From: Marc-André Lureau <marcandre.lureau@redhat.com>

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
---
 src/x86.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/x86.h b/src/x86.h
index 4aea65c..c7bb60d 100644
--- a/src/x86.h
+++ b/src/x86.h
@@ -211,6 +211,11 @@ static inline void writeb(void *addr, u8 val) {
     barrier();
     *(volatile u8 *)addr = val;
 }
+static inline u64 readq(const void *addr) {
+    u64 val = *(volatile const u64 *)addr;
+    barrier();
+    return val;
+}
 static inline u32 readl(const void *addr) {
     u32 val = *(volatile const u32 *)addr;
     barrier();
-- 
2.5.5


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