Initial check-in to support PV balloon driver within HVM guests.

Still todo:

 - fix mapcache invalidation (should happen in Xen)
 - support 32-on-64 mode correctly

Signed-off-by: Steven Hand <steven@xensource.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/xen/arch/x86/hvm/irq.c b/xen/arch/x86/hvm/irq.c
index a85151eb26..c6c3e7c906 100644
--- a/xen/arch/x86/hvm/irq.c
+++ b/xen/arch/x86/hvm/irq.c
@@ -347,11 +347,7 @@ int hvm_local_events_need_delivery(struct vcpu *v)
 
     pending = (vcpu_info(v, evtchn_upcall_pending) || cpu_has_pending_irq(v));
     if ( unlikely(pending) )
-    {
-        struct cpu_user_regs regs;
-        hvm_store_cpu_guest_regs(v, &regs, NULL);
-        pending = !irq_masked(regs.eflags);
-    }
+        pending = hvm_interrupts_enabled(v); 
 
     return pending;
 }