[Xen-changelog] [xen-unstable] x86, passthrough: Enhance guest's interrupt affinity setting.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1261993163 0
# Node ID 280ecaf392946218714947c681178659ae14865e
# Parent  eaf69c86f8341c0583a20b8b239711757de1ec5c
x86, passthrough: Enhance guest's interrupt affinity setting.

When guest uses logical flat destionation mode for interrupt delivery,
vector doesn't change but destionation also can change, so should
enhance the check condition.

Signed-off-by: Xiantao Zhang <xiantao.zhang@xxxxxxxxx>
---
 xen/drivers/passthrough/io.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -r eaf69c86f834 -r 280ecaf39294 xen/drivers/passthrough/io.c
--- a/xen/drivers/passthrough/io.c      Mon Dec 28 09:38:34 2009 +0000
+++ b/xen/drivers/passthrough/io.c      Mon Dec 28 09:39:23 2009 +0000
@@ -199,7 +199,8 @@ int pt_irq_create_bind_vtd(
             }
  
             /* if pirq is already mapped as vmsi, update the guest data/addr */
-            if ( hvm_irq_dpci->mirq[pirq].gmsi.gvec != pt_irq_bind->u.msi.gvec 
) {
+            if ( hvm_irq_dpci->mirq[pirq].gmsi.gvec != pt_irq_bind->u.msi.gvec 
||
+                hvm_irq_dpci->mirq[pirq].gmsi.gflags != 
pt_irq_bind->u.msi.gflags) {
                 hvm_irq_dpci->mirq[pirq].gmsi.old_gvec =
                                     hvm_irq_dpci->mirq[pirq].gmsi.gvec;
                 hvm_irq_dpci->mirq[pirq].gmsi.old_gflags =

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