| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2013-2014 Sage Electronic Engineering, LLC. |
| * Copyright (C) 2015 Intel Corp. |
| * |
| * 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 <arch/early_variables.h> |
| #include <arch/hlt.h> |
| #include <bootstate.h> |
| #include <cbmem.h> |
| #include <console/console.h> |
| #include "fsp_util.h" |
| #include <ip_checksum.h> |
| #include <lib.h> // hexdump |
| #include <string.h> |
| |
| /* |
| * Reads a 64-bit value from memory that may be unaligned. |
| * |
| * This function returns the 64-bit value pointed to by buffer. The |
| * function guarantees that the read operation does not produce an |
| * alignment fault. |
| * |
| * If buffer is NULL, then ASSERT(). |
| * |
| * buffer: Pointer to a 64-bit value that may be unaligned. |
| * |
| * Returns the 64-bit value read from buffer. |
| * |
| */ |
| static |
| uint64_t |
| read_unaligned_64( |
| const uint64_t *buffer |
| ) |
| { |
| ASSERT(buffer != NULL); |
| |
| return *buffer; |
| } |
| |
| /* |
| * Compares two GUIDs. |
| * |
| * This function compares guid1 to guid2. If the GUIDs are identical then |
| * TRUE is returned. If there are any bit differences in the two GUIDs, |
| * then FALSE is returned. |
| * |
| * If guid1 is NULL, then ASSERT(). |
| * If guid2 is NULL, then ASSERT(). |
| * |
| * guid1: A pointer to a 128 bit GUID. |
| * guid2: A pointer to a 128 bit GUID. |
| * |
| * Returns non-zero if guid1 and guid2 are identical, otherwise returns 0. |
| * |
| */ |
| static |
| long |
| compare_guid( |
| const EFI_GUID * guid1, |
| const EFI_GUID * guid2 |
| ) |
| { |
| uint64_t low_part_of_guid1; |
| uint64_t low_part_of_guid2; |
| uint64_t high_part_of_guid1; |
| uint64_t high_part_of_guid2; |
| |
| low_part_of_guid1 = read_unaligned_64((const uint64_t *) guid1); |
| low_part_of_guid2 = read_unaligned_64((const uint64_t *) guid2); |
| high_part_of_guid1 = read_unaligned_64((const uint64_t *) guid1 + 1); |
| high_part_of_guid2 = read_unaligned_64((const uint64_t *) guid2 + 1); |
| |
| return ((low_part_of_guid1 == low_part_of_guid2) |
| && (high_part_of_guid1 == high_part_of_guid2)); |
| } |
| |
| /* Returns the pointer to the HOB list. */ |
| VOID * |
| EFIAPI |
| get_hob_list( |
| VOID |
| ) |
| { |
| void *hob_list; |
| |
| hob_list = fsp_get_hob_list(); |
| if (hob_list == NULL) |
| die("Call fsp_set_runtime() before this call!\n"); |
| return hob_list; |
| } |
| |
| /* Returns the next instance of a HOB type from the starting HOB. */ |
| VOID * |
| EFIAPI |
| get_next_hob( |
| UINT16 type, |
| CONST VOID *hob_start |
| ) |
| { |
| EFI_PEI_HOB_POINTERS hob; |
| |
| ASSERT(hob_start != NULL); |
| |
| hob.Raw = (UINT8 *)hob_start; |
| |
| /* Parse the HOB list until end of list or matching type is found. */ |
| while (!END_OF_HOB_LIST(hob.Raw)) { |
| if (hob.Header->HobType == type) |
| return hob.Raw; |
| if (GET_HOB_LENGTH(hob.Raw) < sizeof(*hob.Header)) |
