[PATCH v3 19/24] qemu: command: Add helper to convert vcpu definition to JSON props

[Peter Krempa <pkrempa@xxxxxxxxxx>]

For use on the monitor we need to format certain parts of the vcpu
private definition into a JSON object. Add a helper.
---

Notes:
    v2:
    - already ACKed

 src/qemu/qemu_command.c | 30 ++++++++++++++++++++++++++++++
 src/qemu/qemu_command.h |  3 +++
 2 files changed, 33 insertions(+)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index a6dea6a..28e5a7e 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -9799,3 +9799,33 @@ qemuBuildChrDeviceStr(char **deviceStr,

     return ret;
 }
+
+
+virJSONValuePtr
+qemuBuildHotpluggableCPUProps(const virDomainVcpuDef *vcpu)
+{
+    qemuDomainVcpuPrivatePtr vcpupriv = QEMU_DOMAIN_VCPU_PRIVATE(vcpu);
+    virJSONValuePtr ret = NULL;
+
+    if (virJSONValueObjectCreate(&ret, "s:driver", vcpupriv->type,
+                                       "s:id", vcpupriv->alias, NULL) < 0)
+        goto error;
+
+    if (vcpupriv->socket_id != -1 &&
+        virJSONValueObjectAdd(ret, "i:socket-id", vcpupriv->socket_id, NULL) < 0)
+        goto error;
+
+    if (vcpupriv->core_id != -1 &&
+        virJSONValueObjectAdd(ret, "i:core-id", vcpupriv->core_id, NULL) < 0)
+        goto error;
+
+    if (vcpupriv->thread_id != -1 &&
+        virJSONValueObjectAdd(ret, "i:thread-id", vcpupriv->thread_id, NULL) < 0)
+        goto error;
+
+    return ret;
+
+ error:
+    virJSONValueFree(ret);
+    return NULL;
+}
diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h
index dcf9ba6..9b9ccb6 100644
--- a/src/qemu/qemu_command.h
+++ b/src/qemu/qemu_command.h
@@ -179,4 +179,7 @@ bool qemuCheckCCWS390AddressSupport(const virDomainDef *def,
                                     virQEMUCapsPtr qemuCaps,
                                     const char *devicename);

+virJSONValuePtr qemuBuildHotpluggableCPUProps(const virDomainVcpuDef *vcpu)
+    ATTRIBUTE_NONNULL(1);
+
 #endif /* __QEMU_COMMAND_H__*/
-- 
2.8.2

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