[Xen-devel] [RFC v2 04/15] vmx: Extend struct pi_desc to support VT-d Posted-Interrupts

[Feng Wu <feng.wu@xxxxxxxxx>]

Extend struct pi_desc according to VT-d Posted-Interrupts Spec.

Signed-off-by: Feng Wu <feng.wu@xxxxxxxxx>
---
 xen/include/asm-x86/hvm/vmx/vmcs.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/xen/include/asm-x86/hvm/vmx/vmcs.h 
b/xen/include/asm-x86/hvm/vmx/vmcs.h
index 6fce6aa..3707d1c 100644
--- a/xen/include/asm-x86/hvm/vmx/vmcs.h
+++ b/xen/include/asm-x86/hvm/vmx/vmcs.h
@@ -76,8 +76,19 @@ struct vmx_domain {
 
 struct pi_desc {
     DECLARE_BITMAP(pir, NR_VECTORS);
-    u32 control;
-    u32 rsvd[7];
+    union {
+        struct
+        {
+        u64 on     : 1,  /* bit 256 - Outstanding Notification */
+            sn     : 1,  /* bit 257 - Suppress Notification */
+            rsvd_1 : 14, /* bit 271:258 - Reserved */
+            nv     : 8,  /* bit 279:272 - Notification Vector */
+            rsvd_2 : 8,  /* bit 287:280 - Reserved */
+            ndst   : 32; /* bit 319:288 - Notification Destination */
+        };
+        u64 control;
+    };
+    u32 rsvd[6];
 } __attribute__ ((aligned (64)));
 
 #define ept_get_wl(ept)   ((ept)->ept_wl)
-- 
2.1.0


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