| break; |
| hob.Raw = GET_NEXT_HOB(hob.Raw); |
| } |
| return NULL; |
| } |
| |
| /* Returns the first instance of a HOB type among the whole HOB list. */ |
| VOID * |
| EFIAPI |
| get_first_hob( |
| UINT16 type |
| ) |
| { |
| VOID *hob_list; |
| |
| hob_list = get_hob_list(); |
| return get_next_hob(type, hob_list); |
| } |
| |
| /* Returns the next instance of the matched GUID HOB from the starting HOB. */ |
| VOID * |
| EFIAPI |
| get_next_guid_hob( |
| CONST EFI_GUID * guid, |
| CONST VOID *hob_start |
| ) |
| { |
| EFI_PEI_HOB_POINTERS hob; |
| |
| hob.Raw = (UINT8 *)hob_start; |
| while ((hob.Raw = get_next_hob(EFI_HOB_TYPE_GUID_EXTENSION, hob.Raw)) |
| != NULL) { |
| if (compare_guid(guid, &hob.Guid->Name)) |
| break; |
| hob.Raw = GET_NEXT_HOB(hob.Raw); |
| } |
| return hob.Raw; |
| } |
| |
| /* |
| * Returns the first instance of the matched GUID HOB among the whole HOB list. |
| */ |
| VOID * |
| EFIAPI |
| get_first_guid_hob( |
| CONST EFI_GUID * guid |
| ) |
| { |
| return get_next_guid_hob(guid, get_hob_list()); |
| } |
| |
| /* |
| * Returns the next instance of the matching resource HOB from the starting HOB. |
| */ |
| void *get_next_resource_hob(const EFI_GUID *guid, const void *hob_start) |
| { |
| EFI_PEI_HOB_POINTERS hob; |
| |
| hob.Raw = (UINT8 *)hob_start; |
| while ((hob.Raw = get_next_hob(EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, |
| hob.Raw)) != NULL) { |
| if (compare_guid(guid, &hob.ResourceDescriptor->Owner)) |
| break; |
| hob.Raw = GET_NEXT_HOB(hob.Raw); |
| } |
| return hob.Raw; |
| } |
| |
| /* |
| * Returns the first instance of the matching resource HOB among the whole HOB |
| * list. |
| */ |
| void *get_first_resource_hob(const EFI_GUID *guid) |
| { |
| return get_next_resource_hob(guid, get_hob_list()); |
| } |
| |
| static void print_hob_mem_attributes(void *hob_ptr) |
| { |
| EFI_HOB_MEMORY_ALLOCATION *hob_memory_ptr = |
| (EFI_HOB_MEMORY_ALLOCATION *)hob_ptr; |
| EFI_MEMORY_TYPE hob_mem_type = |
| hob_memory_ptr->AllocDescriptor.MemoryType; |
| u64 hob_mem_addr = hob_memory_ptr->AllocDescriptor.MemoryBaseAddress; |
| u64 hob_mem_length = hob_memory_ptr->AllocDescriptor.MemoryLength; |
| const char *hob_mem_type_names[15]; |
| |
| hob_mem_type_names[0] = "EfiReservedMemoryType"; |
| hob_mem_type_names[1] = "EfiLoaderCode"; |
| hob_mem_type_names[2] = "EfiLoaderData"; |
| hob_mem_type_names[3] = "EfiBootServicesCode"; |
| hob_mem_type_names[4] = "EfiBootServicesData"; |
| hob_mem_type_names[5] = "EfiRuntimeServicesCode"; |
| hob_mem_type_names[6] = "EfiRuntimeServicesData"; |
| hob_mem_type_names[7] = "EfiConventionalMemory"; |
| hob_mem_type_names[8] = "EfiUnusableMemory"; |
| hob_mem_type_names[9] = "EfiACPIReclaimMemory"; |
| hob_mem_type_names[10] = "EfiACPIMemoryNVS"; |
| hob_mem_type_names[11] = "EfiMemoryMappedIO"; |
| hob_mem_type_names[12] = "EfiMemoryMappedIOPortSpace"; |
| hob_mem_type_names[13] = "EfiPalCode"; |
