---

yaml --- r: 80638 b: refs/heads/master c: a22436b h: refs/heads/master v: v3
git-mirror · Jan 30, 2008 · 34164b3 · 34164b3
1 parent 38426eb
commit 34164b3
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Showing 2 changed files with 8 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e4f8e03956de4b1a1dc4bbbdefa9c973d01ee91f
+refs/heads/master: a22436b7b8ec9b14a0451d9ac0fdc9d370bd7800
diff --git a/trunk/drivers/kvm/kvm_main.c b/trunk/drivers/kvm/kvm_main.c
@@ -1251,7 +1251,7 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
 			u16 error_code,
 			int no_decode)
 {
-	int r = 0;
+	int r;
 
 	vcpu->mmio_fault_cr2 = cr2;
 	kvm_x86_ops->cache_regs(vcpu);
@@ -1294,10 +1294,14 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
 					get_segment_base(vcpu, VCPU_SREG_FS);
 
 		r = x86_decode_insn(&vcpu->emulate_ctxt, &emulate_ops);
+		if (r)  {
+			if (kvm_mmu_unprotect_page_virt(vcpu, cr2))
+				return EMULATE_DONE;
+			return EMULATE_FAIL;
+		}
 	}
 
-	if (r == 0)
-		r = x86_emulate_insn(&vcpu->emulate_ctxt, &emulate_ops);
+	r = x86_emulate_insn(&vcpu->emulate_ctxt, &emulate_ops);
 
 	if (vcpu->pio.string)
 		return EMULATE_DO_MMIO;