ #endif /* _ASMARM_TIMER_H_ */ diff --git a/lib/acpi.h b/lib/acpi.h index 8c4598e8..c8ff005c 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -18,6 +18,7 @@ #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') #define SPCR_SIGNATURE ACPI_SIGNATURE('S','P','C','R') +#define GTDT_SIGNATURE ACPI_SIGNATURE('G','T','D','T') #define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ (((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ @@ -170,6 +171,23 @@ struct spcr_descriptor { u32 reserved2; }; +struct acpi_table_gtdt { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u64 counter_block_addresss; + u32 reserved; + u32 secure_el1_interrupt; + u32 secure_el1_flags; + u32 non_secure_el1_interrupt; + u32 non_secure_el1_flags; + u32 virtual_timer_interrupt; + u32 virtual_timer_flags; + u32 non_secure_el2_interrupt; + u32 non_secure_el2_flags; + u64 counter_read_block_address; + u32 platform_timer_count; + u32 platform_timer_offset; +}; + /* Reset to default packing */ #pragma pack() diff --git a/lib/arm/setup.c b/lib/arm/setup.c index bcdf0d78..1572c64e 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -35,8 +35,6 @@ extern unsigned long etext; -struct timer_state __timer_state; - char *initrd; u32 initrd_size; @@ -199,43 +197,6 @@ static void mem_init(phys_addr_t freemem_start) page_alloc_ops_enable(); } -static void timer_save_state(void) -{ - const struct fdt_property *prop; - const void *fdt = dt_fdt(); - int node, len; - u32 *data; - - node = fdt_node_offset_by_compatible(fdt, -1, "arm,armv8-timer"); - assert(node >= 0 || node == -FDT_ERR_NOTFOUND); - - if (node == -FDT_ERR_NOTFOUND) { - __timer_state.ptimer.irq = -1; - __timer_state.vtimer.irq = -1; - return; - } - - /* - * From Linux devicetree timer binding documentation - * - * interrupts : - * secure timer irq - * non-secure timer irq (ptimer) - * virtual timer irq (vtimer) - * hypervisor timer irq - */ - prop = fdt_get_property(fdt, node, "interrupts", &len); - assert(prop && len == (4 * 3 * sizeof(u32))); - - data = (u32 *)prop->data; - assert(fdt32_to_cpu(data[3]) == 1 /* PPI */); - __timer_state.ptimer.irq = fdt32_to_cpu(data[4]); - __timer_state.ptimer.irq_flags = fdt32_to_cpu(data[5]); - assert(fdt32_to_cpu(data[6]) == 1 /* PPI */); - __timer_state.vtimer.irq = fdt32_to_cpu(data[7]); - __timer_state.vtimer.irq_flags = fdt32_to_cpu(data[8]); -} - void setup(const void *fdt, phys_addr_t freemem_start) { void *freemem; diff --git a/lib/arm/timer.c b/lib/arm/timer.c new file mode 100644 index 00000000..ae702e41 --- /dev/null +++ b/lib/arm/timer.c @@ -0,0 +1,92 @@ +/* + * Initialize timers. + * + * Copyright (C) 2022, Arm Ltd., Nikos Nikoleris + * Copyright (C) 2014, Red Hat Inc, Andrew Jones + * + * This work is licensed under the terms of the GNU LGPL, version 2. + */ +#include +#include +#include +#include +#include +#include + +struct timer_state __timer_state; + +static void timer_save_state_fdt(void) +{ + const struct fdt_property *prop; + const void *fdt = dt_fdt(); + int node, len; + u32 *data; + + node = fdt_node_offset_by_compatible(fdt, -1, "arm,armv8-timer"); + assert(node >= 0 || node == -FDT_ERR_NOTFOUND); + + if (node == -FDT_ERR_NOTFOUND) { + __timer_state.ptimer.irq = -1; + __timer_state.vtimer.irq = -1; + return; + } + + /* + * From Linux devicetree timer binding documentation + * + * interrupts : + * secure timer irq + * non-secure timer irq (ptimer) + * virtual timer irq (vtimer) + * hypervisor timer irq + */ + prop = fdt_get_property(fdt, node, "interrupts", &len); + assert(prop && len == (4 * 3 * sizeof(u32))); + + data = (u32 *) prop->data; + assert(fdt32_to_cpu(data[3]) == 1 /* PPI */ ); + __timer_state.ptimer.irq = PPI(fdt32_to_cpu(data[4])); + __timer_state.ptimer.irq_flags = fdt32_to_cpu(data[5]); + assert(fdt32_to_cpu(data[6]) == 1 /* PPI */ ); + __timer_state.vtimer.irq = PPI(fdt32_to_cpu(data[7])); + __timer_state.vtimer.irq_flags = fdt32_to_cpu(data[8]); +} + +#ifdef CONFIG_EFI + +#include + +static void timer_save_state_acpi(void) +{ + struct acpi_table_gtdt *gtdt = find_acpi_table_addr(GTDT_SIGNATURE); + + if (!gtdt) { + printf("Cannot find ACPI GTDT"); + __timer_state.ptimer.irq = -1; + __timer_state.vtimer.irq = -1; + return; + } + + __timer_state.ptimer.irq = gtdt->non_secure_el1_interrupt; + __timer_state.ptimer.irq_flags = gtdt->non_secure_el1_flags; + + __timer_state.vtimer.irq = gtdt->virtual_timer_interrupt; + __timer_state.vtimer.irq_flags = gtdt->virtual_timer_flags; +} + +#else + +static void timer_save_state_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + +void timer_save_state(void) +{ + if (dt_available()) + timer_save_state_fdt(); + else + timer_save_state_acpi(); +} diff --git a/arm/micro-bench.c b/arm/micro-bench.c index 090fda6a..bfd181dc 100644 --- a/arm/micro-bench.c +++ b/arm/micro-bench.c @@ -43,7 +43,7 @@ static void gic_irq_handler(struct pt_regs *regs) irq_received = true; gic_write_eoir(irqstat); - if (irqstat == PPI(TIMER_VTIMER_IRQ)) { + if (irqstat == TIMER_VTIMER_IRQ) { write_sysreg((ARCH_TIMER_CTL_IMASK | ARCH_TIMER_CTL_ENABLE), cntv_ctl_el0); isb(); @@ -216,7 +216,7 @@ static bool timer_prep(void) install_irq_handler(EL1H_IRQ, gic_irq_handler); local_irq_enable(); - gic_enable_irq(PPI(TIMER_VTIMER_IRQ)); + gic_enable_irq(TIMER_VTIMER_IRQ); write_sysreg(ARCH_TIMER_CTL_IMASK | ARCH_TIMER_CTL_ENABLE, cntv_ctl_el0); isb(); diff --git a/arm/timer.c b/arm/timer.c index c0a8388a..2cb80518 100644 --- a/arm/timer.c +++ b/arm/timer.c @@ -136,7 +136,7 @@ static struct timer_info ptimer_info = { static void set_timer_irq_enabled(struct timer_info *info, bool enabled) { - u32 irq = PPI(info->irq); + u32 irq = info->irq; if (enabled) gic_enable_irq(irq); @@ -150,9 +150,9 @@ static void irq_handler(struct pt_regs *regs) u32 irqstat = gic_read_iar(); u32 irqnr = gic_iar_irqnr(irqstat); - if (irqnr == PPI(vtimer_info.irq)) { + if (irqnr == vtimer_info.irq) { info = &vtimer_info; - } else if (irqnr == PPI(ptimer_info.irq)) { + } else if (irqnr == ptimer_info.irq) { info = &ptimer_info; } else { if (irqnr != GICC_INT_SPURIOUS) @@ -182,9 +182,9 @@ static bool gic_timer_check_state(struct timer_info *info, /* Wait for up to 1s for the GIC to sample the interrupt. */ for (i = 0; i < 10; i++) { mdelay(100); - if (gic_irq_state(PPI(info->irq)) == expected_state) { + if (gic_irq_state(info->irq) == expected_state) { mdelay(100); - if (gic_irq_state(PPI(info->irq)) == expected_state) + if (gic_irq_state(info->irq) == expected_state) return true; } } From patchwork Tue May 30 16:09:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260662 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8268DC7EE23 for ; Tue, 30 May 2023 16:10:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233308AbjE3QK5 (ORCPT ); Tue, 30 May 2023 12:10:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233303AbjE3QKz (ORCPT ); Tue, 30 May 2023 12:10:55 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B1928E45 for ; Tue, 30 May 2023 09:10:27 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CE76D1A25; Tue, 30 May 2023 09:10:54 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6A12B3F663; Tue, 30 May 2023 09:10:08 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com, Andrew Jones Subject: [kvm-unit-tests PATCH v6 14/32] arm64: Add support for cpu initialization through ACPI Date: Tue, 30 May 2023 17:09:06 +0100 Message-Id: <20230530160924.82158-15-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the MADTs to discover the number of CPUs and their corresponding MIDR. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to discover the cores in the system using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones Reviewed-by: Shaoqin Huang --- lib/acpi.h | 63 +++++++++++++++++++++++++++++++++++++++++++++++++ lib/acpi.c | 20 ++++++++++++++++ lib/arm/setup.c | 42 ++++++++++++++++++++++++++++++--- 3 files changed, 122 insertions(+), 3 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index c8ff005c..0f2bea3e 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -17,6 +17,7 @@ #define XSDT_SIGNATURE ACPI_SIGNATURE('X','S','D','T') #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') +#define MADT_SIGNATURE ACPI_SIGNATURE('A','P','I','C') #define SPCR_SIGNATURE ACPI_SIGNATURE('S','P','C','R') #define GTDT_SIGNATURE ACPI_SIGNATURE('G','T','D','T') @@ -147,6 +148,67 @@ struct acpi_table_facs_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; +struct acpi_table_madt { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u32 address; /* Physical address of local APIC */ + u32 flags; +}; + +struct acpi_subtable_header { + u8 type; + u8 length; +}; + +typedef int (*acpi_table_handler)(struct acpi_subtable_header *header); + +/* 11: Generic interrupt - GICC (ACPI 5.0 + ACPI 6.0 + ACPI 6.3 changes) */ + +struct acpi_madt_generic_interrupt { + u8 type; + u8 length; + u16 reserved; /* reserved - must be zero */ + u32 cpu_interface_number; + u32 uid; + u32 flags; + u32 parking_version; + u32 performance_interrupt; + u64 parked_address; + u64 base_address; + u64 gicv_base_address; + u64 gich_base_address; + u32 vgic_interrupt; + u64 gicr_base_address; + u64 arm_mpidr; + u8 efficiency_class; + u8 reserved2[1]; + u16 spe_interrupt; /* ACPI 6.3 */ +}; + +/* Values for MADT subtable type in struct acpi_subtable_header */ + +enum acpi_madt_type { + ACPI_MADT_TYPE_LOCAL_APIC = 0, + ACPI_MADT_TYPE_IO_APIC = 1, + ACPI_MADT_TYPE_INTERRUPT_OVERRIDE = 2, + ACPI_MADT_TYPE_NMI_SOURCE = 3, + ACPI_MADT_TYPE_LOCAL_APIC_NMI = 4, + ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE = 5, + ACPI_MADT_TYPE_IO_SAPIC = 6, + ACPI_MADT_TYPE_LOCAL_SAPIC = 7, + ACPI_MADT_TYPE_INTERRUPT_SOURCE = 8, + ACPI_MADT_TYPE_LOCAL_X2APIC = 9, + ACPI_MADT_TYPE_LOCAL_X2APIC_NMI = 10, + ACPI_MADT_TYPE_GENERIC_INTERRUPT = 11, + ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR = 12, + ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13, + ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14, + ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15, + ACPI_MADT_TYPE_RESERVED = 16 /* 16 and greater are reserved */ +}; + +/* MADT Local APIC flags */ +#define ACPI_MADT_ENABLED (1) /* 00: Processor is usable if set */ + struct spcr_descriptor { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u8 interface_type; /* 0=full 16550, 1=subset of 16550 */ @@ -193,5 +255,6 @@ struct acpi_table_gtdt { void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); +void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler); #endif diff --git a/lib/acpi.c b/lib/acpi.c index f55d3e37..5065e48e 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -102,3 +102,23 @@ void *find_acpi_table_addr(u32 sig) return NULL; } + +void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler) +{ + struct acpi_table_madt *madt; + struct acpi_subtable_header *header; + void *end; + + madt = find_acpi_table_addr(MADT_SIGNATURE); + assert(madt); + + header = (void *)(ulong) madt + sizeof(struct acpi_table_madt); + end = (void *)((ulong) madt + madt->length); + + while ((void *)header < end) { + if (header->type == mtype) + handler(header); + + header = (void *)(ulong) header + header->length; + } +} diff --git a/lib/arm/setup.c b/lib/arm/setup.c index 1572c64e..59b0aedd 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -55,7 +55,7 @@ int mpidr_to_cpu(uint64_t mpidr) return -1; } -static void cpu_set(int fdtnode __unused, u64 regval, void *info __unused) +static void cpu_set_fdt(int fdtnode __unused, u64 regval, void *info __unused) { int cpu = nr_cpus++; @@ -65,13 +65,49 @@ static void cpu_set(int fdtnode __unused, u64 regval, void *info __unused) set_cpu_present(cpu, true); } +#ifdef CONFIG_EFI + +#include + +static int cpu_set_acpi(struct acpi_subtable_header *header) +{ + int cpu = nr_cpus++; + struct acpi_madt_generic_interrupt *gicc = (void *)header; + + assert_msg(cpu < NR_CPUS, "Number cpus exceeds maximum supported (%d).", NR_CPUS); + + cpus[cpu] = gicc->arm_mpidr; + set_cpu_present(cpu, true); + + return 0; +} + +static void cpu_init_acpi(void) +{ + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, cpu_set_acpi); +} + +#else + +static void cpu_init_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + static void cpu_init(void) { int ret; nr_cpus = 0; - ret = dt_for_each_cpu_node(cpu_set, NULL); - assert(ret == 0); + if (dt_available()) { + ret = dt_for_each_cpu_node(cpu_set_fdt, NULL); + assert(ret == 0); + } else { + cpu_init_acpi(); + } + set_cpu_online(0, true); } From patchwork Tue May 30 16:09:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260664 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E41DC77B7A for ; Tue, 30 May 2023 16:11:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233306AbjE3QLI (ORCPT ); Tue, 30 May 2023 12:11:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57252 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233314AbjE3QLG (ORCPT ); Tue, 30 May 2023 12:11:06 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0423E125 for ; Tue, 30 May 2023 09:10:39 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0B3B31A2D; Tue, 30 May 2023 09:10:56 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B58833F663; Tue, 30 May 2023 09:10:09 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 15/32] arm64: Add support for gic initialization through ACPI Date: Tue, 30 May 2023 17:09:07 +0100 Message-Id: <20230530160924.82158-16-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the MADTs to figure out if it implements a GICv2 or a GICv3 and discover the GIC parameters. