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Avi Kivity 917aa3c5da KVM: VMX: Fix host userspace gsbase corruption 
commit c8770e7ba6 upstream.

We now use load_gs_index() to load gs safely; unfortunately this also
changes MSR_KERNEL_GS_BASE, which we managed separately.  This resulted
in confusion and breakage running 32-bit host userspace on a 64-bit kernel.

Fix by
- saving guest MSR_KERNEL_GS_BASE before we we reload the host's gs
- doing the host save/load unconditionally, instead of only when in guest
  long mode

Things can be cleaned up further, but this is the minmal fix for now.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-12-09 13:32:45 -08:00
..
alpha Fix up more fallout form alpha signal cleanups 2010-09-30 08:37:38 -07:00
arm ARM: cns3xxx: Fixup the missing second parameter to addruart macro to allow them to build. 2010-11-22 11:03:18 -08:00
avr32 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
blackfin Blackfin: bf52x/bf54x boards: drop unused nand page size 2010-08-27 16:08:43 -04:00
cris Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
frv frv: double syscall restarts, syscall restart in sigreturn() 2010-09-20 10:44:38 -07:00
h8300 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
ia64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2010-09-16 12:58:44 -07:00
m32r m32r: test __LITTLE_ENDIAN__ instead of __LITTLE_ENDIAN 2010-10-15 19:37:50 -07:00
m68k arch/m68k/mac/macboing.c: use unsigned long for irqflags 2010-10-01 10:50:58 -07:00
m68knommu m68k,m68knommu: Wire up fanotify_init, fanotify_mark, and prlimit64 2010-09-13 20:28:45 +02:00
microblaze microblaze: Fix build with make 3.82 2010-12-09 13:32:19 -08:00
mips Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 2010-10-20 13:18:21 -07:00
mn10300 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
parisc modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
powerpc powerpc: Fix call to subpage_protection() 2010-12-09 13:32:18 -08:00
s390 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
score Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
sh SH: Add missing consts to sys_execve() declaration 2010-12-09 13:32:25 -08:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2010-09-22 12:09:46 -07:00
tile Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2010-09-24 19:08:39 -07:00
um um: fix global timer issue when using CONFIG_NO_HZ 2010-12-09 13:32:32 -08:00
x86 KVM: VMX: Fix host userspace gsbase corruption 2010-12-09 13:32:45 -08:00
xtensa Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
.gitignore
Kconfig kprobes: Fix Kconfig dependency 2010-09-13 20:41:31 +02:00