Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2015 Intel Corp. |
| 5 | * (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.) |
| 6 | * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.) |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | */ |
| 13 | |
| 14 | #include <arch/io.h> |
| 15 | #include <cbfs.h> |
| 16 | #include <console/console.h> |
| 17 | #include <fsp/util.h> |
| 18 | #include <lib.h> |
| 19 | #include <memrange.h> |
Aaron Durbin | a33c6d7 | 2016-03-31 12:48:30 -0500 | [diff] [blame] | 20 | #include <program_loading.h> |
Andrey Petrov | 901e43c | 2016-06-22 19:22:30 -0700 | [diff] [blame] | 21 | #include <reset.h> |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 22 | #include <string.h> |
| 23 | |
| 24 | static bool looks_like_fsp_header(const uint8_t *raw_hdr) |
| 25 | { |
| 26 | if (memcmp(raw_hdr, FSP_HDR_SIGNATURE, 4)) { |
| 27 | printk(BIOS_ALERT, "Did not find a valid FSP signature\n"); |
| 28 | return false; |
| 29 | } |
| 30 | |
| 31 | if (read32(raw_hdr + 4) != FSP_HDR_LEN) { |
| 32 | printk(BIOS_ALERT, "FSP header has invalid length\n"); |
| 33 | return false; |
| 34 | } |
| 35 | |
| 36 | return true; |
| 37 | } |
| 38 | |
| 39 | enum cb_err fsp_identify(struct fsp_header *hdr, const void *fsp_blob) |
| 40 | { |
| 41 | const uint8_t *raw_hdr = fsp_blob; |
| 42 | |
| 43 | if (!looks_like_fsp_header(raw_hdr)) |
| 44 | return CB_ERR; |
| 45 | |
Andrey Petrov | d5a6eb4 | 2016-05-04 17:30:16 -0700 | [diff] [blame] | 46 | hdr->spec_version = read8(raw_hdr + 10); |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 47 | hdr->revision = read8(raw_hdr + 11); |
| 48 | hdr->fsp_revision = read32(raw_hdr + 12); |
| 49 | memcpy(hdr->image_id, raw_hdr + 16, ARRAY_SIZE(hdr->image_id)); |
| 50 | hdr->image_id[ARRAY_SIZE(hdr->image_id) - 1] = '\0'; |
| 51 | hdr->image_size = read32(raw_hdr + 24); |
| 52 | hdr->image_base = read32(raw_hdr + 28); |
Andrey Petrov | d5a6eb4 | 2016-05-04 17:30:16 -0700 | [diff] [blame] | 53 | hdr->image_attribute = read16(raw_hdr + 32); |
| 54 | hdr->component_attribute = read16(raw_hdr + 34); |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 55 | hdr->cfg_region_offset = read32(raw_hdr + 36); |
| 56 | hdr->cfg_region_size = read32(raw_hdr + 40); |
| 57 | hdr->notify_phase_entry_offset = read32(raw_hdr + 56); |
| 58 | hdr->memory_init_entry_offset = read32(raw_hdr + 60); |
| 59 | hdr->silicon_init_entry_offset = read32(raw_hdr + 68); |
| 60 | |
| 61 | return CB_SUCCESS; |
| 62 | } |
| 63 | |
| 64 | void fsp_print_header_info(const struct fsp_header *hdr) |
| 65 | { |
Andrey Petrov | d5a6eb4 | 2016-05-04 17:30:16 -0700 | [diff] [blame] | 66 | union { |
| 67 | uint32_t val; |
| 68 | struct { |
| 69 | uint8_t bld_num; |
| 70 | uint8_t revision; |
| 71 | uint8_t minor; |
| 72 | uint8_t major; |
| 73 | } rev; |
| 74 | } revision; |
| 75 | |
| 76 | revision.val = hdr->fsp_revision; |
| 77 | |
| 78 | printk(BIOS_DEBUG, "Spec version: v%u.%u\n", (hdr->spec_version >> 4 ), |
| 79 | hdr->spec_version & 0xf); |
| 80 | printk(BIOS_DEBUG, "Revision: %u.%u.%u, Build Number %u\n", |
| 81 | revision.rev.major, |
| 82 | revision.rev.minor, |
| 83 | revision.rev.revision, |
| 84 | revision.rev.bld_num); |
| 85 | printk(BIOS_DEBUG, "Type: %s/%s\n", |
| 86 | (hdr->component_attribute & 1 ) ? "release" : "debug", |
| 87 | (hdr->component_attribute & 2 ) ? "test" : "official"); |
| 88 | printk(BIOS_DEBUG, "image ID: %s, base 0x%lx + 0x%zx\n", |
| 89 | hdr->image_id, hdr->image_base, hdr->image_size); |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 90 | printk(BIOS_DEBUG, "\tConfig region 0x%zx + 0x%zx\n", |
| 91 | hdr->cfg_region_offset, hdr->cfg_region_size); |
| 92 | |
Andrey Petrov | d5a6eb4 | 2016-05-04 17:30:16 -0700 | [diff] [blame] | 93 | if ((hdr->component_attribute >> 12) == FSP_HDR_ATTRIB_FSPM) { |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 94 | printk(BIOS_DEBUG, "\tMemory init offset 0x%zx\n", |
| 95 | hdr->memory_init_entry_offset); |
| 96 | } |
| 97 | |
Andrey Petrov | d5a6eb4 | 2016-05-04 17:30:16 -0700 | [diff] [blame] | 98 | if ((hdr->component_attribute >> 12) == FSP_HDR_ATTRIB_FSPS) { |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 99 | printk(BIOS_DEBUG, "\tSilicon init offset 0x%zx\n", |
