qemu: driver: Remove support for native->XML conversion

This code is really neglected and does not at all work reliably. It
can't even be used for converting our own commandline back.

Since this was mostly useful for aiding migration from manually run qemu
to libvirt and will not work for this puspose in many cases it's not
worth having.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

src/qemu/qemu_driver.c

@@ -43,7 +43,6 @@
 #include "qemu_conf.h"
 #include "qemu_capabilities.h"
 #include "qemu_command.h"
-#include "qemu_parse_command.h"
 #include "qemu_cgroup.h"
 #include "qemu_hostdev.h"
 #include "qemu_hotplug.h"
@@ -7318,45 +7317,20 @@ static char
 }
 
 
-static char *qemuConnectDomainXMLFromNative(virConnectPtr conn,
-                                            const char *format,
-                                            const char *config,
-                                            unsigned int flags)
+static char *
+qemuConnectDomainXMLFromNative(virConnectPtr conn,
+                               const char *format ATTRIBUTE_UNUSED,
+                               const char *config ATTRIBUTE_UNUSED,
+                               unsigned int flags)
 {
-    virQEMUDriverPtr driver = conn->privateData;
-    virDomainDefPtr def = NULL;
-    char *xml = NULL;
-    virCapsPtr caps = NULL;
-
     virCheckFlags(0, NULL);
 
     if (virConnectDomainXMLFromNativeEnsureACL(conn) < 0)
-        goto cleanup;
-
-    if (STRNEQ(format, QEMU_CONFIG_FORMAT_ARGV)) {
-        virReportError(VIR_ERR_INVALID_ARG,
-                       _("unsupported config type %s"), format);
-        goto cleanup;
-    }
-
-    if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
-        goto cleanup;
-
-    def = qemuParseCommandLineString(driver->qemuCapsCache,
-                                     caps, driver->xmlopt, config,
-                                     NULL, NULL, NULL);
-    if (!def)
-        goto cleanup;
-
-    if (!def->name && VIR_STRDUP(def->name, "unnamed") < 0)
-        goto cleanup;
-
-    xml = qemuDomainDefFormatXML(driver, def, VIR_DOMAIN_XML_INACTIVE);
+        return NULL;
 
- cleanup:
-    virDomainDefFree(def);
-    virObjectUnref(caps);
-    return xml;
+    virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+                   _("converting arbitrary QEMU command lines to libvirt domain XML is no longer supported"));
+    return NULL;
 }
 
 static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
@@ -22298,7 +22272,7 @@ static virHypervisorDriver qemuHypervisorDriver = {
     .domainGetSecurityLabelList = qemuDomainGetSecurityLabelList, /* 0.10.0 */
     .nodeGetSecurityModel = qemuNodeGetSecurityModel, /* 0.6.1 */
     .domainGetXMLDesc = qemuDomainGetXMLDesc, /* 0.2.0 */
-    .connectDomainXMLFromNative = qemuConnectDomainXMLFromNative, /* 0.6.4 */
+    .connectDomainXMLFromNative = qemuConnectDomainXMLFromNative, /* 0.6.4 (deprecated: 5.5.0) */
     .connectDomainXMLToNative = qemuConnectDomainXMLToNative, /* 0.6.4 */
     .connectListDefinedDomains = qemuConnectListDefinedDomains, /* 0.2.0 */
     .connectNumOfDefinedDomains = qemuConnectNumOfDefinedDomains, /* 0.2.0 */