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-rw-r--r--include/xen/interface/grant_table.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h
index bcce56439d64..56806bc90c2f 100644
--- a/include/xen/interface/grant_table.h
+++ b/include/xen/interface/grant_table.h
@@ -526,6 +526,13 @@ DEFINE_GUEST_HANDLE_STRUCT(gnttab_cache_flush);
#define GNTMAP_contains_pte (1<<_GNTMAP_contains_pte)
/*
+ * Bits to be placed in guest kernel available PTE bits (architecture
+ * dependent; only supported when XENFEAT_gnttab_map_avail_bits is set).
+ */
+#define _GNTMAP_guest_avail0 (16)
+#define GNTMAP_guest_avail_mask ((uint32_t)~0 << _GNTMAP_guest_avail0)
+
+/*
* Values for error status returns. All errors are -ve.
*/
#define GNTST_okay (0) /* Normal return. */