[PATCH 4/5] qemu: add machine vmport argument

[Marc-André Lureau <marcandre.lureau@xxxxxxxxx>]

Fill qemu command line vmport argument as required.
---
 src/qemu/qemu_command.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index e94caea..22df0ad 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7311,6 +7311,7 @@ qemuBuildMachineArgStr(virCommandPtr cmd,
         obsoleteAccel = true;
     } else {
         virBuffer buf = VIR_BUFFER_INITIALIZER;
+        virTristateSwitch vmport = def->features[VIR_DOMAIN_FEATURE_VMPORT];
 
         virCommandAddArg(cmd, "-machine");
         virBufferAdd(&buf, def->os.machine, -1);
@@ -7328,6 +7329,19 @@ qemuBuildMachineArgStr(virCommandPtr cmd,
         if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_USB_OPT))
             virBufferAddLit(&buf, ",usb=off");
 
+        if (vmport) {
+            if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_VMPORT_OPT)) {
+                virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                               _("vmport is not available "
+                                 "with this QEMU binary"));
+                virBufferFreeAndReset(&buf);
+                return -1;
+            }
+
+            virBufferAsprintf(&buf, ",vmport=%s",
+                              virTristateSwitchTypeToString(vmport));
+        }
+
         if (def->mem.dump_core) {
             if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DUMP_GUEST_CORE)) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-- 
2.1.0

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