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authorFeng Wu <feng.wu@intel.com>2015-09-18 17:29:45 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2015-10-01 16:06:48 +0300
commit6ef1522f7ecc063317dfb5ca63da6e47130a4c50 (patch)
tree13e4946ea863746d59b11884a9ecec4b8e4a7cec
parentf70c20aaf141adb715a2d750c55154073b02a9c3 (diff)
downloadlinux-6ef1522f7ecc063317dfb5ca63da6e47130a4c50.tar.xz
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>
-rw-r--r--arch/x86/kvm/vmx.c20
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)