| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <acpi/acpi.h> |
| #include <acpi/acpigen.h> |
| #include <arch/bert_storage.h> |
| #include <console/console.h> |
| #include <intelblocks/acpi.h> |
| #include <intelblocks/crashlog.h> |
| |
| static bool boot_error_src_present(void) |
| { |
| if (!discover_crashlog()) { |
| printk(BIOS_SPEW, "Crashlog discovery result: crashlog not found\n"); |
| return false; |
| } |
| |
| collect_pmc_and_cpu_crashlog_from_srams(); |
| |
| /* Discovery tables sizes can be larger than the actual valid collected data */ |
| u32 crashlog_size = cl_get_total_data_size(); |
| |
| return (crashlog_size > 0); |
| } |
| |
| static enum cb_err record_crashlog_into_bert(void **region, size_t *length) |
| { |
| acpi_generic_error_status_t *status = NULL; |
| size_t cpu_record_size, pmc_record_size; |
| size_t gesb_header_size; |
| void *cl_data = NULL; |
| |
| if (!boot_error_src_present()) { |
| return CB_ERR; |
| } |
| |
| if (!cl_get_total_data_size()) { |
| printk(BIOS_ERR, "No crashlog record present\n"); |
| return CB_ERR; |
| } |
| |
| status = bert_new_event(&CPER_SEC_FW_ERR_REC_REF_GUID); |
| gesb_header_size = sizeof(*status); |
| |
| if (!status) { |
| printk(BIOS_ERR, "unable to allocate GSB\n"); |
| return CB_ERR; |
| } |
| |
| if (cl_get_total_data_size() > bert_storage_remaining()) { |
| printk(BIOS_ERR, "Crashlog entry would exceed " |
| "available region\n"); |
| return CB_ERR; |
| } |
| |
| cpu_record_size = cl_get_cpu_record_size(); |
| if (cpu_record_size) { |
| cl_data = new_cper_fw_error_crashlog(status, cpu_record_size); |
| if (!cl_data) { |
| printk(BIOS_ERR, "Crashlog CPU entry(size %zu) " |
| "would exceed available region\n", |
| cpu_record_size); |
| return CB_ERR; |
| } |
| printk(BIOS_DEBUG, "cl_data %p, cpu_record_size %zu\n", |
| cl_data, cpu_record_size); |
| cl_fill_cpu_records(cl_data); |
| } |
| |
| pmc_record_size = cl_get_pmc_record_size(); |
| if (pmc_record_size) { |
| /* Allocate new FW ERR structure in case PMC crashlog is present */ |
| if (pmc_record_size && !bert_append_fw_err(status)) { |
| printk(BIOS_ERR, "Crashlog PMC entry would " |
| "exceed available region\n"); |
| return CB_ERR; |
| } |
| |
| cl_data = new_cper_fw_error_crashlog(status, pmc_record_size); |
| if (!cl_data) { |
| printk(BIOS_ERR, "Crashlog PMC entry(size %zu) " |
| "would exceed available region\n", |
| pmc_record_size); |
| return CB_ERR; |
| } |
| printk(BIOS_DEBUG, "cl_data %p, pmc_record_size %zu\n", |
| cl_data, pmc_record_size); |
| cl_fill_pmc_records(cl_data); |
| } |
| |
| *length = status->data_length + gesb_header_size; |
| *region = (void *)status; |
| |
| return CB_SUCCESS; |
| } |
| |
| enum cb_err acpi_soc_get_bert_region(void **region, size_t *length) |
| { |
| if (CONFIG(SOC_INTEL_CRASHLOG)) { |
| return record_crashlog_into_bert(region, length); |
| } else { |
| /* Check if MCA error has been added into BERT. */ |
| if (bert_should_generate_acpi_table()) { |
| bert_errors_region(region, length); |
| if (!*region) { |
| printk(BIOS_ERR, "Can't find BERT storage area\n"); |
| return CB_ERR; |
| } |
| } |
| return CB_SUCCESS; |
| } |
| } |