| hob_mem_type_names[14] = "EfiMaxMemoryType"; |
| |
| printk(BIOS_SPEW, " Memory type %s (0x%x)\n", |
| hob_mem_type_names[(u32)hob_mem_type], |
| (u32)hob_mem_type); |
| printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n", |
| (unsigned long)hob_mem_addr, |
| (unsigned long)hob_mem_length); |
| } |
| |
| static void print_hob_resource_attributes(void *hob_ptr) |
| { |
| EFI_HOB_RESOURCE_DESCRIPTOR *hob_resource_ptr = |
| (EFI_HOB_RESOURCE_DESCRIPTOR *)hob_ptr; |
| u32 hob_res_type = hob_resource_ptr->ResourceType; |
| u32 hob_res_attr = hob_resource_ptr->ResourceAttribute; |
| u64 hob_res_addr = hob_resource_ptr->PhysicalStart; |
| u64 hob_res_length = hob_resource_ptr->ResourceLength; |
| const char *hob_res_type_str = NULL; |
| |
| /* HOB Resource Types */ |
| switch (hob_res_type) { |
| case EFI_RESOURCE_SYSTEM_MEMORY: |
| hob_res_type_str = "EFI_RESOURCE_SYSTEM_MEMORY"; |
| break; |
| case EFI_RESOURCE_MEMORY_MAPPED_IO: |
| hob_res_type_str = "EFI_RESOURCE_MEMORY_MAPPED_IO"; |
| break; |
| case EFI_RESOURCE_IO: |
| hob_res_type_str = "EFI_RESOURCE_IO"; |
| break; |
| case EFI_RESOURCE_FIRMWARE_DEVICE: |
| hob_res_type_str = "EFI_RESOURCE_FIRMWARE_DEVICE"; |
| break; |
| case EFI_RESOURCE_MEMORY_MAPPED_IO_PORT: |
| hob_res_type_str = "EFI_RESOURCE_MEMORY_MAPPED_IO_PORT"; |
| break; |
| case EFI_RESOURCE_MEMORY_RESERVED: |
| hob_res_type_str = "EFI_RESOURCE_MEMORY_RESERVED"; |
| break; |
| case EFI_RESOURCE_IO_RESERVED: |
| hob_res_type_str = "EFI_RESOURCE_IO_RESERVED"; |
| break; |
| case EFI_RESOURCE_MAX_MEMORY_TYPE: |
| hob_res_type_str = "EFI_RESOURCE_MAX_MEMORY_TYPE"; |
| break; |
| default: |
| hob_res_type_str = "EFI_RESOURCE_UNKNOWN"; |
| break; |
| } |
| |
| printk(BIOS_SPEW, " Resource %s (0x%0x) has attributes 0x%0x\n", |
| hob_res_type_str, hob_res_type, hob_res_attr); |
| printk(BIOS_SPEW, " at location 0x%0lx with length 0x%0lx\n", |
| (unsigned long)hob_res_addr, |
| (unsigned long)hob_res_length); |
| } |
| |
| static const char *get_hob_type_string(void *hob_ptr) |
| { |
| EFI_PEI_HOB_POINTERS hob; |
| const char *hob_type_string = NULL; |
| const EFI_GUID fsp_reserved_guid = |
| FSP_RESERVED_MEMORY_RESOURCE_HOB_GUID; |
| const EFI_GUID mrc_guid = FSP_NON_VOLATILE_STORAGE_HOB_GUID; |
| const EFI_GUID bootldr_tmp_mem_guid = |
| FSP_BOOTLOADER_TEMP_MEMORY_HOB_GUID; |
| const EFI_GUID bootldr_tolum_guid = FSP_BOOTLOADER_TOLUM_HOB_GUID; |
| const EFI_GUID graphics_info_guid = EFI_PEI_GRAPHICS_INFO_HOB_GUID; |
| |
| hob.Header = (EFI_HOB_GENERIC_HEADER *)hob_ptr; |
| switch (hob.Header->HobType) { |
| case EFI_HOB_TYPE_HANDOFF: |
| hob_type_string = "EFI_HOB_TYPE_HANDOFF"; |
| break; |
| case EFI_HOB_TYPE_MEMORY_ALLOCATION: |
| hob_type_string = "EFI_HOB_TYPE_MEMORY_ALLOCATION"; |
| break; |
| case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR: |
| hob_type_string = "EFI_HOB_TYPE_RESOURCE_DESCRIPTOR"; |
| break; |
| case EFI_HOB_TYPE_GUID_EXTENSION: |
