ACPI, APEI, UEFI Common Platform Error Record (CPER) header (06d65dea) · Commits · 戴 / test

drivers/acpi/apei/Makefile

+1 −1

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		obj-$(CONFIG_ACPI_APEI) += apei.o
		obj-$(CONFIG_ACPI_APEI_EINJ) += einj.o

		apei-y := apei-base.o hest.o
		apei-y := apei-base.o hest.o cper.o

drivers/acpi/apei/apei-internal.h

+19 −0

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		@@ -6,6 +6,8 @@
		#ifndef APEI_INTERNAL_H
		#define APEI_INTERNAL_H

		#include <linux/cper.h>

		struct apei_exec_context;

		typedef int (apei_exec_ins_func_t)(struct apei_exec_context ctx,
		@@ -92,4 +94,21 @@ int apei_exec_collect_resources(struct apei_exec_context *ctx,

		struct dentry;
		struct dentry *apei_get_debugfs_dir(void);

		#define apei_estatus_for_each_section(estatus, section) \
		for (section = (struct acpi_hest_generic_data *)(estatus + 1); \
		(void )section - (void )estatus < estatus->data_length; \
		section = (void *)(section+1) + section->error_data_length)

		static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus)
		{
		if (estatus->raw_data_length)
		return estatus->raw_data_offset + \
		estatus->raw_data_length;
		else
		return sizeof(*estatus) + estatus->data_length;
		}

		int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus);
		int apei_estatus_check(const struct acpi_hest_generic_status *estatus);
		#endif

drivers/acpi/apei/cper.c

0 → 100644

+84 −0

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		/*
		* UEFI Common Platform Error Record (CPER) support
		*
		* Copyright (C) 2010, Intel Corp.
		* Author: Huang Ying <ying.huang@intel.com>
		*
		* CPER is the format used to describe platform hardware error by
		* various APEI tables, such as ERST, BERT and HEST etc.
		*
		* For more information about CPER, please refer to Appendix N of UEFI
		* Specification version 2.3.
		*
		* This program is free software; you can redistribute it and/or
		* modify it under the terms of the GNU General Public License version
		* 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
		*/

		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/time.h>
		#include <linux/cper.h>
		#include <linux/acpi.h>

		/*
		* CPER record ID need to be unique even after reboot, because record
		* ID is used as index for ERST storage, while CPER records from
		* multiple boot may co-exist in ERST.
		*/
		u64 cper_next_record_id(void)
		{
		static atomic64_t seq;

		if (!atomic64_read(&seq))
		atomic64_set(&seq, ((u64)get_seconds()) << 32);

		return atomic64_inc_return(&seq);
		}
		EXPORT_SYMBOL_GPL(cper_next_record_id);

		int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus)
		{
		if (estatus->data_length &&
		estatus->data_length < sizeof(struct acpi_hest_generic_data))
		return -EINVAL;
		if (estatus->raw_data_length &&
		estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length)
		return -EINVAL;

		return 0;
		}
		EXPORT_SYMBOL_GPL(apei_estatus_check_header);

		int apei_estatus_check(const struct acpi_hest_generic_status *estatus)
		{
		struct acpi_hest_generic_data *gdata;
		unsigned int data_len, gedata_len;
		int rc;

		rc = apei_estatus_check_header(estatus);
		if (rc)
		return rc;
		data_len = estatus->data_length;
		gdata = (struct acpi_hest_generic_data *)(estatus + 1);
		while (data_len > sizeof(*gdata)) {
		gedata_len = gdata->error_data_length;
		if (gedata_len > data_len - sizeof(*gdata))
		return -EINVAL;
		data_len -= gedata_len + sizeof(*gdata);
		}
		if (data_len)
		return -EINVAL;

		return 0;
		}
		EXPORT_SYMBOL_GPL(apei_estatus_check);

include/linux/cper.h

0 → 100644

+314 −0

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		/*
		* UEFI Common Platform Error Record
		*
		* Copyright (C) 2010, Intel Corp.
		* Author: Huang Ying <ying.huang@intel.com>
		*
		* This program is free software; you can redistribute it and/or
		* modify it under the terms of the GNU General Public License version
		* 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
		*/

