/* * This file is part of the coreboot project. * * Copyright (C) 2015 Intel Corporation. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include "mma.h" #include #include #include #define MMA_TEST_METADATA_FILENAME "mma_test_metadata.bin" #define MMA_TEST_NAME_TAG "MMA_TEST_NAME" #define MMA_TEST_PARAM_TAG "MMA_TEST_PARAM" #define MMA_CBFS_REGION "COREBOOT" #define TEST_NAME_MAX_SIZE 30 #define TEST_PARAM_MAX_SIZE 100 #define FSP_MMA_RESULTS_GUID { 0x8f4e928, 0xf5f, 0x46d4, \ { 0x84, 0x10, 0x47, 0x9f, 0xda, 0x27, 0x9d, 0xb6 } } #define MMA_DATA_SIGNATURE (('M'<<0)|('M'<<8)|('A'<<16)|('D'<<24)) struct mma_data_container { u32 mma_signature; // "MMAD" u8 mma_data[0]; // Variable size, platform/run time dependent. } __attribute__ ((packed)); /* Format of the MMA test metadata file, stored under CBFS MMA_TEST_NAME=xxxxxx.efi;MMA_TEST_PARAM=xxxxxx.bin; */ /* Returns index in haystack after 'LABEL=' string is found, < 0 on error. */ static int find_label(const char *haystack, size_t haystack_sz, const char *label) { size_t label_sz; size_t i; size_t search_sz; label_sz = strlen(label); if (label_sz + 1 >= haystack_sz) return -1; /* Handle '=' follow label. i.e. LABEL= */ search_sz = haystack_sz - label_sz - 1; for (i = 0; i < search_sz; i++) { if (!strncmp(&haystack[i], label, label_sz)) break; } if (i == search_sz) return -1; if (haystack[i + label_sz] != '=') return -1; return i + label_sz + 1; } /* * Fill in value in dest field located by LABEL=. * Returns 0 on success, < 0 on error. */ static int label_value(const char *haystack, size_t haystack_sz, const char *label, char *dest, size_t dest_sz) { size_t val_begin; size_t val_end; size_t val_sz; int val_index; memset(dest, 0, dest_sz); /* Allow for NULL termination. */ dest_sz--; val_index = find_label(haystack, haystack_sz, label); if (val_index < 0) return -1; val_begin = val_index; val_end = val_begin; val_sz = 0; for (val_end = val_begin; val_end < haystack_sz; val_end++) { if (haystack[val_end] == ';') { val_sz = val_end - val_begin; break; } } if (val_end == haystack_sz) return -1; if (dest_sz < val_sz) return -1; memcpy(dest, &haystack[val_begin], val_sz); return 0; } static void *cbfs_locate_file_in_region(const char *region_name, const char *file_name, uint32_t file_type, uint32_t *file_size) { struct region_device rdev; struct cbfsf fh; if (file_size != NULL) *file_size = 0; if (fmap_locate_area_as_rdev(region_name, &rdev) == 0) { if (cbfs_locate(&fh, &rdev, file_name, &file_type) == 0) { if (file_size != NULL) *file_size = region_device_sz(&fh.data); return rdev_mmap_full(&fh.data); } else printk(BIOS_DEBUG, "%s file not found in %s region\n", file_name, region_name); } else printk(BIOS_DEBUG,"%s region not found while looking for %s\n", region_name, file_name); return NULL; } void setup_mma(MEMORY_INIT_UPD *memory_params) { void *mma_test_metadata, *mma_test_content, *mma_test_param; size_t mma_test_metadata_file_len, mma_test_content_file_len, mma_test_param_file_len; char test_filename[TEST_NAME_MAX_SIZE], test_param_filename[TEST_PARAM_MAX_SIZE]; printk(BIOS_DEBUG, "Entry setup_mma\n"); memory_params->MmaTestContentPtr = 0; memory_params->MmaTestContentSize = 0; memory_params->MmaTestConfigPtr = 0; memory_params->MmaTestConfigSize = 0; mma_test_metadata = cbfs_locate_file_in_region(MMA_CBFS_REGION, MMA_TEST_METADATA_FILENAME, CBFS_TYPE_MMA, &mma_test_metadata_file_len); if (!mma_test_metadata) { printk(BIOS_DEBUG, "MMA