| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2015 Google Inc. |
| * |
| * 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 <assets.h> |
| #include <boot_device.h> |
| #include <cbfs.h> |
| #include <console/console.h> |
| #include <rules.h> |
| #include <stdlib.h> |
| |
| #define DEFAULT_CBFS_PROVIDER_PRESENT \ |
| (!ENV_VERSTAGE || (ENV_VERSTAGE && !CONFIG_RETURN_FROM_VERSTAGE)) |
| |
| #if DEFAULT_CBFS_PROVIDER_PRESENT |
| static int cbfs_boot_asset_locate(struct asset *asset) |
| { |
| return cbfs_boot_locate(&asset->rdev, asset->name, NULL); |
| } |
| |
| static const struct asset_provider cbfs_default_provider = { |
| .name = "CBFS", |
| .locate = cbfs_boot_asset_locate, |
| }; |
| #endif |
| |
| extern const struct asset_provider vboot_provider; |
| |
| static const struct asset_provider *providers[] = { |
| #if CONFIG_VBOOT_VERIFY_FIRMWARE |
| &vboot_provider, |
| #endif |
| #if DEFAULT_CBFS_PROVIDER_PRESENT |
| &cbfs_default_provider, |
| #endif |
| }; |
| |
| int asset_locate(struct asset *asset) |
| { |
| int i; |
| |
| boot_device_init(); |
| |
| for (i = 0; i < ARRAY_SIZE(providers); i++) { |
| /* Default provider state is active. */ |
| int ret = 1; |
| const struct asset_provider *ops; |
| |
| ops = providers[i]; |
| |
| if (ops->is_active != NULL) |
| ret = ops->is_active(asset); |
| |
| if (ret == 0) { |
| printk(BIOS_DEBUG, "%s provider inactive.\n", |
| ops->name); |
| continue; |
| } else if (ret < 0) { |
| printk(BIOS_DEBUG, "%s provider failure.\n", |
| ops->name); |
| continue; |
| } |
| |
| printk(BIOS_DEBUG, "%s provider active.\n", ops->name); |
| |
| if (ops->locate(asset)) |
| continue; |
| |
| printk(BIOS_DEBUG, "'%s' located at offset: %zx size: %zx\n", |
| asset->name, region_device_offset(&asset->rdev), |
| region_device_sz(&asset->rdev)); |
| |
| return 0; |
| } |
| |
| return -1; |
| } |