kernel.git/arch/x86_64/kernel/relocate_kernel.S, branch linux-2.6.19.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-2.6.19.y2006-09-26T08:52:38Z[PATCH] Avoid overwriting the current pgd (V4, x86_64)2006-09-26T08:52:38ZMagnus Damm2006-09-26T08:52:38Zurn:sha1:4bfaaef01a1badb9e8ffb0c0a37cd2379008d21f
kexec: Avoid overwriting the current pgd (V4, x86_64)
This patch upgrades the x86_64-specific kexec code to avoid overwriting the
current pgd. Overwriting the current pgd is bad when CONFIG_CRASH_DUMP is used
to start a secondary kernel that dumps the memory of the previous kernel.
The code introduces a new set of page tables. These tables are used to provide
an executable identity mapping without overwriting the current pgd.
Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>
[PATCH] kexec: x86_64 kexec implementation2005-06-25T23:24:50ZEric W. Biederman2005-06-25T21:58:02Zurn:sha1:5234f5eb04abbbfa306ccfbc2ccbb6e73f515b15
This is the x86_64 implementation of machine kexec. 32bit compatibility
support has been implemented, and machine_kexec has been enhanced to not care
about the changing internal kernel paget table structures.
From: Alexander Nyberg <alexn@dsv.su.se>
build fix
Signed-off-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>