From patchwork Tue May 17 14:43:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 9113411 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0F6AE9F30C for ; Tue, 17 May 2016 14:58:16 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2F852202F0 for ; Tue, 17 May 2016 14:58:15 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 13CBB2012D for ; Tue, 17 May 2016 14:58:14 +0000 (UTC) Received: from localhost ([::1]:50801 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2gRp-0007Dh-C9 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 17 May 2016 10:58:13 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56317) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2gEH-0001Ax-Er for qemu-devel@nongnu.org; Tue, 17 May 2016 10:44:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b2gEC-0006Tb-B8 for qemu-devel@nongnu.org; Tue, 17 May 2016 10:44:13 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33847) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2gEC-0006TU-2X for qemu-devel@nongnu.org; Tue, 17 May 2016 10:44:08 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A09A063305 for ; Tue, 17 May 2016 14:44:07 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq.redhat.com (dell-r430-03.lab.eng.brq.redhat.com [10.34.112.60]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u4HEhRtH006153; Tue, 17 May 2016 10:44:05 -0400 From: Igor Mammedov To: qemu-devel@nongnu.org Date: Tue, 17 May 2016 16:43:14 +0200 Message-Id: <1463496205-251412-23-git-send-email-imammedo@redhat.com> In-Reply-To: <1463496205-251412-1-git-send-email-imammedo@redhat.com> References: <1463496205-251412-1-git-send-email-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Tue, 17 May 2016 14:44:07 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 22/33] pc: acpi: introduce AcpiDeviceIfClass.madt_cpu hook X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: drjones@redhat.com, ehabkost@redhat.com, rkrcmar@redhat.com, mst@redhat.com, armbru@redhat.com, marcel@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add madt_cpu callback to AcpiDeviceIfClass and use it for generating LAPIC MADT entries for CPUs for x86 target. Later it will be used for generating x2APIC entries in case of more than 255 CPUs and also would be reused by ARM target when ACPI CPU hotplug is introduced there. Signed-off-by: Igor Mammedov --- hw/acpi/piix4.c | 1 + hw/i386/acpi-build.c | 45 +++++++++++++++++++++--------------- hw/isa/lpc_ich9.c | 1 + include/hw/acpi/acpi_dev_interface.h | 7 ++++++ include/hw/i386/pc.h | 5 ++++ stubs/Makefile.objs | 1 + stubs/pc_madt_cpu_entry.c | 7 ++++++ 7 files changed, 49 insertions(+), 18 deletions(-) create mode 100644 stubs/pc_madt_cpu_entry.c diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 05ce725..ee83d10 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -679,6 +679,7 @@ static void piix4_pm_class_init(ObjectClass *klass, void *data) hc->unplug = piix4_device_unplug_cb; adevc->ospm_status = piix4_ospm_status; adevc->send_event = piix4_send_gpe; + adevc->madt_cpu = pc_madt_cpu_entry; } static const TypeInfo piix4_pm_info = { diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 768918f..af939bc 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -331,12 +331,38 @@ build_fadt(GArray *table_data, GArray *linker, AcpiPmInfo *pm, (void *)fadt, "FACP", sizeof(*fadt), 1, oem_id, oem_table_id); } +void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid, + CPUArchIdList *apic_ids, GArray *entry) +{ + int apic_id; + AcpiMadtProcessorApic *apic = acpi_data_push(entry, sizeof *apic); + + apic_id = apic_ids->cpus[uid].arch_id; + apic->type = ACPI_APIC_PROCESSOR; + apic->length = sizeof(*apic); + apic->processor_id = uid; + apic->local_apic_id = apic_id; + if (apic_ids->cpus[uid].cpu != NULL) { + apic->flags = cpu_to_le32(1); + } else { + /* ACPI spec says that LAPIC entry for non present + * CPU may be omitted from MADT or it must be marked + * as disabled. However omitting non present CPU from + * MADT breaks hotplug on linux. So possible CPUs + * should be put in MADT but kept disabled. + */ + apic->flags = cpu_to_le32(0); + } +} + static