efi: Decode IA32/X64 Processor Error Section

Recognize the IA32/X64 Processor Error Section.

Do the section decoding in a new "cper-x86.c" file and add this to the
Makefile depending on a new "UEFI_CPER_X86" config option.

Print the Local APIC ID and CPUID info from the Processor Error Record.

The "Processor Error Info" and "Processor Context" fields will be
decoded in following patches.

Based on UEFI 2.7 Table 252. Processor Error Record.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20180504060003.19618-5-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Yazen Ghannam 2018-05-04 07:59:50 +02:00 committed by Ingo Molnar
parent 742632d237
commit f9e1bdb9f3
5 changed files with 41 additions and 0 deletions

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@ -174,6 +174,11 @@ config UEFI_CPER_ARM
depends on UEFI_CPER && ( ARM || ARM64 ) depends on UEFI_CPER && ( ARM || ARM64 )
default y default y
config UEFI_CPER_X86
bool
depends on UEFI_CPER && X86
default y
config EFI_DEV_PATH_PARSER config EFI_DEV_PATH_PARSER
bool bool
depends on ACPI depends on ACPI

View File

@ -31,3 +31,4 @@ obj-$(CONFIG_ARM) += $(arm-obj-y)
obj-$(CONFIG_ARM64) += $(arm-obj-y) obj-$(CONFIG_ARM64) += $(arm-obj-y)
obj-$(CONFIG_EFI_CAPSULE_LOADER) += capsule-loader.o obj-$(CONFIG_EFI_CAPSULE_LOADER) += capsule-loader.o
obj-$(CONFIG_UEFI_CPER_ARM) += cper-arm.o obj-$(CONFIG_UEFI_CPER_ARM) += cper-arm.o
obj-$(CONFIG_UEFI_CPER_X86) += cper-x86.o

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@ -0,0 +1,23 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018, Advanced Micro Devices, Inc.
#include <linux/cper.h>
/*
* We don't need a "CPER_IA" prefix since these are all locally defined.
* This will save us a lot of line space.
*/
#define VALID_LAPIC_ID BIT_ULL(0)
#define VALID_CPUID_INFO BIT_ULL(1)
void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc)
{
if (proc->validation_bits & VALID_LAPIC_ID)
printk("%sLocal APIC_ID: 0x%llx\n", pfx, proc->lapic_id);
if (proc->validation_bits & VALID_CPUID_INFO) {
printk("%sCPUID Info:\n", pfx);
print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, proc->cpuid,
sizeof(proc->cpuid), 0);
}
}

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@ -467,6 +467,16 @@ cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata
cper_print_proc_arm(newpfx, arm_err); cper_print_proc_arm(newpfx, arm_err);
else else
goto err_section_too_small; goto err_section_too_small;
#endif
#if defined(CONFIG_UEFI_CPER_X86)
} else if (guid_equal(sec_type, &CPER_SEC_PROC_IA)) {
struct cper_sec_proc_ia *ia_err = acpi_hest_get_payload(gdata);
printk("%ssection_type: IA32/X64 processor error\n", newpfx);
if (gdata->error_data_length >= sizeof(*ia_err))
cper_print_proc_ia(newpfx, ia_err);
else
goto err_section_too_small;
#endif #endif
} else { } else {
const void *err = acpi_hest_get_payload(gdata); const void *err = acpi_hest_get_payload(gdata);

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@ -551,5 +551,7 @@ const char *cper_mem_err_unpack(struct trace_seq *,
struct cper_mem_err_compact *); struct cper_mem_err_compact *);
void cper_print_proc_arm(const char *pfx, void cper_print_proc_arm(const char *pfx,
const struct cper_sec_proc_arm *proc); const struct cper_sec_proc_arm *proc);
void cper_print_proc_ia(const char *pfx,
const struct cper_sec_proc_ia *proc);
#endif #endif