From 85199474d0df23b87f0b4a3e330401b59aac3ec0 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Mon, 22 Feb 2010 13:57:54 -0300
Subject: kvm-all.c: define smp_wmb and use it for coalesced mmio

Acked-by: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 qemu-barrier.h | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 qemu-barrier.h

(limited to 'qemu-barrier.h')

diff --git a/qemu-barrier.h b/qemu-barrier.h
new file mode 100644
index 0000000000..3bd1075d66
--- /dev/null
+++ b/qemu-barrier.h
@@ -0,0 +1,7 @@
+#ifndef __QEMU_BARRIER_H
+#define __QEMU_BARRIER_H 1
+
+/* FIXME: arch dependant, x86 version */
+#define smp_wmb()   asm volatile("" ::: "memory")
+
+#endif
-- 
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