QMP, Introduce xen-set-global-dirty-log command.
This command is used during a migration of a guest under Xen. It calls
memory_global_dirty_log_start or memory_global_dirty_log_stop according to the
argument pass to the command.
Signed-off-by: Anthony PERARD <[email protected]>
Reviewed-by: Luiz Capitulino <[email protected]>
diff --git a/xen-all.c b/xen-all.c
index f76b051..f75ae9f 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -14,6 +14,7 @@
#include "hw/pc.h"
#include "hw/xen_common.h"
#include "hw/xen_backend.h"
+#include "qmp-commands.h"
#include "range.h"
#include "xen-mapcache.h"
@@ -36,6 +37,7 @@
static MemoryRegion ram_memory, ram_640k, ram_lo, ram_hi;
static MemoryRegion *framebuffer;
+static bool xen_in_migration;
/* Compatibility with older version */
#if __XEN_LATEST_INTERFACE_VERSION__ < 0x0003020a
@@ -552,10 +554,14 @@
static void xen_log_global_start(MemoryListener *listener)
{
+ if (xen_enabled()) {
+ xen_in_migration = true;
+ }
}
static void xen_log_global_stop(MemoryListener *listener)
{
+ xen_in_migration = false;
}
static void xen_eventfd_add(MemoryListener *listener,
@@ -588,6 +594,15 @@
.priority = 10,
};
+void qmp_xen_set_global_dirty_log(bool enable, Error **errp)
+{
+ if (enable) {
+ memory_global_dirty_log_start();
+ } else {
+ memory_global_dirty_log_stop();
+ }
+}
+
/* VCPU Operations, MMIO, IO ring ... */
static void xen_reset_vcpu(void *opaque)
