Extend struct pi_desc according to VT-d Posted-Interrupts Spec.
CC: Kevin Tian <kevin.t...@intel.com>
CC: Keir Fraser <k...@xen.org>
CC: Jan Beulich <jbeul...@suse.com>
CC: Andrew Cooper <andrew.coop...@citrix.com>
Signed-off-by: Feng Wu <feng...@intel.com>
Reviewed-by: Andrew Cooper <andrew.coop...@citrix.com>
Acked-by: Kevin Tian <kevin.t...@intel.com>
---
v4:
- No changes
v3:
- Use u32 instead of u64 for the bitfield in 'struct pi_desc'
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 1104bda..dedfaef 100644
--- a/xen/include/asm-x86/hvm/vmx/vmcs.h
+++ b/xen/include/asm-x86/hvm/vmx/vmcs.h
@@ -81,8 +81,19 @@ struct vmx_domain {
struct pi_desc {
DECLARE_BITMAP(pir, NR_VECTORS);
- u32 control;
- u32 rsvd[7];
+ union {
+ struct
+ {
+ u16 on : 1, /* bit 256 - Outstanding Notification */
+ sn : 1, /* bit 257 - Suppress Notification */
+ rsvd_1 : 14; /* bit 271:258 - Reserved */
+ u8 nv; /* bit 279:272 - Notification Vector */
+ u8 rsvd_2; /* bit 287:280 - Reserved */
+ u32 ndst; /* 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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