| /* 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(cl_node_t *head) |
| { |
| if (!discover_crashlog()) { |
| printk(BIOS_SPEW, "Crashlog discovery result: crashlog not found\n"); |
| return false; |
| } |
| |
| collect_pmc_and_cpu_crashlog_from_srams(head); |
| |
| /* 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 gesb_header_size; |
| void *cl_acpi_data = NULL; |
| cl_node_t cl_list_head = {.size = 0, .data = NULL, .next = NULL}; |
| |
| if (!boot_error_src_present(&cl_list_head)) { |
| 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; |
| } |
| |
| bool multi_entry = false; |
| cl_node_t *cl_node = cl_list_head.next; |
| while (cl_node) { |
| |
| if ((cl_node->size <= 0) || (!(cl_node->data))) { |
| cl_node = cl_node->next; |
| continue; |
| } |
| |
| if (multi_entry) { |
| if (!bert_append_fw_err(status)) { |
| printk(BIOS_ERR, "Crashlog entry would exceed available region\n"); |
| return CB_ERR; |
| } |
| } |
| |
| cl_acpi_data = new_cper_fw_error_crashlog(status, cl_node->size); |
| if (!cl_acpi_data) { |
| printk(BIOS_ERR, "Crashlog entry(size 0x%x) would exceed available region\n", |
| cl_node->size); |
| return CB_ERR; |
| } |
| memcpy(cl_acpi_data, (void *) cl_node->data, cl_node->size); |
| |
| cl_node_t *temp = cl_node; |
| cl_node = cl_node->next; |
| free_cl_node(temp); |
| multi_entry = true; |
| } |
| |
| *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; |
| } |
| } |