qapi: Split control.json off misc.json

misc.json contains definitions that are related to the system emulator,
so it can't be used for other tools like the storage daemon. This patch
moves basic functionality that is shared between all tools (and mostly
related to the monitor itself) into a new control.json, which could be
used in tools as well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200129102239.31435-3-kwolf@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>

monitor/hmp-cmds.c

@@ -31,6 +31,7 @@
 #include "qapi/qapi-builtin-visit.h"
 #include "qapi/qapi-commands-block.h"
 #include "qapi/qapi-commands-char.h"
+#include "qapi/qapi-commands-control.h"
 #include "qapi/qapi-commands-migration.h"
 #include "qapi/qapi-commands-misc.h"
 #include "qapi/qapi-commands-net.h"

monitor/misc.c

@@ -67,6 +67,7 @@
 #include "qemu/thread.h"
 #include "block/qapi.h"
 #include "qapi/qapi-commands-char.h"
+#include "qapi/qapi-commands-control.h"
 #include "qapi/qapi-commands-migration.h"
 #include "qapi/qapi-commands-misc.h"
 #include "qapi/qapi-commands-qom.h"

monitor/monitor-internal.h

@@ -27,6 +27,7 @@
 
 #include "chardev/char-fe.h"
 #include "monitor/monitor.h"
+#include "qapi/qapi-types-control.h"
 #include "qapi/qmp/dispatch.h"
 #include "qapi/qmp/json-parser.h"
 #include "qemu/readline.h"

monitor/qmp-cmds.c

@@ -32,6 +32,7 @@
 #include "sysemu/block-backend.h"
 #include "qapi/error.h"
 #include "qapi/qapi-commands-block-core.h"
+#include "qapi/qapi-commands-control.h"
 #include "qapi/qapi-commands-machine.h"
 #include "qapi/qapi-commands-misc.h"
 #include "qapi/qapi-commands-ui.h"

monitor/qmp.c

@@ -27,7 +27,7 @@
 #include "chardev/char-io.h"
 #include "monitor-internal.h"
 #include "qapi/error.h"
-#include "qapi/qapi-commands-misc.h"
+#include "qapi/qapi-commands-control.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qjson.h"
 #include "qapi/qmp/qlist.h"

qapi/Makefile.objs

@@ -5,9 +5,9 @@ util-obj-y += opts-visitor.o qapi-clone-visitor.o
 util-obj-y += qmp-event.o
 util-obj-y += qapi-util.o
 
-QAPI_COMMON_MODULES = audio authz block-core block char common crypto
-QAPI_COMMON_MODULES += dump error introspect job machine migration misc net
-QAPI_COMMON_MODULES += qdev qom rdma rocker run-state sockets tpm
+QAPI_COMMON_MODULES = audio authz block-core block char common control crypto
+QAPI_COMMON_MODULES += dump error introspect job machine migration misc
+QAPI_COMMON_MODULES += net qdev qom rdma rocker run-state sockets tpm
 QAPI_COMMON_MODULES += trace transaction ui
 QAPI_TARGET_MODULES = machine-target misc-target
 QAPI_MODULES = $(QAPI_COMMON_MODULES) $(QAPI_TARGET_MODULES)

