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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 18:30:41 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 18:30:41 -0400
commit82782ca77d1bfb32b0334cce40a25b91bd8ec016 (patch)
treed8c73212af80ed9aa314612e2b8b9e6cf74c47f7 /arch/x86/boot/header.S
parentf0d5e12bd42b7173ebbbf59279c867605f859814 (diff)
parent6799687a53a28536fd027ccb644833f66a778925 (diff)
Merge branch 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (46 commits) x86, boot: add new generated files to the appropriate .gitignore files x86, boot: correct the calculation of ZO_INIT_SIZE x86-64: align __PHYSICAL_START, remove __KERNEL_ALIGN x86, boot: correct sanity checks in boot/compressed/misc.c x86: add extension fields for bootloader type and version x86, defconfig: update kernel position parameters x86, defconfig: update to current, no material changes x86: make CONFIG_RELOCATABLE the default x86: default CONFIG_PHYSICAL_START and CONFIG_PHYSICAL_ALIGN to 16 MB x86: document new bzImage fields x86, boot: make kernel_alignment adjustable; new bzImage fields x86, boot: remove dead code from boot/compressed/head_*.S x86, boot: use LOAD_PHYSICAL_ADDR on 64 bits x86, boot: make symbols from the main vmlinux available x86, boot: determine compressed code offset at compile time x86, boot: use appropriate rep string for move and clear x86, boot: zero EFLAGS on 32 bits x86, boot: set up the decompression stack as early as possible x86, boot: straighten out ranges to copy/zero in compressed/head*.S x86, boot: stylistic cleanups for boot/compressed/head_64.S ... Fixed trivial conflict in arch/x86/configs/x86_64_defconfig manually
Diffstat (limited to 'arch/x86/boot/header.S')
-rw-r--r--arch/x86/boot/header.S28
1 files changed, 22 insertions, 6 deletions
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 5d84d1c74e4c..1040f6e8010c 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -22,7 +22,8 @@
22#include <asm/page_types.h> 22#include <asm/page_types.h>
23#include <asm/setup.h> 23#include <asm/setup.h>
24#include "boot.h" 24#include "boot.h"
25#include "offsets.h" 25#include "voffset.h"
26#include "zoffset.h"
26 27
27BOOTSEG = 0x07C0 /* original address of boot-sector */ 28BOOTSEG = 0x07C0 /* original address of boot-sector */
28SYSSEG = 0x1000 /* historical load address >> 4 */ 29SYSSEG = 0x1000 /* historical load address >> 4 */
@@ -115,7 +116,7 @@ _start:
115 # Part 2 of the header, from the old setup.S 116 # Part 2 of the header, from the old setup.S
116 117
117 .ascii "HdrS" # header signature 118 .ascii "HdrS" # header signature
118 .word 0x0209 # header version number (>= 0x0105) 119 .word 0x020a # header version number (>= 0x0105)
119 # or else old loadlin-1.5 will fail) 120 # or else old loadlin-1.5 will fail)
120 .globl realmode_swtch 121 .globl realmode_swtch
121realmode_swtch: .word 0, 0 # default_switch, SETUPSEG 122realmode_swtch: .word 0, 0 # default_switch, SETUPSEG
@@ -168,7 +169,11 @@ heap_end_ptr: .word _end+STACK_SIZE-512
168 # end of setup code can be used by setup 169 # end of setup code can be used by setup
169 # for local heap purposes. 170 # for local heap purposes.
170 171
171pad1: .word 0 172ext_loader_ver:
173 .byte 0 # Extended boot loader version
174ext_loader_type:
175 .byte 0 # Extended boot loader type
176
172cmd_line_ptr: .long 0 # (Header version 0x0202 or later) 177cmd_line_ptr: .long 0 # (Header version 0x0202 or later)
173 # If nonzero, a 32-bit pointer 178 # If nonzero, a 32-bit pointer
174 # to the kernel command line. 179 # to the kernel command line.
@@ -200,7 +205,7 @@ relocatable_kernel: .byte 1
200#else 205#else
201relocatable_kernel: .byte 0 206relocatable_kernel: .byte 0
202#endif 207#endif
203pad2: .byte 0 208min_alignment: .byte MIN_KERNEL_ALIGN_LG2 # minimum alignment
204pad3: .word 0 209pad3: .word 0
205 210
206cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, 211cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line,
@@ -212,13 +217,24 @@ hardware_subarch: .long 0 # subarchitecture, added with 2.07
212 217
213hardware_subarch_data: .quad 0 218hardware_subarch_data: .quad 0
214 219
215payload_offset: .long input_data 220payload_offset: .long ZO_input_data
216payload_length: .long input_data_end-input_data 221payload_length: .long ZO_z_input_len
217 222
218setup_data: .quad 0 # 64-bit physical pointer to 223setup_data: .quad 0 # 64-bit physical pointer to
219 # single linked list of 224 # single linked list of
220 # struct setup_data 225 # struct setup_data
221 226
227pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
228
229#define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset)
230#define VO_INIT_SIZE (VO__end - VO__text)
231#if ZO_INIT_SIZE > VO_INIT_SIZE
232#define INIT_SIZE ZO_INIT_SIZE
233#else
234#define INIT_SIZE VO_INIT_SIZE
235#endif
236init_size: .long INIT_SIZE # kernel initialization size
237
222# End of setup header ##################################################### 238# End of setup header #####################################################
223 239
224 .section ".inittext", "ax" 240 .section ".inittext", "ax"