From: Avi Kivity <[EMAIL PROTECTED]>

Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8a6a4f9..1594ee0 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1057,9 +1057,12 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 
*shadow_pte,
 
                        child = page_header(pte & PT64_BASE_ADDR_MASK);
                        mmu_page_remove_parent_pte(child, shadow_pte);
-               } else if (page != spte_to_page(*shadow_pte))
+               } else if (page != spte_to_page(*shadow_pte)) {
+                       pgprintk("hfn old %lx new %lx\n",
+                                page_to_pfn(spte_to_page(*shadow_pte)),
+                                page_to_pfn(page));
                        rmap_remove(vcpu->kvm, shadow_pte);
-               else {
+               } else {
                        if (largepage)
                                was_rmapped = is_large_pte(*shadow_pte);
                        else

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