@@ -54,4 +54,6 @@ bool migration_has_finished(MigrationState *);
bool migration_has_failed(MigrationState *);
/* ...and after the device transmission */
bool migration_in_postcopy_after_devices(MigrationState *);
+void migration_only_migratable_set(bool only_migratable);
+
#endif
@@ -15,7 +15,6 @@
/* vl.c */
extern const char *bios_name;
-extern int only_migratable;
extern const char *qemu_name;
extern QemuUUID qemu_uuid;
extern bool qemu_uuid_set;
@@ -110,6 +110,11 @@ MigrationState *migrate_get_current(void)
return current_migration;
}
+void migration_only_migratable_set(bool only_migratable)
+{
+ migrate_get_current()->only_migratable = only_migratable;
+}
+
MigrationIncomingState *migration_incoming_get_current(void)
{
static bool once;
@@ -981,7 +986,7 @@ static GSList *migration_blockers;
int migrate_add_blocker(Error *reason, Error **errp)
{
- if (only_migratable) {
+ if (migrate_get_current()->only_migratable) {
error_propagate(errp, error_copy(reason));
error_prepend(errp, "disallowing migration blocker "
"(--only_migratable) for: ");
@@ -1979,6 +1984,7 @@ void migrate_fd_connect(MigrationState *s)
static Property migration_properties[] = {
DEFINE_PROP_BOOL("store-global-state", MigrationState,
store_global_state, true),
+ DEFINE_PROP_BOOL("only-migratable", MigrationState, only_migratable, false),
DEFINE_PROP_END_OF_LIST(),
};
@@ -139,6 +139,9 @@ struct MigrationState
* during migration.
*/
bool store_global_state;
+
+ /* Whether the VM is only allowing for migratable devices */
+ bool only_migratable;
};
void migrate_set_state(int *state, int old_state, int new_state);
@@ -2303,7 +2303,7 @@ void vmstate_register_ram_global(MemoryRegion *mr)
bool vmstate_check_only_migratable(const VMStateDescription *vmsd)
{
/* check needed if --only-migratable is specified */
- if (!only_migratable) {
+ if (!migrate_get_current()->only_migratable) {
return true;
}
@@ -188,7 +188,6 @@ bool boot_strict;
uint8_t *boot_splash_filedata;
size_t boot_splash_filedata_size;
uint8_t qemu_extra_params_fw[2];
-int only_migratable; /* turn it off unless user states otherwise */
int icount_align_option;
@@ -3916,7 +3915,13 @@ int main(int argc, char **argv, char **envp)
incoming = optarg;
break;
case QEMU_OPTION_only_migratable:
- only_migratable = 1;
+ /*
+ * TODO: we can remove this option one day, and we
+ * should all use:
+ *
+ * "-global migration.only-migratable=true"
+ */
+ migration_only_migratable_set(true);
break;
case QEMU_OPTION_nodefaults:
has_defaults = 0;
One less global variable, and it does only matter with migration. We keep the old "--only-migratable" option, but also now we support: -global migration.only-migratable=true Currently still keep the old interface. Hmm, now vl.c has no way to access migrate_get_current(). Export a function for it to setup only_migratable. Signed-off-by: Peter Xu <peterx@redhat.com> --- include/migration/misc.h | 2 ++ include/sysemu/sysemu.h | 1 - migration/migration.c | 8 +++++++- migration/migration.h | 3 +++ migration/savevm.c | 2 +- vl.c | 9 +++++++-- 6 files changed, 20 insertions(+), 5 deletions(-)