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-rw-r--r--include/sysemu/sysemu.h1
-rw-r--r--migration/migration.c1
-rw-r--r--migration/savevm.c11
-rw-r--r--trace-events1
4 files changed, 11 insertions, 3 deletions
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 853d90a..ef793f7 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -84,6 +84,7 @@ void qemu_announce_self(void);
bool qemu_savevm_state_blocked(Error **errp);
void qemu_savevm_state_begin(QEMUFile *f,
const MigrationParams *params);
+void qemu_savevm_state_header(QEMUFile *f);
int qemu_savevm_state_iterate(QEMUFile *f);
void qemu_savevm_state_complete(QEMUFile *f);
void qemu_savevm_state_cancel(void);
diff --git a/migration/migration.c b/migration/migration.c
index 5d77046..438bf91 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -738,6 +738,7 @@ static void *migration_thread(void *opaque)
int64_t start_time = initial_time;
bool old_vm_running = false;
+ qemu_savevm_state_header(s->file);
qemu_savevm_state_begin(s->file, &s->params);
s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start;
diff --git a/migration/savevm.c b/migration/savevm.c
index 2b0aa65..903dbeb 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -625,6 +625,13 @@ bool qemu_savevm_state_blocked(Error **errp)
return false;
}
+void qemu_savevm_state_header(QEMUFile *f)
+{
+ trace_savevm_state_header();
+ qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
+ qemu_put_be32(f, QEMU_VM_FILE_VERSION);
+}
+
void qemu_savevm_state_begin(QEMUFile *f,
const MigrationParams *params)
{
@@ -639,9 +646,6 @@ void qemu_savevm_state_begin(QEMUFile *f,
se->ops->set_params(params, se->opaque);
}
- qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
- qemu_put_be32(f, QEMU_VM_FILE_VERSION);
-
QTAILQ_FOREACH(se, &savevm_state.handlers, entry) {
int len;
@@ -851,6 +855,7 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp)
}
qemu_mutex_unlock_iothread();
+ qemu_savevm_state_header(f);
qemu_savevm_state_begin(f, &params);
qemu_mutex_lock_iothread();
diff --git a/trace-events b/trace-events
index b64e125..1abca7a 100644
--- a/trace-events
+++ b/trace-events
@@ -1186,6 +1186,7 @@ qemu_loadvm_state_section_startfull(uint32_t section_id, const char *idstr, uint
savevm_section_start(const char *id, unsigned int section_id) "%s, section_id %u"
savevm_section_end(const char *id, unsigned int section_id, int ret) "%s, section_id %u -> %d"
savevm_state_begin(void) ""
+savevm_state_header(void) ""
savevm_state_iterate(void) ""
savevm_state_complete(void) ""
savevm_state_cancel(void) ""