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>

1 files changed, 18 insertions, 2 deletions

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6f3f97f6e248..4ebdccd882c8 100644
--- 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)