[PATCH] SVM: inject high priority interrupts first

[PATCH] SVM: inject high priority interrupts first

[Joerg Roedel]

This patch changes the order in which interrupts are injected when the
in-kernel APIC is disabled. Now the IRQ with the highest priority is injected
first.

Signed-off-by: Joerg Roedel <joerg.roedel-5C7GfCeVMHo@public.gmane.org>
Signed-off-by: Markus Rechberger <markus.rechberger-5C7GfCeVMHo@public.gmane.org>
---
 drivers/kvm/svm.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 839a75f..59ec261 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1389,8 +1389,8 @@ static void kvm_reput_irq(struct vcpu_svm *svm)
 static void svm_do_inject_vector(struct vcpu_svm *svm)
 {
 	struct kvm_vcpu *vcpu = &svm->vcpu;
-	int word_index = __ffs(vcpu->irq_summary);
-	int bit_index = __ffs(vcpu->irq_pending[word_index]);
+	int word_index = __fls(vcpu->irq_summary);
+	int bit_index = __fls(vcpu->irq_pending[word_index]);
 	int irq = word_index * BITS_PER_LONG + bit_index;
 
 	clear_bit(bit_index, &vcpu->irq_pending[word_index]);
-- 
1.5.2.5




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