KVM: Extend struct pi_desc for VT-d Posted-Interrupts

Extend struct pi_desc for VT-d Posted-Interrupts.

Signed-off-by: Feng Wu <feng.wu@intel.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6f3f97f6e2485411c5b281ad09a5b36885a36e95..4ebdccd882c890dca9ab4d58c288fd1396d3a29b 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -446,8 +446,24 @@ struct nested_vmx {
 /* Posted-Interrupt Descriptor */
 struct pi_desc {
        u32 pir[8];     /* Posted interrupt requested */
-       u32 control;    /* bit 0 of control is outstanding notification bit */
-       u32 rsvd[7];
+       union {
+               struct {
+                               /* bit 256 - Outstanding Notification */
+                       u16     on      : 1,
+                               /* bit 257 - Suppress Notification */
+                               sn      : 1,
+                               /* bit 271:258 - Reserved */
+                               rsvd_1  : 14;
+                               /* bit 279:272 - Notification Vector */
+                       u8      nv;
+                               /* bit 287:280 - Reserved */
+                       u8      rsvd_2;
+                               /* bit 319:288 - Notification Destination */
+                       u32     ndst;
+               };
+               u64 control;
+       };
+       u32 rsvd[6];
 } __aligned(64);
 
 static bool pi_test_and_set_on(struct pi_desc *pi_desc)