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to discover the cores in the system using ACPI. Signed-off-by: Nikos Nikoleris --- lib/acpi.h | 44 +++++++++++++++- lib/libcflat.h | 1 + lib/acpi.c | 9 +++- lib/arm/gic.c | 139 ++++++++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 189 insertions(+), 4 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index 0f2bea3e..c330c877 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -184,6 +184,48 @@ struct acpi_madt_generic_interrupt { u16 spe_interrupt; /* ACPI 6.3 */ }; +/* 12: Generic Distributor (ACPI 5.0 + ACPI 6.0 changes) */ + +struct acpi_madt_generic_distributor { + struct acpi_subtable_header header; + u16 reserved; /* reserved - must be zero */ + u32 gic_id; + u64 base_address; + u32 global_irq_base; + u8 version; + u8 reserved2[3]; /* reserved - must be zero */ +}; + +/* Values for Version field above */ + +enum acpi_madt_gic_version { + ACPI_MADT_GIC_VERSION_NONE = 0, + ACPI_MADT_GIC_VERSION_V1 = 1, + ACPI_MADT_GIC_VERSION_V2 = 2, + ACPI_MADT_GIC_VERSION_V3 = 3, + ACPI_MADT_GIC_VERSION_V4 = 4, + ACPI_MADT_GIC_VERSION_RESERVED = 5 /* 5 and greater are reserved */ +}; + +/* 14: Generic Redistributor (ACPI 5.1) */ + +struct acpi_madt_generic_redistributor { + struct acpi_subtable_header header; + u16 reserved; /* reserved - must be zero */ + u64 base_address; + u32 length; +}; + +/* 15: Generic Translator (ACPI 6.0) */ + +struct acpi_madt_generic_translator { + struct acpi_subtable_header header; + u16 reserved; /* reserved - must be zero */ + u32 translation_id; + u64 base_address; + u32 reserved2; +}; + /* Values for MADT subtable type in struct acpi_subtable_header */ enum acpi_madt_type { @@ -255,6 +297,6 @@ struct acpi_table_gtdt { void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); -void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler); +int acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler); #endif diff --git a/lib/libcflat.h b/lib/libcflat.h index c1fd31ff..700f4352 100644 --- a/lib/libcflat.h +++ b/lib/libcflat.h @@ -161,6 +161,7 @@ extern void setup_vm(void); #define SZ_8K (1 << 13) #define SZ_16K (1 << 14) #define SZ_64K (1 << 16) +#define SZ_128K (1 << 17) #define SZ_1M (1 << 20) #define SZ_2M (1 << 21) #define SZ_1G (1 << 30) diff --git a/lib/acpi.c b/lib/acpi.c index 5065e48e..0440cddb 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -103,11 +103,12 @@ void *find_acpi_table_addr(u32 sig) return NULL; } -void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler) +int acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler) { struct acpi_table_madt *madt; struct acpi_subtable_header *header; void *end; + int count = 0; madt = find_acpi_table_addr(MADT_SIGNATURE); assert(madt); @@ -116,9 +117,13 @@ void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler end = (void *)((ulong) madt + madt->length); while ((void *)header < end) { - if (header->type == mtype) + if (header->type == mtype) { handler(header); + count++; + } header = (void *)(ulong) header + header->length; } + + return count; } diff --git a/lib/arm/gic.c b/lib/arm/gic.c index 89a15fe8..af43a96d 100644 --- a/lib/arm/gic.c +++ b/lib/arm/gic.c @@ -3,6 +3,7 @@ * * This work is licensed under the terms of the GNU LGPL, version 2. */ +#include #include #include #include @@ -120,7 +121,7 @@ int gic_version(void) return 0; } -int gic_init(void) +static int gic_init_fdt(void) { if (gicv2_init()) { gic_common_ops = &gicv2_common_ops; @@ -133,6 +134,142 @@ int gic_init(void) return gic_version(); } +#ifdef CONFIG_EFI + +#define ACPI_GICV2_DIST_MEM_SIZE (SZ_4K) +#define ACPI_GIC_CPU_IF_MEM_SIZE (SZ_8K) +#define ACPI_GICV3_DIST_MEM_SIZE (SZ_64K) +#define ACPI_GICV3_ITS_MEM_SIZE (SZ_128K) + +static int gic_acpi_version(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_distributor *dist = (void *)header; + int version = dist->version; + + if (version == 2) + gic_common_ops = &gicv2_common_ops; + else if (version == 3) + gic_common_ops = &gicv3_common_ops; + + return version; +} + +static int gicv2_acpi_parse_madt_cpu(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_interrupt *gicc = (void *)header; + static phys_addr_t gicc_base_address; + + if (!(gicc->flags & ACPI_MADT_ENABLED)) + return 0; + + if (!gicc_base_address) { + gicc_base_address = gicc->base_address; + gicv2_data.cpu_base = ioremap(gicc_base_address, ACPI_GIC_CPU_IF_MEM_SIZE); + } + assert(gicc_base_address == gicc->base_address); + + return 0; +} + +static int gicv2_acpi_parse_madt_dist(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_distributor *dist = (void *)header; + + gicv2_data.dist_base = ioremap(dist->base_address, ACPI_GICV2_DIST_MEM_SIZE); + + return 0; +} + +static int gicv3_acpi_parse_madt_gicc(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_interrupt *gicc = (void *)header; + static phys_addr_t gicr_base_address; + + if (!(gicc->flags & ACPI_MADT_ENABLED)) + return 0; + + if (!gicr_base_address) { + gicr_base_address = gicc->gicr_base_address; + gicv3_data.redist_bases[0] = ioremap(gicr_base_address, SZ_64K * 2); + } + assert(gicr_base_address == gicc->gicr_base_address); + + return 0; +} + +static int gicv3_acpi_parse_madt_dist(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_distributor *dist = (void *)header; + + gicv3_data.dist_base = ioremap(dist->base_address, ACPI_GICV3_DIST_MEM_SIZE); + + return 0; +} + +static int gicv3_acpi_parse_madt_redist(struct acpi_subtable_header *header) +{ + static int i; + struct acpi_madt_generic_redistributor *redist = (void *)header; + + gicv3_data.redist_bases[i++] = ioremap(redist->base_address, redist->length); + + return 0; +} + +static int gicv3_acpi_parse_madt_its(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_translator *its_entry = (void *)header; + + its_data.base = ioremap(its_entry->base_address, ACPI_GICV3_ITS_MEM_SIZE - 1); + + return 0; +} + +static int gic_init_acpi(void) +{ + int count; + + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, gic_acpi_version); + if (gic_version() == 2) { + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, + gicv2_acpi_parse_madt_cpu); + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, + gicv2_acpi_parse_madt_dist); + } else if (gic_version() == 3) { + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, + gicv3_acpi_parse_madt_dist); + count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR, + gicv3_acpi_parse_madt_redist); + if (!count) + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, + gicv3_acpi_parse_madt_gicc); + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_TRANSLATOR, + gicv3_acpi_parse_madt_its); +#ifdef __aarch64__ + its_init(); +#endif + } + + return gic_version(); +} + +#else + +static int gic_init_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif /* CONFIG_EFI */ + +int gic_init(void) +{ + if (dt_available()) + return gic_init_fdt(); + else + return gic_init_acpi(); +} + void gic_enable_defaults(void) { if (!gic_common_ops) { From patchwork Tue May 30 16:09:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260667 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F25CC77B7A for ; Tue, 30 May 2023 16:11:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233338AbjE3QLP (ORCPT ); Tue, 30 May 2023 12:11:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233318AbjE3QLN (ORCPT ); Tue, 30 May 2023 12:11:13 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id AA2F5136 for ; Tue, 30 May 2023 09:10:46 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 56EF616F2; Tue, 30 May 2023 09:10:57 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E67A73F663; Tue, 30 May 2023 09:10:10 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com, Andrew Jones Subject: [kvm-unit-tests PATCH v6 16/32] lib/printf: Support for precision modifier in printf Date: Tue, 30 May 2023 17:09:08 +0100 Message-Id: <20230530160924.82158-17-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This follows the typical format of: printf("%.Ns", *str); Where N might be a decimal digit string or '*'. This feature is used by a future change. See also: man 3 printf Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/printf.c | 95 ++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 78 insertions(+), 17 deletions(-) diff --git a/lib/printf.c b/lib/printf.c index 383799ec..d600199b 100644 --- a/lib/printf.c +++ b/lib/printf.c @@ -6,6 +6,7 @@ */ #include "libcflat.h" +#include "ctype.h" #define BUFSZ 2000 @@ -19,6 +20,7 @@ typedef struct strprops { char pad; int npad; bool alternate; + int precision; } strprops_t; static void addchar(pstream_t *p, char c) @@ -43,7 +45,7 @@ static void print_str(pstream_t *p, const char *s, strprops_t props) } } - while (*s) + while (*s && props.precision--) addchar(p, *s++); if (npad < 0) { @@ -73,12 +75,13 @@ static void print_int(pstream_t *ps, long long n, int base, strprops_t props) n /= base; } + while (p == buf || (p - buf < props.precision)) + *p++ = '0'; + props.precision = -1; + if (s) *p++ = '-'; - if (p == buf) - *p++ = '0'; - for (i = 0; i < (p - buf) / 2; ++i) { char tmp; @@ -104,8 +107,13 @@ static void print_unsigned(pstream_t *ps, unsigned long long n, int base, } if (p == buf) + props.alternate = false; + + while (p == buf || (p - buf < props.precision)) *p++ = '0'; - else if (props.alternate && base == 16) { + props.precision = -1; + + if (props.alternate && base == 16) { if (props.pad == '0') { addchar(ps, '0'); addchar(ps, 'x'); @@ -147,9 +155,56 @@ static int fmtnum(const char **fmt) return num; } +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static int skip_atoi(const char **s) +{ + int i = 0; + + do { + i = i*10 + *((*s)++) - '0'; + } while (isdigit(**s)); + + return i; +} + +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static int get_int(const char **fmt, va_list *ap) +{ + if (isdigit(**fmt)) + return skip_atoi(fmt); + + if (**fmt == '*') { + ++(*fmt); + /* it's the next argument */ + return va_arg(*ap, int); + } + return 0; +} + int vsnprintf(char *buf, int size, const char *fmt, va_list va) { pstream_t s; + va_list args; + + /* + * We want to pass our input va_list to helper functions by reference, + * but there's an annoying edge case. If va_list was originally passed + * to us by value, we could just pass &ap down to the helpers. This is + * the case on, for example, X86_32. + * However, on X86_64 (and possibly others), va_list is actually a + * size-1 array containing a structure. Our function parameter ap has + * decayed from T[1] to T*, and &ap has type T** rather than T(*)[1], + * which is what will be expected by a function taking a va_list * + * parameter. + * One standard way to solve this mess is by creating a copy in a local + * variable of type va_list and then passing a pointer to that local + * copy instead, which