void build_madt(GArray *table_data, GArray *linker, PCMachineState *pcms) { MachineClass *mc = MACHINE_GET_CLASS(pcms); CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(MACHINE(pcms)); int madt_start = table_data->len; + AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(pcms->acpi_dev); + AcpiDeviceIf *adev = ACPI_DEVICE_IF(pcms->acpi_dev); AcpiMultipleApicTable *madt; AcpiMadtIoApic *io_apic; @@ -349,24 +375,7 @@ build_madt(GArray *table_data, GArray *linker, PCMachineState *pcms) madt->flags = cpu_to_le32(1); for (i = 0; i < apic_ids->len; i++) { - AcpiMadtProcessorApic *apic = acpi_data_push(table_data, sizeof *apic); - int apic_id = apic_ids->cpus[i].arch_id; - - apic->type = ACPI_APIC_PROCESSOR; - apic->length = sizeof(*apic); - apic->processor_id = i; - apic->local_apic_id = apic_id; - if (apic_ids->cpus[i].cpu != NULL) { - apic->flags = cpu_to_le32(1); - } else { - /* ACPI spec says that LAPIC entry for non present - * CPU may be omitted from MADT or it must be marked - * as disabled. However omitting non present CPU from - * MADT breaks hotplug on linux. So possible CPUs - * should be put in MADT but kept disabled. - */ - apic->flags = cpu_to_le32(0); - } + adevc->madt_cpu(adev, i, apic_ids, table_data); } g_free(apic_ids); diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c index 86d4547..0aaaad3 100644 --- a/hw/isa/lpc_ich9.c +++ b/hw/isa/lpc_ich9.c @@ -713,6 +713,7 @@ static void ich9_lpc_class_init(ObjectClass *klass, void *data) hc->unplug = ich9_pm_device_unplug_cb; adevc->ospm_status = ich9_pm_ospm_status; adevc->send_event = ich9_send_gpe; + adevc->madt_cpu = pc_madt_cpu_entry; } static const TypeInfo ich9_lpc_info = { diff --git a/include/hw/acpi/acpi_dev_interface.h b/include/hw/acpi/acpi_dev_interface.h index fdfc163..61b5505 100644 --- a/include/hw/acpi/acpi_dev_interface.h +++ b/include/hw/acpi/acpi_dev_interface.h @@ -3,6 +3,7 @@ #include "qom/object.h" #include "qapi-types.h" +#include "hw/boards.h" /* These values are part of guest ABI, and can not be changed */ typedef enum { @@ -44,6 +45,10 @@ typedef struct AcpiDeviceIf { * ospm_status: returns status of ACPI device objects, reported * via _OST method if device supports it. * send_event: inject a specified event into guest + * madt_cpu: fills @entry with Interrupt Controller Structure + * for CPU indexed by @uid in @apic_ids array, + * returned structure types are: + * 0 - Local APIC, 9 - Local x2APIC, 0xB - GICC * * Interface is designed for providing unified interface * to generic ACPI functionality that could be used without @@ -57,5 +62,7 @@ typedef struct AcpiDeviceIfClass { /* */ void (*ospm_status)(AcpiDeviceIf *adev, ACPIOSTInfoList ***list); void (*send_event)(AcpiDeviceIf *adev, AcpiEventStatusBits ev); + void (*madt_cpu)(AcpiDeviceIf *adev, int uid, + CPUArchIdList *apic_ids, GArray *entry); } AcpiDeviceIfClass; #endif diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index f1e40ae..8d2dc19 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -17,6 +17,7 @@ #include "hw/compat.h" #include "hw/mem/pc-dimm.h" #include "hw/mem/nvdimm.h" +#include "hw/acpi/acpi_dev_interface.h" #define HPET_INTCAP "hpet-intcap" @@ -345,6 +346,10 @@ void pc_system_firmware_init(MemoryRegion *rom_memory, /* pvpanic.c */ uint16_t pvpanic_port(void); +/* acpi-build.c */ +void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid, + CPUArchIdList *apic_ids, GArray *entry); + /* e820 types */ #define E820_RAM 1 #define E820_RESERVED 2 diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs index 4b258a6..e8ff38d 100644 --- a/stubs/Makefile.objs +++ b/stubs/Makefile.objs @@ -41,3 +41,4 @@ stub-obj-y += target-monitor-defs.o stub-obj-y += target-get-monitor-def.o stub-obj-y += vhost.o stub-obj-y += iohandler.o +stub-obj-y += pc_madt_cpu_entry.o diff --git a/stubs/pc_madt_cpu_entry.c b/stubs/pc_madt_cpu_entry.c new file mode 100644 index 0000000..427e772 --- /dev/null +++ b/stubs/pc_madt_cpu_entry.c @@ -0,0 +1,7 @@ +#include "qemu/osdep.h" +#include "hw/i386/pc.h" + +void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid, + CPUArchIdList *apic_ids, GArray *entry) +{ +}