From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: [patch 10/13] KVM: MMU: mmu_convert_notrap helper
Date: Mon, 22 Sep 2008 16:16:37 -0300
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References: <20080922191627.671519725@localhost.localdomain>
Cc: kvm@vger.kernel.org, Marcelo Tosatti <mtosatti@redhat.com>
To: Avi Kivity <avi@redhat.com>
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Need to convert shadow_notrap_nonpresent -> shadow_trap_nonpresent when
unsyncing pages.

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

Index: kvm/arch/x86/kvm/mmu.c
===================================================================
--- kvm.orig/arch/x86/kvm/mmu.c
+++ kvm/arch/x86/kvm/mmu.c
@@ -1207,6 +1207,20 @@ static void page_header_update_slot(stru
 	__set_bit(slot, &sp->slot_bitmap);
 }
 
+static void mmu_convert_notrap(struct kvm_mmu_page *sp)
+{
+	int i;
+	u64 *pt = sp->spt;
+
+	if (shadow_trap_nonpresent_pte == shadow_notrap_nonpresent_pte)
+		return;
+
+	for (i = 0; i < PT64_ENT_PER_PAGE; ++i) {
+		if (pt[i] == shadow_notrap_nonpresent_pte)
+			set_shadow_pte(&pt[i], shadow_trap_nonpresent_pte);
+	}
+}
+
 struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
 {
 	struct page *page;

--