kvm: external module: empty_zero_page compatibilitykvm-53

1 files changed, 12 insertions, 0 deletions

diff --git a/kvm/kernel/external-module-compat.h b/kvm/kernel/external-module-compat.h
index 59964a1ac..fe735ef9c 100644
--- a/kvm/kernel/external-module-compat.h
+++ b/kvm/kernel/external-module-compat.h
@@ -530,3 +530,15 @@ out:
 #define dest__reserved_2  6
 #define dest_ExtINT       7
 #endif
+
+/* empty_zero_page isn't exported in all kernels */
+#include <asm/pgtable.h>
+
+#define empty_zero_page kvm_empty_zero_page
+
+static char empty_zero_page[PAGE_SIZE];
+
+static inline void blahblah(void)
+{
+	(void)empty_zero_page[0];
+}