Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
boot.h
Go to the documentation of this file.
1 /*
2  * 1. load vmlinuz
3  *
4  * CONFIG_MEMORY_START +-----------------------+
5  * | vmlinuz |
6  * +-----------------------+
7  * 2. decompressed
8  *
9  * CONFIG_MEMORY_START +-----------------------+
10  * | vmlinuz |
11  * +-----------------------+
12  * | |
13  * BOOT_RELOC_ADDR +-----------------------+
14  * | |
15  * KERNEL_DECOMPRESS_ADDR +-----------------------+
16  * | vmlinux |
17  * +-----------------------+
18  *
19  * 3. relocate copy & jump code
20  *
21  * CONFIG_MEMORY_START +-----------------------+
22  * | vmlinuz |
23  * +-----------------------+
24  * | |
25  * BOOT_RELOC_ADDR +-----------------------+
26  * | boot(copy&jump) |
27  * KERNEL_DECOMPRESS_ADDR +-----------------------+
28  * | vmlinux |
29  * +-----------------------+
30  *
31  * 4. relocate decompressed kernel
32  *
33  * CONFIG_MEMORY_START +-----------------------+
34  * | vmlinux |
35  * +-----------------------+
36  * | |
37  * BOOT_RELOC_ADDR +-----------------------+
38  * | boot(copy&jump) |
39  * KERNEL_DECOMPRESS_ADDR +-----------------------+
40  * | |
41  * +-----------------------+
42  *
43  */
44 #ifdef __ASSEMBLY__
45 #define __val(x) x
46 #else
47 #define __val(x) (x)
48 #endif
49 
50 #define DECOMPRESS_OFFSET_BASE __val(0x00900000)
51 #define BOOT_RELOC_SIZE __val(0x00001000)
52 
53 #define KERNEL_EXEC_ADDR __val(CONFIG_MEMORY_START)
54 #define KERNEL_DECOMPRESS_ADDR __val(CONFIG_MEMORY_START + \
55  DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE)
56 #define KERNEL_ENTRY __val(CONFIG_MEMORY_START + 0x1000)
57 
58 #define BOOT_EXEC_ADDR __val(CONFIG_MEMORY_START)
59 #define BOOT_RELOC_ADDR __val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE)
Generated on Thu Jan 10 2013 13:07:22 for Linux Kernel by   doxygen 1.8.2