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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 The ChromiumOS Authors. All rights reserved.
*
* 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.
*/
#ifndef __CHROMEOS_VBOOT2_MISC_H__
#define __CHROMEOS_VBOOT2_MISC_H__
#include "../vboot_common.h"
void vboot_fill_handoff(void);
void *vboot_load_stage(int stage_index,
struct region *fw_main,
struct vboot_components *fw_info);
/*
* this is placed at the start of the vboot work buffer. selected_region is used
* for the verstage to return the location of the selected slot. buffer is used
* by the vboot2 core. Keep the struct cpu architecture agnostic as it crosses
* stage boundaries.
*/
struct vb2_working_data {
uint32_t selected_region_offset;
uint32_t selected_region_size;
/* offset of the buffer from the start of this struct */
uint32_t buffer_offset;
uint32_t buffer_size;
};
struct vb2_working_data * const vboot_get_working_data(void);
size_t vb2_working_data_size(void);
void *vboot_get_work_buffer(struct vb2_working_data *wd);
/* Returns 0 on success. < 0 on failure. */
static inline int vb2_get_selected_region(struct vb2_working_data *wd,
struct region_device *rdev)
{
struct region reg = {
.offset = wd->selected_region_offset,
.size = wd->selected_region_size,
};
return vboot_region_device(®, rdev);
}
static inline void vb2_set_selected_region(struct vb2_working_data *wd,
struct region_device *rdev)
{
wd->selected_region_offset = region_device_offset(rdev);
wd->selected_region_size = region_device_sz(rdev);
}
static inline int vboot_is_slot_selected(struct vb2_working_data *wd)
{
return wd->selected_region_size > 0;
}
static inline int vboot_is_readonly_path(struct vb2_working_data *wd)
{
return wd->selected_region_size == 0;
}
#endif /* __CHROMEOS_VBOOT2_MISC_H__ */
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