| hob_type_string = "EFI_HOB_TYPE_GUID_EXTENSION"; |
| if (compare_guid(&bootldr_tmp_mem_guid, &hob.Guid->Name)) |
| hob_type_string = "FSP_BOOTLOADER_TEMP_MEMORY_HOB"; |
| else if (compare_guid(&fsp_reserved_guid, &hob.Guid->Name)) |
| hob_type_string = "FSP_RESERVED_MEMORY_RESOURCE_HOB"; |
| else if (compare_guid(&mrc_guid, &hob.Guid->Name)) |
| hob_type_string = "FSP_NON_VOLATILE_STORAGE_HOB"; |
| else if (compare_guid(&bootldr_tolum_guid, &hob.Guid->Name)) |
| hob_type_string = "FSP_BOOTLOADER_TOLUM_HOB_GUID"; |
| else if (compare_guid(&graphics_info_guid, &hob.Guid->Name)) |
| hob_type_string = "EFI_PEI_GRAPHICS_INFO_HOB_GUID"; |
| break; |
| case EFI_HOB_TYPE_MEMORY_POOL: |
| hob_type_string = "EFI_HOB_TYPE_MEMORY_POOL"; |
| break; |
| case EFI_HOB_TYPE_UNUSED: |
| hob_type_string = "EFI_HOB_TYPE_UNUSED"; |
| break; |
| case EFI_HOB_TYPE_END_OF_HOB_LIST: |
| hob_type_string = "EFI_HOB_TYPE_END_OF_HOB_LIST"; |
| break; |
| default: |
| hob_type_string = "EFI_HOB_TYPE_UNRECOGNIZED"; |
| break; |
| } |
| |
| return hob_type_string; |
| } |
| |
| /* |
| * Print out a structure of all the HOBs |
| * that match a certain type: |
| * Print all types (0x0000) |
| * EFI_HOB_TYPE_HANDOFF (0x0001) |
| * EFI_HOB_TYPE_MEMORY_ALLOCATION (0x0002) |
| * EFI_HOB_TYPE_RESOURCE_DESCRIPTOR (0x0003) |
| * EFI_HOB_TYPE_GUID_EXTENSION (0x0004) |
| * EFI_HOB_TYPE_MEMORY_POOL (0x0007) |
| * EFI_HOB_TYPE_UNUSED (0xFFFE) |
| * EFI_HOB_TYPE_END_OF_HOB_LIST (0xFFFF) |
| */ |
| void print_hob_type_structure(u16 hob_type, void *hob_list_ptr) |
| { |
| u32 *current_hob; |
| u32 *next_hob = 0; |
| u8 last_hob = 0; |
| u32 current_type; |
| const char *current_type_str; |
| |
| current_hob = hob_list_ptr; |
| |
| /* |
| * Print out HOBs of our desired type until |
| * the end of the HOB list |
| */ |
| printk(BIOS_DEBUG, "\n=== FSP HOB Data Structure ===\n"); |
| printk(BIOS_DEBUG, "0x%p: hob_list_ptr\n", hob_list_ptr); |
| do { |
| EFI_HOB_GENERIC_HEADER *current_header_ptr = |
| (EFI_HOB_GENERIC_HEADER *)current_hob; |
| |
| /* Get the type of this HOB */ |
| current_type = current_header_ptr->HobType; |
| current_type_str = get_hob_type_string(current_hob); |
| |
| if (current_type == hob_type || hob_type == 0x0000) { |
| printk(BIOS_DEBUG, "HOB 0x%0x is an %s (type 0x%0x)\n", |
| (u32)current_hob, current_type_str, |
| current_type); |
| switch (current_type) { |
| case EFI_HOB_TYPE_MEMORY_ALLOCATION: |
| print_hob_mem_attributes(current_hob); |
| break; |
| case EFI_HOB_TYPE_RESOURCE_DESCRIPTOR: |
| print_hob_resource_attributes(current_hob); |
| break; |
| } |
| } |
| |
| /* Check for end of HOB list */ |
| last_hob = END_OF_HOB_LIST(current_hob); |
| if (!last_hob) { |
| /* Get next HOB pointer */ |
| next_hob = GET_NEXT_HOB(current_hob); |
| |
| /* Start on next HOB */ |
| current_hob = next_hob; |
| } |
| } while (!last_hob); |
| printk(BIOS_DEBUG, "=== End of FSP HOB Data Structure ===\n\n"); |
| } |
| |