qapi/control.json

@@ -0,0 +1,218 @@
+# -*- Mode: Python -*-
+#
+
+##
+# = QMP monitor control
+##
+
+##
+# @qmp_capabilities:
+#
+# Enable QMP capabilities.
+#
+# Arguments:
+#
+# @enable: An optional list of QMPCapability values to enable.  The
+#          client must not enable any capability that is not
+#          mentioned in the QMP greeting message.  If the field is not
+#          provided, it means no QMP capabilities will be enabled.
+#          (since 2.12)
+#
+# Example:
+#
+# -> { "execute": "qmp_capabilities",
+#      "arguments": { "enable": [ "oob" ] } }
+# <- { "return": {} }
+#
+# Notes: This command is valid exactly when first connecting: it must be
+#        issued before any other command will be accepted, and will fail once the
+#        monitor is accepting other commands. (see qemu docs/interop/qmp-spec.txt)
+#
+#        The QMP client needs to explicitly enable QMP capabilities, otherwise
+#        all the QMP capabilities will be turned off by default.
+#
+# Since: 0.13
+#
+##
+{ 'command': 'qmp_capabilities',
+  'data': { '*enable': [ 'QMPCapability' ] },
+  'allow-preconfig': true }
+
+##
+# @QMPCapability:
+#
+# Enumeration of capabilities to be advertised during initial client
+# connection, used for agreeing on particular QMP extension behaviors.
+#
+# @oob: QMP ability to support out-of-band requests.
+#       (Please refer to qmp-spec.txt for more information on OOB)
+#
+# Since: 2.12
+#
+##
+{ 'enum': 'QMPCapability',
+  'data': [ 'oob' ] }
+
+##
+# @VersionTriple:
+#
+# A three-part version number.
+#
+# @major: The major version number.
+#
+# @minor: The minor version number.
+#
+# @micro: The micro version number.
+#
+# Since: 2.4
+##
+{ 'struct': 'VersionTriple',
+  'data': {'major': 'int', 'minor': 'int', 'micro': 'int'} }
+
+
+##
+# @VersionInfo:
+#
+# A description of QEMU's version.
+#
+# @qemu: The version of QEMU.  By current convention, a micro
+#        version of 50 signifies a development branch.  A micro version
+#        greater than or equal to 90 signifies a release candidate for
+#        the next minor version.  A micro version of less than 50
+#        signifies a stable release.
+#
+# @package: QEMU will always set this field to an empty string.  Downstream
+#           versions of QEMU should set this to a non-empty string.  The
+#           exact format depends on the downstream however it highly
+#           recommended that a unique name is used.
+#
+# Since: 0.14.0
+##
+{ 'struct': 'VersionInfo',
+  'data': {'qemu': 'VersionTriple', 'package': 'str'} }
+
+##
+# @query-version:
+#
+# Returns the current version of QEMU.
+#
+# Returns: A @VersionInfo object describing the current version of QEMU.
+#
+# Since: 0.14.0
+#
+# Example:
+#
+# -> { "execute": "query-version" }
+# <- {
+#       "return":{
+#          "qemu":{
+#             "major":0,
+#             "minor":11,
+#             "micro":5
+#          },
+#          "package":""
+#       }
+#    }
+#
+##
+{ 'command': 'query-version', 'returns': 'VersionInfo',
+  'allow-preconfig': true }
+
+##
+# @CommandInfo:
+#
+# Information about a QMP command
+#
+# @name: The command name
+#
+# Since: 0.14.0
+##
+{ 'struct': 'CommandInfo', 'data': {'name': 'str'} }
+
+##
+# @query-commands:
+#
+# Return a list of supported QMP commands by this server
+#
+# Returns: A list of @CommandInfo for all supported commands
+#
+# Since: 0.14.0
+#
+# Example:
+#
+# -> { "execute": "query-commands" }
+# <- {
+#      "return":[
+#         {
+#            "name":"query-balloon"
+#         },
+#         {
+#            "name":"system_powerdown"
+#         }
+#      ]
+#    }
+#
+# Note: This example has been shortened as the real response is too long.
+#
+##
+{ 'command': 'query-commands', 'returns': ['CommandInfo'],
+  'allow-preconfig': true }
+
+##
+# @EventInfo:
+#
+# Information about a QMP event
+#
+# @name: The event name
+#
+# Since: 1.2.0
+##
+{ 'struct': 'EventInfo', 'data': {'name': 'str'} }
+
+##
+# @query-events:
+#
+# Return information on QMP events.
+#
+# Returns: A list of @EventInfo.
+#
+# Since: 1.2.0
+#
+# Note: This command is deprecated, because its output doesn't reflect
+#       compile-time configuration.  Use query-qmp-schema instead.
+#
+# Example:
+#
+# -> { "execute": "query-events" }
+# <- {
+#      "return": [
+#          {
+#             "name":"SHUTDOWN"
+#          },
+#          {
+#             "name":"RESET"
+#          }
+#       ]
+#    }
+#
+# Note: This example has been shortened as the real response is too long.
+#
+##
+{ 'command': 'query-events', 'returns': ['EventInfo'] }
+
+##
+# @quit:
+#
+# This command will cause the QEMU process to exit gracefully.  While every
+# attempt is made to send the QMP response before terminating, this is not
+# guaranteed.  When using this interface, a premature EOF would not be
+# unexpected.
+#
+# Since: 0.14.0
+#
+# Example:
+#
+# -> { "execute": "quit" }
+# <- { "return": {} }
+##
+{ 'command': 'quit' }

