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| author | Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com> | 2020-11-19 12:29:38 -0600 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-11-21 12:05:41 +0100 |
| commit | 4a24d80b8c3e9f89d6a6a7b89bd057c463b638d3 (patch) | |
| tree | 1917ef2fe7729275fee986ebc53247a8b48dd82a /arch/x86/include/asm/acpi.h | |
| parent | 098416e6986127f7e4c8ce4fd6bbbd80e55b0386 (diff) | |
| download | linux-4a24d80b8c3e9f89d6a6a7b89bd057c463b638d3.tar.gz linux-4a24d80b8c3e9f89d6a6a7b89bd057c463b638d3.tar.bz2 linux-4a24d80b8c3e9f89d6a6a7b89bd057c463b638d3.zip | |
x86/mce, cper: Pass x86 CPER through the MCA handling chain
The kernel uses ACPI Boot Error Record Table (BERT) to report fatal
errors that occurred in a previous boot. The MCA errors in the BERT are
reported using the x86 Processor Error Common Platform Error Record
(CPER) format. Currently, the record prints out the raw MSR values and
AMD relies on the raw record to provide MCA information.
Extract the raw MSR values of MCA registers from the BERT and feed them
into mce_log() to decode them properly.
The implementation is SMCA-specific as the raw MCA register values are
given in the register offset order of the SMCA address space.
[ bp: Massage. ]
[ Fix a build breakage in patch v1. ]
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lkml.kernel.org/r/20201119182938.151155-1-Smita.KoralahalliChannabasappa@amd.com
Diffstat (limited to 'arch/x86/include/asm/acpi.h')
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 6d2df1ee427b..65064d9f7fa6 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -159,6 +159,8 @@ static inline u64 x86_default_get_root_pointer(void) extern int x86_acpi_numa_init(void); #endif /* CONFIG_ACPI_NUMA */ +struct cper_ia_proc_ctx; + #ifdef CONFIG_ACPI_APEI static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) { @@ -177,6 +179,15 @@ static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr) */ return PAGE_KERNEL_NOENC; } + +int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info, + u64 lapic_id); +#else +static inline int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info, + u64 lapic_id) +{ + return -EINVAL; +} #endif #define ACPI_TABLE_UPGRADE_MAX_PHYS (max_low_pfn_mapped << PAGE_SHIFT) |