KVM: MMU: Fix is_rmap_pte() with io ptes
is_rmap_pte() doesn't take into account io ptes, which have the avail bit set.
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d8172aa..e49c4d4 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -222,8 +222,7 @@
static int is_rmap_pte(u64 pte)
{
- return pte != shadow_trap_nonpresent_pte
- && pte != shadow_notrap_nonpresent_pte;
+ return is_shadow_present_pte(pte);
}
static gfn_t pse36_gfn_delta(u32 gpte)
