[PATCH 054/103] qemu: command: Introduce helper for building JSON props of -device into commandline
The helper converts the JSON object to a string and adds it to the
current command as arguments of '-device'. The helper also prepares for
'-device' taking JSON directly.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_command.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index d27e8b2648..9c8a3a85af 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -221,6 +221,33 @@ qemuBuildNetdevCommandlineFromJSON(virCommand *cmd,
}
+static G_GNUC_UNUSED int
+qemuBuildDeviceCommandlineFromJSON(virCommand *cmd,
+ virJSONValue *props,
+ virQEMUCaps *qemuCaps)
+{
+ g_autofree char *arg = NULL;
+
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_JSON)) {
+ if (!(arg = virJSONValueToString(props, false)))
+ return -1;
+ } else {
+ const char *driver = virJSONValueObjectGetString(props, "driver");
+ g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
+
+ virBufferAsprintf(&buf, "%s,", driver);
+
+ if (virQEMUBuildCommandLineJSON(props, &buf, "driver", NULL) <
0)
+ return -1;
+
+ arg = virBufferContentAndReset(&buf);
+ }
+
+ virCommandAddArgList(cmd, "-device", arg, NULL);
+ return 0;
+}
+
+
/**
* qemuBuildMasterKeyCommandLine:
* @cmd: the command to modify
--
2.31.1