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authorMaksim Davydov <davydov-max@yandex-team.ru>2024-03-19 00:35:48 +0300
committerPhilippe Mathieu-Daudé <philmd@linaro.org>2024-04-25 10:12:40 +0200
commit236e9397b320518372a67c55777193c032b93d89 (patch)
tree234c335dcde3537e6a5b84cf52bf3be89416435b /qapi
parent443df40cad0f5de602ac6f6ca1559e0923e180b3 (diff)
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qmp: add dump machine type compatibility properties
To control that creating new machine type doesn't affect the previous types (their compat_props) and to check complex compat_props inheritance we need qmp command to print machine type compatibility properties. This patch adds the ability to get list of all the compat_props of the corresponding supported machines for their comparison via new optional argument of "query-machines" command. Since information on compatibility properties can increase the command output by a factor of 40, add an argument to enable it, default off. Signed-off-by: Maksim Davydov <davydov-max@yandex-team.ru> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Acked-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240318213550.155573-3-davydov-max@yandex-team.ru> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'qapi')
-rw-r--r--qapi/machine.json67
1 files changed, 65 insertions, 2 deletions
diff --git a/qapi/machine.json b/qapi/machine.json
index 2df407e..3e9cc3f 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -136,6 +136,26 @@
{ 'command': 'query-cpus-fast', 'returns': [ 'CpuInfoFast' ] }
##
+# @CompatProperty:
+#
+# Property default values specific to a machine type, for use by
+# scripts/compare-machine-types.
+#
+# @qom-type: name of the QOM type to which the default applies
+#
+# @property: name of its property to which the default applies
+#
+# @value: the default value (machine-specific default can overwrite
+# the "default" default, to avoid this use -machine none)
+#
+# Since: 9.1
+##
+{ 'struct': 'CompatProperty',
+ 'data': { 'qom-type': 'str',
+ 'property': 'str',
+ 'value': 'str' } }
+
+##
# @MachineInfo:
#
# Information describing a machine.
@@ -166,6 +186,14 @@
#
# @acpi: machine type supports ACPI (since 8.0)
#
+# @compat-props: The machine type's compatibility properties. Only
+# present when query-machines argument @compat-props is true.
+# (since 9.1)
+#
+# Features:
+#
+# @unstable: Member @compat-props is experimental.
+#
# Since: 1.2
##
{ 'struct': 'MachineInfo',
@@ -173,18 +201,53 @@
'*is-default': 'bool', 'cpu-max': 'int',
'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool',
'deprecated': 'bool', '*default-cpu-type': 'str',
- '*default-ram-id': 'str', 'acpi': 'bool' } }
+ '*default-ram-id': 'str', 'acpi': 'bool',
+ '*compat-props': { 'type': ['CompatProperty'],
+ 'features': ['unstable'] } } }
##
# @query-machines:
#
# Return a list of supported machines
#
+# @compat-props: if true, also return compatibility properties.
+# (default: false) (since 9.1)
+#
+# Features:
+#
+# @unstable: Argument @compat-props is experimental.
+#
# Returns: a list of MachineInfo
#
# Since: 1.2
+#
+# Example:
+#
+# -> { "execute": "query-machines", "arguments": { "compat-props": true } }
+# <- { "return": [
+# {
+# "hotpluggable-cpus": true,
+# "name": "pc-q35-6.2",
+# "compat-props": [
+# {
+# "qom-type": "virtio-mem",
+# "property": "unplugged-inaccessible",
+# "value": "off"
+# }
+# ],
+# "numa-mem-supported": false,
+# "default-cpu-type": "qemu64-x86_64-cpu",
+# "cpu-max": 288,
+# "deprecated": false,
+# "default-ram-id": "pc.ram"
+# },
+# ...
+# }
##
-{ 'command': 'query-machines', 'returns': ['MachineInfo'] }
+{ 'command': 'query-machines',
+ 'data': { '*compat-props': { 'type': 'bool',
+ 'features': [ 'unstable' ] } },
+ 'returns': ['MachineInfo'] }
##
# @CurrentMachineParams: