131d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* Copyright 2010 The Chromium OS Authors. All rights reserved. 231d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson * Use of this source code is governed by a BSD-style license that can be 331d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson * found in the LICENSE file. 431d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson * 531d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson * Constants describing the kernel blob content. 631d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson */ 7f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson#ifndef VBOOT_REFERENCE_KERNEL_BLOB_H_ 8f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson#define VBOOT_REFERENCE_KERNEL_BLOB_H_ 9f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson 1031d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* Maximum kernel command-line size */ 11f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson#define CROS_CONFIG_SIZE 4096 12f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson 1331d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* Size of the x86 zeropage table */ 14f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson#define CROS_PARAMS_SIZE 4096 15f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson 1631d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* Alignment of various chunks within the kernel blob */ 17f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson#define CROS_ALIGN 4096 18f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson 1931d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* Sentinel RAM address indicating that no entry address is specified */ 20036922ed8a2a7f2b7de4d5d8e0fc8aff072dce3dChe-Liang Chiou#define CROS_NO_ENTRY_ADDR (~0) 21036922ed8a2a7f2b7de4d5d8e0fc8aff072dce3dChe-Liang Chiou 2231d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* RAM address where the 32-bit kernel expects to be started */ 23f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson#define CROS_32BIT_ENTRY_ADDR 0x100000 24f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson 2531d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* Simplified version of x86 kernel e820 memory map entries */ 26475bf447ccab91e11ddfc3445606d7debb3c71edChe-Liang Chiou#define E820_ENTRY_MAX 128 27475bf447ccab91e11ddfc3445606d7debb3c71edChe-Liang Chiou#define E820_TYPE_RAM 1 28475bf447ccab91e11ddfc3445606d7debb3c71edChe-Liang Chiou#define E820_TYPE_RESERVED 2 29475bf447ccab91e11ddfc3445606d7debb3c71edChe-Liang Chiou 30475bf447ccab91e11ddfc3445606d7debb3c71edChe-Liang Chioustruct linux_kernel_e820entry { 3131d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint64_t start_addr; 3231d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint64_t segment_size; 3331d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint32_t segment_type; 34f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson} __attribute__ ((packed)); 35f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson 3631d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson/* Simplified version of the x86 kernel zeropage table */ 3731d95c2386df8d3d5ec619a077960645d052fa38Bill Richardsonstruct linux_kernel_params { 3831d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t pad0[0x1e8 - 0x0]; 3931d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t n_e820_entry; /* 1e8 */ 4031d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t pad1[0x1f1 - 0x1e9]; 4131d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t setup_sects; /* 1f1 */ 4231d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t pad2[0x1fe - 0x1f2]; 4331d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint16_t boot_flag; /* 1fe */ 4431d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint16_t jump; /* 200 */ 4531d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint32_t header; /* 202 */ 4631d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint16_t version; /* 206 */ 4731d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t pad3[0x210 - 0x208]; 4831d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t type_of_loader; /* 210 */ 4931d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t pad4[0x218 - 0x211]; 5031d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint32_t ramdisk_image; /* 218 */ 5131d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint32_t ramdisk_size; /* 21c */ 5231d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t pad5[0x228 - 0x220]; 5331d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint32_t cmd_line_ptr; /* 228 */ 5431d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint32_t ramdisk_max; /* 22c */ 5531d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint32_t kernel_alignment; /* 230 */ 5631d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t relocatable_kernel; /* 234 */ 5731d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t min_alignment; /* 235 */ 5831d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson uint8_t pad6[0x2d0 - 0x236]; 59779796f57e1e0236ea502248ede2cbea986fca21Bill Richardson struct linux_kernel_e820entry 60779796f57e1e0236ea502248ede2cbea986fca21Bill Richardson e820_entries[E820_ENTRY_MAX]; /* 2d0-cd0 */ 6131d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson} __attribute__ ((packed)); 62f5db4b86fa5569285dfc8373fd8977e1998b8066Bill Richardson 6331d95c2386df8d3d5ec619a077960645d052fa38Bill Richardson#endif /* VBOOT_REFERENCE_KERNEL_BLOB_H_ */ 64