qapi: Add NVMe driver options to the schema

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180116060901.17413-10-famz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>

qapi/block-core.json

@@ -2248,14 +2248,15 @@
 #
 # @vxhs: Since 2.10
 # @throttle: Since 2.11
+# @nvme: Since 2.12
 #
 # Since: 2.9
 ##
 { 'enum': 'BlockdevDriver',
   'data': [ 'blkdebug', 'blkverify', 'bochs', 'cloop',
             'dmg', 'file', 'ftp', 'ftps', 'gluster', 'host_cdrom',
             'host_device', 'http', 'https', 'iscsi', 'luks', 'nbd', 'nfs',
-            'null-aio', 'null-co', 'parallels', 'qcow', 'qcow2', 'qed',
+            'null-aio', 'null-co', 'nvme', 'parallels', 'qcow', 'qcow2', 'qed',
             'quorum', 'raw', 'rbd', 'replication', 'sheepdog', 'ssh',
             'throttle', 'vdi', 'vhdx', 'vmdk', 'vpc', 'vvfat', 'vxhs' ] }
 
@@ -2296,6 +2297,19 @@
 { 'struct': 'BlockdevOptionsNull',
   'data': { '*size': 'int', '*latency-ns': 'uint64' } }
 
+##
+# @BlockdevOptionsNVMe:
+#
+# Driver specific block device options for the NVMe backend.
+#
+# @device:    controller address of the NVMe device.
+# @namespace: namespace number of the device, starting from 1.
+#
+# Since: 2.12
+##
+{ 'struct': 'BlockdevOptionsNVMe',
+  'data': { 'device': 'str', 'namespace': 'int' } }
+
 ##
 # @BlockdevOptionsVVFAT:
 #
@@ -3201,6 +3215,7 @@
       'nfs':        'BlockdevOptionsNfs',
       'null-aio':   'BlockdevOptionsNull',
       'null-co':    'BlockdevOptionsNull',
+      'nvme':       'BlockdevOptionsNVMe',
       'parallels':  'BlockdevOptionsGenericFormat',
       'qcow2':      'BlockdevOptionsQcow2',
       'qcow':       'BlockdevOptionsQcow',