		#ifndef LINUX_CPER_H
		#define LINUX_CPER_H

		#include <linux/uuid.h>

		/* CPER record signature and the size */
		#define CPER_SIG_RECORD "CPER"
		#define CPER_SIG_SIZE 4
		/* Used in signature_end field in struct cper_record_header */
		#define CPER_SIG_END 0xffffffff

		/*
		* CPER record header revision, used in revision field in struct
		* cper_record_header
		*/
		#define CPER_RECORD_REV 0x0100

		/*
		* Severity difinition for error_severity in struct cper_record_header
		* and section_severity in struct cper_section_descriptor
		*/
		#define CPER_SER_RECOVERABLE 0x0
		#define CPER_SER_FATAL 0x1
		#define CPER_SER_CORRECTED 0x2
		#define CPER_SER_INFORMATIONAL 0x3

		/*
		* Validation bits difinition for validation_bits in struct
		* cper_record_header. If set, corresponding fields in struct
		* cper_record_header contain valid information.
		*
		* corresponds platform_id
		*/
		#define CPER_VALID_PLATFORM_ID 0x0001
		/* corresponds timestamp */
		#define CPER_VALID_TIMESTAMP 0x0002
		/* corresponds partition_id */
		#define CPER_VALID_PARTITION_ID 0x0004

		/*
		* Notification type used to generate error record, used in
		* notification_type in struct cper_record_header
		*
		* Corrected Machine Check
		*/
		#define CPER_NOTIFY_CMC \
		UUID_LE(0x2DCE8BB1, 0xBDD7, 0x450e, 0xB9, 0xAD, 0x9C, 0xF4, \
		0xEB, 0xD4, 0xF8, 0x90)
		/* Corrected Platform Error */
		#define CPER_NOTIFY_CPE \
		UUID_LE(0x4E292F96, 0xD843, 0x4a55, 0xA8, 0xC2, 0xD4, 0x81, \
		0xF2, 0x7E, 0xBE, 0xEE)
		/* Machine Check Exception */
		#define CPER_NOTIFY_MCE \
		UUID_LE(0xE8F56FFE, 0x919C, 0x4cc5, 0xBA, 0x88, 0x65, 0xAB, \
		0xE1, 0x49, 0x13, 0xBB)
		/* PCI Express Error */
		#define CPER_NOTIFY_PCIE \
		UUID_LE(0xCF93C01F, 0x1A16, 0x4dfc, 0xB8, 0xBC, 0x9C, 0x4D, \
		0xAF, 0x67, 0xC1, 0x04)
		/* INIT Record (for IPF) */
		#define CPER_NOTIFY_INIT \
		UUID_LE(0xCC5263E8, 0x9308, 0x454a, 0x89, 0xD0, 0x34, 0x0B, \
		0xD3, 0x9B, 0xC9, 0x8E)
		/* Non-Maskable Interrupt */
		#define CPER_NOTIFY_NMI \
		UUID_LE(0x5BAD89FF, 0xB7E6, 0x42c9, 0x81, 0x4A, 0xCF, 0x24, \
		0x85, 0xD6, 0xE9, 0x8A)
		/* BOOT Error Record */
		#define CPER_NOTIFY_BOOT \
		UUID_LE(0x3D61A466, 0xAB40, 0x409a, 0xA6, 0x98, 0xF3, 0x62, \
		0xD4, 0x64, 0xB3, 0x8F)
		/* DMA Remapping Error */
		#define CPER_NOTIFY_DMAR \
		UUID_LE(0x667DD791, 0xC6B3, 0x4c27, 0x8A, 0x6B, 0x0F, 0x8E, \
		0x72, 0x2D, 0xEB, 0x41)

		/*
		* Flags bits definitions for flags in struct cper_record_header
		* If set, the error has been recovered
		*/
		#define CPER_HW_ERROR_FLAGS_RECOVERED 0x1
		/* If set, the error is for previous boot */
		#define CPER_HW_ERROR_FLAGS_PREVERR 0x2
		/* If set, the error is injected for testing */
		#define CPER_HW_ERROR_FLAGS_SIMULATED 0x4

