Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

[platform/upstream/kernel-adaptation-pc.git] / arch / x86 / kernel / irq.c

diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 84b7789..ac0631d 100644 (file)
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -224,6 +224,28 @@ void smp_x86_platform_ipi(struct pt_regs *regs)
        set_irq_regs(old_regs);
 }
 
+#ifdef CONFIG_HAVE_KVM
+/*
+ * Handler for POSTED_INTERRUPT_VECTOR.
+ */
+void smp_kvm_posted_intr_ipi(struct pt_regs *regs)
+{
+       struct pt_regs *old_regs = set_irq_regs(regs);
+
+       ack_APIC_irq();
+
+       irq_enter();
+
+       exit_idle();
+
+       inc_irq_stat(kvm_posted_intr_ipis);
+
+       irq_exit();
+
+       set_irq_regs(old_regs);
+}
+#endif
+
 EXPORT_SYMBOL_GPL(vector_used_by_percpu_irq);
 
 #ifdef CONFIG_HOTPLUG_CPU