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| 1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| 2 * Use of this source code is governed by a BSD-style license that can be | 2 * Use of this source code is governed by a BSD-style license that can be |
| 3 * found in the LICENSE file. | 3 * found in the LICENSE file. |
| 4 * | 4 * |
| 5 * High-level firmware API for loading and verifying kernel. | 5 * High-level firmware API for loading and verifying kernel. |
| 6 * (Firmware Portion) | 6 * (Firmware Portion) |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 #ifndef VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ | 9 #ifndef VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ |
| 10 #define VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ | 10 #define VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ |
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| 31 * device */ | 31 * device */ |
| 32 void *kernel_buffer; /* Destination buffer for kernel | 32 void *kernel_buffer; /* Destination buffer for kernel |
| 33 * (normally at 0x100000) */ | 33 * (normally at 0x100000) */ |
| 34 uint64_t kernel_buffer_size; /* Size of kernel buffer in bytes */ | 34 uint64_t kernel_buffer_size; /* Size of kernel buffer in bytes */ |
| 35 uint8_t boot_mode; /* Boot mode */ | 35 uint8_t boot_mode; /* Boot mode */ |
| 36 | 36 |
| 37 /* Outputs from LoadKernel(); valid only if LoadKernel() returns | 37 /* Outputs from LoadKernel(); valid only if LoadKernel() returns |
| 38 * LOAD_KERNEL_SUCCESS */ | 38 * LOAD_KERNEL_SUCCESS */ |
| 39 uint64_t partition_number; /* Partition number to boot on current device | 39 uint64_t partition_number; /* Partition number to boot on current device |
| 40 * (1...M) */ | 40 * (1...M) */ |
| 41 void *bootloader_start; /* Start of bootloader image */ | 41 uint64_t bootloader_address; /* Address of bootloader image in RAM */ |
| 42 uint64_t bootloader_size; /* Size of bootloader image in bytes */ | 42 uint64_t bootloader_size; /* Size of bootloader image in bytes */ |
| 43 } LoadKernelParams; | 43 } LoadKernelParams; |
| 44 | 44 |
| 45 int LoadKernel(LoadKernelParams* params); | 45 int LoadKernel(LoadKernelParams* params); |
| 46 /* Attempts to load the kernel from the current device. | 46 /* Attempts to load the kernel from the current device. |
| 47 * | 47 * |
| 48 * Returns LOAD_KERNEL_SUCCESS if successful, error code on failure. */ | 48 * Returns LOAD_KERNEL_SUCCESS if successful, error code on failure. */ |
| 49 | 49 |
| 50 | 50 |
| 51 typedef struct KernelBootloaderOptions { | 51 typedef struct KernelBootloaderOptions { |
| 52 /* The bootloader is loaded using the EFI LoadImage() and StartImage() | 52 /* The bootloader is loaded using the EFI LoadImage() and StartImage() |
| 53 * calls. Pass this struct via loaded_image->load_options. */ | 53 * calls. Pass this struct via loaded_image->load_options. */ |
| 54 uint64_t drive_number; /* Drive number of boot device (0...N) */ | 54 uint64_t drive_number; /* Drive number of boot device (0...N) */ |
| 55 uint64_t partition_number; /* Partition number, as returned from | 55 uint64_t partition_number; /* Partition number, as returned from |
| 56 * LoadKernel() in | 56 * LoadKernel() in |
| 57 * LoadKernelParams.partition_number */ | 57 * LoadKernelParams.partition_number */ |
| 58 uint64_t original_address; /* Absolute bootloader start adddress, | 58 uint64_t original_address; /* Absolute bootloader start adddress, |
| 59 * as returned from LoadKernel() in | 59 * as returned from LoadKernel() in |
| 60 * LoadKernelParams.bootloader_start */ | 60 * LoadKernelParams.bootloader_start */ |
| 61 } KernelBootloaderOptions; | 61 } KernelBootloaderOptions; |
| 62 | 62 |
| 63 | 63 |
| 64 #endif /* VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ */ | 64 #endif /* VBOOT_REFERENCE_LOAD_KERNEL_FW_H_ */ |
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