| #if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE) |
| /* |
| * Save the FSP memory HOB (mrc data) to the MRC area in CBMEM |
| */ |
| int save_mrc_data(void *hob_start) |
| { |
| u32 *mrc_hob; |
| u32 *mrc_hob_data; |
| u32 mrc_hob_size; |
| struct mrc_data_container *mrc_data; |
| int output_len; |
| const EFI_GUID mrc_guid = FSP_NON_VOLATILE_STORAGE_HOB_GUID; |
| |
| mrc_hob = get_next_guid_hob(&mrc_guid, hob_start); |
| if (mrc_hob == NULL) { |
| printk(BIOS_DEBUG, |
| "Memory Configure Data Hob is not present\n"); |
| return 0; |
| } |
| |
| mrc_hob_data = GET_GUID_HOB_DATA(mrc_hob); |
| mrc_hob_size = (u32) GET_HOB_LENGTH(mrc_hob); |
| |
| printk(BIOS_DEBUG, "Memory Configure Data Hob at %p (size = 0x%x).\n", |
| (void *)mrc_hob_data, mrc_hob_size); |
| |
| output_len = ALIGN(mrc_hob_size, 16); |
| |
| /* Save the MRC S3/fast boot/ADR restore data to cbmem */ |
| mrc_data = cbmem_add(CBMEM_ID_MRCDATA, |
| output_len + sizeof(struct mrc_data_container)); |
| |
| /* Just return if there was a problem with getting CBMEM */ |
| if (mrc_data == NULL) { |
| printk(BIOS_WARNING, |
| "CBMEM was not available to save the fast boot cache data.\n"); |
| return 0; |
| } |
| |
| printk(BIOS_DEBUG, |
| "Copy FSP MRC DATA to HOB (source addr %p, dest addr %p, %u bytes)\n", |
| (void *)mrc_hob_data, mrc_data, output_len); |
| |
| mrc_data->mrc_signature = MRC_DATA_SIGNATURE; |
| mrc_data->mrc_data_size = output_len; |
| mrc_data->reserved = 0; |
| memcpy(mrc_data->mrc_data, (const void *)mrc_hob_data, mrc_hob_size); |
| |
| /* Zero the unused space in aligned buffer. */ |
| if (output_len > mrc_hob_size) |
| memset((mrc_data->mrc_data + mrc_hob_size), 0, |
| output_len - mrc_hob_size); |
| |
| mrc_data->mrc_checksum = compute_ip_checksum(mrc_data->mrc_data, |
| mrc_data->mrc_data_size); |
| |
| #if IS_ENABLED(CONFIG_DISPLAY_FAST_BOOT_DATA) |
| printk(BIOS_SPEW, "Fast boot data (includes align and checksum):\n"); |
| hexdump32(BIOS_SPEW, (void *)mrc_data->mrc_data, output_len); |
| #endif |
| return 1; |
| } |
| |
| void __attribute__ ((weak)) update_mrc_cache(void *unused) |
| { |
| printk(BIOS_ERR, "Add routine %s to save the MRC data.\n", __func__); |
| } |
| #endif /* CONFIG_ENABLE_MRC_CACHE */ |
| |
| #if ENV_RAMSTAGE |
| |
| static void find_fsp_hob_update_mrc(void *unused) |
| { |
| void *hob_list_ptr; |
| |
| /* 0x0000: Print all types */ |
| hob_list_ptr = get_hob_list(); |
| #if IS_ENABLED(CONFIG_DISPLAY_HOBS) |
| print_hob_type_structure(0x000, hob_list_ptr); |
| #endif |
| |
| #if IS_ENABLED(CONFIG_ENABLE_MRC_CACHE) |
| if (save_mrc_data(hob_list_ptr)) |
| update_mrc_cache(NULL); |
| else |
| printk(BIOS_DEBUG, "Not updating MRC data in flash.\n"); |
| #endif |
| } |
| |
| /* Update the MRC/fast boot cache as part of the late table writing stage */ |
| BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, |
| find_fsp_hob_update_mrc, NULL); |
| |
| #endif /* ENV_RAMSTAGE */ |