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 compatible 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.
Signed-off-by: Maksim Davydov <davydov-...@yandex-team.ru> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsement...@yandex-team.ru> --- hw/core/machine-qmp-cmds.c | 22 ++++++++++++++- qapi/machine.json | 54 +++++++++++++++++++++++++++++++++++-- tests/qtest/fuzz/qos_fuzz.c | 2 +- 3 files changed, 74 insertions(+), 4 deletions(-) diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c index 4f4ab30f8c..a6fc387439 100644 --- a/hw/core/machine-qmp-cmds.c +++ b/hw/core/machine-qmp-cmds.c @@ -74,7 +74,8 @@ CpuInfoFastList *qmp_query_cpus_fast(Error **errp) return head; } -MachineInfoList *qmp_query_machines(Error **errp) +MachineInfoList *qmp_query_machines(bool has_compat_props, bool compat_props, + Error **errp) { GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false); MachineInfoList *mach_list = NULL; @@ -107,6 +108,25 @@ MachineInfoList *qmp_query_machines(Error **errp) info->default_ram_id = g_strdup(mc->default_ram_id); info->has_default_ram_id = true; } + if (compat_props && mc->compat_props) { + int i; + info->compat_props = NULL; + CompatPropertyList **tail = &(info->compat_props); + info->has_compat_props = true; + + for (i = 0; i < mc->compat_props->len; i++) { + GlobalProperty *mt_prop = g_ptr_array_index(mc->compat_props, + i); + CompatProperty *prop; + + prop = g_malloc0(sizeof(*prop)); + prop->driver = g_strdup(mt_prop->driver); + prop->property = g_strdup(mt_prop->property); + prop->value = g_strdup(mt_prop->value); + + QAPI_LIST_APPEND(tail, prop); + } + } QAPI_LIST_PREPEND(mach_list, info); } diff --git a/qapi/machine.json b/qapi/machine.json index b9228a5e46..07d3b01358 100644 --- a/qapi/machine.json +++ b/qapi/machine.json @@ -127,6 +127,25 @@ ## { 'command': 'query-cpus-fast', 'returns': [ 'CpuInfoFast' ] } +## +# @CompatProperty: +# +# Machine type compatible property. It's based on GlobalProperty and created +# for machine type compat properties (see scripts) +# +# @driver: name of the driver that has GlobalProperty +# +# @property: global property name +# +# @value: global property value +# +# Since: 7.2 +## +{ 'struct': 'CompatProperty', + 'data': { 'driver': 'str', + 'property': 'str', + 'value': 'str' } } + ## # @MachineInfo: # @@ -155,6 +174,9 @@ # # @default-ram-id: the default ID of initial RAM memory backend (since 5.2) # +# @compat-props: List of compatible properties that defines machine type +# (since 7.2) +# # Since: 1.2 ## { 'struct': 'MachineInfo', @@ -162,18 +184,46 @@ '*is-default': 'bool', 'cpu-max': 'int', 'hotpluggable-cpus': 'bool', 'numa-mem-supported': 'bool', 'deprecated': 'bool', '*default-cpu-type': 'str', - '*default-ram-id': 'str' } } + '*default-ram-id': 'str', '*compat-props': ['CompatProperty'] } } ## # @query-machines: # # Return a list of supported machines # +# @compat-props: if true return will contain information about machine type +# compatible properties (since 7.2) +# # 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": [ +# { +# "driver": "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': 'bool' }, + 'returns': ['MachineInfo'] } ## # @CurrentMachineParams: diff --git a/tests/qtest/fuzz/qos_fuzz.c b/tests/qtest/fuzz/qos_fuzz.c index 3a3d9c16dd..9420f950fd 100644 --- a/tests/qtest/fuzz/qos_fuzz.c +++ b/tests/qtest/fuzz/qos_fuzz.c @@ -46,7 +46,7 @@ static void qos_set_machines_devices_available(void) MachineInfoList *mach_info; ObjectTypeInfoList *type_info; - mach_info = qmp_query_machines(&error_abort); + mach_info = qmp_query_machines(false, false, &error_abort); machines_apply_to_node(mach_info); qapi_free_MachineInfoList(mach_info); -- 2.25.1