// SPDX-License-Identifier: GPL-2.0-or-later /* * Arch-specific APEI-related functions. */ #include <acpi/apei.h> #include <asm/mce.h> #include <asm/tlbflush.h> int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data) { #ifdef CONFIG_X86_MCE int i; struct acpi_hest_ia_corrected *cmc; struct acpi_hest_ia_error_bank *mc_bank; cmc = (struct acpi_hest_ia_corrected *)hest_hdr; if (!cmc->enabled) return 0; /* * We expect HEST to provide a list of MC banks that report errors * in firmware first mode. Otherwise, return non-zero value to * indicate that we are done parsing HEST. */ if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) || !cmc->num_hardware_banks) return 1; pr_info("HEST: Enabling Firmware First mode for corrected errors.\n"); mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1); for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++) mce_disable_bank(mc_bank->bank_number); #endif return 1; } void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) { #ifdef CONFIG_X86_MCE apei_mce_report_mem_error(sev, mem_err); #endif }