is what we do here. + */ + va_copy(args, va); s.buffer = buf; s.remain = size - 1; @@ -160,6 +215,7 @@ int vsnprintf(char *buf, int size, const char *fmt, va_list va) strprops_t props; memset(&props, 0, sizeof(props)); props.pad = ' '; + props.precision = -1; if (f != '%') { addchar(&s, f); @@ -172,11 +228,15 @@ morefmt: addchar(&s, '%'); break; case 'c': - addchar(&s, va_arg(va, int)); + addchar(&s, va_arg(args, int)); break; case '\0': --fmt; break; + case '.': + props.pad = ' '; + props.precision = get_int(&fmt, &args); + goto morefmt; case '#': props.alternate = true; goto morefmt; @@ -204,54 +264,55 @@ morefmt: case 'd': switch (nlong) { case 0: - print_int(&s, va_arg(va, int), 10, props); + print_int(&s, va_arg(args, int), 10, props); break; case 1: - print_int(&s, va_arg(va, long), 10, props); + print_int(&s, va_arg(args, long), 10, props); break; default: - print_int(&s, va_arg(va, long long), 10, props); + print_int(&s, va_arg(args, long long), 10, props); break; } break; case 'u': switch (nlong) { case 0: - print_unsigned(&s, va_arg(va, unsigned), 10, props); + print_unsigned(&s, va_arg(args, unsigned int), 10, props); break; case 1: - print_unsigned(&s, va_arg(va, unsigned long), 10, props); + print_unsigned(&s, va_arg(args, unsigned long), 10, props); break; default: - print_unsigned(&s, va_arg(va, unsigned long long), 10, props); + print_unsigned(&s, va_arg(args, unsigned long long), 10, props); break; } break; case 'x': switch (nlong) { case 0: - print_unsigned(&s, va_arg(va, unsigned), 16, props); + print_unsigned(&s, va_arg(args, unsigned int), 16, props); break; case 1: - print_unsigned(&s, va_arg(va, unsigned long), 16, props); + print_unsigned(&s, va_arg(args, unsigned long), 16, props); break; default: - print_unsigned(&s, va_arg(va, unsigned long long), 16, props); + print_unsigned(&s, va_arg(args, unsigned long long), 16, props); break; } break; case 'p': props.alternate = true; - print_unsigned(&s, (unsigned long)va_arg(va, void *), 16, props); + print_unsigned(&s, (unsigned long)va_arg(args, void *), 16, props); break; case 's': - print_str(&s, va_arg(va, const char *), props); + print_str(&s, va_arg(args, const char *), props); break; default: addchar(&s, f); break; } } + va_end(args); *s.buffer = 0; return s.added; } From patchwork Tue May 30 16:09:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260666 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B987C7EE23 for ; Tue, 30 May 2023 16:11:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233333AbjE3QLO (ORCPT ); Tue, 30 May 2023 12:11:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233329AbjE3QLN (ORCPT ); Tue, 30 May 2023 12:11:13 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 563A9137 for ; Tue, 30 May 2023 09:10:47 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 87E551A32; Tue, 30 May 2023 09:10:58 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3DFAE3F663; Tue, 30 May 2023 09:10:12 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 17/32] lib/printf: Add support for printing wide strings Date: Tue, 30 May 2023 17:09:09 +0100 Message-Id: <20230530160924.82158-18-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds support for wide strings (u16*) to printf() variants. This feature is used by a future change. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- lib/printf.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 100 insertions(+), 1 deletion(-) diff --git a/lib/printf.c b/lib/printf.c index d600199b..27041bb4 100644 --- a/lib/printf.c +++ b/lib/printf.c @@ -58,6 +58,102 @@ static void print_str(pstream_t *p, const char *s, strprops_t props) } } +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static u32 utf16_to_utf32(const u16 **s16) +{ + u16 c0, c1; + + c0 = *(*s16)++; + /* not a surrogate */ + if ((c0 & 0xf800) != 0xd800) + return c0; + /* invalid: low surrogate instead of high */ + if (c0 & 0x0400) + return 0xfffd; + c1 = **s16; + /* invalid: missing low surrogate */ + if ((c1 & 0xfc00) != 0xdc00) + return 0xfffd; + /* valid surrogate pair */ + ++(*s16); + return (0x10000 - (0xd800 << 10) - 0xdc00) + (c0 << 10) + c1; +} + +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static size_t utf16s_utf8nlen(const u16 *s16, size_t maxlen) +{ + size_t len, clen; + + for (len = 0; len < maxlen && *s16; len += clen) { + u16 c0 = *s16++; + + /* First, get the length for a BMP character */ + clen = 1 + (c0 >= 0x80) + (c0 >= 0x800); + if (len + clen > maxlen) + break; + /* + * If this is a high surrogate, and we're already at maxlen, we + * can't include the character if it's a valid surrogate pair. + * Avoid accessing one extra word just to check if it's valid + * or not. + */ + if ((c0 & 0xfc00) == 0xd800) { + if (len + clen == maxlen) + break; + if ((*s16 & 0xfc00) == 0xdc00) { + ++s16; + ++clen; + } + } + } + + return len; +} + +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static void print_wstring(pstream_t *p, const u16 *s, strprops_t props) +{ + const u16 *ws = (const u16 *)s; + size_t pos = 0, size = p->remain + 1, len = utf16s_utf8nlen(ws, props.precision); + + while (len-- > 0) { + u32 c32 = utf16_to_utf32(&ws); + u8 *s8; + size_t clen; + + if (c32 < 0x80) { + addchar(p, c32); + continue; + } + + /* Number of trailing octets */ + clen = 1 + (c32 >= 0x800) + (c32 >= 0x10000); + + len -= clen; + s8 = (u8 *)(p->buffer - p->added + pos); + + /* Avoid writing partial character */ + addchar(p, '\0'); + pos += clen; + if (pos >= size) + continue; + + /* Set high bits of leading octet */ + *s8 = (0xf00 >> 1) >> clen; + /* Write trailing octets in reverse order */ + for (s8 += clen; clen; --clen, c32 >>= 6) + *s8-- = 0x80 | (c32 & 0x3f); + /* Set low bits of leading octet */ + *s8 |= c32; + } +} + static char digits[16] = "0123456789abcdef"; static void print_int(pstream_t *ps, long long n, int base, strprops_t props) @@ -305,7 +401,10 @@ morefmt: print_unsigned(&s, (unsigned long)va_arg(args, void *), 16, props); break; case 's': - print_str(&s, va_arg(args, const char *), props); + if (nlong) + print_wstring(&s, va_arg(args, const u16 *), props); + else + print_str(&s, va_arg(args, const char *), props); break; default: addchar(&s, f); From patchwork Tue May 30 16:09:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260665 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E6E1C7EE23 for ; Tue, 30 May 2023 16:11:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233316AbjE3QLJ (ORCPT ); Tue, 30 May 2023 12:11:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233318AbjE3QLH (ORCPT ); Tue, 30 May 2023 12:11:07 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5B6BAE54 for ; Tue, 30 May 2023 09:10:40 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B8A911A9A; Tue, 30 May 2023 09:10:59 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6EDBD3F663; Tue, 30 May 2023 09:10:13 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 18/32] lib/efi: Add support for getting the cmdline Date: Tue, 30 May 2023 17:09:10 +0100 Message-Id: <20230530160924.82158-19-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds support for discovering the command line arguments, as a string. Then, we parse this string to populate __argc and __argv for EFI tests. Signed-off-by: Nikos Nikoleris --- lib/linux/efi.h | 20 ++++++++++ lib/argv.h | 1 + lib/argv.c | 2 +- lib/efi.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 124 insertions(+), 1 deletion(-) diff --git a/lib/linux/efi.h b/lib/linux/efi.h index 455625aa..9a1cf87b 100644 --- a/lib/linux/efi.h +++ b/lib/linux/efi.h @@ -60,6 +60,8 @@ typedef guid_t efi_guid_t; #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) +#define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) + typedef struct { efi_guid_t guid; void *table; @@ -416,6 +418,24 @@ struct efi_boot_memmap { unsigned long *buff_size; }; +#define __aligned_u64 u64 __attribute__((aligned(8))) + +struct efi_loaded_image_64 { + u32 revision; + efi_handle_t parent_handle; + efi_system_table_t *system_table; + efi_handle_t device_handle; + void *file_path; + void *reserved; + u32 load_options_size; + void *load_options; + void *image_base; + __aligned_u64 image_size; + unsigned int image_code_type; + unsigned int image_data_type; + efi_status_t (__efiapi * unload)(efi_handle_t image_handle); +}; + #define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) #define efi_rs_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) diff --git a/lib/argv.h b/lib/argv.h index 1fd746dc..0fa77725 100644 --- a/lib/argv.h +++ b/lib/argv.h @@ -9,6 +9,7 @@ #define _ARGV_H_ extern void __setup_args(void); +extern void setup_args(const char *args); extern void setup_args_progname(const char *args); extern void setup_env(char *env, int size); extern void add_setup_arg(const char *arg); diff --git a/lib/argv.c b/lib/argv.c index 9ffa673e..fa5ff9ae 100644 --- a/lib/argv.c +++ b/lib/argv.c @@ -41,7 +41,7 @@ void __setup_args(void) __argc = argv - __argv; } -static void setup_args(const char *args) +void setup_args(const char *args) { if (!args) return; diff --git a/lib/efi.c b/lib/efi.c index 64cc9789..f524ec9b 100644 --- a/lib/efi.c +++ b/lib/efi.c @@ -8,6 +8,9 @@ */ #include "efi.h" +#include +#include +#include #include #include @@ -96,6 +99,80 @@ static void efi_exit(efi_status_t code) efi_rs_call(reset_system, EFI_RESET_SHUTDOWN, code, 0, NULL); } +/* Adapted from drivers/firmware/efi/libstub/efi-stub.c */ +static char *efi_convert_cmdline(struct efi_loaded_image_64 *image, int *cmd_line_len) +{ + const u16 *s2; + unsigned long cmdline_addr = 0; + int options_chars = image->load_options_size; + const u16 *options = image->load_options; + int options_bytes = 0, safe_options_bytes = 0; /* UTF-8 bytes */ + bool in_quote = false; + efi_status_t status; + const int COMMAND_LINE_SIZE = 2048; + + if (options) { + s2 = options; + while (options_bytes < COMMAND_LINE_SIZE && options_chars--) { + u16 c = *s2++; + + if (c < 0x80) { + if (c == L'\0' || c == L'\n') + break; + if (c == L'"') + in_quote = !in_quote; + else if (!in_quote && isspace((char)c)) + safe_options_bytes = options_bytes; + + options_bytes++; + continue; + } + + /* + * Get the number of UTF-8 bytes corresponding to a + * UTF-16 character. + * The first part handles everything in the BMP. + */ + options_bytes += 2 + (c >= 0x800); + /* + * Add one more byte for valid surrogate pairs. Invalid + * surrogates will be replaced with 0xfffd and take up + * only 3 bytes. + */ + if ((c & 0xfc00) == 0xd800) { + /* + * If the very last word is a high surrogate, + * we must ignore it since we can't access the + * low surrogate. + */ + if (!options_chars) { + options_bytes -= 3; + } else if ((*s2 & 0xfc00) == 0xdc00) { + options_bytes++; + options_chars--; + s2++; + } + } + } + if (options_bytes >= COMMAND_LINE_SIZE) { + options_bytes = safe_options_bytes; + printf("Command line is too long: truncated to %d bytes\n", + options_bytes); + } + } + + options_bytes++; /* NUL termination */ + + status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, options_bytes, (void **)&cmdline_addr); + if (status != EFI_SUCCESS) + return NULL; + + snprintf((char *)cmdline_addr, options_bytes, "%.