diff --git a/[refs] b/[refs]
index ae44210b6de6..5618ccb2c991 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 68be0803456b3eed33038be5566710ad7648c854
+refs/heads/master: 9195c4da26bbf8860e2e7b648dbf4ab465c7933a
diff --git a/trunk/arch/x86/kvm/i8259.c b/trunk/arch/x86/kvm/i8259.c
index 819b748a33f9..8d10c063d7f2 100644
--- a/trunk/arch/x86/kvm/i8259.c
+++ b/trunk/arch/x86/kvm/i8259.c
@@ -363,10 +363,20 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val)
 		}
 	} else
 		switch (s->init_state) {
-		case 0:		/* normal mode */
+		case 0: { /* normal mode */
+			u8 imr_diff = s->imr ^ val,
+				off = (s == &s->pics_state->pics[0]) ? 0 : 8;
 			s->imr = val;
+			for (irq = 0; irq < PIC_NUM_PINS/2; irq++)
+				if (imr_diff & (1 << irq))
+					kvm_fire_mask_notifiers(
+						s->pics_state->kvm,
+						SELECT_PIC(irq + off),
+						irq + off,
+						!!(s->imr & (1 << irq)));
 			pic_update_irq(s->pics_state);
 			break;
+		}
 		case 1:
 			s->irq_base = val & 0xf8;
 			s->init_state = 2;