efi: Decode IA32/X64 Processor Error Info Structure (7c9449b8) · Commits · 戴 / test

drivers/firmware/efi/cper-x86.c

+48 −0

Original line number	Diff line number	Diff line
		@@ -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++;
		}
		}

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