diff options
Diffstat (limited to 'src/soc/intel/common/mma.c')
| -rw-r--r-- | src/soc/intel/common/mma.c | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/src/soc/intel/common/mma.c b/src/soc/intel/common/mma.c new file mode 100644 index 0000000000..3ac47e8d69 --- /dev/null +++ b/src/soc/intel/common/mma.c @@ -0,0 +1,244 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc. + */ + +#include <boot/coreboot_tables.h> +#include <bootstate.h> +#include <cbfs.h> +#include <cbmem.h> +#include <console/console.h> +#include <lib.h> +#include "mma.h" +#include <soc/romstage.h> +#include <string.h> + +#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 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; +} + +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_boot_map_with_leak(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_boot_map_with_leak(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_boot_map_with_leak(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; + + 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, "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); |