From de9ba2f36368d21314860ee24893a6ffef01e548 Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Tue, 16 Apr 2013 17:42:19 +0200
Subject: KVM: PPC: Support irq routing and irqfd for in-kernel MPIC

Now that all the irq routing and irqfd pieces are generic, we can expose
real irqchip support to all of KVM's internal helpers.

This allows us to use irqfd with the in-kernel MPIC.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/irq.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 arch/powerpc/kvm/irq.h

(limited to 'arch/powerpc/kvm/irq.h')

diff --git a/arch/powerpc/kvm/irq.h b/arch/powerpc/kvm/irq.h
new file mode 100644
index 00000000000..f1e27fdc8c2
--- /dev/null
+++ b/arch/powerpc/kvm/irq.h
@@ -0,0 +1,17 @@
+#ifndef __IRQ_H
+#define __IRQ_H
+
+#include <linux/kvm_host.h>
+
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+	int ret = 0;
+
+#ifdef CONFIG_KVM_MPIC
+	ret = ret || (kvm->arch.mpic != NULL);
+#endif
+	smp_rmb();
+	return ret;
+}
+
+#endif
-- 
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