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SubjectRe: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage
On 5/8/07, Eric W. Biederman <ebiederm@xmission.com> wrote:
> "H. Peter Anvin" <hpa@zytor.com> writes:
> I believe YH is asking how we setup real_mode_data in /sbin/kexec.

pxelinux:

SCREEN_INFO.orig_video_mode = 3
SCREEN_INFO.orig_x = 0
SCREEN_INFO.orig_y = 24
x86_boot_params[] :
0000: 00 18 ff ff 08 00 03 50 8c c8 03 00 8e c0 19 01
0010: 10 00 7c fb fc be 31 00 ac 20 c0 74 09 b4 0e bb
0020: 07 00 cd 10 eb f2 31 c0 cd 16 cd 19 ea f0 ff 00
0030: f0 44 69 72 65 63 74 20 62 6f 6f 74 15 00 10 00

current kexec:
SCREEN_INFO.orig_video_mode = 0
SCREEN_INFO.orig_x = 0
SCREEN_INFO.orig_y = 3
x86_boot_params[] :
0000: 00 03 00 fc 00 00 00 50 8c c8 00 00 8e c0 19 01
0010: 10 00 7c fb fc be 31 00 ac 20 c0 74 09 b4 0e bb
0020: 3f a3 00 16 eb f2 31 c0 cd 16 cd 19 ea f0 ff 00
0030: f0 44 69 72 65 63 74 20 62 6f 6f 74 15 00 20 00

YH
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