x86: xen, i386: reserve Xen pagetables
authorJeremy Fitzhardinge <jeremy@goop.org>
Thu, 7 May 2009 18:56:44 +0000 (11:56 -0700)
committerIngo Molnar <mingo@elte.hu>
Fri, 8 May 2009 08:49:11 +0000 (10:49 +0200)
commit33df4db04a79660150e1948e3296eeb451ac121b
tree6245453d81b04528cac33b53dea506e6b4e94d83
parent6407df5ca54a511054200a1eb23f78f723ca1de4
x86: xen, i386: reserve Xen pagetables

The Xen pagetables are no longer implicitly reserved as part of the other
i386_start_kernel reservations, so make sure we explicitly reserve them.
This prevents them from being released into the general kernel free page
pool and reused.

[ Impact: fix Xen guest crash ]

Also-Bisected-by: Bryan Donlan <bdonlan@gmail.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Xen-devel <xen-devel@lists.xensource.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <4A032EEC.30509@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/xen/mmu.c