---

yaml --- r: 45280 b: refs/heads/master c: 1436465 h: refs/heads/master v: v3
git-mirror · Jan 6, 2007 · 5346de0 · 5346de0
1 parent 9fd85dd
commit 5346de0
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 32b35627355c3bf17e1903efd117efed7653a54e
+refs/heads/master: 143646567f6dcd584e1ab359b5ec83e0545e70cf
diff --git a/trunk/drivers/kvm/paging_tmpl.h b/trunk/drivers/kvm/paging_tmpl.h
@@ -271,6 +271,7 @@ static int FNAME(fix_write_pf)(struct kvm_vcpu *vcpu,
 	pt_element_t *guest_ent;
 	int writable_shadow;
 	gfn_t gfn;
+	struct kvm_mmu_page *page;
 
 	if (is_writeble_pte(*shadow_ent))
 		return 0;
@@ -303,7 +304,17 @@ static int FNAME(fix_write_pf)(struct kvm_vcpu *vcpu,
 	}
 
 	gfn = walker->gfn;
-	if (kvm_mmu_lookup_page(vcpu, gfn)) {
+
+	if (user) {
+		/*
+		 * Usermode page faults won't be for page table updates.
+		 */
+		while ((page = kvm_mmu_lookup_page(vcpu, gfn)) != NULL) {
+			pgprintk("%s: zap %lx %x\n",
+				 __FUNCTION__, gfn, page->role.word);
+			kvm_mmu_zap_page(vcpu, page);
+		}
+	} else if (kvm_mmu_lookup_page(vcpu, gfn)) {
 		pgprintk("%s: found shadow page for %lx, marking ro\n",
 			 __FUNCTION__, gfn);
 		*write_pt = 1;