setup failed: Failed to read %s\n", MMA_TEST_METADATA_FILENAME); return; } if (label_value(mma_test_metadata, mma_test_metadata_file_len, MMA_TEST_NAME_TAG, test_filename, TEST_NAME_MAX_SIZE)) { printk(BIOS_DEBUG, "MMA setup failed : Failed to get %s", MMA_TEST_NAME_TAG); return; } if (label_value(mma_test_metadata, mma_test_metadata_file_len, MMA_TEST_PARAM_TAG, test_param_filename, TEST_PARAM_MAX_SIZE)) { printk(BIOS_DEBUG, "MMA setup failed : Failed to get %s", MMA_TEST_PARAM_TAG); return; } printk(BIOS_DEBUG, "Got MMA_TEST_NAME=%s MMA_TEST_PARAM=%s\n", test_filename, test_param_filename); mma_test_content = cbfs_locate_file_in_region(MMA_CBFS_REGION, test_filename, CBFS_TYPE_EFI, &mma_test_content_file_len); if (!mma_test_content) { printk(BIOS_DEBUG, "MMA setup failed: Failed to read %s.\n", test_filename); return; } mma_test_param = cbfs_locate_file_in_region(MMA_CBFS_REGION, test_param_filename, CBFS_TYPE_MMA, &mma_test_param_file_len); if (!mma_test_param) { printk(BIOS_DEBUG, "MMA setup failed: Failed to read %s.\n", test_param_filename); return; } memory_params->MmaTestContentPtr = (uintptr_t) mma_test_content; memory_params->MmaTestContentSize = mma_test_content_file_len; memory_params->MmaTestConfigPtr = (uintptr_t) mma_test_param; memory_params->MmaTestConfigSize = mma_test_param_file_len; memory_params->MrcFastBoot = 0x00; memory_params->SaGv = 0x02; printk(BIOS_DEBUG, "MMA Test name %s\n", test_filename); printk(BIOS_DEBUG, "MMA Test Config name %s\n", test_param_filename); printk(BIOS_DEBUG, "MMA passing following memory_params\n"); printk(BIOS_DEBUG, "memory_params->MmaTestContentPtr = %0x\n", memory_params->MmaTestContentPtr); printk(BIOS_DEBUG, "memory_params->MmaTestContentSize = %d\n", memory_params->MmaTestContentSize); printk(BIOS_DEBUG, "memory_params->MmaTestConfigPtr = %0x\n", memory_params->MmaTestConfigPtr); printk(BIOS_DEBUG, "memory_params->MmaTestConfigSize = %d\n", memory_params->MmaTestConfigSize); printk(BIOS_DEBUG, "memory_params->MrcFastBoot = %d\n", memory_params->MrcFastBoot); printk(BIOS_DEBUG, "memory_params->SaGv = %d\n", memory_params->SaGv); printk(BIOS_DEBUG, "MMA setup successfully\n"); } static void save_mma_results_data(void *unused) { void *mma_results_hob; u32 mma_hob_size; u32 *mma_hob_data; struct mma_data_container *mma_data; int cbmem_size; const EFI_GUID mma_results_guid = FSP_MMA_RESULTS_GUID; printk(BIOS_DEBUG, "Entry save_mma_results_data MMA save data.\n"); mma_results_hob = get_first_guid_hob(&mma_results_guid); if (mma_results_hob == NULL) { printk(BIOS_DEBUG, "MMA results data Hob not present\n"); return; } mma_hob_data = GET_GUID_HOB_DATA(mma_results_hob); mma_hob_size = GET_HOB_LENGTH(mma_results_hob); cbmem_size = ALIGN(mma_hob_size, 16) + sizeof(struct mma_data_container); mma_data = cbmem_add(CBMEM_ID_MMA_DATA, cbmem_size); if (mma_data == NULL) { printk(BIOS_DEBUG, "CBMEM was not available to save the MMA data.\n"); return; } /*clear the mma_data before coping the actual data */ memset(mma_data, 0, cbmem_size); printk(BIOS_DEBUG, "Copy MMA DATA to HOB(src addr %p, dest addr %p, %u bytes)\n", mma_hob_data, mma_data, mma_hob_size); mma_data->mma_signature = MMA_DATA_SIGNATURE; memcpy(mma_data->mma_data, mma_hob_data, mma_hob_size); printk(BIOS_DEBUG, "write MMA results data to cbmem success\n"); } BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, save_mma_results_data, NULL);