[PATCH] KVM: MMU: Fix is_rmap_pte() with io ptes

[Avi Kivity]

is_rmap_pte() doesn't take into account io ptes, which have the avail bit set.

Signed-off-by: Avi Kivity <avi@xxxxxxxxxxxx>

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_io_pte(unsigned long pte)
 
 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)
-- 
1.5.4.2