qapi/misc.json

@@ -7,159 +7,6 @@
 
 { 'include': 'common.json' }
 
-##
-# @qmp_capabilities:
-#
-# Enable QMP capabilities.
-#
-# Arguments:
-#
-# @enable: An optional list of QMPCapability values to enable.  The
-#          client must not enable any capability that is not
-#          mentioned in the QMP greeting message.  If the field is not
-#          provided, it means no QMP capabilities will be enabled.
-#          (since 2.12)
-#
-# Example:
-#
-# -> { "execute": "qmp_capabilities",
-#      "arguments": { "enable": [ "oob" ] } }
-# <- { "return": {} }
-#
-# Notes: This command is valid exactly when first connecting: it must be
-#        issued before any other command will be accepted, and will fail once the
-#        monitor is accepting other commands. (see qemu docs/interop/qmp-spec.txt)
-#
-#        The QMP client needs to explicitly enable QMP capabilities, otherwise
-#        all the QMP capabilities will be turned off by default.
-#
-# Since: 0.13
-#
-##
-{ 'command': 'qmp_capabilities',
-  'data': { '*enable': [ 'QMPCapability' ] },
-  'allow-preconfig': true }
-
-##
-# @QMPCapability:
-#
-# Enumeration of capabilities to be advertised during initial client
-# connection, used for agreeing on particular QMP extension behaviors.
-#
-# @oob: QMP ability to support out-of-band requests.
-#       (Please refer to qmp-spec.txt for more information on OOB)
-#
-# Since: 2.12
-#
-##
-{ 'enum': 'QMPCapability',
-  'data': [ 'oob' ] }
-
-##
-# @VersionTriple:
-#
-# A three-part version number.
-#
-# @major: The major version number.
-#
-# @minor: The minor version number.
-#
-# @micro: The micro version number.
-#
-# Since: 2.4
-##
-{ 'struct': 'VersionTriple',
-  'data': {'major': 'int', 'minor': 'int', 'micro': 'int'} }
-
-
-##
-# @VersionInfo:
-#
-# A description of QEMU's version.
-#
-# @qemu: The version of QEMU.  By current convention, a micro
-#        version of 50 signifies a development branch.  A micro version
-#        greater than or equal to 90 signifies a release candidate for
-#        the next minor version.  A micro version of less than 50
-#        signifies a stable release.
-#
-# @package: QEMU will always set this field to an empty string.  Downstream
-#           versions of QEMU should set this to a non-empty string.  The
-#           exact format depends on the downstream however it highly
-#           recommended that a unique name is used.
-#
-# Since: 0.14.0
-##
-{ 'struct': 'VersionInfo',
-  'data': {'qemu': 'VersionTriple', 'package': 'str'} }
-
-##
-# @query-version:
-#
-# Returns the current version of QEMU.
-#
-# Returns: A @VersionInfo object describing the current version of QEMU.
-#
-# Since: 0.14.0
-#
-# Example:
-#
-# -> { "execute": "query-version" }
-# <- {
-#       "return":{
-#          "qemu":{
-#             "major":0,
-#             "minor":11,
-#             "micro":5
-#          },
-#          "package":""
-#       }
-#    }
-#
-##
-{ 'command': 'query-version', 'returns': 'VersionInfo',
-  'allow-preconfig': true }
-
-##
-# @CommandInfo:
-#
-# Information about a QMP command
-#
-# @name: The command name
-#
-# Since: 0.14.0
-##
-{ 'struct': 'CommandInfo', 'data': {'name': 'str'} }
-
-##
-# @query-commands:
-#
-# Return a list of supported QMP commands by this server
-#
-# Returns: A list of @CommandInfo for all supported commands
-#
-# Since: 0.14.0
-#
-# Example:
-#
-# -> { "execute": "query-commands" }
-# <- {
-#      "return":[
-#         {
-#            "name":"query-balloon"
-#         },
-#         {
-#            "name":"system_powerdown"
-#         }
-#      ]
-#    }
-#
-# Note: This example has been shortened as the real response is too long.
-#
-##
-{ 'command': 'query-commands', 'returns': ['CommandInfo'],
-  'allow-preconfig': true }
-
 ##
 # @LostTickPolicy:
 #
@@ -312,48 +159,6 @@
 ##
 { 'command': 'query-uuid', 'returns': 'UuidInfo', 'allow-preconfig': true }
 
