1 files changed, 1 insertions, 0 deletions

diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index 6acd9cefd517..6a6e91449347 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -492,6 +492,7 @@ struct dom0_vga_console_info {
 /* These flags are passed in the 'flags' field of start_info_t. */
 #define SIF_PRIVILEGED    (1<<0)  /* Is the domain privileged? */
 #define SIF_INITDOMAIN    (1<<1)  /* Is this the initial control domain? */
+#define SIF_PM_MASK       (0xFF<<8) /* reserve 1 byte for xen-pm options */
 
 typedef uint64_t cpumap_t;