| /* Copyright 2010 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| * |
| * Constants describing the kernel blob content. |
| */ |
| #ifndef VBOOT_REFERENCE_KERNEL_BLOB_H_ |
| #define VBOOT_REFERENCE_KERNEL_BLOB_H_ |
| |
| /* Linux vmlinuz header signature */ |
| #define VMLINUZ_HEADER_SIG 0x53726448 |
| |
| /* Maximum kernel command-line size */ |
| #define CROS_CONFIG_SIZE 4096 |
| |
| /* Size of the x86 zeropage table */ |
| #define CROS_PARAMS_SIZE 4096 |
| |
| /* Alignment of various chunks within the kernel blob */ |
| #define CROS_ALIGN 4096 |
| |
| /* Sentinel RAM address indicating that no entry address is specified */ |
| #define CROS_NO_ENTRY_ADDR (~0) |
| |
| /* RAM address where the 32-bit kernel expects to be started */ |
| #define CROS_32BIT_ENTRY_ADDR 0x100000 |
| |
| /* Simplified version of x86 kernel e820 memory map entries */ |
| #define E820_ENTRY_MAX 128 |
| #define E820_TYPE_RAM 1 |
| #define E820_TYPE_RESERVED 2 |
| |
| struct linux_kernel_e820entry { |
| uint64_t start_addr; |
| uint64_t segment_size; |
| uint32_t segment_type; |
| } __attribute__ ((packed)); |
| |
| /* Simplified version of the x86 kernel zeropage table */ |
| struct linux_kernel_params { |
| uint8_t pad0[0x1e8 - 0x0]; |
| uint8_t n_e820_entry; /* 1e8 */ |
| uint8_t pad1[0x1f1 - 0x1e9]; |
| uint8_t setup_sects; /* 1f1 */ |
| uint8_t pad2[0x1fe - 0x1f2]; |
| uint16_t boot_flag; /* 1fe */ |
| uint16_t jump; /* 200 */ |
| uint32_t header; /* 202 */ |
| uint16_t version; /* 206 */ |
| uint8_t pad3[0x210 - 0x208]; |
| uint8_t type_of_loader; /* 210 */ |
| uint8_t pad4[0x218 - 0x211]; |
| uint32_t ramdisk_image; /* 218 */ |
| uint32_t ramdisk_size; /* 21c */ |
| uint8_t pad5[0x228 - 0x220]; |
| uint32_t cmd_line_ptr; /* 228 */ |
| uint32_t ramdisk_max; /* 22c */ |
| uint32_t kernel_alignment; /* 230 */ |
| uint8_t relocatable_kernel; /* 234 */ |
| uint8_t min_alignment; /* 235 */ |
| uint8_t pad6[0x2d0 - 0x236]; |
| struct linux_kernel_e820entry |
| e820_entries[E820_ENTRY_MAX]; /* 2d0-cd0 */ |
| } __attribute__ ((packed)); |
| |
| #endif /* VBOOT_REFERENCE_KERNEL_BLOB_H_ */ |