*ls", options_bytes - 1, options); + + *cmd_line_len = options_bytes; + return (char *)cmdline_addr; +} + efi_status_t efi_main(efi_handle_t handle, efi_system_table_t *sys_tab) { int ret; @@ -109,6 +186,31 @@ efi_status_t efi_main(efi_handle_t handle, efi_system_table_t *sys_tab) unsigned long map_size = 0, desc_size = 0, key = 0, buff_size = 0; u32 desc_ver; + /* Helper variables needed to get the cmdline */ + struct efi_loaded_image_64 *image; + efi_guid_t loaded_image_proto = LOADED_IMAGE_PROTOCOL_GUID; + char *cmdline_ptr = NULL; + int cmdline_size = 0; + + /* + * Get a handle to the loaded image protocol. This is used to get + * information about the running image, such as size and the command + * line. + */ + status = efi_bs_call(handle_protocol, handle, &loaded_image_proto, (void *)&image); + if (status != EFI_SUCCESS) { + printf("Failed to get loaded image protocol\n"); + goto efi_main_error; + } + + cmdline_ptr = efi_convert_cmdline(image, &cmdline_size); + if (!cmdline_ptr) { + printf("getting command line via LOADED_IMAGE_PROTOCOL\n"); + status = EFI_OUT_OF_RESOURCES; + goto efi_main_error; + } + setup_args(cmdline_ptr); + /* Set up efi_bootinfo */ efi_bootinfo.mem_map.map = ↦ efi_bootinfo.mem_map.map_size = &map_size; From patchwork Tue May 30 16:09:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260669 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2BF8C77B7A for ; Tue, 30 May 2023 16:11:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233345AbjE3QLR (ORCPT ); Tue, 30 May 2023 12:11:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233314AbjE3QLO (ORCPT ); Tue, 30 May 2023 12:11:14 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6084C180 for ; Tue, 30 May 2023 09:10:47 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 124911AED; Tue, 30 May 2023 09:11:01 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9FCB53F663; Tue, 30 May 2023 09:10:14 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 19/32] lib/efi: Add support for reading an FDT Date: Tue, 30 May 2023 17:09:11 +0100 Message-Id: <20230530160924.82158-20-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds support for reading enviroment variables. To do so it introduces a new GUID: 97ef3e03-7329-4a6a-b9ba-6c1fdcc5f823 that the user needs to provide when setting enviroment variables. For example, to set the path to the fdt a user can execute: In addition, this change add support for reading the fdt into memory and providing a pointer to the test through efi_bootinfo_t. Signed-off-by: Nikos Nikoleris --- lib/linux/efi.h | 101 ++++++++++++++++++++++++++++++++++++++++ lib/efi.h | 12 +++++ lib/efi.c | 120 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 233 insertions(+) diff --git a/lib/linux/efi.h b/lib/linux/efi.h index 9a1cf87b..bb6d5a85 100644 --- a/lib/linux/efi.h +++ b/lib/linux/efi.h @@ -12,6 +12,7 @@ #define BITS_PER_LONG 64 +#define EFI_ERROR(a) (((int64_t) a) < 0) #define EFI_SUCCESS 0 #define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1))) #define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1))) @@ -436,6 +437,106 @@ struct efi_loaded_image_64 { efi_status_t (__efiapi * unload)(efi_handle_t image_handle); }; + +typedef struct _efi_simple_file_system_protocol efi_simple_file_system_protocol_t; +typedef struct _efi_file_protocol efi_file_protocol_t; +typedef efi_simple_file_system_protocol_t efi_file_io_interface_t; +typedef efi_file_protocol_t efi_file_t; + +typedef efi_status_t efi_simple_file_system_protocol_open_volume( + efi_simple_file_system_protocol_t *this, + efi_file_protocol_t **root); + +#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID EFI_GUID(0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b) + +struct _efi_simple_file_system_protocol { + uint64_t revision; + efi_simple_file_system_protocol_open_volume __efiapi *open_volume; +}; + +/* Open modes */ +#define EFI_FILE_MODE_READ 0x0000000000000001ULL +#define EFI_FILE_MODE_WRITE 0x0000000000000002ULL +#define EFI_FILE_MODE_CREATE 0x8000000000000000ULL + +typedef efi_status_t efi_file_open(efi_file_protocol_t *this, + efi_file_protocol_t **new_handle, + efi_char16_t *file_name, + uint64_t open_mode, + uint64_t attributes); +typedef efi_status_t efi_file_close(efi_file_protocol_t *this); +typedef efi_status_t efi_file_delete(efi_file_protocol_t *this); +typedef efi_status_t efi_file_read(efi_file_protocol_t *this, + uint64_t *buffer_size, + void *buffer); +typedef efi_status_t efi_file_write(efi_file_protocol_t *this, + uint64_t *buffer_size, + void *buffer); +typedef efi_status_t efi_file_set_position(efi_file_protocol_t *this, + uint64_t position); +typedef efi_status_t efi_file_get_position(efi_file_protocol_t *this, + uint64_t *position); +typedef efi_status_t efi_file_get_info(efi_file_protocol_t *this, + efi_guid_t *information_type, + uint64_t *buffer_size, + void *buffer); +typedef efi_status_t efi_file_set_info(efi_file_protocol_t *this, + efi_guid_t *information_type, + uint64_t *buffer_size, + void *buffer); +typedef efi_status_t efi_file_flush(efi_file_protocol_t *this); + +typedef struct { + efi_event_t event; + efi_status_t status; + uint64_t buffer_size; + void *buffer; +} efi_file_io_open_t; + +typedef efi_status_t efi_file_open_ex(efi_file_protocol_t *this, + efi_file_protocol_t **new_handle, + efi_char16_t *file_name, + uint64_t open_mode, + uint64_t attributes, + efi_file_io_open_t *token); +typedef efi_status_t efi_file_read_ex(efi_file_protocol_t *this, + efi_file_io_open_t *token); +typedef efi_status_t efi_file_write_ex(efi_file_protocol_t *this, + efi_file_io_open_t *token); +typedef efi_status_t efi_file_flush_ex(efi_file_protocol_t *this, + efi_file_io_open_t *token); + +struct _efi_file_protocol { + uint64_t revision; + efi_file_open __efiapi *open; + efi_file_close __efiapi *close; + efi_file_delete __efiapi *delete; + efi_file_read __efiapi *read; + efi_file_write __efiapi *write; + efi_file_get_position __efiapi *get_position; + efi_file_set_position __efiapi *set_position; + efi_file_get_info __efiapi *get_info; + efi_file_set_info __efiapi *set_info; + efi_file_flush __efiapi *flush; + efi_file_open_ex __efiapi *open_ex; + efi_file_read_ex __efiapi *read_ex; + efi_file_write_ex __efiapi *write_ex; + efi_file_flush_ex __efiapi *flush_ex; +}; + +#define EFI_FILE_INFO_ID EFI_GUID(0x9576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) + +typedef struct { + uint64_t size; + uint64_t file_size; + uint64_t physical_size; + efi_time_t create_time; + efi_time_t last_access_time; + efi_time_t modification_time; + uint64_t attributes; + efi_char16_t file_name[1]; +} efi_file_info_t; + #define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) #define efi_rs_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) diff --git a/lib/efi.h b/lib/efi.h index ce8b74d7..db46d450 100644 --- a/lib/efi.h +++ b/lib/efi.h @@ -11,6 +11,17 @@ #include "linux/efi.h" #include +/* + * Define a GUID that we can use to to pass environment variables. + * + * For example, to set the variable var to the value val via the EFI shell: + * # setvar env -guid 97ef3e03-7329-4a6a-b9ba-6c1fdcc5f823 -rt =L"val" + */ +#define EFI_VAR_GUID EFI_GUID(0x97ef3e03, 0x7329, 0x4a6a, 0xb9, 0xba, 0x6c, 0x1f, 0xdc, 0xc5, 0xf8, 0x23); + +/* Names of environment variables we can handle */ +#define ENV_VARNAME_DTBFILE L"fdtfile" + /* * efi_bootinfo_t: stores EFI-related machine info retrieved before exiting EFI * boot services, and is then used by setup_efi(). setup_efi() cannot retrieve @@ -19,6 +30,7 @@ */ typedef struct { struct efi_boot_memmap mem_map; + const void *fdt; } efi_bootinfo_t; efi_status_t _relocate(long ldbase, Elf64_Dyn *dyn, efi_handle_t handle, diff --git a/lib/efi.c b/lib/efi.c index f524ec9b..2e127a40 100644 --- a/lib/efi.c +++ b/lib/efi.c @@ -173,6 +173,125 @@ static char *efi_convert_cmdline(struct efi_loaded_image_64 *image, int *cmd_lin return (char *)cmdline_addr; } +/* + * Open the file and read it into a buffer. + */ +static void efi_load_image(efi_handle_t handle, struct efi_loaded_image_64 *image, void **data, + int *datasize, efi_char16_t *path_name) +{ + uint64_t buffer_size = sizeof(efi_file_info_t); + efi_file_info_t *file_info; + efi_file_io_interface_t *io_if; + efi_file_t *root, *file; + efi_status_t status; + efi_guid_t file_system_proto_guid = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID; + efi_guid_t file_info_guid = EFI_FILE_INFO_ID; + + /* Open the device */ + status = efi_bs_call(handle_protocol, image->device_handle, &file_system_proto_guid, + (void **)&io_if); + if (status != EFI_SUCCESS) + return; + + status = io_if->open_volume(io_if, &root); + if (status != EFI_SUCCESS) + return; + + /* And then open the file */ + status = root->open(root, &file, path_name, EFI_FILE_MODE_READ, 0); + if (status != EFI_SUCCESS) { + printf("Failed to open %ls - %lx\n", path_name, status); + assert(status == EFI_SUCCESS); + } + + /* Find the file size in order to allocate the buffer */ + status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, buffer_size, (void **)&file_info); + if (status != EFI_SUCCESS) + return; + + status = file->get_info(file, &file_info_guid, &buffer_size, file_info); + if (status == EFI_BUFFER_TOO_SMALL) { + efi_free_pool(file_info); + status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, buffer_size, (void **)&file_info); + assert(file_info); + status = file->get_info(file, &file_info_guid, &buffer_size, file_info); + } + assert(status == EFI_SUCCESS); + + buffer_size = file_info->file_size; + + efi_free_pool(file_info); + + status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, buffer_size, (void **)data); + assert(*data); + /* Perform the actual read */ + status = file->read(file, &buffer_size, *data); + if (status == EFI_BUFFER_TOO_SMALL) { + efi_free_pool(*data); + status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, buffer_size, (void **)data); + status = file->read(file, &buffer_size, *data); + } + assert(status == EFI_SUCCESS); + + *datasize = buffer_size; +} + +static int efi_grow_buffer(efi_status_t *status, void **buffer, uint64_t buffer_size) +{ + int try_again; + + if (!*buffer && buffer_size) { + *status = EFI_BUFFER_TOO_SMALL; + } + + try_again = 0; + if (*status == EFI_BUFFER_TOO_SMALL) { + if (*buffer) + efi_free_pool(*buffer); + + efi_bs_call(allocate_pool, EFI_LOADER_DATA, buffer_size, buffer); + if (*buffer) { + try_again = 1; + } else { + *status = EFI_OUT_OF_RESOURCES; + } + } + + if (!try_again && EFI_ERROR(*status) && *buffer) { + efi_free_pool(*buffer); + *buffer = NULL; + } + + return try_again; +} + +static void* efi_get_var(efi_handle_t handle, struct efi_loaded_image_64 *image, efi_char16_t *var) +{ + efi_status_t status = EFI_SUCCESS; + void *val = NULL; + uint64_t val_size = 100; + efi_guid_t efi_var_guid = EFI_VAR_GUID; + + while (efi_grow_buffer(&status, &val, val_size)) + status = efi_rs_call(get_variable, var, &efi_var_guid, NULL, &val_size, val); + + return val; +} + +static void *efi_get_fdt(efi_handle_t handle, struct efi_loaded_image_64 *image) +{ + efi_char16_t var[] = ENV_VARNAME_DTBFILE; + efi_char16_t *val; + void *fdt = NULL; + int fdtsize; + + val = efi_get_var(handle, image, var); + if (val) + efi_load_image(handle, image, &fdt, &fdtsize, val); + + return fdt; +} + efi_status_t efi_main(efi_handle_t handle, efi_system_table_t *sys_tab) { int ret; @@ -211,6 +330,7 @@ efi_status_t efi_main(efi_handle_t handle, efi_system_table_t *sys_tab) } setup_args(cmdline_ptr); + efi_bootinfo.fdt = efi_get_fdt(handle, image); /* Set up efi_bootinfo */ efi_bootinfo.mem_map.map = ↦ efi_bootinfo.mem_map.map_size = &map_size; From patchwork Tue May 30 16:09:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260675 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7402DC7EE2E for ; Tue, 30 May 2023 16:11:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233369AbjE3QL1 (ORCPT ); Tue, 30 May 2023 12:11:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233356AbjE3QLZ (ORCPT ); Tue, 30 May 2023 12:11:25 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9C2601BB for ; Tue, 30 May 2023 09:10:58 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5D59C1AC1; Tue, 30 May 2023 09:11:02 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id ED8D23F663; Tue, 30 May 2023 09:10:15 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Andrew Jones , pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 20/32] arm/arm64: Rename etext to _etext Date: Tue, 30 May 2023 17:09:12 +0100 Message-Id: <20230530160924.82158-21-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Andrew Jones Rename etext to the more popular _etext allowing different linker scripts to more easily be used. Signed-off-by: Andrew Jones Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- lib/arm/setup.c | 4 ++-- arm/flat.lds | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/lib/arm/setup.c b/lib/arm/setup.c index 59b0aedd..03a4098e 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -33,7 +33,7 @@ #define NR_EXTRA_MEM_REGIONS 16 #define NR_INITIAL_MEM_REGIONS (MAX_DT_MEM_REGIONS + NR_EXTRA_MEM_REGIONS) -extern unsigned long etext; +extern unsigned long _etext; char *initrd; u32 initrd_size; @@ -157,7 +157,7 @@ unsigned int mem_region_get_flags(phys_addr_t paddr) static void mem_regions_add_assumed(void) { - phys_addr_t code_end = (phys_addr_t)(unsigned long)&etext; + phys_addr_t code_end = (phys_addr_t)(unsigned long)&_etext; struct mem_region *r; r = mem_region_find(code_end - 1); diff --git a/arm/flat.lds b/arm/flat.lds index 47fcb649..9016ac9f 100644 --- a/arm/flat.lds +++ b/arm/flat.lds @@ -27,7 +27,7 @@ SECTIONS PROVIDE(_text = .); .text : { *(.init) *(.text) *(.text.