94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2015 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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*/
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#include <assets.h>
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#include <boot_device.h>
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#include <cbfs.h>
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#include <console/console.h>
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#include <rules.h>
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#include <stdlib.h>
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#define DEFAULT_CBFS_PROVIDER_PRESENT \
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(!ENV_VERSTAGE || (ENV_VERSTAGE && !CONFIG_RETURN_FROM_VERSTAGE))
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#if DEFAULT_CBFS_PROVIDER_PRESENT
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static int cbfs_boot_asset_locate(struct asset *asset)
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{
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return cbfs_boot_locate(&asset->rdev, asset->name, NULL);
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}
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static const struct asset_provider cbfs_default_provider = {
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.name = "CBFS",
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.locate = cbfs_boot_asset_locate,
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};
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#endif
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extern const struct asset_provider vboot_provider;
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static const struct asset_provider *providers[] = {
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#if CONFIG_VBOOT_VERIFY_FIRMWARE
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&vboot_provider,
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#endif
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#if DEFAULT_CBFS_PROVIDER_PRESENT
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&cbfs_default_provider,
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#endif
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};
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int asset_locate(struct asset *asset)
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{
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int i;
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boot_device_init();
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for (i = 0; i < ARRAY_SIZE(providers); i++) {
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/* Default provider state is active. */
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int ret = 1;
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const struct asset_provider *ops;
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ops = providers[i];
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if (ops->is_active != NULL)
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ret = ops->is_active(asset);
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if (ret == 0) {
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printk(BIOS_DEBUG, "%s provider inactive.\n",
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ops->name);
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continue;
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} else if (ret < 0) {
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printk(BIOS_DEBUG, "%s provider failure.\n",
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ops->name);
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continue;
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}
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printk(BIOS_DEBUG, "%s provider active.\n", ops->name);
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if (ops->locate(asset))
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continue;
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printk(BIOS_DEBUG, "'%s' located at offset: %zx size: %zx\n",
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asset->name, region_device_offset(&asset->rdev),
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region_device_sz(&asset->rdev));
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return 0;
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}
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return -1;
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}
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