[Xen-changelog] [xen-unstable] libxl_dom: Call the right switch logdirty for the right DM.

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Anthony PERARD <anthony.perard@xxxxxxxxxx>
# Date 1349693136 -3600
# Node ID 08fac5c2bf3dcbc493ce45091383f6ce1938f369
# Parent  d4aec9eff7e6d15c2805957af620c82555553b3e
libxl_dom: Call the right switch logdirty for the right DM.

This patch dispatch the switch logdirty call depending on which device model
version is running.

The call to qemu-xen right now is synchronous, not like the one to
qemu-xen-traditional.

Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Committed-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---


diff -r d4aec9eff7e6 -r 08fac5c2bf3d tools/libxl/libxl_dom.c
--- a/tools/libxl/libxl_dom.c   Mon Oct 08 11:45:35 2012 +0100
+++ b/tools/libxl/libxl_dom.c   Mon Oct 08 11:45:36 2012 +0100
@@ -685,10 +685,10 @@ static void logdirty_init(libxl__logdirt
     libxl__ev_time_init(&lds->timeout);
 }
 
-void libxl__domain_suspend_common_switch_qemu_logdirty
-                               (int domid, unsigned enable, void *user)
+static void domain_suspend_switch_qemu_xen_traditional_logdirty
+                               (int domid, unsigned enable,
+                                libxl__save_helper_state *shs)
 {
-    libxl__save_helper_state *shs = user;
     libxl__egc *egc = shs->egc;
     libxl__domain_suspend_state *dss = CONTAINER_OF(shs, *dss, shs);
     libxl__logdirty_switch *lds = &dss->logdirty;
@@ -756,6 +756,45 @@ void libxl__domain_suspend_common_switch
     switch_logdirty_done(egc,dss,-1);
 }
 
+static void domain_suspend_switch_qemu_xen_logdirty
+                               (int domid, unsigned enable,
+                                libxl__save_helper_state *shs)
+{
+    libxl__egc *egc = shs->egc;
+    libxl__domain_suspend_state *dss = CONTAINER_OF(shs, *dss, shs);
+    STATE_AO_GC(dss->ao);
+    int rc;
+
+    rc = libxl__qmp_set_global_dirty_log(gc, domid, enable);
+    if (!rc) {
+        libxl__xc_domain_saverestore_async_callback_done(egc, shs, 0);
+    } else {
+        LOG(ERROR,"logdirty switch failed (rc=%d), aborting suspend",rc);
+        libxl__xc_domain_saverestore_async_callback_done(egc, shs, -1);
+    }
+}
+
+void libxl__domain_suspend_common_switch_qemu_logdirty
+                               (int domid, unsigned enable, void *user)
+{
+    libxl__save_helper_state *shs = user;
+    libxl__egc *egc = shs->egc;
+    libxl__domain_suspend_state *dss = CONTAINER_OF(shs, *dss, shs);
+    STATE_AO_GC(dss->ao);
+
+    switch (libxl__device_model_version_running(gc, domid)) {
+    case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL:
+        domain_suspend_switch_qemu_xen_traditional_logdirty(domid, enable, 
shs);
+        break;
+    case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
+        domain_suspend_switch_qemu_xen_logdirty(domid, enable, shs);
+        break;
+    default:
+        LOG(ERROR,"logdirty switch failed"
+            ", no valid device model version found, aborting suspend");
+        libxl__xc_domain_saverestore_async_callback_done(egc, shs, -1);
+    }
+}
 static void switch_logdirty_timeout(libxl__egc *egc, libxl__ev_time *ev,
                                     const struct timeval *requested_abs)
 {

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog