From 59fa025292de3a650512f9232dfb9fb7bfa43a04 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Thu, 28 Dec 2017 15:41:37 +1100
Subject: [PATCH] [host] add store fence to shm writes as we are using
 writecombine

---
 host/Service.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/host/Service.cpp b/host/Service.cpp
index 81ccaf60..a4d9f1e2 100644
--- a/host/Service.cpp
+++ b/host/Service.cpp
@@ -292,6 +292,7 @@ bool Service::Process()
   // update the flags
   INTERLOCKED_AND8((volatile char *)flags, KVMFR_HEADER_FLAG_RESTART);
   INTERLOCKED_OR8 ((volatile char *)flags, updateFlags);
+  _mm_sfence();
 
   return true;
 }
\ No newline at end of file