[libvirt] [PATCH v4 02/37] qemu_monitor: Introduce qemuMonitorCPUModelInfo / JSON conversion

Conversion functions are used convert CPUModelInfo structs into QMP JSON and the reverse. QMP JSON is of form: {"model": {"name": "IvyBridge", "props": {}}} qemuMonitorCPUModelInfoBoolPropAdd is used to add boolean properties to CPUModelInfo struct. qemuMonitorJSONGetCPUModelExpansion makes full use of conversions and propAdd in prep to support input of full cpu model in future. Signed-off-by: Chris Venteicher <cventeic(a)redhat.com&gt; --- src/qemu/qemu_monitor.c | 24 ++++++ src/qemu/qemu_monitor.h | 5 ++ src/qemu/qemu_monitor_json.c | 154 +++++++++++++++++++++++++---------- 3 files changed, 138 insertions(+), 45 deletions(-) diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index 45a4568fcc..801c072eff 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -3764,6 +3764,30 @@ qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig) } +int +qemuMonitorCPUModelInfoBoolPropAdd(qemuMonitorCPUModelInfoPtr model, + const char *prop_name, + bool prop_value) +{ + int ret = -1; + qemuMonitorCPUProperty prop; + prop.type = QEMU_MONITOR_CPU_PROPERTY_BOOLEAN; + prop.value.boolean = prop_value; + + if (VIR_STRDUP(prop.name, prop_name) < 0) + goto cleanup; + + if (VIR_APPEND_ELEMENT(model->props, model->nprops, prop) < 0) + goto cleanup; + + ret = 0; + + cleanup: + VIR_FREE(prop.name); + return ret; +} + + int qemuMonitorGetCommands(qemuMonitorPtr mon, char ***commands) diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index d87b5a4ec0..0a09590ed1 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -1047,6 +1047,11 @@ qemuMonitorCPUModelInfoPtr qemuMonitorCPUModelInfoNew(const char *name); qemuMonitorCPUModelInfoPtr qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig); +int qemuMonitorCPUModelInfoBoolPropAdd(qemuMonitorCPUModelInfoPtr model, + const char *prop_name, + bool prop_value) + ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2); + int qemuMonitorGetCommands(qemuMonitorPtr mon, char ***commands); int qemuMonitorGetEvents(qemuMonitorPtr mon, diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 3de298c9e2..f20e9e9379 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -5505,6 +5505,101 @@ qemuMonitorJSONParseCPUModelProperty(const char *key, return 0; } + +/* model_json: {"name": "z13-base", "props": {}} + */ +static virJSONValuePtr +qemuMonitorJSONBuildCPUModelInfoToJSON(qemuMonitorCPUModelInfoPtr model) +{ + virJSONValuePtr cpu_props = NULL; + virJSONValuePtr model_json = NULL; + size_t i; + + if (!model) + goto cleanup; + + if (model->nprops > 0 && !(cpu_props = virJSONValueNewObject())) + goto cleanup; + + for (i = 0; i < model->nprops; i++) { + qemuMonitorCPUPropertyPtr prop = &(model->props[i]); + + switch (prop->type) { + case QEMU_MONITOR_CPU_PROPERTY_BOOLEAN: + if (virJSONValueObjectAppendBoolean(cpu_props, prop->name, + prop->value.boolean) < 0) + goto cleanup; + break; + + case QEMU_MONITOR_CPU_PROPERTY_STRING: + if (virJSONValueObjectAppendString(cpu_props, prop->name, + prop->value.string) < 0) + goto cleanup; + break; + + case QEMU_MONITOR_CPU_PROPERTY_NUMBER: + if (virJSONValueObjectAppendNumberLong(cpu_props, prop->name, + prop->value.number) < 0) + goto cleanup; + break; + + case QEMU_MONITOR_CPU_PROPERTY_LAST: + default: + virReportEnumRangeError(qemuMonitorCPUPropertyPtr, prop->type); + goto cleanup; + } + } + + ignore_value(virJSONValueObjectCreate(&model_json, "s:name", model->name, + "A:props", &cpu_props, NULL)); + + cleanup: + virJSONValueFree(cpu_props); + return model_json; +} + + +/* model_json: {"name": "IvyBridge", "props": {}} + */ +static qemuMonitorCPUModelInfoPtr +qemuMonitorJSONBuildCPUModelInfoFromJSON(virJSONValuePtr cpu_model) +{ + virJSONValuePtr cpu_props; + qemuMonitorCPUModelInfoPtr model = NULL; + qemuMonitorCPUModelInfoPtr ret = NULL; + char const *cpu_name; + + if (!