summaryrefslogtreecommitdiffstats
path: root/arch/x86/kvm/mmu.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-06-25 12:16:51 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-25 12:16:51 +0200
commitd02859ecb321c8c0f74cb9bbe3f51a59e58822b0 (patch)
tree05dd5bdc55081c0a90bf0afc35c07d0d6e25d015 /arch/x86/kvm/mmu.c
parenta987b16cc6123af2c9414032701bab5f73c54c89 (diff)
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
downloadlinux-d02859ecb321c8c0f74cb9bbe3f51a59e58822b0.tar.gz
linux-d02859ecb321c8c0f74cb9bbe3f51a59e58822b0.tar.bz2
linux-d02859ecb321c8c0f74cb9bbe3f51a59e58822b0.zip
Merge commit 'v2.6.26-rc8' into x86/xen
Conflicts: arch/x86/xen/enlighten.c arch/x86/xen/mmu.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
-rw-r--r--arch/x86/kvm/mmu.c19
1 files changed, 8 insertions, 11 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index ee3f53098f0c..7e7c3969f7a2 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -640,6 +640,7 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
rmap_remove(kvm, spte);
--kvm->stat.lpages;
set_shadow_pte(spte, shadow_trap_nonpresent_pte);
+ spte = NULL;
write_protected = 1;
}
spte = rmap_next(kvm, rmapp, spte);
@@ -1082,10 +1083,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
struct kvm_mmu_page *shadow;
spte |= PT_WRITABLE_MASK;
- if (user_fault) {
- mmu_unshadow(vcpu->kvm, gfn);
- goto unshadowed;
- }
shadow = kvm_mmu_lookup_page(vcpu->kvm, gfn);
if (shadow ||
@@ -1102,8 +1099,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
}
}
-unshadowed:
-
if (pte_access & ACC_WRITE_MASK)
mark_page_dirty(vcpu->kvm, gfn);
@@ -1580,11 +1575,13 @@ static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu,
u64 *spte,
const void *new)
{
- if ((sp->role.level != PT_PAGE_TABLE_LEVEL)
- && !vcpu->arch.update_pte.largepage) {
- ++vcpu->kvm->stat.mmu_pde_zapped;
- return;
- }
+ if (sp->role.level != PT_PAGE_TABLE_LEVEL) {
+ if (!vcpu->arch.update_pte.largepage ||
+ sp->role.glevels == PT32_ROOT_LEVEL) {
+ ++vcpu->kvm->stat.mmu_pde_zapped;
+ return;
+ }
+ }
++vcpu->kvm->stat.mmu_pte_updated;
if (sp->role.glevels == PT32_ROOT_LEVEL)