---

yaml --- r: 80766 b: refs/heads/master c: e5a4c8c h: refs/heads/master v: v3
git-mirror · Jan 30, 2008 · 1f0fc33 · 1f0fc33
1 parent 8d2f52e
commit 1f0fc33
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Showing 2 changed files with 7 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 26e5215fdc6cf7b5a8b1269134095abbb7338b3c
+refs/heads/master: e5a4c8cad952d6e060991841f3632578ab3ae133
diff --git a/trunk/drivers/kvm/paging_tmpl.h b/trunk/drivers/kvm/paging_tmpl.h
@@ -486,19 +486,22 @@ static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr)
 static void FNAME(prefetch_page)(struct kvm_vcpu *vcpu,
 				 struct kvm_mmu_page *sp)
 {
-	int i;
+	int i, offset = 0;
 	pt_element_t *gpt;
 	struct page *page;
 
-	if (sp->role.metaphysical || PTTYPE == 32) {
+	if (sp->role.metaphysical
+	    || (PTTYPE == 32 && sp->role.level > PT_PAGE_TABLE_LEVEL)) {
 		nonpaging_prefetch_page(vcpu, sp);
 		return;
 	}
 
+	if (PTTYPE == 32)
+		offset = sp->role.quadrant << PT64_LEVEL_BITS;
 	page = gfn_to_page(vcpu->kvm, sp->gfn);
 	gpt = kmap_atomic(page, KM_USER0);
 	for (i = 0; i < PT64_ENT_PER_PAGE; ++i)
-		if (is_present_pte(gpt[i]))
+		if (is_present_pte(gpt[offset + i]))
 			sp->spt[i] = shadow_trap_nonpresent_pte;
 		else
 			sp->spt[i] = shadow_notrap_nonpresent_pte;