| Bill Richardson | f5db4b8 | 2010-05-27 11:15:14 -0700 | [diff] [blame] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | // |
| 5 | // Constants describing the kernel blob content. |
| 6 | |
| 7 | #ifndef VBOOT_REFERENCE_KERNEL_BLOB_H_ |
| 8 | #define VBOOT_REFERENCE_KERNEL_BLOB_H_ |
| 9 | |
| 10 | |
| 11 | // Maximum kernel command-line size |
| 12 | #define CROS_CONFIG_SIZE 4096 |
| 13 | |
| 14 | // Size of the x86 zeropage table |
| 15 | #define CROS_PARAMS_SIZE 4096 |
| 16 | |
| 17 | // Alignment of various chunks within the kernel blob |
| 18 | #define CROS_ALIGN 4096 |
| 19 | |
| 20 | // RAM address where the 32-bit kernel expects to be started |
| 21 | #define CROS_32BIT_ENTRY_ADDR 0x100000 |
| 22 | |
| 23 | // Simplified version of the vmlinuz file header |
| 24 | struct linux_kernel_header |
| 25 | { |
| 26 | uint8_t pad0[0x01f1 - 0x0]; |
| 27 | uint8_t setup_sects; // 1f1 |
| 28 | uint8_t pad1[0x0230 - 0x1f2]; |
| 29 | } __attribute__ ((packed)); |
| 30 | |
| 31 | |
| 32 | // Simplified version of the x86 kernel zeropage table |
| 33 | struct linux_kernel_params |
| 34 | { |
| 35 | uint8_t pad0[0x01f1 - 0x0]; |
| 36 | uint8_t setup_sects; // 1f1 |
| 37 | uint8_t pad1[0x1fe - 0x1f2]; |
| 38 | uint16_t boot_flag; // 1fe |
| 39 | uint8_t pad2[0x210 - 0x200]; |
| 40 | uint8_t type_of_loader; // 210 |
| 41 | uint8_t pad3[0x218 - 0x211]; |
| 42 | uint32_t ramdisk_image; // 218 |
| 43 | uint32_t ramdisk_size; // 21c |
| 44 | uint8_t pad4[0x228 - 0x220]; |
| 45 | uint32_t cmd_line_ptr; // 228 |
| 46 | uint8_t pad5[0x0cd0 - 0x22c]; |
| 47 | } __attribute__ ((packed)); |
| 48 | |
| 49 | |
| 50 | #endif // VBOOT_REFERENCE_KERNEL_BLOB_H_ |