		/*
		* CPER section header revision, used in revision field in struct
		* cper_section_descriptor
		*/
		#define CPER_SEC_REV 0x0100

		/*
		* Validation bits difinition for validation_bits in struct
		* cper_section_descriptor. If set, corresponding fields in struct
		* cper_section_descriptor contain valid information.
		*
		* corresponds fru_id
		*/
		#define CPER_SEC_VALID_FRU_ID 0x1
		/* corresponds fru_text */
		#define CPER_SEC_VALID_FRU_TEXT 0x2

		/*
		* Flags bits definitions for flags in struct cper_section_descriptor
		*
		* If set, the section is associated with the error condition
		* directly, and should be focused on
		*/
		#define CPER_SEC_PRIMARY 0x0001
		/*
		* If set, the error was not contained within the processor or memory
		* hierarchy and the error may have propagated to persistent storage
		* or network
		*/
		#define CPER_SEC_CONTAINMENT_WARNING 0x0002
		/* If set, the component must be re-initialized or re-enabled prior to use */
		#define CPER_SEC_RESET 0x0004
		/* If set, Linux may choose to discontinue use of the resource */
		#define CPER_SEC_ERROR_THRESHOLD_EXCEEDED 0x0008
		/*
		* If set, resource could not be queried for error information due to
		* conflicts with other system software or resources. Some fields of
		* the section will be invalid
		*/
		#define CPER_SEC_RESOURCE_NOT_ACCESSIBLE 0x0010
		/*
		* If set, action has been taken to ensure error containment (such as
		* poisoning data), but the error has not been fully corrected and the
		* data has not been consumed. Linux may choose to take further
		* corrective action before the data is consumed
		*/
		#define CPER_SEC_LATENT_ERROR 0x0020

		/*
		* Section type definitions, used in section_type field in struct
		* cper_section_descriptor
		*
		* Processor Generic
		*/
		#define CPER_SEC_PROC_GENERIC \
		UUID_LE(0x9876CCAD, 0x47B4, 0x4bdb, 0xB6, 0x5E, 0x16, 0xF1, \
		0x93, 0xC4, 0xF3, 0xDB)
		/* Processor Specific: X86/X86_64 */
		#define CPER_SEC_PROC_IA \
		UUID_LE(0xDC3EA0B0, 0xA144, 0x4797, 0xB9, 0x5B, 0x53, 0xFA, \
		0x24, 0x2B, 0x6E, 0x1D)
		/* Processor Specific: IA64 */
		#define CPER_SEC_PROC_IPF \
		UUID_LE(0xE429FAF1, 0x3CB7, 0x11D4, 0x0B, 0xCA, 0x07, 0x00, \
		0x80, 0xC7, 0x3C, 0x88, 0x81)
		/* Platform Memory */
		#define CPER_SEC_PLATFORM_MEM \
		UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83, \
		0xED, 0x7C, 0x83, 0xB1)
		#define CPER_SEC_PCIE \
		UUID_LE(0xD995E954, 0xBBC1, 0x430F, 0xAD, 0x91, 0xB4, 0x4D, \
		0xCB, 0x3C, 0x6F, 0x35)
		/* Firmware Error Record Reference */
		#define CPER_SEC_FW_ERR_REC_REF \
		UUID_LE(0x81212A96, 0x09ED, 0x4996, 0x94, 0x71, 0x8D, 0x72, \
		0x9C, 0x8E, 0x69, 0xED)
		/* PCI/PCI-X Bus */
		#define CPER_SEC_PCI_X_BUS \
		UUID_LE(0xC5753963, 0x3B84, 0x4095, 0xBF, 0x78, 0xED, 0xDA, \
		0xD3, 0xF9, 0xC9, 0xDD)
		/* PCI Component/Device */
		#define CPER_SEC_PCI_DEV \
		UUID_LE(0xEB5E4685, 0xCA66, 0x4769, 0xB6, 0xA2, 0x26, 0x06, \
		0x8B, 0x00, 0x13, 0x26)
		#define CPER_SEC_DMAR_GENERIC \
		UUID_LE(0x5B51FEF7, 0xC79D, 0x4434, 0x8F, 0x1B, 0xAA, 0x62, \
		0xDE, 0x3E, 0x2C, 0x64)
		/* Intel VT for Directed I/O specific DMAr */
		#define CPER_SEC_DMAR_VT \
		UUID_LE(0x71761D37, 0x32B2, 0x45cd, 0xA7, 0xD0, 0xB0, 0xFE, \
		0xDD, 0x93, 0xE8, 0xCF)
		/* IOMMU specific DMAr */
		#define CPER_SEC_DMAR_IOMMU \
		UUID_LE(0x036F84E1, 0x7F37, 0x428c, 0xA7, 0x9E, 0x57, 0x5F, \
		0xDF, 0xAA, 0x84, 0xEC)