*) } . = ALIGN(64K); - PROVIDE(etext = .); + PROVIDE(_etext = .); PROVIDE(reloc_start = .); .rela.dyn : { *(.rela.dyn) } From patchwork Tue May 30 16:09:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260668 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A5A5C7EE2E for ; Tue, 30 May 2023 16:11:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233342AbjE3QLQ (ORCPT ); Tue, 30 May 2023 12:11:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233330AbjE3QLN (ORCPT ); Tue, 30 May 2023 12:11:13 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9DCA3184 for ; Tue, 30 May 2023 09:10:47 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A9D311BA8; Tue, 30 May 2023 09:11:03 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 458763F663; Tue, 30 May 2023 09:10:17 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com, Andrew Jones Subject: [kvm-unit-tests PATCH v6 21/32] lib: Avoid ms_abi for calls related to EFI on arm64 Date: Tue, 30 May 2023 17:09:13 +0100 Message-Id: <20230530160924.82158-22-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org x86_64 requires that EFI calls use the ms_abi calling convention. For arm64 this is unnecessary. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/linux/efi.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/linux/efi.h b/lib/linux/efi.h index bb6d5a85..1d34c9a0 100644 --- a/lib/linux/efi.h +++ b/lib/linux/efi.h @@ -34,7 +34,11 @@ typedef u16 efi_char16_t; /* UNICODE character */ typedef u64 efi_physical_addr_t; typedef void *efi_handle_t; +#ifdef __x86_64__ #define __efiapi __attribute__((ms_abi)) +#else +#define __efiapi +#endif /* * The UEFI spec and EDK2 reference implementation both define EFI_GUID as From patchwork Tue May 30 16:09:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260676 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB4EBC77B7A for ; Tue, 30 May 2023 16:11:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233373AbjE3QL2 (ORCPT ); Tue, 30 May 2023 12:11:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57522 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233351AbjE3QLZ (ORCPT ); Tue, 30 May 2023 12:11:25 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DA5B01BC for ; Tue, 30 May 2023 09:10:58 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 024721BB2; Tue, 30 May 2023 09:11:05 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 90DD83F663; Tue, 30 May 2023 09:10:18 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Andrew Jones , pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 22/32] arm64: Add a new type of memory type flag MR_F_RESERVED Date: Tue, 30 May 2023 17:09:14 +0100 Message-Id: <20230530160924.82158-23-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Andrew Jones This will be used by future change to add PTE entries for special EFI memory regions. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- lib/arm/asm/setup.h | 1 + lib/arm/mmu.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/lib/arm/asm/setup.h b/lib/arm/asm/setup.h index f0e70b11..64cd379b 100644 --- a/lib/arm/asm/setup.h +++ b/lib/arm/asm/setup.h @@ -15,6 +15,7 @@ extern int nr_cpus; #define MR_F_IO (1U << 0) #define MR_F_CODE (1U << 1) +#define MR_F_RESERVED (1U << 2) #define MR_F_UNKNOWN (1U << 31) struct mem_region { diff --git a/lib/arm/mmu.c b/lib/arm/mmu.c index 18e32b2b..2f4ec815 100644 --- a/lib/arm/mmu.c +++ b/lib/arm/mmu.c @@ -222,6 +222,10 @@ void *setup_mmu(phys_addr_t phys_end, void *unused) for (r = mem_regions; r->end; ++r) { if (r->flags & MR_F_IO) { continue; + } else if (r->flags & MR_F_RESERVED) { + /* Reserved pages need to be writable for whatever reserved them */ + mmu_set_range_ptes(mmu_idmap, r->start, r->start, r->end, + __pgprot(PTE_WBWA)); } else if (r->flags & MR_F_CODE) { /* armv8 requires code shared between EL1 and EL0 to be read-only */ mmu_set_range_ptes(mmu_idmap, r->start, r->start, r->end, From patchwork Tue May 30 16:09:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260671 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87106C7EE23 for ; Tue, 30 May 2023 16:11:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233352AbjE3QLU (ORCPT ); Tue, 30 May 2023 12:11:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233318AbjE3QLP (ORCPT ); Tue, 30 May 2023 12:11:15 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9F8C318B for ; Tue, 30 May 2023 09:10:47 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3479B1BC0; Tue, 30 May 2023 09:11:06 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DC09C3F663; Tue, 30 May 2023 09:10:19 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 23/32] arm64: Add a setup sequence for systems that boot through EFI Date: Tue, 30 May 2023 17:09:15 +0100 Message-Id: <20230530160924.82158-24-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change implements an alternative setup sequence for the system when we are booting through EFI. The memory map is discovered through EFI boot services and devices through ACPI. This change is based on a change initially proposed by Andrew Jones Signed-off-by: Nikos Nikoleris Reviewed-by: Shaoqin Huang --- lib/linux/efi.h | 1 + lib/arm/asm/setup.h | 8 ++ lib/arm/setup.c | 186 +++++++++++++++++++++++++++++++++++++++++++- arm/cstart.S | 1 + arm/cstart64.S | 1 + 5 files changed, 194 insertions(+), 3 deletions(-) diff --git a/lib/linux/efi.h b/lib/linux/efi.h index 1d34c9a0..410f0b1a 100644 --- a/lib/linux/efi.h +++ b/lib/linux/efi.h @@ -64,6 +64,7 @@ typedef guid_t efi_guid_t; (c) & 0xff, ((c) >> 8) & 0xff, d } } #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) +#define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) #define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) diff --git a/lib/arm/asm/setup.h b/lib/arm/asm/setup.h index 64cd379b..06069116 100644 --- a/lib/arm/asm/setup.h +++ b/lib/arm/asm/setup.h @@ -38,4 +38,12 @@ extern unsigned int mem_region_get_flags(phys_addr_t paddr); void setup(const void *fdt, phys_addr_t freemem_start); +#ifdef CONFIG_EFI + +#include + +efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo); + +#endif + #endif /* _ASMARM_SETUP_H_ */ diff --git a/lib/arm/setup.c b/lib/arm/setup.c index 03a4098e..c4f495a9 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -30,10 +30,10 @@ #include "io.h" #define MAX_DT_MEM_REGIONS 16 -#define NR_EXTRA_MEM_REGIONS 16 +#define NR_EXTRA_MEM_REGIONS 64 #define NR_INITIAL_MEM_REGIONS (MAX_DT_MEM_REGIONS + NR_EXTRA_MEM_REGIONS) -extern unsigned long _etext; +extern unsigned long _text, _etext, _data, _edata; char *initrd; u32 initrd_size; @@ -43,7 +43,10 @@ int nr_cpus; static struct mem_region __initial_mem_regions[NR_INITIAL_MEM_REGIONS + 1]; struct mem_region *mem_regions = __initial_mem_regions; -phys_addr_t __phys_offset, __phys_end; +phys_addr_t __phys_offset = (phys_addr_t)-1, __phys_end = 0; + +extern void exceptions_init(void); +extern void asm_mmu_disable(void); int mpidr_to_cpu(uint64_t mpidr) { @@ -289,3 +292,180 @@ void setup(const void *fdt, phys_addr_t freemem_start) if (!(auxinfo.flags & AUXINFO_MMU_OFF)) setup_vm(); } + +#ifdef CONFIG_EFI + +#include + +static efi_status_t setup_rsdp(efi_bootinfo_t *efi_bootinfo) +{ + efi_status_t status; + struct acpi_table_rsdp *rsdp; + + /* + * RSDP resides in an EFI_ACPI_RECLAIM_MEMORY region, which is not used + * by kvm-unit-tests arm64 memory allocator. So it is not necessary to + * copy the data structure to another memory region to prevent + * unintentional overwrite. + */ + status = efi_get_system_config_table(ACPI_20_TABLE_GUID, (void **)&rsdp); + if (status != EFI_SUCCESS) + return status; + + set_efi_rsdp(rsdp); + + return EFI_SUCCESS; +} + +static efi_status_t efi_mem_init(efi_bootinfo_t *efi_bootinfo) +{ + int i; + unsigned long free_mem_pages = 0; + unsigned long free_mem_start = 0; + struct efi_boot_memmap *map = &(efi_bootinfo->mem_map); + efi_memory_desc_t *buffer = *map->map; + efi_memory_desc_t *d = NULL; + phys_addr_t base, top; + struct mem_region r; + uintptr_t text = (uintptr_t)&_text, etext = __ALIGN((uintptr_t)&_etext, 4096); + uintptr_t data = (uintptr_t)&_data, edata = __ALIGN((uintptr_t)&_edata, 4096); + + /* + * Record the largest free EFI_CONVENTIONAL_MEMORY region + * which will be used to set up the memory allocator, so that + * the memory allocator can work in the largest free + * continuous memory region. + */ + for (i = 0; i < *(map->map_size); i += *(map->desc_size)) { + d = (efi_memory_desc_t *)(&((u8 *)buffer)[i]); + + r.start = d->phys_addr; + r.end = d->phys_addr + d->num_pages * EFI_PAGE_SIZE; + r.flags = 0; + + switch (d->type) { + case EFI_RESERVED_TYPE: + case EFI_LOADER_DATA: + case EFI_BOOT_SERVICES_CODE: + case EFI_BOOT_SERVICES_DATA: + case EFI_RUNTIME_SERVICES_CODE: + case EFI_RUNTIME_SERVICES_DATA: + case EFI_UNUSABLE_MEMORY: + case EFI_ACPI_RECLAIM_MEMORY: + case EFI_ACPI_MEMORY_NVS: + case EFI_PAL_CODE: + r.flags = MR_F_RESERVED; + break; + case EFI_MEMORY_MAPPED_IO: + case EFI_MEMORY_MAPPED_IO_PORT_SPACE: + r.flags = MR_F_IO; + break; + case EFI_LOADER_CODE: + if (r.start <= text && r.end > text) { + /* This is the unit test region. Flag the code separately. */ + phys_addr_t tmp = r.end; + + assert(etext <= data); + assert(edata <= r.end); + r.flags = MR_F_CODE; + r.end = data; + mem_region_add(&r); + r.start = data; + r.end = tmp; + r.flags = 0; + } else { + r.flags = MR_F_RESERVED; + } + break; + case EFI_CONVENTIONAL_MEMORY: + if (free_mem_pages < d->num_pages) { + free_mem_pages = d->num_pages; + free_mem_start = d->phys_addr; + } + break; + } + + if (!(r.flags & MR_F_IO)) { + if (r.start < __phys_offset) + __phys_offset = r.start; + if (r.end > __phys_end) + __phys_end = r.end; + } + mem_region_add(&r); + } + __phys_end &= PHYS_MASK; + asm_mmu_disable(); + + if (free_mem_pages == 0) + return EFI_OUT_OF_RESOURCES; + + assert(sizeof(long) == 8 || free_mem_start < (3ul << 30)); + + phys_alloc_init(free_mem_start, free_mem_pages << EFI_PAGE_SHIFT); + phys_alloc_set_minimum_alignment(SMP_CACHE_BYTES); + + phys_alloc_get_unused(&base, &top); + base = PAGE_ALIGN(base); + top = top & PAGE_MASK; + assert(sizeof(long) == 8 || !(base >> 32)); + if (sizeof(long) != 8 && (top >> 32) != 0) + top = ((uint64_t)1 << 32); + page_alloc_init_area(0, base >> PAGE_SHIFT, top >> PAGE_SHIFT); + page_alloc_ops_enable(); + + return EFI_SUCCESS; +} + +efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo) +{ + efi_status_t status; + + struct thread_info *ti = current_thread_info(); + + memset(ti, 0, sizeof(*ti)); + + exceptions_init(); + + status = efi_mem_init(efi_bootinfo); + if (status != EFI_SUCCESS) { + printf("Failed to initialize memory: "); + switch (status) { + case EFI_OUT_OF_RESOURCES: + printf("No free memory region\n"); + break; + default: + printf("Unknown error\n"); + break; + } + return status; + } + + status = setup_rsdp(efi_bootinfo); + if (status != EFI_SUCCESS) { + printf("Cannot find RSDP in EFI system table\n"); + return status; + } + + psci_set_conduit(); + cpu_init(); + /* cpu_init must be called before thread_info_init */ + thread_info_init(current_thread_info(), 0); + /* mem_init must be called before io_init */ + io_init(); + + timer_save_state(); + if (initrd) { + /* environ is currently the only file in the initrd */ + char *env = malloc(initrd_size); + + memcpy(env, initrd, initrd_size); + setup_env(env, initrd_size); + } + + if (!