Merge remote-tracking branch 'remotes/sstabellini/tags/xen-migration-2.4-tag' into staging

xen-migration-2.4

# gpg: Signature made Mon 03 Aug 2015 17:18:36 BST using RSA key ID 70E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"

* remotes/sstabellini/tags/xen-migration-2.4-tag:
  migration: Fix regression for xenfv and pc,accel=xen machine.
  migration: Fix global state with Xen.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

include/migration/migration.h

@@ -203,4 +203,5 @@ void register_global_state(void);
 void global_state_set_optional(void);
 void savevm_skip_configuration(void);
 int global_state_store(void);
+void global_state_store_running(void);
 #endif

migration/migration.c

@@ -122,6 +122,13 @@ int global_state_store(void)
     return 0;
 }
 
+void global_state_store_running(void)
+{
+    const char *state = RunState_lookup[RUN_STATE_RUNNING];
+    strncpy((char *)global_state.runstate,
+           state, sizeof(global_state.runstate));
+}
+
 static bool global_state_received(void)
 {
     return global_state.received;

migration/savevm.c

@@ -1394,6 +1394,7 @@ void qmp_xen_save_devices_state(const char *filename, Error **errp)
 
     saved_vm_running = runstate_is_running();
     vm_stop(RUN_STATE_SAVE_VM);
+    global_state_store_running();
 
     f = qemu_fopen(filename, "wb");
     if (!f) {

xen-common.c

@@ -12,6 +12,7 @@
 #include "qmp-commands.h"
 #include "sysemu/char.h"
 #include "sysemu/accel.h"
+#include "migration/migration.h"
 
 //#define DEBUG_XEN
 
@@ -119,6 +120,10 @@ static int xen_init(MachineState *ms)
     }
     qemu_add_vm_change_state_handler(xen_change_state_handler, NULL);
 
+    global_state_set_optional();
+    savevm_skip_configuration();
+    savevm_skip_section_footers();
+
     return 0;
 }