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Date: Mon, 13 Jul 2015 17:47:17 +0800
From: Feng Wu <feng.wu@...el.com>
To: kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: pbonzini@...hat.com, alex.williamson@...hat.com, joro@...tes.org,
eric.auger@...aro.org, feng.wu@...el.com
Subject: [v5 01/19] 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@...el.com>
---
arch/x86/kvm/vmx.c | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index e11dd59..765539e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -445,8 +445,24 @@ 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)
--
2.1.0
--
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