(auxinfo.flags & AUXINFO_MMU_OFF)) + setup_vm(); + + return EFI_SUCCESS; +} + +#endif diff --git a/arm/cstart.S b/arm/cstart.S index 7036e67f..3dd71ed9 100644 --- a/arm/cstart.S +++ b/arm/cstart.S @@ -242,6 +242,7 @@ asm_mmu_disable: * * Input r0 is the stack top, which is the exception stacks base */ +.globl exceptions_init exceptions_init: mrc p15, 0, r2, c1, c0, 0 @ read SCTLR bic r2, #CR_V @ SCTLR.V := 0 diff --git a/arm/cstart64.S b/arm/cstart64.S index e4ab7d06..223c1092 100644 --- a/arm/cstart64.S +++ b/arm/cstart64.S @@ -265,6 +265,7 @@ asm_mmu_disable: * Vectors */ +.globl exceptions_init exceptions_init: adrp x4, vector_table add x4, x4, :lo12:vector_table From patchwork Tue May 30 16:09:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260678 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6EB4C77B7A for ; Tue, 30 May 2023 16:11:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233356AbjE3QLb (ORCPT ); Tue, 30 May 2023 12:11:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233368AbjE3QL1 (ORCPT ); Tue, 30 May 2023 12:11:27 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DA72B1BD for ; Tue, 30 May 2023 09:10:58 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 632D31756; Tue, 30 May 2023 09:11:07 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1988F3F663; Tue, 30 May 2023 09:10:20 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 24/32] arm64: Copy code from GNU-EFI Date: Tue, 30 May 2023 17:09:16 +0100 Message-Id: <20230530160924.82158-25-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds unmodified dependencies that we need from GNU-EFI in order to build arm64 EFI apps. GNU-EFI sources from https://git.code.sf.net/p/gnu-efi/code v3.0.14 Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- arm/efi/elf_aarch64_efi.lds | 63 +++++++++++++++++ arm/efi/crt0-efi-aarch64.S | 130 ++++++++++++++++++++++++++++++++++++ arm/efi/reloc_aarch64.c | 97 +++++++++++++++++++++++++++ 3 files changed, 290 insertions(+) create mode 100644 arm/efi/elf_aarch64_efi.lds create mode 100644 arm/efi/crt0-efi-aarch64.S create mode 100644 arm/efi/reloc_aarch64.c diff --git a/arm/efi/elf_aarch64_efi.lds b/arm/efi/elf_aarch64_efi.lds new file mode 100644 index 00000000..836d9825 --- /dev/null +++ b/arm/efi/elf_aarch64_efi.lds @@ -0,0 +1,63 @@ +OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64") +OUTPUT_ARCH(aarch64) +ENTRY(_start) +SECTIONS +{ + .text 0x0 : { + _text = .; + *(.text.head) + *(.text) + *(.text.*) + *(.gnu.linkonce.t.*) + *(.srodata) + *(.rodata*) + . = ALIGN(16); + } + _etext = .; + _text_size = . - _text; + .dynamic : { *(.dynamic) } + .data : ALIGN(4096) + { + _data = .; + *(.sdata) + *(.data) + *(.data1) + *(.data.*) + *(.got.plt) + *(.got) + + /* the EFI loader doesn't seem to like a .bss section, so we stick + it all into .data: */ + . = ALIGN(16); + _bss = .; + *(.sbss) + *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(16); + _bss_end = .; + } + + .rela.dyn : { *(.rela.dyn) } + .rela.plt : { *(.rela.plt) } + .rela.got : { *(.rela.got) } + .rela.data : { *(.rela.data) *(.rela.data*) } + . = ALIGN(512); + _edata = .; + _data_size = . - _data; + + . = ALIGN(4096); + .dynsym : { *(.dynsym) } + . = ALIGN(4096); + .dynstr : { *(.dynstr) } + . = ALIGN(4096); + .note.gnu.build-id : { *(.note.gnu.build-id) } + /DISCARD/ : + { + *(.rel.reloc) + *(.eh_frame) + *(.note.GNU-stack) + } + .comment 0 : { *(.comment) } +} diff --git a/arm/efi/crt0-efi-aarch64.S b/arm/efi/crt0-efi-aarch64.S new file mode 100644 index 00000000..d50e78dd --- /dev/null +++ b/arm/efi/crt0-efi-aarch64.S @@ -0,0 +1,130 @@ +/* + * crt0-efi-aarch64.S - PE/COFF header for AArch64 EFI applications + * + * Copright (C) 2014 Linaro Ltd. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice and this list of conditions, without modification. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License as published by the Free Software Foundation; + * either version 2 of the License, or (at your option) any later version. + */ + + .section .text.head + + /* + * Magic "MZ" signature for PE/COFF + */ + .globl ImageBase +ImageBase: + .ascii "MZ" + .skip 58 // 'MZ' + pad + offset == 64 + .long pe_header - ImageBase // Offset to the PE header. +pe_header: + .ascii "PE" + .short 0 +coff_header: + .short 0xaa64 // AArch64 + .short 2 // nr_sections + .long 0 // TimeDateStamp + .long 0 // PointerToSymbolTable + .long 0 // NumberOfSymbols + .short section_table - optional_header // SizeOfOptionalHeader + .short 0x206 // Characteristics. + // IMAGE_FILE_DEBUG_STRIPPED | + // IMAGE_FILE_EXECUTABLE_IMAGE | + // IMAGE_FILE_LINE_NUMS_STRIPPED +optional_header: + .short 0x20b // PE32+ format + .byte 0x02 // MajorLinkerVersion + .byte 0x14 // MinorLinkerVersion + .long _data - _start // SizeOfCode + .long _data_size // SizeOfInitializedData + .long 0 // SizeOfUninitializedData + .long _start - ImageBase // AddressOfEntryPoint + .long _start - ImageBase // BaseOfCode + +extra_header_fields: + .quad 0 // ImageBase + .long 0x1000 // SectionAlignment + .long 0x200 // FileAlignment + .short 0 // MajorOperatingSystemVersion + .short 0 // MinorOperatingSystemVersion + .short 0 // MajorImageVersion + .short 0 // MinorImageVersion + .short 0 // MajorSubsystemVersion + .short 0 // MinorSubsystemVersion + .long 0 // Win32VersionValue + + .long _edata - ImageBase // SizeOfImage + + // Everything before the kernel image is considered part of the header + .long _start - ImageBase // SizeOfHeaders + .long 0 // CheckSum + .short EFI_SUBSYSTEM // Subsystem + .short 0 // DllCharacteristics + .quad 0 // SizeOfStackReserve + .quad 0 // SizeOfStackCommit + .quad 0 // SizeOfHeapReserve + .quad 0 // SizeOfHeapCommit + .long 0 // LoaderFlags + .long 0x6 // NumberOfRvaAndSizes + + .quad 0 // ExportTable + .quad 0 // ImportTable + .quad 0 // ResourceTable + .quad 0 // ExceptionTable + .quad 0 // CertificationTable + .quad 0 // BaseRelocationTable + + // Section table +section_table: + .ascii ".text\0\0\0" + .long _data - _start // VirtualSize + .long _start - ImageBase // VirtualAddress + .long _data - _start // SizeOfRawData + .long _start - ImageBase // PointerToRawData + + .long 0 // PointerToRelocations (0 for executables) + .long 0 // PointerToLineNumbers (0 for executables) + .short 0 // NumberOfRelocations (0 for executables) + .short 0 // NumberOfLineNumbers (0 for executables) + .long 0x60000020 // Characteristics (section flags) + + .ascii ".data\0\0\0" + .long _data_size // VirtualSize + .long _data - ImageBase // VirtualAddress + .long _data_size // SizeOfRawData + .long _data - ImageBase // PointerToRawData + + .long 0 // PointerToRelocations (0 for executables) + .long 0 // PointerToLineNumbers (0 for executables) + .short 0 // NumberOfRelocations (0 for executables) + .short 0 // NumberOfLineNumbers (0 for executables) + .long 0xc0000040 // Characteristics (section flags) + + .align 12 +_start: + stp x29, x30, [sp, #-32]! + mov x29, sp + + stp x0, x1, [sp, #16] + mov x2, x0 + mov x3, x1 + adr x0, ImageBase + adrp x1, _DYNAMIC + add x1, x1, #:lo12:_DYNAMIC + bl _relocate + cbnz x0, 0f + + ldp x0, x1, [sp, #16] + bl efi_main + +0: ldp x29, x30, [sp], #32 + ret diff --git a/arm/efi/reloc_aarch64.c b/arm/efi/reloc_aarch64.c new file mode 100644 index 00000000..08672796 --- /dev/null +++ b/arm/efi/reloc_aarch64.c @@ -0,0 +1,97 @@ +/* reloc_aarch64.c - position independent x86 ELF shared object relocator + Copyright (C) 2014 Linaro Ltd. + Copyright (C) 1999 Hewlett-Packard Co. + Contributed by David Mosberger . + + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + * Neither the name of Hewlett-Packard Co. nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. +*/ + +#include +#include + +#include + +EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn, + EFI_HANDLE image EFI_UNUSED, + EFI_SYSTEM_TABLE *systab EFI_UNUSED) +{ + long relsz = 0, relent = 0; + Elf64_Rela *rel = 0; + unsigned long *addr; + int i; + + for (i = 0; dyn[i].d_tag != DT_NULL; ++i) { + switch (dyn[i].d_tag) { + case DT_RELA: + rel = (Elf64_Rela*) + ((unsigned long)dyn[i].d_un.d_ptr + + ldbase); + break; + + case DT_RELASZ: + relsz = dyn[i].d_un.d_val; + break; + + case DT_RELAENT: + relent = dyn[i].d_un.d_val; + break; + + default: + break; + } + } + + if (!rel && relent == 0) + return EFI_SUCCESS; + + if (!rel || relent == 0) + return EFI_LOAD_ERROR; + + while (relsz > 0) { + /* apply the relocs */ + switch (ELF64_R_TYPE (rel->r_info)) { + case R_AARCH64_NONE: + break; + + case R_AARCH64_RELATIVE: + addr = (unsigned long *) + (ldbase + rel->r_offset); + *addr = ldbase + rel->r_addend; + break; + + default: + break; + } + rel = (Elf64_Rela*) ((char *) rel + relent); + relsz -= relent; + } + return EFI_SUCCESS; +} From patchwork Tue May 30 16:09:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260670 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19A19C7EE23 for ; Tue, 30 May 2023 16:11:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233343AbjE3QLT (ORCPT ); Tue, 30 May 2023 12:11:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233337AbjE3QLP (ORCPT ); Tue, 30 May 2023 12:11:15 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 8796C189 for ; Tue, 30 May 2023 09:10:48 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 93ADD16F8; Tue, 30 May 2023 09:11:08 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 49ED13F663; Tue, 30 May 2023 09:10:22 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 25/32] arm64: Change GNU-EFI imported code to use defined types Date: Tue, 30 May 2023 17:09:17 +0100 Message-Id: <20230530160924.82158-26-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Convert some types to avoid dependency on gnu-efi's and . Signed-off-by: Nikos Nikoleris --- arm/efi/reloc_aarch64.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arm/efi/reloc_aarch64.c b/arm/efi/reloc_aarch64.c index 08672796..5ba0ba1f 100644 --- a/arm/efi/reloc_aarch64.c +++ b/arm/efi/reloc_aarch64.c @@ -35,13 +35,10 @@ */ #include -#include - #include -EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn, - EFI_HANDLE image EFI_UNUSED, - EFI_SYSTEM_TABLE *systab EFI_UNUSED) +efi_status_t _relocate(long ldbase, Elf64_Dyn *dyn, efi_handle_t image, + efi_system_table_t *sys_tab) { long relsz = 0, relent = 0; Elf64_Rela *rel = 0; From patchwork Tue May 30 16:09:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260677 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9A84CC7EE23 for ; Tue, 30 May 2023 16:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233370AbjE3QLa (ORCPT ); Tue, 30 May 2023 12:11:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233318AbjE3QL0 (ORCPT ); Tue, 30 May 2023 12:11:26 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5DFFBFE for ; Tue, 30 May 2023 09:10:59 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C46981758; Tue, 30 May 2023 09:11:09 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7A8CC3F663; Tue, 30 May 2023 09:10:23 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 26/32] arm64: Use code from the gnu-efi when booting with EFI Date: Tue, 30 May 2023 17:09:18 +0100 Message-Id: <20230530160924.82158-27-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org arm/efi/crt0-efi-aarch64.S defines the header and the handover sequence from EFI to a efi_main. This change includes the whole file in arm/cstart64.S when we compile with EFI support. In addition, we change the handover code in arm/efi/crt0-efi-aarch64.S to align the stack pointer. This alignment is necessary because we make assumptions about cpu0's stack alignment and most importantly we place its thread_info at the bottom of this stack. Signed-off-by: Nikos Nikoleris --- arm/cstart64.S | 6 ++++++ arm/efi/crt0-efi-aarch64.S | 19 +++++++++++++++---- 2 files changed, 21 insertions(+), 4 deletions(-) diff --git a/arm/cstart64.S b/arm/cstart64.S index 223c1092..cbd6b511 100644 --- a/arm/cstart64.S +++ b/arm/cstart64.S @@ -15,6 +15,10 @@ #include #include +#ifdef CONFIG_EFI +#include "efi/crt0-efi-aarch64.S" +#else + .macro zero_range, tmp1, tmp2 9998: cmp \tmp1, \tmp2 b.eq 9997f @@ -107,6 +111,8 @@ start: bl exit b halt +#endif + .text /* diff --git a/arm/efi/crt0-efi-aarch64.S b/arm/efi/crt0-efi-aarch64.S index d50e78dd..5d0dc04a 100644 --- a/arm/efi/crt0-efi-aarch64.S +++ b/arm/efi/crt0-efi-aarch64.S @@ -111,10 +111,17 @@ section_table: .align 12 _start: - stp x29, x30, [sp, #-32]! + stp x29, x30, [sp, #-16]! + + /* Align sp; this is necessary due to way we store cpu0's thread_info */ mov x29, sp + mov x30, sp + and x30, x30, #THREAD_MASK + mov sp, x30 + str x29, [sp, #-16]! + + stp x0, x1, [sp, #-16]! - stp x0, x1, [sp, #16] mov x2, x0 mov x3, x1 adr x0, ImageBase @@ -123,8 +130,12 @@ _start: bl _relocate cbnz x0, 0f - ldp x0, x1, [sp, #16] + ldp x0, x1, [sp], #16 bl efi_main -0: ldp x29, x30, [sp], #32 + /* Restore sp */ + ldr x30, [sp], #16 + mov sp, x30 + +0: ldp x29, x30, [sp], #16 ret From patchwork Tue May 30 16:09:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260679 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38E64C77B7A for ; Tue, 30 May 2023 16:11:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233413AbjE3QLp (ORCPT ); Tue, 30 May 2023 12:11:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233375AbjE3QLk (ORCPT ); Tue, 30 May 2023 12:11:40 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B24D912D for ; Tue, 30 May 2023 09:11:17 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 031261BB0; Tue, 30 May 2023 09:11:11 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AB4DF3F663; Tue, 30 May 2023 09:10:24 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 27/32] lib: Avoid external dependency in libelf Date: Tue, 30 May 2023 17:09:19 +0100 Message-Id: <20230530160924.82158-28-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org There is just a small number of definitions we need from uapi/linux/elf.h and asm/elf.h and the relocation code is self-contained. