2 files changed, 8 insertions, 3 deletions

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 8b9ee27805fd..1a20318c8cff 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -95,7 +95,7 @@ struct shared_info *HYPERVISOR_shared_info = (void *)&dummy_shared_info;
  *
  * 0: not available, 1: available
  */
-static int have_vcpu_info_placement = 0;
+static int have_vcpu_info_placement = 1;
 
 static void __init xen_vcpu_setup(int cpu)
 {
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index 1a43b60c0c62..6b7190449d07 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -33,12 +33,17 @@
         events, then enter the hypervisor to get them handled.
  */
 ENTRY(xen_irq_enable_direct)
-        /* Clear mask and test pending */
-        andw $0x00ff, PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_pending
+        /* Unmask events */
+        movb $0, PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_mask
+
         /* Preempt here doesn't matter because that will deal with
            any pending interrupts.  The pending check may end up being
            run on the wrong CPU, but that doesn't hurt. */
+
+        /* Test for pending */
+        testb $0xff, PER_CPU_VAR(xen_vcpu_info)+XEN_vcpu_info_pending
         jz 1f
+
 2:      call check_events
 1:
 ENDPATCH(xen_irq_enable_direct)