qapi: Mark deprecated QMP parts with feature 'deprecated'

Add feature 'deprecated' to the deprecated QMP commands, so their
deprecation becomes visible in output of query-qmp-schema.  Looks like
this:

    {"name": "query-cpus",
     "ret-type": "[164]",
     "meta-type": "command",
     "arg-type": "0",
---> "features": ["deprecated"]}

Management applications could conceivably use this for static
checking.

The deprecated commands are change, cpu-add, migrate-set-cache-size,
migrate_set_downtime, migrate_set_speed, query-cpus, query-events,
query-migrate-cache-size.

The deprecated command arguments are block-commit arguments @base and
@top, and block_set_io_throttle, blockdev-change-medium,
blockdev-close-tray, blockdev-open-tray, eject argument @device.

The deprecated command results are query-cpus-fast result @arch,
query-block result @dirty-bitmaps, query-named-block-nodes result
@encryption_key_missing and result @dirty-bitmaps's member @status.
Same for query-block result @inserted, which mirrors
query-named-block-nodes.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200317115459.31821-27-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

1 files changed, 21 insertions, 9 deletions

diff --git a/qapi/block.json b/qapi/block.json
index 97bf52b..2ddbfa8 100644
--- a/qapi/block.json
+++ b/qapi/block.json
@@ -90,15 +90,18 @@
 ##
 # @eject:
 #
-# Ejects a device from a removable drive.
+# Ejects the medium from a removable drive.
 #
-# @device: Block device name (deprecated, use @id instead)
+# @device: Block device name
 #
 # @id: The name or QOM path of the guest device (since: 2.8)
 #
 # @force: If true, eject regardless of whether the drive is locked.
 #         If not specified, the default value is false.
 #
+# Features:
+# @deprecated: Member @device is deprecated.  Use @id instead.
+#
 # Returns: - Nothing on success
 #          - If @device is not a valid block device, DeviceNotFound
 # Notes:    Ejecting a device with no media results in success
@@ -111,7 +114,7 @@
 # <- { "return": {} }
 ##
 { 'command': 'eject',
-  'data': { '*device': 'str',
+  'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] },
             '*id': 'str',
             '*force': 'bool' } }
 
@@ -134,7 +137,7 @@
 #   to it
 # - if the guest device does not have an actual tray
 #
-# @device: Block device name (deprecated, use @id instead)
+# @device: Block device name
 #
 # @id: The name or QOM path of the guest device (since: 2.8)
 #
@@ -143,6 +146,9 @@
 #         immediately); if true, the tray will be opened regardless of whether
 #         it is locked
 #
+# Features:
+# @deprecated: Member @device is deprecated.  Use @id instead.
+#
 # Since: 2.5
 #
 # Example:
@@ -161,7 +167,7 @@
 #
 ##
 { 'command': 'blockdev-open-tray',
-  'data': { '*device': 'str',
+  'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] },
             '*id': 'str',
             '*force': 'bool' } }
 
@@ -174,10 +180,13 @@
 #
 # If the tray was already closed before, this will be a no-op.
 #
-# @device: Block device name (deprecated, use @id instead)
+# @device: Block device name
 #
 # @id: The name or QOM path of the guest device (since: 2.8)
 #
+# Features:
+# @deprecated: Member @device is deprecated.  Use @id instead.
+#
 # Since: 2.5
 #
 # Example:
@@ -196,7 +205,7 @@
 #
 ##
 { 'command': 'blockdev-close-tray',
-  'data': { '*device': 'str',
+  'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] },
             '*id': 'str' } }
 
 ##
@@ -303,7 +312,7 @@
 # combines blockdev-open-tray, blockdev-remove-medium, blockdev-insert-medium
 # and blockdev-close-tray).
 #
-# @device: Block device name (deprecated, use @id instead)
+# @device: Block device name
 #
 # @id: The name or QOM path of the guest device
 #      (since: 2.8)
@@ -316,6 +325,9 @@
 # @read-only-mode: change the read-only mode of the device; defaults
 #                  to 'retain'
 #
+# Features:
+# @deprecated: Member @device is deprecated.  Use @id instead.
+#
 # Since: 2.5
 #
 # Examples:
@@ -350,7 +362,7 @@
 #
 ##
 { 'command': 'blockdev-change-medium',
-  'data': { '*device': 'str',
+  'data': { '*device': { 'type': 'str', 'features': [ 'deprecated' ] },
             '*id': 'str',
             'filename': 'str',
             '*format': 'str',