(cpu_name = virJSONValueObjectGetString(cpu_model, "name"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Parsed JSON reply missing 'name'")); + goto cleanup; + } + + if (VIR_ALLOC(model) < 0) + goto cleanup; + + if (VIR_STRDUP(model->name, cpu_name) < 0) + goto cleanup; + + if ((cpu_props = virJSONValueObjectGetObject(cpu_model, "props"))) { + if (VIR_ALLOC_N(model->props, + virJSONValueObjectKeysNumber(cpu_props)) < 0) + goto cleanup; + + if (virJSONValueObjectForeachKeyValue(cpu_props, + qemuMonitorJSONParseCPUModelProperty, + model) < 0) + goto cleanup; + } + + VIR_STEAL_PTR(ret, model); + + cleanup: + qemuMonitorCPUModelInfoFree(model); + + return ret; +} + int qemuMonitorJSONGetCPUModelExpansion(qemuMonitorPtr mon, qemuMonitorCPUModelExpansionType type, @@ -5513,32 +5608,25 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitorPtr mon, qemuMonitorCPUModelInfoPtr *model_info) { int ret = -1; - virJSONValuePtr model = NULL; - virJSONValuePtr props = NULL; + virJSONValuePtr json_model_in = NULL; virJSONValuePtr cmd = NULL; virJSONValuePtr reply = NULL; virJSONValuePtr data; virJSONValuePtr cpu_model; - virJSONValuePtr cpu_props; - qemuMonitorCPUModelInfoPtr machine_model = NULL; - char const *cpu_name; + qemuMonitorCPUModelInfoPtr model_in = NULL; const char *typeStr = ""; *model_info = NULL; - if (!(model = virJSONValueNewObject())) + if (!(model_in = qemuMonitorCPUModelInfoNew(model_name))) goto cleanup; - if (virJSONValueObjectAppendString(model, "name", model_name) < 0) + if (!migratable && + qemuMonitorCPUModelInfoBoolPropAdd(model_in, "migratable", false) < 0) goto cleanup; - if (!migratable) { - if (!(props = virJSONValueNewObject()) || - virJSONValueObjectAppendBoolean(props, "migratable", false) < 0 || - virJSONValueObjectAppend(model, "props", props) < 0) - goto cleanup; - props = NULL; - } + if (!(json_model_in = qemuMonitorJSONBuildCPUModelInfoToJSON(model_in))) + goto cleanup; retry: switch (type) { @@ -5554,7 +5642,7 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitorPtr mon, if (!(cmd = qemuMonitorJSONMakeCommand("query-cpu-model-expansion", "s:type", typeStr, - "a:model", &model, + "a:model", &json_model_in, NULL))) goto cleanup; @@ -5585,7 +5673,9 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitorPtr mon, * on the result of the initial "static" expansion. */ if (type == QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC_FULL) { - if (!(model = virJSONValueCopy(cpu_model))) + virJSONValueFree(json_model_in); + + if (!(json_model_in = virJSONValueCopy(cpu_model))) goto cleanup; virJSONValueFree(cmd); @@ -5594,42 +5684,16 @@ qemuMonitorJSONGetCPUModelExpansion(qemuMonitorPtr mon, goto retry; } - if (!(cpu_name = virJSONValueObjectGetString(cpu_model, "name"))) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("query-cpu-model-expansion reply data was missing 'name'")); - goto cleanup; - } - - if (!(cpu_props = virJSONValueObjectGetObject(cpu_model, "props"))) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("query-cpu-model-expansion reply data was missing 'props'")); - goto cleanup; - } - - if (VIR_ALLOC(machine_model) < 0) - goto cleanup; - - if (VIR_STRDUP(machine_model->name, cpu_name) < 0) - goto cleanup; - - if (VIR_ALLOC_N(machine_model->props, virJSONValueObjectKeysNumber(cpu_props)) < 0) - goto cleanup; - - if (virJSONValueObjectForeachKeyValue(cpu_props, - qemuMonitorJSONParseCPUModelProperty, - machine_model) < 0) + if (!(*model_info = qemuMonitorJSONBuildCPUModelInfoFromJSON(cpu_model))) goto cleanup; ret = 0; - *model_info = machine_model; - machine_model = NULL; cleanup: - qemuMonitorCPUModelInfoFree(machine_model); + qemuMonitorCPUModelInfoFree(model_in); virJSONValueFree(cmd); virJSONValueFree(reply); - virJSONValueFree(model); - virJSONValueFree(props); + virJSONValueFree(json_model_in); return ret; } -- 2.17.1