| 100 | hdr->silicon_init_entry_offset); |
| 101 | printk(BIOS_DEBUG, "\tNotify phase offset 0x%zx\n", |
| 102 | hdr->notify_phase_entry_offset); |
| 103 | } |
| 104 | |
| 105 | } |
| 106 | |
Aaron Durbin | 9b28f002 | 2016-03-08 11:20:53 -0600 | [diff] [blame] | 107 | /* TODO: this won't work for SoC's that need to XIP certain modules. */ |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 108 | enum cb_err fsp_load_binary(struct fsp_header *hdr, |
| 109 | const char *name, |
| 110 | struct range_entry *range) |
| 111 | { |
| 112 | struct cbfsf file_desc; |
| 113 | struct region_device file_data; |
| 114 | void *membase; |
| 115 | |
| 116 | if (cbfs_boot_locate(&file_desc, name, NULL)) { |
| 117 | printk(BIOS_ERR, "Could not locate %s in CBFS\n", name); |
| 118 | return CB_ERR; |
| 119 | } |
| 120 | |
| 121 | cbfs_file_data(&file_data, &file_desc); |
| 122 | |
| 123 | /* Map just enough of the file to be able to parse the header. */ |
| 124 | membase = rdev_mmap(&file_data, FSP_HDR_OFFSET, FSP_HDR_LEN); |
Aaron Durbin | 40672be | 2016-03-08 11:01:17 -0600 | [diff] [blame] | 125 | |
| 126 | if (membase == NULL) { |
| 127 | printk(BIOS_ERR, "Could not mmap() '%s' FSP header.\n", name); |
| 128 | return CB_ERR; |
| 129 | } |
| 130 | |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 131 | if (fsp_identify(hdr, membase) != CB_SUCCESS) { |
Aaron Durbin | 40672be | 2016-03-08 11:01:17 -0600 | [diff] [blame] | 132 | rdev_munmap(&file_data, membase); |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 133 | printk(BIOS_ERR, "%s did not have a valid FSP header\n", name); |
| 134 | return CB_ERR; |
| 135 | } |
| 136 | |
Aaron Durbin | 40672be | 2016-03-08 11:01:17 -0600 | [diff] [blame] | 137 | rdev_munmap(&file_data, membase); |
| 138 | |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 139 | fsp_print_header_info(hdr); |
| 140 | |
| 141 | /* Check if size specified in the header matches the cbfs file size */ |
| 142 | if (region_device_sz(&file_data) < hdr->image_size) { |
| 143 | printk(BIOS_ERR, "%s size bigger than cbfs file.\n", name); |
| 144 | return CB_ERR; |
| 145 | } |
| 146 | |
| 147 | /* Check if the binary load address is within expected range */ |
Aaron Durbin | 9b28f002 | 2016-03-08 11:20:53 -0600 | [diff] [blame] | 148 | /* TODO: this doesn't check the current running program footprint. */ |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 149 | if (range_entry_base(range) > hdr->image_base || |
| 150 | range_entry_end(range) <= hdr->image_base + hdr->image_size) { |
| 151 | printk(BIOS_ERR, "%s is outside of allowed range\n", name); |
| 152 | return CB_ERR; |
| 153 | } |
| 154 | |
| 155 | /* Load binary into memory. */ |
| 156 | if (rdev_readat(&file_data, (void *)hdr->image_base, 0, hdr->image_size) < 0) |
| 157 | return CB_ERR; |
| 158 | |
Aaron Durbin | a33c6d7 | 2016-03-31 12:48:30 -0500 | [diff] [blame] | 159 | /* Signal that FSP component has been loaded. */ |
Aaron Durbin | 096f457 | 2016-03-31 13:49:00 -0500 | [diff] [blame] | 160 | prog_segment_loaded(hdr->image_base, hdr->image_size, SEG_FINAL); |
Aaron Durbin | a33c6d7 | 2016-03-31 12:48:30 -0500 | [diff] [blame] | 161 | |
Andrey Petrov | 9738970 | 2016-02-25 14:15:37 -0800 | [diff] [blame] | 162 | return CB_SUCCESS; |
| 163 | } |
Andrey Petrov | 901e43c | 2016-06-22 19:22:30 -0700 | [diff] [blame] | 164 | |
| 165 | void fsp_handle_reset(enum fsp_status status) |
| 166 | { |
| 167 | switch(status) { |
| 168 | case FSP_STATUS_RESET_REQUIRED_COLD: |
| 169 | hard_reset(); |
| 170 | break; |
| 171 | case FSP_STATUS_RESET_REQUIRED_WARM: |
| 172 | soft_reset(); |
| 173 | break; |
| 174 | case FSP_STATUS_RESET_REQUIRED_GLOBAL_RESET: |
| 175 | global_reset(); |
| 176 | break; |
| 177 | default: |
| 178 | break; |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | bool fsp_reset_requested(enum fsp_status status) |
| 183 | { |
| 184 | return (status >= FSP_STATUS_RESET_REQUIRED_COLD && |
| 185 | status <= FSP_STATUS_RESET_REQUIRED_GLOBAL_RESET); |
| 186 | } |