[Xen-changelog] [xen staging] x86/nvmx: only update SVI when using Ack on exit

[patchbot@xxxxxxx]

commit 55d035f8e9e53903c72182059422377612b84169
Author:     Roger Pau Monné <roger.pau@xxxxxxxxxx>
AuthorDate: Thu Mar 26 12:25:40 2020 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Mar 26 12:25:40 2020 +0100

    x86/nvmx: only update SVI when using Ack on exit
    
    Check whether there's a valid interrupt in VM_EXIT_INTR_INFO in order
    to decide whether to update SVI in nvmx_update_apicv. If Ack on exit
    is not being used VM_EXIT_INTR_INFO won't have a valid interrupt and
    hence SVI shouldn't be updated to signal the interrupt is currently in
    service because it won't be Acked.
    
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
---
 xen/arch/x86/hvm/vmx/vvmx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c
index 1b8461ba30..1753005c91 100644
--- a/xen/arch/x86/hvm/vmx/vvmx.c
+++ b/xen/arch/x86/hvm/vmx/vvmx.c
@@ -1383,7 +1383,7 @@ static void nvmx_update_apicv(struct vcpu *v)
 {
     struct nestedvmx *nvmx = &vcpu_2_nvmx(v);
     unsigned long reason = get_vvmcs(v, VM_EXIT_REASON);
-    uint32_t intr_info = nvmx->intr.intr_info;
+    unsigned long intr_info = get_vvmcs(v, VM_EXIT_INTR_INFO);
 
     if ( reason == EXIT_REASON_EXTERNAL_INTERRUPT &&
          nvmx->intr.source == hvm_intsrc_lapic &&
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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