diff options
Diffstat (limited to 'src/vendorcode/google/chromeos/vboot_handoff.h')
-rw-r--r-- | src/vendorcode/google/chromeos/vboot_handoff.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/vboot_handoff.h b/src/vendorcode/google/chromeos/vboot_handoff.h new file mode 100644 index 0000000000..09c7897f54 --- /dev/null +++ b/src/vendorcode/google/chromeos/vboot_handoff.h @@ -0,0 +1,53 @@ +/* + * 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> + +/* + * 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 */ |