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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef VBOOT_COMMON_H
#define VBOOT_COMMON_H
#include <stdint.h>
struct vboot_region {
uintptr_t offset_addr;
int32_t size;
};
/* The FW areas consist of multiple components. At the beginning of
* each area is the number of total compoments as well as the size and
* offset for each component. One needs to caculate the total size of the
* signed firmware region based off of the embedded metadata. */
struct vboot_component_entry {
uint32_t offset;
uint32_t size;
} __attribute__((packed));
struct vboot_components {
uint32_t num_components;
struct vboot_component_entry entries[0];
} __attribute__((packed));
void vboot_locate_region(const char *name, struct vboot_region *region);
struct vboot_components *vboot_locate_components(struct vboot_region *region);
/*
* This is a dual purpose routine. If dest is non-NULL the region at
* offset_addr will be read into the area pointed to by dest. If dest
* is NULL,the region will be mapped to a memory location. NULL is
* returned on error else the location of the requested region.
*/
void *vboot_get_region(uintptr_t offset_addr, size_t size, void *dest);
#endif /* VBOOT_COMMON_H */
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