Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8035d3ea78c2a61a9738c7857742370e0aa74d5c
Commit: 8035d3ea78c2a61a9738c7857742370e0aa74d5c
Parent: 6a50a664ca0cfd2a487525f10cec3ff4d570b5e8
Author: Vivek Goyal <[EMAIL PROTECTED]>
AuthorDate: Wed May 2 19:27:08 2007 +0200
Committer: Andi Kleen <[EMAIL PROTECTED]>
CommitDate: Wed May 2 19:27:08 2007 +0200
[PATCH] x86-64: Extend bzImage protocol for relocatable bzImage
o Extend the bzImage protocol (same as i386) to allow bzImage loaders to
load the protected mode kernel at non-1MB address. Now protected mode
component is relocatable and can be loaded at non-1MB addresses.
o As of today kdump uses it to run a second kernel from a reserved memory
area.
Signed-off-by: Vivek Goyal <[EMAIL PROTECTED]>
Signed-off-by: Vivek Goyal <[EMAIL PROTECTED]>
Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
---
arch/x86_64/boot/setup.S | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/arch/x86_64/boot/setup.S b/arch/x86_64/boot/setup.S
index 770940c..deb3573 100644
--- a/arch/x86_64/boot/setup.S
+++ b/arch/x86_64/boot/setup.S
@@ -80,7 +80,7 @@ start:
# This is the setup header, and it must start at %cs:2 (old 0x9020:2)
.ascii "HdrS" # header signature
- .word 0x0204 # header version number (>= 0x0105)
+ .word 0x0205 # header version number (>= 0x0105)
# or else old loadlin-1.5 will fail)
realmode_swtch: .word 0, 0 # default_switch, SETUPSEG
start_sys_seg: .word SYSSEG
@@ -155,7 +155,16 @@ cmd_line_ptr: .long 0 # (Header
version 0x0202 or later)
# low memory 0x10000 or higher.
ramdisk_max: .long 0xffffffff
-
+kernel_alignment: .long 0x200000 # physical addr alignment required for
+ # protected mode relocatable kernel
+#ifdef CONFIG_RELOCATABLE
+relocatable_kernel: .byte 1
+#else
+relocatable_kernel: .byte 0
+#endif
+pad2: .byte 0
+pad3: .word 0
+
trampoline: call start_of_setup
.align 16
# The offset at this point is 0x240
-
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