KVM: MMU: mode specific sync_page

Examine guest pagetable and bring the shadow back in sync. Caller is responsible
for local TLB flush before re-entering guest mode.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index 805629c0f15f..8bad9bd9b37e 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -220,6 +220,8 @@ struct kvm_mmu {
         gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
         void (*prefetch_page)(struct kvm_vcpu *vcpu,
                               struct kvm_mmu_page *page);
+        int (*sync_page)(struct kvm_vcpu *vcpu,
+                         struct kvm_mmu_page *sp);
         hpa_t root_hpa;
         int root_level;
         int shadow_root_level;