		/*
		* All tables and structs must be byte-packed to match CPER
		* specification, since the tables are provided by the system BIOS
		*/
		#pragma pack(1)

		struct cper_record_header {
		char signature[CPER_SIG_SIZE]; /* must be CPER_SIG_RECORD */
		__u16 revision; /* must be CPER_RECORD_REV */
		__u32 signature_end; /* must be CPER_SIG_END */
		__u16 section_count;
		__u32 error_severity;
		__u32 validation_bits;
		__u32 record_length;
		__u64 timestamp;
		uuid_le platform_id;
		uuid_le partition_id;
		uuid_le creator_id;
		uuid_le notification_type;
		__u64 record_id;
		__u32 flags;
		__u64 persistence_information;
		__u8 reserved[12]; /* must be zero */
		};

		struct cper_section_descriptor {
		__u32 section_offset; /* Offset in bytes of the
		* section body from the base
		* of the record header */
		__u32 section_length;
		__u16 revision; /* must be CPER_RECORD_REV */
		__u8 validation_bits;
		__u8 reserved; /* must be zero */
		__u32 flags;
		uuid_le section_type;
		uuid_le fru_id;
		__u32 section_severity;
		__u8 fru_text[20];
		};

		/* Generic Processor Error Section */
		struct cper_sec_proc_generic {
		__u64 validation_bits;
		__u8 proc_type;
		__u8 proc_isa;
		__u8 proc_error_type;
		__u8 operation;
		__u8 flags;
		__u8 level;
		__u16 reserved;
		__u64 cpu_version;
		char cpu_brand[128];
		__u64 proc_id;
		__u64 target_addr;
		__u64 requestor_id;
		__u64 responder_id;
		__u64 ip;
		};

		/* IA32/X64 Processor Error Section */
		struct cper_sec_proc_ia {
		__u64 validation_bits;
		__u8 lapic_id;
		__u8 cpuid[48];
		};

		/* IA32/X64 Processor Error Infomation Structure */
		struct cper_ia_err_info {
		uuid_le err_type;
		__u64 validation_bits;
		__u64 check_info;
		__u64 target_id;
		__u64 requestor_id;
		__u64 responder_id;
		__u64 ip;
		};

		/* IA32/X64 Processor Context Information Structure */
		struct cper_ia_proc_ctx {
		__u16 reg_ctx_type;
		__u16 reg_arr_size;
		__u32 msr_addr;
		__u64 mm_reg_addr;
		};

		/* Memory Error Section */
		struct cper_sec_mem_err {
		__u64 validation_bits;
		__u64 error_status;
		__u64 physical_addr;
		__u64 physical_addr_mask;
		__u16 node;
		__u16 card;
		__u16 module;
		__u16 bank;
		__u16 device;
		__u16 row;
		__u16 column;
		__u16 bit_pos;
		__u64 requestor_id;
		__u64 responder_id;
		__u64 target_id;
		__u8 error_type;
		};

		/* Reset to default packing */
		#pragma pack()

		u64 cper_next_record_id(void);

		#endif

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