qapi: Replace ad hoc "since" documentation by member documentation

MemoryDeviceInfoKind, NetClientDriver, and GuestPanicAction mention
some members only in ad hoc since documentation.  The generated
documentation shows these members as "Not documented".

Replace by formal member documentation.

Add actual documentation text for the GuestPanicAction members, to
match existing member documentation there.  For the others, merely
move existing "since" information.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230425064223.820979-14-armbru@redhat.com>

qapi/machine.json

@@ -1260,6 +1260,14 @@
 ##
 # @MemoryDeviceInfoKind:
 #
+# @nvdimm: since 2.12
+#
+# @virtio-pmem: since 4.1
+#
+# @virtio-mem: since 5.1
+#
+# @sgx-epc: since 6.2.
+#
 # Since: 2.1
 ##
 { 'enum': 'MemoryDeviceInfoKind',
@@ -1302,9 +1310,6 @@
 #
 # Union containing information about a memory device
 #
-# nvdimm is included since 2.12. virtio-pmem is included since 4.1.
-# virtio-mem is included since 5.1. sgx-epc is included since 6.2.
-#
 # Since: 2.1
 ##
 { 'union': 'MemoryDeviceInfo',

qapi/net.json

@@ -641,14 +641,15 @@
 #
 # Available netdev drivers.
 #
-# Since: 2.7
+# @l2tpv3: since 2.1
+# @vhost-vdpa: since 5.1
+# @vmnet-host: since 7.1
+# @vmnet-shared: since 7.1
+# @vmnet-bridged: since 7.1
+# @stream: since 7.2
+# @dgram: since 7.2
 #
-#        @vhost-vdpa since 5.1
-#        @vmnet-host since 7.1
-#        @vmnet-shared since 7.1
-#        @vmnet-bridged since 7.1
-#        @stream since 7.2
-#        @dgram since 7.2
+# Since: 2.7
 ##
 { 'enum': 'NetClientDriver',
   'data': [ 'none', 'nic', 'user', 'tap', 'l2tpv3', 'socket', 'stream',
@@ -669,12 +670,6 @@
 #
 # Since: 1.2
 #
-#        'l2tpv3' - since 2.1
-#        'vmnet-host' - since 7.1
-#        'vmnet-shared' - since 7.1
-#        'vmnet-bridged' - since 7.1
-#        'stream' since 7.2
-#        'dgram' since 7.2
 ##
 { 'union': 'Netdev',
   'base': { 'id': 'str', 'type': 'NetClientDriver' },

qapi/run-state.json

@@ -467,7 +467,11 @@
 #
 # @pause: system pauses
 #
-# Since: 2.1 (poweroff since 2.8, run since 5.0)
+# @poweroff: system powers off (since 2.8)
+#
+# @run: system continues to run (since 5.0)
+#
+# Since: 2.1
 ##
 { 'enum': 'GuestPanicAction',
   'data': [ 'pause', 'poweroff', 'run' ] }