Patchwork [v3,1/5] spice: notify spice server on vm start/stop

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Submitter Yonit Halperin
Date Aug. 21, 2012, 8:51 a.m.
Message ID <1345539119-26196-2-git-send-email-yhalperi@redhat.com>
Download mbox | patch
Permalink /patch/179005/
State New
Headers show

Comments

Yonit Halperin - Aug. 21, 2012, 8:51 a.m.
Spice server needs to know about the vm state in order to prevent
attempts to write to devices when they are stopped, mainly during
the non-live stage of migration.
Instead, spice will take care of restoring this writes, on the migration
target side, after migration completes.

Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
---
 ui/spice-core.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

Patch

diff --git a/ui/spice-core.c b/ui/spice-core.c
index 4fc48f8..32de1f1 100644
--- a/ui/spice-core.c
+++ b/ui/spice-core.c
@@ -545,6 +545,18 @@  static int add_channel(const char *name, const char *value, void *opaque)
     return 0;
 }
 
+static void vm_change_state_handler(void *opaque, int running,
+                                    RunState state)
+{
+#if SPICE_SERVER_VERSION >= 0x000b02 /* 0.11.2 */
+    if (running) {
+        spice_server_vm_start(spice_server);
+    } else {
+        spice_server_vm_stop(spice_server);
+    }
+#endif
+}
+
 void qemu_spice_init(void)
 {
     QemuOpts *opts = QTAILQ_FIRST(&qemu_spice_opts.head);
@@ -718,6 +730,8 @@  void qemu_spice_init(void)
     qemu_spice_input_init();
     qemu_spice_audio_init();
 
+    qemu_add_vm_change_state_handler(vm_change_state_handler, &spice_server);
+
     g_free(x509_key_file);
     g_free(x509_cert_file);
     g_free(x509_cacert_file);