diff --git a/xen/include/public/io/displif.h b/xen/include/public/io/displif.h
index cc5de9cb1f35..0055895510f7 100644
--- a/xen/include/public/io/displif.h
+++ b/xen/include/public/io/displif.h
@@ -38,7 +38,8 @@
  *                           Protocol version
  ******************************************************************************
  */
-#define XENDISPL_PROTOCOL_VERSION     "1"
+#define XENDISPL_PROTOCOL_VERSION     "2"
+#define XENDISPL_PROTOCOL_VERSION_INT  2
 
 /*
  ******************************************************************************
@@ -202,6 +203,9 @@
  *      Width and height of the connector in pixels separated by
  *      XENDISPL_RESOLUTION_SEPARATOR. This defines visible area of the
  *      display.
+ *      If backend provides extended display identification data (EDID) with
+ *      XENDISPL_OP_GET_EDID request then EDID values must take precedence
+ *      over the resolutions defined here.
  *
  *------------------ Connector Request Transport Parameters -------------------
  *
@@ -349,6 +353,8 @@
 #define XENDISPL_OP_FB_DETACH         0x13
 #define XENDISPL_OP_SET_CONFIG        0x14
 #define XENDISPL_OP_PG_FLIP           0x15
+/* The below command is available in protocol version 2 and above. */
+#define XENDISPL_OP_GET_EDID          0x16
 
 /*
  ******************************************************************************
@@ -377,6 +383,10 @@
 #define XENDISPL_FIELD_BE_ALLOC       "be-alloc"
 #define XENDISPL_FIELD_UNIQUE_ID      "unique-id"
 
+#define XENDISPL_EDID_BLOCK_SIZE      128
+#define XENDISPL_EDID_BLOCK_COUNT     256
+#define XENDISPL_EDID_MAX_SIZE        (XENDISPL_EDID_BLOCK_SIZE * XENDISPL_EDID_BLOCK_COUNT)
+
 /*
  ******************************************************************************
  *                          STATUS RETURN CODES
@@ -451,7 +461,9 @@
  * +----------------+----------------+----------------+----------------+
  * |                           gref_directory                          | 40
  * +----------------+----------------+----------------+----------------+
- * |                             reserved                              | 44
+ * |                             data_ofs                              | 44
+ * +----------------+----------------+----------------+----------------+
+ * |                             reserved                              | 48
  * +----------------+----------------+----------------+----------------+
  * |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|
  * +----------------+----------------+----------------+----------------+
@@ -494,6 +506,7 @@
  *   buffer size (buffer_sz) exceeds what can be addressed by this single page,
  *   then reference to the next page must be supplied (see gref_dir_next_page
  *   below)
+ * data_ofs - uint32_t, offset of the data in the buffer, octets
  */
 
 #define XENDISPL_DBUF_FLG_REQ_ALLOC       (1 << 0)
@@ -506,6 +519,7 @@ struct xendispl_dbuf_create_req {
     uint32_t buffer_sz;
     uint32_t flags;
     grant_ref_t gref_directory;
+    uint32_t data_ofs;
 };
 
 /*
@@ -731,6 +745,44 @@ struct xendispl_page_flip_req {
     uint64_t fb_cookie;
 };
 
+/*
+ * Request EDID - request EDID describing current connector:
+ *         0                1                 2               3        octet
+ * +----------------+----------------+----------------+----------------+
+ * |               id                | _OP_GET_EDID   |   reserved     | 4
+ * +----------------+----------------+----------------+----------------+
+ * |                             buffer_sz                             | 8
+ * +----------------+----------------+----------------+----------------+
+ * |                          gref_directory                           | 12
+ * +----------------+----------------+----------------+----------------+
+ * |                             reserved                              | 16
+ * +----------------+----------------+----------------+----------------+
+ * |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|
+ * +----------------+----------------+----------------+----------------+
+ * |                             reserved                              | 64
+ * +----------------+----------------+----------------+----------------+
+ *
+ * Notes:
+ *   - This command is not available in protocol version 1 and should be
+ *     ignored.
+ *   - This request is optional and if not supported then visible area
+ *     is defined by the relevant XenStore's "resolution" property.
+ *   - Shared buffer, allocated for EDID storage, must not be less then
+ *     XENDISPL_EDID_MAX_SIZE octets.
+ *
+ * buffer_sz - uint32_t, buffer size to be allocated, octets
+ * gref_directory - grant_ref_t, a reference to the first shared page
+ *   describing EDID buffer references. See XENDISPL_OP_DBUF_CREATE for
+ *   grant page directory structure (struct xendispl_page_directory).
+ *
+ * See response format for this request.
+ */
+
+struct xendispl_get_edid_req {
+    uint32_t buffer_sz;
+    grant_ref_t gref_directory;
+};
+
 /*
  *---------------------------------- Responses --------------------------------
  *
@@ -753,6 +805,35 @@ struct xendispl_page_flip_req {
  * id - uint16_t, private guest value, echoed from request
  * status - int32_t, response status, zero on success and -XEN_EXX on failure
  *
+ *
+ * Get EDID response - response for XENDISPL_OP_GET_EDID:
+ *         0                1                 2               3        octet
+ * +----------------+----------------+----------------+----------------+
+ * |               id                |    operation   |    reserved    | 4
+ * +----------------+----------------+----------------+----------------+
+ * |                              status                               | 8
+ * +----------------+----------------+----------------+----------------+
+ * |                             edid_sz                               | 12
+ * +----------------+----------------+----------------+----------------+
+ * |                             reserved                              | 16
+ * +----------------+----------------+----------------+----------------+
+ * |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|
+ * +----------------+----------------+----------------+----------------+
+ * |                             reserved                              | 64
+ * +----------------+----------------+----------------+----------------+
+ *
+ * Notes:
+ *   - This response is not available in protocol version 1 and should be
+ *     ignored.
+ *
+ * edid_sz - uint32_t, size of the EDID, octets
+ */
+
+struct xendispl_get_edid_resp {
+    uint32_t edid_sz;
+};
+
+/*
  *----------------------------------- Events ----------------------------------
  *
  * Events are sent via a shared page allocated by the front and propagated by
@@ -804,6 +885,7 @@ struct xendispl_req {
         struct xendispl_fb_detach_req fb_detach;
         struct xendispl_set_config_req set_config;
         struct xendispl_page_flip_req pg_flip;
+        struct xendispl_get_edid_req get_edid;
         uint8_t reserved[56];
     } op;
 };
@@ -813,7 +895,10 @@ struct xendispl_resp {
     uint8_t operation;
     uint8_t reserved;
     int32_t status;
-    uint8_t reserved1[56];
+    union {
+        struct xendispl_get_edid_resp get_edid;
+        uint8_t reserved1[56];
+    } op;
 };
 
 struct xendispl_evt {
