| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
|---|---|
| 2 | /* |
| 3 | * Arch-specific APEI-related functions. |
| 4 | */ |
| 5 | |
| 6 | #include <acpi/apei.h> |
| 7 | |
| 8 | #include <asm/mce.h> |
| 9 | #include <asm/tlbflush.h> |
| 10 | |
| 11 | int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data) |
| 12 | { |
| 13 | #ifdef CONFIG_X86_MCE |
| 14 | int i; |
| 15 | struct acpi_hest_ia_corrected *cmc; |
| 16 | struct acpi_hest_ia_error_bank *mc_bank; |
| 17 | |
| 18 | cmc = (struct acpi_hest_ia_corrected *)hest_hdr; |
| 19 | if (!cmc->enabled) |
| 20 | return 0; |
| 21 | |
| 22 | /* |
| 23 | * We expect HEST to provide a list of MC banks that report errors |
| 24 | * in firmware first mode. Otherwise, return non-zero value to |
| 25 | * indicate that we are done parsing HEST. |
| 26 | */ |
| 27 | if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) || |
| 28 | !cmc->num_hardware_banks) |
| 29 | return 1; |
| 30 | |
| 31 | pr_info("HEST: Enabling Firmware First mode for corrected errors.\n"); |
| 32 | |
| 33 | mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1); |
| 34 | for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++) |
| 35 | mce_disable_bank(bank: mc_bank->bank_number); |
| 36 | #endif |
| 37 | return 1; |
| 38 | } |
| 39 | |
| 40 | void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) |
| 41 | { |
| 42 | #ifdef CONFIG_X86_MCE |
| 43 | apei_mce_report_mem_error(corrected: sev, mem_err); |
| 44 | #endif |
| 45 | } |
| 46 | |
| 47 | int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info, u64 lapic_id) |
| 48 | { |
| 49 | return apei_smca_report_x86_error(ctx_info, lapic_id); |
| 50 | } |
| 51 |