-##
-# @EventInfo:
-#
-# Information about a QMP event
-#
-# @name: The event name
-#
-# Since: 1.2.0
-##
-{ 'struct': 'EventInfo', 'data': {'name': 'str'} }
-
-##
-# @query-events:
-#
-# Return information on QMP events.
-#
-# Returns: A list of @EventInfo.
-#
-# Since: 1.2.0
-#
-# Note: This command is deprecated, because its output doesn't reflect
-#       compile-time configuration.  Use query-qmp-schema instead.
-#
-# Example:
-#
-# -> { "execute": "query-events" }
-# <- {
-#      "return": [
-#          {
-#             "name":"SHUTDOWN"
-#          },
-#          {
-#             "name":"RESET"
-#          }
-#       ]
-#    }
-#
-# Note: This example has been shortened as the real response is too long.
-#
-##
-{ 'command': 'query-events', 'returns': ['EventInfo'] }
-
 ##
 # @IOThreadInfo:
 #
@@ -774,23 +579,6 @@
 ##
 { 'command': 'query-pci', 'returns': ['PciInfo'] }
 
-##
-# @quit:
-#
-# This command will cause the QEMU process to exit gracefully.  While every
-# attempt is made to send the QMP response before terminating, this is not
-# guaranteed.  When using this interface, a premature EOF would not be
-# unexpected.
-#
-# Since: 0.14.0
-#
-# Example:
-#
-# -> { "execute": "quit" }
-# <- { "return": {} }
-##
-{ 'command': 'quit' }
-
 ##
 # @stop:
 #

qapi/qapi-schema.json

@@ -98,6 +98,7 @@
 { 'include': 'migration.json' }
 { 'include': 'transaction.json' }
 { 'include': 'trace.json' }
+{ 'include': 'control.json' }
 { 'include': 'introspect.json' }
 { 'include': 'qom.json' }
 { 'include': 'qdev.json' }

tests/qtest/qmp-test.c

@@ -13,7 +13,7 @@
 #include "qemu/osdep.h"
 #include "libqtest.h"
 #include "qapi/error.h"
-#include "qapi/qapi-visit-misc.h"
+#include "qapi/qapi-visit-control.h"
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qlist.h"
 #include "qapi/qobject-input-visitor.h"

ui/gtk.c

@@ -32,6 +32,7 @@
 
 #include "qemu/osdep.h"
 #include "qapi/error.h"
+#include "qapi/qapi-commands-control.h"
 #include "qapi/qapi-commands-misc.h"
 #include "qemu/cutils.h"