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>
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@ -174,6 +174,11 @@ config UEFI_CPER_ARM
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depends on UEFI_CPER && ( ARM || ARM64 )
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depends on UEFI_CPER && ( ARM || ARM64 )
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default y
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default y
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config UEFI_CPER_X86
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bool
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depends on UEFI_CPER && X86
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default y
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config EFI_DEV_PATH_PARSER
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config EFI_DEV_PATH_PARSER
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bool
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bool
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depends on ACPI
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depends on ACPI
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@ -31,3 +31,4 @@ obj-$(CONFIG_ARM) += $(arm-obj-y)
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obj-$(CONFIG_ARM64) += $(arm-obj-y)
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obj-$(CONFIG_ARM64) += $(arm-obj-y)
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obj-$(CONFIG_EFI_CAPSULE_LOADER) += capsule-loader.o
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obj-$(CONFIG_EFI_CAPSULE_LOADER) += capsule-loader.o
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obj-$(CONFIG_UEFI_CPER_ARM) += cper-arm.o
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obj-$(CONFIG_UEFI_CPER_ARM) += cper-arm.o
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obj-$(CONFIG_UEFI_CPER_X86) += cper-x86.o
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@ -0,0 +1,23 @@
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2018, Advanced Micro Devices, Inc.
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#include <linux/cper.h>
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/*
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* We don't need a "CPER_IA" prefix since these are all locally defined.
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* This will save us a lot of line space.
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*/
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#define VALID_LAPIC_ID BIT_ULL(0)
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#define VALID_CPUID_INFO BIT_ULL(1)
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void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc)
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{
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if (proc->validation_bits & VALID_LAPIC_ID)
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printk("%sLocal APIC_ID: 0x%llx\n", pfx, proc->lapic_id);
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if (proc->validation_bits & VALID_CPUID_INFO) {
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printk("%sCPUID Info:\n", pfx);
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print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, proc->cpuid,
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sizeof(proc->cpuid), 0);
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}
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}
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@ -467,6 +467,16 @@ cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata
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cper_print_proc_arm(newpfx, arm_err);
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cper_print_proc_arm(newpfx, arm_err);
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else
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else
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goto err_section_too_small;
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goto err_section_too_small;
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#endif
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#if defined(CONFIG_UEFI_CPER_X86)
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} else if (guid_equal(sec_type, &CPER_SEC_PROC_IA)) {
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struct cper_sec_proc_ia *ia_err = acpi_hest_get_payload(gdata);
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printk("%ssection_type: IA32/X64 processor error\n", newpfx);
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if (gdata->error_data_length >= sizeof(*ia_err))
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cper_print_proc_ia(newpfx, ia_err);
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else
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goto err_section_too_small;
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#endif
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#endif
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} else {
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} else {
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const void *err = acpi_hest_get_payload(gdata);
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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 *,
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struct cper_mem_err_compact *);
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struct cper_mem_err_compact *);
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void cper_print_proc_arm(const char *pfx,
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void cper_print_proc_arm(const char *pfx,
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const struct cper_sec_proc_arm *proc);
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const struct cper_sec_proc_arm *proc);
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void cper_print_proc_ia(const char *pfx,
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const struct cper_sec_proc_ia *proc);
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#endif
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#endif
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