commit 3ac6e50943a775c545aa7d4e4bde5fcb8a163b64
Author: Jim Fehlig <jfehlig@suse.com>
Date:   Mon Jun 23 15:51:20 2014 -0600

    libxl: support domainReset
    
    Currently, libxl_send_trigger() does not implement the LIBXL_TRIGGER_RESET
    option, but domainReset can be implemented in the libxl driver by
    forcibly destroying the domain and starting it again.

Index: libvirt-4.0.0/src/libxl/libxl_driver.c
===================================================================
--- libvirt-4.0.0.orig/src/libxl/libxl_driver.c
+++ libvirt-4.0.0/src/libxl/libxl_driver.c
@@ -1382,6 +1382,61 @@ libxlDomainReboot(virDomainPtr dom, unsi
 }
 
 static int
+libxlDomainReset(virDomainPtr dom, unsigned int flags)
+{
+    libxlDriverPrivatePtr driver = dom->conn->privateData;
+    libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
+    virDomainObjPtr vm;
+    int ret = -1;
+
+    virCheckFlags(0, -1);
+
+    if (!(vm = libxlDomObjFromDomain(dom)))
+        goto cleanup;
+
+    if (virDomainResetEnsureACL(dom->conn, vm->def) < 0)
+        goto cleanup;
+
+    if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
+        goto cleanup;
+
+    if (!virDomainObjIsActive(vm)) {
+        virReportError(VIR_ERR_OPERATION_INVALID,
+                       "%s", _("Domain is not running"));
+        goto endjob;
+    }
+
+    /*
+     * The semantics of reset can be achieved by forcibly destroying
+     * the domain and starting it again.
+     */
+    if (libxl_domain_destroy(cfg->ctx, vm->def->id, NULL) < 0) {
+        virReportError(VIR_ERR_INTERNAL_ERROR,
+                       _("Failed to reset domain '%d'"), vm->def->id);
+        goto endjob;
+    }
+
+    libxlDomainCleanup(driver, vm);
+
+    if (libxlDomainStartNew(driver, vm, false) < 0) {
+        virReportError(VIR_ERR_INTERNAL_ERROR,
+                       _("Failed to start domain '%d' after reset"),
+                       vm->def->id);
+        goto endjob;
+    }
+
+    ret = 0;
+
+ endjob:
+    libxlDomainObjEndJob(driver, vm);
+
+ cleanup:
+    virDomainObjEndAPI(&vm);
+    virObjectUnref(cfg);
+    return ret;
+}
+
+static int
 libxlDomainDestroyFlags(virDomainPtr dom,
                         unsigned int flags)
 {
@@ -6498,6 +6553,7 @@ static virHypervisorDriver libxlHypervis
     .domainShutdown = libxlDomainShutdown, /* 0.9.0 */
     .domainShutdownFlags = libxlDomainShutdownFlags, /* 0.9.10 */
     .domainReboot = libxlDomainReboot, /* 0.9.0 */
+    .domainReset = libxlDomainReset, /* 1.2.16 */
     .domainDestroy = libxlDomainDestroy, /* 0.9.0 */
     .domainDestroyFlags = libxlDomainDestroyFlags, /* 0.9.4 */
     .domainGetOSType = libxlDomainGetOSType, /* 0.9.0 */