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[20/21] kvm/svm: check for nested VINTR flag in svm_interrupt_allowed

Message ID 1249638588-10982-21-git-send-email-joerg.roedel@amd.com (mailing list archive)
State New, archived
Headers show

Commit Message

Joerg Roedel Aug. 7, 2009, 9:49 a.m. UTC
Not checking for this flag breaks any nested hypervisor that does not
set VINTR. So fix it with this patch.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 arch/x86/kvm/svm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
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Patch

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 089310d..8b32cc8 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2467,7 +2467,7 @@  static int svm_interrupt_allowed(struct kvm_vcpu *vcpu)
 	return (vmcb->save.rflags & X86_EFLAGS_IF) &&
 		!(vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) &&
 		gif_set(svm) &&
-		!is_nested(svm);
+		!(is_nested(svm) && (svm->vcpu.arch.hflags & HF_VINTR_MASK));
 }
 
 static void enable_irq_window(struct kvm_vcpu *vcpu)