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- lib/elf.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 lib/elf.h diff --git a/lib/elf.h b/lib/elf.h new file mode 100644 index 00000000..abd5cf4b --- /dev/null +++ b/lib/elf.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: LGPL-2.0-or-later */ +/* + * Relevant definitions from uapi/linux/elf.h and asm/elf.h + */ + +#ifndef _ELF_H_ +#define _ELF_H_ + +#include + +/* 64-bit ELF base types. */ +typedef u64 Elf64_Addr; +typedef u64 Elf64_Xword; +typedef s64 Elf64_Sxword; + +typedef struct { + Elf64_Sxword d_tag; /* entry tag value */ + union { + Elf64_Xword d_val; + Elf64_Addr d_ptr; + } d_un; +} Elf64_Dyn; + +typedef struct elf64_rel { + Elf64_Addr r_offset; /* Location at which to apply the action */ + Elf64_Xword r_info; /* index and type of relocation */ +} Elf64_Rel; + +typedef struct elf64_rela { + Elf64_Addr r_offset; /* Location at which to apply the action */ + Elf64_Xword r_info; /* index and type of relocation */ + Elf64_Sxword r_addend; /* Constant addend used to compute value */ +} Elf64_Rela; + +/* This is the info that is needed to parse the dynamic section of the file */ +#define DT_NULL 0 +#define DT_RELA 7 +#define DT_RELASZ 8 +#define DT_RELAENT 9 + +/* x86 relocation types. */ +#define R_X86_64_NONE 0 /* No reloc */ +#define R_X86_64_RELATIVE 8 /* Adjust by program base */ + + +/* + * AArch64 static relocation types. + */ + +/* Miscellaneous. */ +#define R_AARCH64_NONE 256 +#define R_AARCH64_RELATIVE 1027 + +/* The following are used with relocations */ +#define ELF64_R_TYPE(i) ((i) & 0xffffffff) + +#endif /* _ELF_H_ */ From patchwork Tue May 30 16:09:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260672 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D0D9C77B7A for ; Tue, 30 May 2023 16:11:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233350AbjE3QLW (ORCPT ); Tue, 30 May 2023 12:11:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57496 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233349AbjE3QLT (ORCPT ); Tue, 30 May 2023 12:11:19 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E364D192 for ; Tue, 30 May 2023 09:10:51 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 31C751BCA; Tue, 30 May 2023 09:11:12 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DC1C93F663; Tue, 30 May 2023 09:10:25 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 28/32] arm64: Add support for efi in Makefile Date: Tue, 30 May 2023 17:09:20 +0100 Message-Id: <20230530160924.82158-29-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Users can now build kvm-unit-tests as efi apps by supplying an extra argument when invoking configure: $> ./configure --enable-efi This patch is based on an earlier version by Andrew Jones Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller Reviewed-by: Shaoqin Huang --- configure | 17 +++++++++++++---- arm/Makefile.arm | 6 ++++++ arm/Makefile.arm64 | 18 ++++++++++++++---- arm/Makefile.common | 45 ++++++++++++++++++++++++++++++++++----------- 4 files changed, 67 insertions(+), 19 deletions(-) diff --git a/configure b/configure index c36fd290..b665f7d5 100755 --- a/configure +++ b/configure @@ -86,7 +86,7 @@ usage() { pl011,mmio32,ADDR Specify a PL011 compatible UART at address ADDR. Supported register stride is 32 bit only. - --[enable|disable]-efi Boot and run from UEFI (disabled by default, x86_64 only) + --[enable|disable]-efi Boot and run from UEFI (disabled by default, x86_64 and arm64 only) --[enable|disable]-werror Select whether to compile with the -Werror compiler flag EOF @@ -208,14 +208,19 @@ else fi fi -if [ "$efi" ] && [ "$arch" != "x86_64" ]; then +if [ "$efi" ] && [ "$arch" != "x86_64" ] && [ "$arch" != "arm64" ]; then echo "--[enable|disable]-efi is not supported for $arch" usage fi if [ -z "$page_size" ]; then - [ "$arch" = "arm64" ] && page_size="65536" - [ "$arch" = "arm" ] && page_size="4096" + if [ "$efi" = 'y' ] && [ "$arch" = "arm64" ]; then + page_size="4096" + elif [ "$arch" = "arm64" ]; then + page_size="65536" + elif [ "$arch" = "arm" ]; then + page_size="4096" + fi else if [ "$arch" != "arm64" ]; then echo "--page-size is not supported for $arch" @@ -230,6 +235,10 @@ else echo "arm64 doesn't support page size of $page_size" usage fi + if [ "$efi" = 'y' ] && [ "$page_size" != "4096" ]; then + echo "efi must use 4K pages" + exit 1 + fi fi [ -z "$processor" ] && processor="$arch" diff --git a/arm/Makefile.arm b/arm/Makefile.arm index 01fd4c7b..2ce00f52 100644 --- a/arm/Makefile.arm +++ b/arm/Makefile.arm @@ -7,6 +7,10 @@ bits = 32 ldarch = elf32-littlearm machine = -marm -mfpu=vfp +ifeq ($(CONFIG_EFI),y) +$(error Cannot build arm32 tests as EFI apps) +endif + # stack.o relies on frame pointers. KEEP_FRAME_POINTER := y @@ -32,6 +36,8 @@ cflatobjs += lib/arm/stack.o cflatobjs += lib/ldiv32.o cflatobjs += lib/arm/ldivmod.o +exe = flat + # arm specific tests tests = diff --git a/arm/Makefile.arm64 b/arm/Makefile.arm64 index 6dff6cad..eada7f9a 100644 --- a/arm/Makefile.arm64 +++ b/arm/Makefile.arm64 @@ -31,11 +31,21 @@ endif OBJDIRS += lib/arm64 +ifeq ($(CONFIG_EFI),y) +# avoid jump tables before all relocations have been processed +arm/efi/reloc_aarch64.o: CFLAGS += -fno-jump-tables +cflatobjs += arm/efi/reloc_aarch64.o + +exe = efi +else +exe = flat +endif + # arm64 specific tests -tests = $(TEST_DIR)/timer.flat -tests += $(TEST_DIR)/micro-bench.flat -tests += $(TEST_DIR)/cache.flat -tests += $(TEST_DIR)/debug.flat +tests = $(TEST_DIR)/timer.$(exe) +tests += $(TEST_DIR)/micro-bench.$(exe) +tests += $(TEST_DIR)/cache.$(exe) +tests += $(TEST_DIR)/debug.$(exe) include $(SRCDIR)/$(TEST_DIR)/Makefile.common diff --git a/arm/Makefile.common b/arm/Makefile.common index 647b0fb1..a133309d 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -4,14 +4,14 @@ # Authors: Andrew Jones # -tests-common = $(TEST_DIR)/selftest.flat -tests-common += $(TEST_DIR)/spinlock-test.flat -tests-common += $(TEST_DIR)/pci-test.flat -tests-common += $(TEST_DIR)/pmu.flat -tests-common += $(TEST_DIR)/gic.flat -tests-common += $(TEST_DIR)/psci.flat -tests-common += $(TEST_DIR)/sieve.flat -tests-common += $(TEST_DIR)/pl031.flat +tests-common = $(TEST_DIR)/selftest.$(exe) +tests-common += $(TEST_DIR)/spinlock-test.$(exe) +tests-common += $(TEST_DIR)/pci-test.$(exe) +tests-common += $(TEST_DIR)/pmu.$(exe) +tests-common += $(TEST_DIR)/gic.$(exe) +tests-common += $(TEST_DIR)/psci.$(exe) +tests-common += $(TEST_DIR)/sieve.$(exe) +tests-common += $(TEST_DIR)/pl031.$(exe) tests-all = $(tests-common) $(tests) all: directories $(tests-all) @@ -54,6 +54,9 @@ cflatobjs += lib/arm/smp.o cflatobjs += lib/arm/delay.o cflatobjs += lib/arm/gic.o lib/arm/gic-v2.o lib/arm/gic-v3.o cflatobjs += lib/arm/timer.o +ifeq ($(CONFIG_EFI),y) +cflatobjs += lib/efi.o +endif OBJDIRS += lib/arm @@ -61,6 +64,25 @@ libeabi = lib/arm/libeabi.a eabiobjs = lib/arm/eabi_compat.o FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libeabi) + +ifeq ($(CONFIG_EFI),y) +%.so: EFI_LDFLAGS += -defsym=EFI_SUBSYSTEM=0xa --no-undefined +%.so: %.o $(FLATLIBS) $(SRCDIR)/arm/efi/elf_aarch64_efi.lds $(cstart.o) + $(CC) $(CFLAGS) -c -o $(@:.so=.aux.o) $(SRCDIR)/lib/auxinfo.c \ + -DPROGNAME=\"$(@:.so=.efi)\" -DAUXFLAGS=$(AUXFLAGS) + $(LD) $(EFI_LDFLAGS) -o $@ -T $(SRCDIR)/arm/efi/elf_aarch64_efi.lds \ + $(filter %.o, $^) $(FLATLIBS) $(@:.so=.aux.o) \ + $(EFI_LIBS) + $(RM) $(@:.so=.aux.o) + +%.efi: %.so + $(call arch_elf_check, $^) + $(OBJCOPY) \ + -j .text -j .sdata -j .data -j .dynamic -j .dynsym \ + -j .rel -j .rela -j .rel.* -j .rela.* -j .rel* -j .rela* \ + -j .reloc \ + -O binary $^ $@ +else %.elf: LDFLAGS = -nostdlib $(arch_LDFLAGS) %.elf: %.o $(FLATLIBS) $(SRCDIR)/arm/flat.lds $(cstart.o) $(CC) $(CFLAGS) -c -o $(@:.elf=.aux.o) $(SRCDIR)/lib/auxinfo.c \ @@ -74,13 +96,14 @@ FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libeabi) $(call arch_elf_check, $^) $(OBJCOPY) -O binary $^ $@ @chmod a-x $@ +endif $(libeabi): $(eabiobjs) $(AR) rcs $@ $^ arm_clean: asm_offsets_clean - $(RM) $(TEST_DIR)/*.{o,flat,elf} $(libeabi) $(eabiobjs) \ - $(TEST_DIR)/.*.d lib/arm/.*.d + $(RM) $(TEST_DIR)/*.{o,flat,elf,so,efi} $(libeabi) $(eabiobjs) \ + $(TEST_DIR)/.*.d $(TEST_DIR)/efi/.*.d lib/arm/.*.d generated-files = $(asm-offsets) -$(tests-all:.flat=.o) $(cstart.o) $(cflatobjs): $(generated-files) +$(tests-all:.$(exe)=.o) $(cstart.o) $(cflatobjs): $(generated-files) From patchwork Tue May 30 16:09:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260673 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBB3AC7EE2E for ; Tue, 30 May 2023 16:11:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233353AbjE3QLX (ORCPT ); Tue, 30 May 2023 12:11:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233351AbjE3QLU (ORCPT ); Tue, 30 May 2023 12:11:20 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 03653193 for ; Tue, 30 May 2023 09:10:51 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 629AD175A; Tue, 30 May 2023 09:11:13 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 18C313F663; Tue, 30 May 2023 09:10:26 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Alexandru Elisei , pbonzini@redhat.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 29/32] lib: arm: Print test exit status Date: Tue, 30 May 2023 17:09:21 +0100 Message-Id: <20230530160924.82158-30-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Alexandru Elisei The arm tests can be run under kvmtool, which doesn't emulate a chr-testdev device. Print the test exit status to make it possible for the runner scripts to pick it up when they have support for it. Signed-off-by: Alexandru Elisei Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones Reviewed-by: Shaoqin Huang --- lib/arm/io.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/arm/io.c b/lib/arm/io.c index 19f93490..c15e57c4 100644 --- a/lib/arm/io.c +++ b/lib/arm/io.c @@ -149,6 +149,13 @@ extern void halt(int code); void exit(int code) { + /* + * Print the test return code in the following format which is + * consistent with powerpc and s390x. The runner can pick it + * up when chr-testdev is not present. + */ + printf("\nEXIT: STATUS=%d\n", ((code) << 1) | 1); + chr_testdev_exit(code); psci_system_off(); halt(code); From patchwork Tue May 30 16:09:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260680 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB63DC7EE23 for ; Tue, 30 May 2023 16:11:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233424AbjE3QLr (ORCPT ); Tue, 30 May 2023 12:11:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233381AbjE3QLk (ORCPT ); Tue, 30 May 2023 12:11:40 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D12A6137 for ; Tue, 30 May 2023 09:11:17 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 933731BCB; Tue, 30 May 2023 09:11:14 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 497013F663; Tue, 30 May 2023 09:10:28 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 30/32] arm64: debug: Make inline assembly symbols global Date: Tue, 30 May 2023 17:09:22 +0100 Message-Id: <20230530160924.82158-31-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org efi binaries need to be compiled with fPIC. To allow symbols defined in inline assembly to be correctly resolved, this patch makes them globally visibile to the linker. Signed-off-by: Nikos Nikoleris --- arm/debug.