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a8e0f94b94
Change-Id: I5a42ba017974b3d591abc574ef7b9b7c9ac579e8 BUG=chrome-os-partner:1824 TEST=make && make runtests Review URL: http://codereview.chromium.org/6462010
75 lines
3.2 KiB
C
75 lines
3.2 KiB
C
/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* High-level firmware API for loading and verifying kernel.
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* (Firmware Portion)
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*/
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#ifndef VBOOT_REFERENCE_LOAD_KERNEL_FW_H_
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#define VBOOT_REFERENCE_LOAD_KERNEL_FW_H_
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#include "sysincludes.h"
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/* Interface provided by verified boot library to BDS */
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/* Return codes for LoadKernel() */
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#define LOAD_KERNEL_SUCCESS 0 /* Success; good kernel found on device */
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#define LOAD_KERNEL_NOT_FOUND 1 /* No kernel found on device */
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#define LOAD_KERNEL_INVALID 2 /* Only invalid kernels found on device */
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#define LOAD_KERNEL_RECOVERY 3 /* Internal error; reboot to recovery mode */
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#define LOAD_KERNEL_REBOOT 4 /* Internal error; reboot to current mode */
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/* Boot flags for LoadKernel().boot_flags */
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/* Developer switch is on */
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#define BOOT_FLAG_DEVELOPER UINT64_C(0x01)
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/* In recovery mode */
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#define BOOT_FLAG_RECOVERY UINT64_C(0x02)
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/* Skip check of kernel buffer address */
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#define BOOT_FLAG_SKIP_ADDR_CHECK UINT64_C(0x04)
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/* Active main firmware is developer-type, not normal-type or recovery-type. */
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#define BOOT_FLAG_DEV_FIRMWARE UINT64_C(0x08)
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typedef struct LoadKernelParams {
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/* Inputs to LoadKernel() */
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void *header_sign_key_blob; /* Key blob used to sign the kernel header */
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uint64_t bytes_per_lba; /* Bytes per lba sector on current device */
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uint64_t ending_lba; /* Last addressable lba sector on current
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* device */
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void *kernel_buffer; /* Destination buffer for kernel
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* (normally at 0x100000) */
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uint64_t kernel_buffer_size; /* Size of kernel buffer in bytes */
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uint64_t boot_flags; /* Boot flags */
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/* Outputs from LoadKernel(); valid only if LoadKernel() returns
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* LOAD_KERNEL_SUCCESS */
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uint64_t partition_number; /* Partition number to boot on current device
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* (1...M) */
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uint64_t bootloader_address; /* Address of bootloader image in RAM */
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uint64_t bootloader_size; /* Size of bootloader image in bytes */
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uint8_t partition_guid[16]; /* UniquePartitionGuid for boot partition */
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} LoadKernelParams;
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int LoadKernel(LoadKernelParams* params);
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/* Attempts to load the kernel from the current device.
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*
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* Returns LOAD_KERNEL_SUCCESS if successful, error code on failure. */
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typedef struct KernelBootloaderOptions {
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/* The bootloader is loaded using the EFI LoadImage() and StartImage()
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* calls. Pass this struct via loaded_image->load_options. */
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uint64_t drive_number; /* Drive number of boot device (0...N) */
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uint64_t partition_number; /* Partition number, as returned from
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* LoadKernel() in
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* LoadKernelParams.partition_number */
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uint64_t original_address; /* Absolute bootloader start adddress,
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* as returned from LoadKernel() in
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* LoadKernelParams.bootloader_start */
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uint8_t partition_guid[16]; /* UniquePartitionGuid for boot partition */
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} KernelBootloaderOptions;
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#endif /* VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ */
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