#define XEN_IA64_OPTF_IDENT_MAP_REG7 \
(1UL << XEN_IA64_OPTF_IDENT_MAP_REG7_BIT)
+/* Identity mapping of region 4 addresses in HVM. */
+#define XEN_IA64_OPTF_IDENT_MAP_REG4_BIT \
+ (XEN_IA64_OPTF_IDENT_MAP_REG7_BIT + 1)
+#define XEN_IA64_OPTF_IDENT_MAP_REG4 \
+ (1UL << XEN_IA64_OPTF_IDENT_MAP_REG4_BIT)
+
+/* Identity mapping of region 5 addresses in HVM. */
+#define XEN_IA64_OPTF_IDENT_MAP_REG5_BIT \
+ (XEN_IA64_OPTF_IDENT_MAP_REG7_BIT + 2)
+#define XEN_IA64_OPTF_IDENT_MAP_REG5 \
+ (1UL << XEN_IA64_OPTF_IDENT_MAP_REG5_BIT)
+
+#define XEN_IA64_OPTF_IDENT_MAP_NOT_SET (0)
+
struct xen_ia64_opt_feature {
unsigned long cmd; /* Which feature */
unsigned char on; /* Switch feature on/off */