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/arm/debug.c b/arm/debug.c index b3e9749c..572786a9 100644 --- a/arm/debug.c +++ b/arm/debug.c @@ -292,11 +292,14 @@ static noinline void test_hw_bp(bool migrate) hw_bp_idx = 0; /* Trap on up to 16 debug exception unmask instructions. */ - asm volatile("hw_bp0:\n" - "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n" - "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n" - "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n" - "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n"); + asm volatile( + ".globl hw_bp0\n" + "hw_bp0:\n" + "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n" + "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n" + "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n" + "msr daifclr, #8; msr daifclr, #8; msr daifclr, #8; msr daifclr, #8\n" + ); for (i = 0, addr = (uint64_t)&hw_bp0; i < num_bp; i++, addr += 4) report(hw_bp_addr[i] == addr, "hw breakpoint: %d", i); @@ -367,11 +370,14 @@ static noinline void test_ss(bool migrate) asm volatile("msr daifclr, #8"); - asm volatile("ss_start:\n" + asm volatile( + ".globl ss_start\n" + "ss_start:\n" "mrs x0, esr_el1\n" "add x0, x0, #1\n" "msr daifset, #8\n" - : : : "x0"); + : : : "x0" + ); report(ss_addr[0] == (uint64_t)&ss_start, "single step"); } From patchwork Tue May 30 16:09:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260674 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E03C2C77B7A for ; Tue, 30 May 2023 16:11:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233365AbjE3QL0 (ORCPT ); Tue, 30 May 2023 12:11:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233318AbjE3QLY (ORCPT ); Tue, 30 May 2023 12:11:24 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DC83D1AD for ; Tue, 30 May 2023 09:10:55 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C40BB1BD0; Tue, 30 May 2023 09:11:15 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7A4743F663; Tue, 30 May 2023 09:10:29 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 31/32] arm64: Add an efi/run script Date: Tue, 30 May 2023 17:09:23 +0100 Message-Id: <20230530160924.82158-32-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds a efi/run script inspired by the one in x86. This script will setup a folder with the test compiled as an EFI app and a startup.nsh script. The script launches QEMU providing an image with EDKII and the path to the folder with the test which is executed automatically. For example: $> ./arm/efi/run ./arm/selftest.efi -append "setup smp=2 mem=256" -smp 2 -m 256 Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller Reviewed-by: Shaoqin Huang --- scripts/runtime.bash | 13 +++++++--- arm/efi/run | 61 ++++++++++++++++++++++++++++++++++++++++++++ arm/run | 14 +++++++--- arm/Makefile.common | 1 + arm/dummy.c | 12 +++++++++ 5 files changed, 94 insertions(+), 7 deletions(-) create mode 100755 arm/efi/run create mode 100644 arm/dummy.c diff --git a/scripts/runtime.bash b/scripts/runtime.bash index 07b62b0e..785a7b62 100644 --- a/scripts/runtime.bash +++ b/scripts/runtime.bash @@ -130,11 +130,18 @@ function run() done fi - last_line=$(premature_failure > >(tail -1)) && { + log=$(premature_failure) && { skip=true - if [ "${CONFIG_EFI}" == "y" ] && [[ "${last_line}" =~ "Dummy Hello World!" ]]; then - skip=false + if [ "${CONFIG_EFI}" == "y" ]; then + if [ "$ARCH" == "x86_64" ] && + [[ "$(tail -1 <<<"$log")" =~ "Dummy Hello World!" ]]; then + skip=false + elif [ "$ARCH" == "arm64" ] && + [[ "$(tail -2 <<<"$log" | head -1)" =~ "Dummy Hello World!" ]]; then + skip=false + fi fi + if [ ${skip} == true ]; then print_result "SKIP" $testname "" "$last_line" return 77 diff --git a/arm/efi/run b/arm/efi/run new file mode 100755 index 00000000..dfff717a --- /dev/null +++ b/arm/efi/run @@ -0,0 +1,61 @@ +#!/bin/bash + +set -e + +if [ $# -eq 0 ]; then + echo "Usage $0 TEST_CASE [QEMU_ARGS]" + exit 2 +fi + +if [ ! -f config.mak ]; then + echo "run './configure --enable-efi && make' first. See ./configure -h" + exit 2 +fi +source config.mak +source scripts/arch-run.bash +source scripts/common.bash + +: "${EFI_SRC:=$(realpath "$(dirname "$0")/../")}" +: "${EFI_UEFI:=/usr/share/qemu-efi-aarch64/QEMU_EFI.fd}" +: "${EFI_TEST:=efi-tests}" +: "${EFI_CASE:=$(basename $1 .efi)}" + +if [ ! -f "$EFI_UEFI" ]; then + echo "UEFI firmware not found: $EFI_UEFI" + echo "Please install the UEFI firmware to this path" + echo "Or specify the correct path with the env variable EFI_UEFI" + exit 2 +fi + +# Remove the TEST_CASE from $@ +shift 1 + +# Fish out the arguments for the test, they should be the next string +# after the "-append" option +qemu_args=() +cmd_args=() +while (( "$#" )); do + if [ "$1" = "-append" ]; then + cmd_args=$2 + shift 2 + else + qemu_args+=("$1") + shift 1 + fi +done + +if [ "$EFI_CASE" = "_NO_FILE_4Uhere_" ]; then + EFI_CASE=dummy +fi + +: "${EFI_CASE_DIR:="$EFI_TEST/$EFI_CASE"}" +mkdir -p "$EFI_CASE_DIR" + +cp "$EFI_SRC/$EFI_CASE.efi" "$EFI_TEST/$EFI_CASE/" +echo "@echo -off" > "$EFI_TEST/$EFI_CASE/startup.nsh" +echo "$EFI_CASE.efi" "${cmd_args[@]}" >> "$EFI_TEST/$EFI_CASE/startup.nsh" + +EFI_RUN=y $TEST_DIR/run \ + -bios "$EFI_UEFI" \ + -drive file.dir="$EFI_TEST/$EFI_CASE/",file.driver=vvfat,file.rw=on,format=raw,if=virtio \ + "${qemu_args[@]}" diff --git a/arm/run b/arm/run index c6f25b8c..de520c11 100755 --- a/arm/run +++ b/arm/run @@ -64,8 +64,10 @@ if ! $qemu $M -chardev '?' | grep -q testdev; then exit 2 fi -chr_testdev='-device virtio-serial-device' -chr_testdev+=' -device virtconsole,chardev=ctd -chardev testdev,id=ctd' +if [ "$EFI_RUN" != "y" ]; then + chr_testdev='-device virtio-serial-device' + chr_testdev+=' -device virtconsole,chardev=ctd -chardev testdev,id=ctd' +fi pci_testdev= if $qemu $M -device '?' | grep -q pci-testdev; then @@ -74,7 +76,11 @@ fi A="-accel $ACCEL" command="$qemu -nodefaults $M $A -cpu $processor $chr_testdev $pci_testdev" -command+=" -display none -serial stdio -kernel" +command+=" -display none -serial stdio" command="$(migration_cmd) $(timeout_cmd) $command" -run_qemu $command "$@" +if [ "$EFI_RUN" = "y" ]; then + ENVIRON_DEFAULT=n run_qemu_status $command "$@" +else + run_qemu $command -kernel "$@" +fi diff --git a/arm/Makefile.common b/arm/Makefile.common index a133309d..d60cf8cd 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -12,6 +12,7 @@ tests-common += $(TEST_DIR)/gic.$(exe) tests-common += $(TEST_DIR)/psci.$(exe) tests-common += $(TEST_DIR)/sieve.$(exe) tests-common += $(TEST_DIR)/pl031.$(exe) +tests-common += $(TEST_DIR)/dummy.$(exe) tests-all = $(tests-common) $(tests) all: directories $(tests-all) diff --git a/arm/dummy.c b/arm/dummy.c new file mode 100644 index 00000000..7033bb7c --- /dev/null +++ b/arm/dummy.c @@ -0,0 +1,12 @@ +#include "libcflat.h" + +int main(int argc, char **argv) +{ + /* + * scripts/runtime.bash uses this test as a canary to determine if the + * basic setup is functional. Print a magic string to let runtime.bash + * know that all is well. + */ + printf("Dummy Hello World!"); + return 0; +} From patchwork Tue May 30 16:09:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13260681 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0336C7EE23 for ; Tue, 30 May 2023 16:11:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233383AbjE3QLy (ORCPT ); Tue, 30 May 2023 12:11:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233421AbjE3QLr (ORCPT ); Tue, 30 May 2023 12:11:47 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5C3FD1B5 for ; Tue, 30 May 2023 09:11:31 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 006711BF3; Tue, 30 May 2023 09:11:17 -0700 (PDT) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AADB63F663; Tue, 30 May 2023 09:10:30 -0700 (PDT) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, shahuang@redhat.com Subject: [kvm-unit-tests PATCH v6 32/32] arm64: Use the provided fdt when booting through EFI Date: Tue, 30 May 2023 17:09:24 +0100 Message-Id: <20230530160924.82158-33-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230530160924.82158-1-nikos.nikoleris@arm.com> References: <20230530160924.82158-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This patch uses the fdt pointer provided through efi_bootinfo_t for tests that run as EFI apps. As in Linux, we give priority to the fdt. First, we check if the pointer to the fdt is set and only if it isn't we fallback to using the ACPI. In addition, this patches changes the efi run script to generate and use a fdt unless the user has set the enviroment variable EFI_USE_ACPI to 'y'. As a result: $> ./arm/efi/run ./arm/selftest.efi -append "setup smp=2 mem=256" -smp 2 -m 256 will use an fdt, where as $> EFI_USE_ACPI=y ./arm/efi/run ./arm/selftest.efi -append "setup smp=2 mem=256" -smp 2 -m 256 will run relying on ACPI. Signed-off-by: Nikos Nikoleris --- arm/efi/run | 9 +++++++++ lib/arm/setup.c | 23 +++++++++++++++++++---- 2 files changed, 28 insertions(+), 4 deletions(-) diff --git a/arm/efi/run b/arm/efi/run index dfff717a..c61da311 100755 --- a/arm/efi/run +++ b/arm/efi/run @@ -19,6 +19,9 @@ source scripts/common.bash : "${EFI_UEFI:=/usr/share/qemu-efi-aarch64/QEMU_EFI.fd}" : "${EFI_TEST:=efi-tests}" : "${EFI_CASE:=$(basename $1 .efi)}" +: "${EFI_VAR_GUID:=97ef3e03-7329-4a6a-b9ba-6c1fdcc5f823}" + +[ "$EFI_USE_ACPI" = "y" ] || EFI_USE_DTB=y if [ ! -f "$EFI_UEFI" ]; then echo "UEFI firmware not found: $EFI_UEFI" @@ -53,6 +56,12 @@ mkdir -p "$EFI_CASE_DIR" cp "$EFI_SRC/$EFI_CASE.efi" "$EFI_TEST/$EFI_CASE/" echo "@echo -off" > "$EFI_TEST/$EFI_CASE/startup.nsh" +if [ "$EFI_USE_DTB" = "y" ]; then + qemu_args+=(-machine acpi=off) + FDT_BASENAME="dtb" + $(EFI_RUN=y $TEST_DIR/run -machine dumpdtb="$EFI_TEST/$EFI_CASE/$FDT_BASENAME" "${qemu_args[@]}") + echo "setvar fdtfile -guid $EFI_VAR_GUID -rt =L\"$FDT_BASENAME\"" >> "$EFI_TEST/$EFI_CASE/startup.nsh" +fi echo "$EFI_CASE.efi" "${cmd_args[@]}" >> "$EFI_TEST/$EFI_CASE/startup.nsh" EFI_RUN=y $TEST_DIR/run \ diff --git a/lib/arm/setup.c b/lib/arm/setup.c index c4f495a9..0fa21b7e 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -329,6 +329,8 @@ static efi_status_t efi_mem_init(efi_bootinfo_t *efi_bootinfo) struct mem_region r; uintptr_t text = (uintptr_t)&_text, etext = __ALIGN((uintptr_t)&_etext, 4096); uintptr_t data = (uintptr_t)&_data, edata = __ALIGN((uintptr_t)&_edata, 4096); + const void *fdt = efi_bootinfo->fdt; + int fdt_size, ret; /* * Record the largest free EFI_CONVENTIONAL_MEMORY region @@ -393,6 +395,17 @@ static efi_status_t efi_mem_init(efi_bootinfo_t *efi_bootinfo) } mem_region_add(&r); } + if (fdt) { + /* Move the FDT to the base of free memory */ + fdt_size = fdt_totalsize(fdt); + ret = fdt_move(fdt, (void *)free_mem_start, fdt_size); + assert(ret == 0); + ret = dt_init((void *)free_mem_start); + assert(ret == 0); + free_mem_start += ALIGN(fdt_size, EFI_PAGE_SIZE); + free_mem_pages -= ALIGN(fdt_size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT; + } + __phys_end &= PHYS_MASK; asm_mmu_disable(); @@ -440,10 +453,12 @@ efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo) return status; } - status = setup_rsdp(efi_bootinfo); - if (status != EFI_SUCCESS) { - printf("Cannot find RSDP in EFI system table\n"); - return status; + if (!dt_available()) { + status = setup_rsdp(efi_bootinfo); + if (status != EFI_SUCCESS) { + printf("Cannot find RSDP in EFI system table\n"); + return status; + } } psci_set_conduit();