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qapi: introduce new cmd option "allow-preconfig"

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New option will be used to allow commands, which are prepared/need
to run, during preconfig state. Other commands that should be able
to run in preconfig state, should be amended to not expect machine
in initialized state or deal with it.

For compatibility reasons, commands that don't use new flag
'allow-preconfig' explicitly are not permitted to run in
preconfig state but allowed in all other states like they used
to be.

Within this patch allow following commands in preconfig state:
   qmp_capabilities
   query-qmp-schema
   query-commands
   query-command-line-options
   query-status
   exit-preconfig
to allow qmp connection, basic introspection and moving to the next
state.

PS:
set-numa-node and query-hotpluggable-cpus will be enabled later in
a separate patches.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1526057503-39287-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[ehabkost: Changed "since 2.13" to "since 3.0"]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Igor Mammedov 2018-05-11 18:51:43 +02:00 • committed by Eduardo Habkost
parent 71dc578e11
commit d6fe3d02e9
11 changed files with 51 additions and 27 deletions
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11
scripts/qapi/commands.py
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@ -193,13 +193,15 @@ out:
return ret
def gen_register_command(name, success_response, allow_oob):
def gen_register_command(name, success_response, allow_oob, allow_preconfig):
options = []
if not success_response:
options += ['QCO_NO_SUCCESS_RESP']
if allow_oob:
options += ['QCO_ALLOW_OOB']
if allow_preconfig:
options += ['QCO_ALLOW_PRECONFIG']
if not options:
options = ['QCO_NO_OPTIONS']
@ -275,8 +277,8 @@ void %(c_prefix)sqmp_init_marshal(QmpCommandList *cmds);
c_prefix=c_name(self._prefix, protect=False)))
genc.add(gen_registry(self._regy, self._prefix))
def visit_command(self, name, info, arg_type, ret_type,
gen, success_response, boxed, allow_oob):
def visit_command(self, name, info, arg_type, ret_type, gen,
success_response, boxed, allow_oob, allow_preconfig):
if not gen:
return
self._genh.add(gen_command_decl(name, arg_type, boxed, ret_type))
@ -285,7 +287,8 @@ void %(c_prefix)sqmp_init_marshal(QmpCommandList *cmds);
self._genc.add(gen_marshal_output(ret_type))
self._genh.add(gen_marshal_decl(name))
self._genc.add(gen_marshal(name, arg_type, boxed, ret_type))
self._regy += gen_register_command(name, success_response, allow_oob)
self._regy += gen_register_command(name, success_response, allow_oob,
allow_preconfig)
def gen_commands(schema, output_dir, prefix):