Commit-ID: 7c9449b8c8a59511b7d749afb193c96353451c82 Gitweb: https://git.kernel.org/tip/7c9449b8c8a59511b7d749afb193c96353451c82 Author: Yazen Ghannam <yazen.ghan...@amd.com> AuthorDate: Fri, 4 May 2018 07:59:51 +0200 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Mon, 14 May 2018 08:57:47 +0200
efi: Decode IA32/X64 Processor Error Info Structure Print the fields in the IA32/X64 Processor Error Info Structure. Based on UEFI 2.7 Table 253. IA32/X64 Processor Error Information Structure. Signed-off-by: Yazen Ghannam <yazen.ghan...@amd.com> Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Matt Fleming <m...@codeblueprint.co.uk> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: linux-...@vger.kernel.org Link: http://lkml.kernel.org/r/20180504060003.19618-6-ard.biesheu...@linaro.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- drivers/firmware/efi/cper-x86.c | 48 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/drivers/firmware/efi/cper-x86.c b/drivers/firmware/efi/cper-x86.c index 863f0cd2a0ff..e0633a103fcf 100644 --- a/drivers/firmware/efi/cper-x86.c +++ b/drivers/firmware/efi/cper-x86.c @@ -9,9 +9,20 @@ */ #define VALID_LAPIC_ID BIT_ULL(0) #define VALID_CPUID_INFO BIT_ULL(1) +#define VALID_PROC_ERR_INFO_NUM(bits) (((bits) & GENMASK_ULL(7, 2)) >> 2) + +#define INFO_VALID_CHECK_INFO BIT_ULL(0) +#define INFO_VALID_TARGET_ID BIT_ULL(1) +#define INFO_VALID_REQUESTOR_ID BIT_ULL(2) +#define INFO_VALID_RESPONDER_ID BIT_ULL(3) +#define INFO_VALID_IP BIT_ULL(4) void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc) { + int i; + struct cper_ia_err_info *err_info; + char newpfx[64]; + if (proc->validation_bits & VALID_LAPIC_ID) printk("%sLocal APIC_ID: 0x%llx\n", pfx, proc->lapic_id); @@ -20,4 +31,41 @@ void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc) print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, proc->cpuid, sizeof(proc->cpuid), 0); } + + snprintf(newpfx, sizeof(newpfx), "%s ", pfx); + + err_info = (struct cper_ia_err_info *)(proc + 1); + for (i = 0; i < VALID_PROC_ERR_INFO_NUM(proc->validation_bits); i++) { + printk("%sError Information Structure %d:\n", pfx, i); + + printk("%sError Structure Type: %pUl\n", newpfx, + &err_info->err_type); + + if (err_info->validation_bits & INFO_VALID_CHECK_INFO) { + printk("%sCheck Information: 0x%016llx\n", newpfx, + err_info->check_info); + } + + if (err_info->validation_bits & INFO_VALID_TARGET_ID) { + printk("%sTarget Identifier: 0x%016llx\n", + newpfx, err_info->target_id); + } + + if (err_info->validation_bits & INFO_VALID_REQUESTOR_ID) { + printk("%sRequestor Identifier: 0x%016llx\n", + newpfx, err_info->requestor_id); + } + + if (err_info->validation_bits & INFO_VALID_RESPONDER_ID) { + printk("%sResponder Identifier: 0x%016llx\n", + newpfx, err_info->responder_id); + } + + if (err_info->validation_bits & INFO_VALID_IP) { + printk("%sInstruction Pointer: 0x%016llx\n", + newpfx, err_info->ip); + } + + err_info++; + } }
