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authorMarcelo Tosatti <mtosatti@redhat.com>2008-12-22 18:49:30 -0200
committerAvi Kivity <avi@redhat.com>2008-12-31 16:55:49 +0200
commit87917239204d67a316cb89751750f86c9ed3640b (patch)
treef766f4ad19f08d16b87faa1de3c9ead2e6b3ea1e /arch/x86/kvm/mmu.c
parent3f353858c98dbe0240dac558a89870f4600f81bb (diff)
KVM: MMU: handle large host sptes on invlpg/resync
The invlpg and sync walkers lack knowledge of large host sptes, descending to non-existant pagetable level. Stop at directory level in such case. Fixes SMP Windows XP with hugepages. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
-rw-r--r--arch/x86/kvm/mmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d50ebac6a07..83f11c7474a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1007,7 +1007,7 @@ static int __mmu_unsync_walk(struct kvm_mmu_page *sp,
for_each_unsync_children(sp->unsync_child_bitmap, i) {
u64 ent = sp->spt[i];
- if (is_shadow_present_pte(ent)) {
+ if (is_shadow_present_pte(ent) && !is_large_pte(ent)) {
struct kvm_mmu_page *child;
child = page_header(ent & PT64_BASE_ADDR_MASK);