1 files changed, 28 insertions, 0 deletions

diff --git a/include/asm-x86/xen/interface.h b/include/asm-x86/xen/interface.h
index 165c3968e138..6227000a1e84 100644
--- a/include/asm-x86/xen/interface.h
+++ b/include/asm-x86/xen/interface.h
@@ -22,6 +22,30 @@
 #define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
 #define GUEST_HANDLE(name)        __guest_handle_ ## name
 
+#ifdef __XEN__
+#if defined(__i386__)
+#define set_xen_guest_handle(hnd, val)                  \
+        do {                                            \
+                if (sizeof(hnd) == 8)                   \
+                        *(uint64_t *)&(hnd) = 0;        \
+                (hnd).p = val;                          \
+        } while (0)
+#elif defined(__x86_64__)
+#define set_xen_guest_handle(hnd, val)  do { (hnd).p = val; } while (0)
+#endif
+#else
+#if defined(__i386__)
+#define set_xen_guest_handle(hnd, val)                  \
+        do {                                            \
+                if (sizeof(hnd) == 8)                   \
+                        *(uint64_t *)&(hnd) = 0;        \
+                (hnd) = val;                            \
+        } while (0)
+#elif defined(__x86_64__)
+#define set_xen_guest_handle(hnd, val)  do { (hnd) = val; } while (0)
+#endif
+#endif
+
 #ifndef __ASSEMBLY__
 /* Guest handles for primitive C types. */
 __DEFINE_GUEST_HANDLE(uchar, unsigned char);
@@ -171,6 +195,10 @@ struct arch_vcpu_info {
     unsigned long pad[5]; /* sizeof(struct vcpu_info) == 64 */
 };
 
+struct xen_callback {
+        unsigned long cs;
+        unsigned long eip;
+};
 #endif /* !__ASSEMBLY__ */
 
 /*