From patchwork Fri Nov 22 09:11:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 13882930 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4D348E65D35 for ; Fri, 22 Nov 2024 09:14:52 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tEPi4-0002J9-P1; Fri, 22 Nov 2024 04:12:17 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tEPho-0002CK-7M; Fri, 22 Nov 2024 04:12:00 -0500 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tEPhl-0000un-4C; Fri, 22 Nov 2024 04:11:59 -0500 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 9E7B25C59E3; Fri, 22 Nov 2024 09:11:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 813AEC4CEDC; Fri, 22 Nov 2024 09:11:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732266708; bh=FYQWzY1NWPvyS9B1hBT0JbqR6VKHzPMfLmHBfI6DjaA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FBdxtJFqvlFlqPYVFZTaeeWLK4y+Ktkj/mZtNoB683+AARAh9MW3/5vjnX4SDjrsW j635/QrNNbcRLCFU3e+kQ2F/MYYSrYr/jLfdABLVPIRPiEAObLUW/00LNbs7oJC4uS rDKBLbPYxyBedUXaMYyIIXrPU0i78C/cklMWjm9TWW2TWOhYVRdQCdf7ibAycMfPK9 mRjS2Jng5BPKnJxdeEDdbyy5Sx54yzDTa2oM+vzw2Ac+mDtFCTI8e9yqnpASeg7roU DQNR+XEtfy8htnHqUyN57EXDYZtoC22G8+CIvWqqO4/PZEctMTv7zuMU/WizknUk27 B1CVJClA4tqQg== Received: from mchehab by mail.kernel.org with local (Exim 4.98) (envelope-from ) id 1tEPhX-00000006l3t-0ddk; Fri, 22 Nov 2024 10:11:43 +0100 From: Mauro Carvalho Chehab To: Igor Mammedov Cc: Jonathan Cameron , Shiju Jose , Mauro Carvalho Chehab , "Michael S. Tsirkin" , Ani Sinha , Dongjiu Geng , linux-kernel@vger.kernel.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v4 08/15] acpi/ghes: make the GHES record generation more generic Date: Fri, 22 Nov 2024 10:11:25 +0100 Message-ID: X-Mailer: git-send-email 2.47.0 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2604:1380:4641:c500::1; envelope-from=mchehab+huawei@kernel.org; helo=dfw.source.kernel.org X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.14, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Split the code into separate functions to allow using the common CPER filling code by different error sources. The generic code was moved to ghes_record_cper_errors(), and ghes_gen_err_data_uncorrectable_recoverable() now contains only a logic to fill the Generic Error Data part of the record, as described at: ACPI 6.2: 18.3.2.7.1 Generic Error Data The remaining code to generate a memory error now belongs to acpi_ghes_record_errors() function. A further patch will give it a better name. Signed-off-by: Mauro Carvalho Chehab --- hw/acpi/ghes.c | 131 ++++++++++++++++++++++++----------------- include/hw/acpi/ghes.h | 3 + 2 files changed, 79 insertions(+), 55 deletions(-) diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c index edc74c38bf8a..a96856d5110b 100644 --- a/hw/acpi/ghes.c +++ b/hw/acpi/ghes.c @@ -181,51 +181,24 @@ static void acpi_ghes_build_append_mem_cper(GArray *table, build_append_int_noprefix(table, 0, 7); } -static int acpi_ghes_record_mem_error(uint64_t error_block_address, - uint64_t error_physical_addr) +static void +ghes_gen_err_data_uncorrectable_recoverable(GArray *block, + const uint8_t *section_type, + int data_length) { - GArray *block; - - /* Memory Error Section Type */ - const uint8_t uefi_cper_mem_sec[] = - UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \ - 0xED, 0x7C, 0x83, 0xB1); - /* invalid fru id: ACPI 4.0: 17.3.2.6.1 Generic Error Data, * Table 17-13 Generic Error Data Entry */ QemuUUID fru_id = {}; - uint32_t data_length; - - block = g_array_new(false, true /* clear */, 1); - - /* This is the length if adding a new generic error data entry*/ - data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH; - /* - * It should not run out of the preallocated memory if adding a new generic - * error data entry - */ - assert((data_length + ACPI_GHES_GESB_SIZE) <= - ACPI_GHES_MAX_RAW_DATA_LENGTH); /* Build the new generic error status block header */ acpi_ghes_generic_error_status(block, ACPI_GEBS_UNCORRECTABLE, 0, 0, data_length, ACPI_CPER_SEV_RECOVERABLE); /* Build this new generic error data entry header */ - acpi_ghes_generic_error_data(block, uefi_cper_mem_sec, + acpi_ghes_generic_error_data(block, section_type, ACPI_CPER_SEV_RECOVERABLE, 0, 0, ACPI_GHES_MEM_CPER_LENGTH, fru_id, 0); - - /* Build the memory section CPER for above new generic error data entry */ - acpi_ghes_build_append_mem_cper(block, error_physical_addr); - - /* Write the generic error data entry into guest memory */ - cpu_physical_memory_write(error_block_address, block->data, block->len); - - g_array_free(block, true); - - return 0; } /* @@ -383,15 +356,18 @@ void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s, ags->present = true; } -int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address) +void ghes_record_cper_errors(const void *cper, size_t len, + uint16_t source_id, Error **errp) { uint64_t error_block_addr, read_ack_register_addr, read_ack_register = 0; uint64_t start_addr; - bool ret = -1; AcpiGedState *acpi_ged_state; AcpiGhesState *ags; - assert(source_id < ACPI_GHES_ERROR_SOURCE_COUNT); + if (len > ACPI_GHES_MAX_RAW_DATA_LENGTH) { + error_setg(errp, "GHES CPER record is too big: %ld", len); + return; + } acpi_ged_state = ACPI_GED(object_resolve_path_type("", TYPE_ACPI_GED, NULL)); @@ -400,16 +376,16 @@ int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address) start_addr = le64_to_cpu(ags->ghes_addr_le); - if (!physical_address) { - return -1; - } - start_addr += source_id * sizeof(uint64_t); cpu_physical_memory_read(start_addr, &error_block_addr, sizeof(error_block_addr)); error_block_addr = le64_to_cpu(error_block_addr); + if (!error_block_addr) { + error_setg(errp, "can not find Generic Error Status Block"); + return; + } read_ack_register_addr = start_addr + ACPI_GHES_ERROR_SOURCE_COUNT * sizeof(uint64_t); @@ -419,24 +395,69 @@ int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address) /* zero means OSPM does not acknowledge the error */ if (!read_ack_register) { - error_report("OSPM does not acknowledge previous error," - " so can not record CPER for current error anymore"); - } else if (error_block_addr) { - read_ack_register = cpu_to_le64(0); - /* - * Clear the Read Ack Register, OSPM will write it to 1 when - * it acknowledges this error. - */ - cpu_physical_memory_write(read_ack_register_addr, - &read_ack_register, sizeof(uint64_t)); - - ret = acpi_ghes_record_mem_error(error_block_addr, - physical_address); - } else { - error_report("can not find Generic Error Status Block"); + error_setg(errp, + "OSPM does not acknowledge previous error," + " so can not record CPER for current error anymore"); + return; } - return ret; + read_ack_register = cpu_to_le64(0); + /* + * Clear the Read Ack Register, OSPM will write it to 1 when + * it acknowledges this error. + */ + cpu_physical_memory_write(read_ack_register_addr, + &read_ack_register, sizeof(uint64_t)); + + /* Write the generic error data entry into guest memory */ + cpu_physical_memory_write(error_block_addr, cper, len); + + return; +} + +int acpi_ghes_record_errors(uint16_t source_id, uint64_t physical_address) +{ + /* Memory Error Section Type */ + const uint8_t guid[] = + UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \ + 0xED, 0x7C, 0x83, 0xB1); + Error *errp = NULL; + int data_length; + GArray *block; + + if (!physical_address) { + error_report("can not find Generic Error Status Block for source id %d", + source_id); + return -1; + } + + block = g_array_new(false, true /* clear */, 1); + + data_length = ACPI_GHES_DATA_LENGTH + ACPI_GHES_MEM_CPER_LENGTH; + /* + * It should not run out of the preallocated memory if adding a new generic + * error data entry + */ + assert((data_length + ACPI_GHES_GESB_SIZE) <= + ACPI_GHES_MAX_RAW_DATA_LENGTH); + + ghes_gen_err_data_uncorrectable_recoverable(block, guid, + data_length); + + /* Build the memory section CPER for above new generic error data entry */ + acpi_ghes_build_append_mem_cper(block, physical_address); + + /* Report the error */ + ghes_record_cper_errors(block->data, block->len, source_id, &errp); + + g_array_free(block, true); + + if (errp) { + error_report_err(errp); + return -1; + } + + return 0; } bool acpi_ghes_present(void) diff --git a/include/hw/acpi/ghes.h b/include/hw/acpi/ghes.h index 9295e46be25e..8859346af51a 100644 --- a/include/hw/acpi/ghes.h +++ b/include/hw/acpi/ghes.h @@ -23,6 +23,7 @@ #define ACPI_GHES_H #include "hw/acpi/bios-linker-loader.h" +#include "qapi/error.h" /* * Values for Hardware Error Notification Type field @@ -73,6 +74,8 @@ void acpi_build_hest(GArray *table_data, GArray *hardware_errors, const char *oem_id, const char *oem_table_id); void acpi_ghes_add_fw_cfg(AcpiGhesState *vms, FWCfgState *s, GArray *hardware_errors); +void ghes_record_cper_errors(const void *cper, size_t len, + uint16_t source_id, Error **errp); int acpi_ghes_record_errors(uint16_t source_id, uint64_t error_physical_addr); /**