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61 lines
2.4 KiB
C
61 lines
2.4 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 <stdint.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
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#define LOAD_KERNEL_NOT_FOUND 1
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#define LOAD_KERNEL_INVALID 2
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typedef struct LoadKernelParams {
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/* Inputs to LoadKernel() */
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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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uint8_t in_developer_mode; /* Did device boot in developer mode?
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* 0 = normal or recovery mode
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* 1 = developer mode */
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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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void *bootloader_start; /* Start of bootloader image */
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uint64_t bootloader_size; /* Size of bootloader image in bytes */
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} LoadKernelParams;
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uintn_t 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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} KernelBootloaderOptions;
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#endif /* VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ */
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