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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 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_HANDOFF_H
#define VBOOT_HANDOFF_H
#include <vboot_api.h>
#include <vboot_struct.h>
#include "chromeos.h"
#include "vboot_common.h"
/*
* The vboot handoff structure keeps track of a maximum number of firmware
* components in the verfieid RW area of flash. This is not a restriction on
* the number of components packed in a firmware block. It's only the maximum
* number of parsed firmware components (address and size) included in the
* handoff structure.
*/
#define MAX_PARSED_FW_COMPONENTS 5
struct firmware_component {
uint32_t address;
uint32_t size;
} __attribute__((packed));
/*
* The vboot_handoff structure contains the data to be consumed by downstream
* firmware after firmware selection has been completed. Namely it provides
* vboot shared data as well as the flags from VbInit. As noted above a finite
* number of components are parsed from the verfieid firmare region.
*/
struct vboot_handoff {
VbInitParams init_params;
uint32_t selected_firmware;
struct firmware_component components[MAX_PARSED_FW_COMPONENTS];
char shared_data[VB_SHARED_DATA_MIN_SIZE];
} __attribute__((packed));
#endif /* VBOOT_HANDOFF_H */
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