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Commit 3c915510 authored by Avi Kivity's avatar Avi Kivity
Browse files

KVM: MMU: Fix is_empty_shadow_page() check 



The check is only looking at one of two possible empty ptes.

Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent ebb0e626

arch/x86/kvm/mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -658,7 +658,7 @@ static int is_empty_shadow_page(u64 *spt) 
	u64 *end;



	for (pos = spt, end = pos + PAGE_SIZE / sizeof(u64); pos != end; pos++)

		if (*pos != shadow_trap_nonpresent_pte) {

		if (is_shadow_present_pte(*pos)) {

			printk(KERN_ERR "%s: %p %llx\n", __func__,

			       pos, *pos);

			return 0;