#include "qemu/osdep.h"
#include "qemu/cutils.h"
#include "qemu/error-report.h"
+#include "qemu/main-loop.h"
#include "migration/blocker.h"
#include "exec.h"
#include "fd.h"
#include "migration/vmstate.h"
#include "block/block.h"
#include "qapi/error.h"
+#include "qapi/clone-visitor.h"
+#include "qapi/qapi-visit-sockets.h"
#include "qapi/qapi-commands-migration.h"
#include "qapi/qapi-events-migration.h"
#include "qapi/qmp/qerror.h"
/* The delay time (in ms) between two COLO checkpoints */
#define DEFAULT_MIGRATE_X_CHECKPOINT_DELAY (200 * 100)
#define DEFAULT_MIGRATE_MULTIFD_CHANNELS 2
-#define DEFAULT_MIGRATE_MULTIFD_PAGE_COUNT 16
/* Background transfer rate for postcopy, 0 means unlimited, note
* that page requests can still exceed this limit.
static int migration_maybe_pause(MigrationState *s,
int *current_active_state,
int new_state);
+static void migrate_fd_cancel(MigrationState *s);
void migration_object_init(void)
{
}
}
-void migration_object_finalize(void)
+void migration_shutdown(void)
{
+ /*
+ * Cancel the current migration - that will (eventually)
+ * stop the migration using this structure
+ */
+ migrate_fd_cancel(current_migration);
object_unref(OBJECT(current_migration));
}
}
qemu_event_reset(&mis->main_thread_load_event);
+
+ if (mis->socket_address_list) {
+ qapi_free_SocketAddressList(mis->socket_address_list);
+ mis->socket_address_list = NULL;
+ }
}
static void migrate_generate_event(int new_state)
migration_colo_enabled = true;
}
+void migrate_add_address(SocketAddress *address)
+{
+ MigrationIncomingState *mis = migration_incoming_get_current();
+ SocketAddressList *addrs;
+
+ addrs = g_new0(SocketAddressList, 1);
+ addrs->next = mis->socket_address_list;
+ mis->socket_address_list = addrs;
+ addrs->value = QAPI_CLONE(SocketAddress, address);
+}
+
void qemu_start_incoming_migration(const char *uri, Error **errp)
{
const char *p;
* This must happen after all error conditions are dealt with and
* we're sure the VM is going to be running on this host.
*/
- qemu_announce_self();
+ qemu_announce_self(&mis->announce_timer, migrate_announce_params());
if (multifd_load_cleanup(&local_err) != 0) {
error_report_err(local_err);
} else {
runstate_set(RUN_STATE_PAUSED);
}
+ } else if (migration_incoming_colo_enabled()) {
+ migration_incoming_disable_colo();
+ vm_start();
} else {
runstate_set(global_state_get_runstate());
}
params->tls_creds = g_strdup(s->parameters.tls_creds);
params->has_tls_hostname = true;
params->tls_hostname = g_strdup(s->parameters.tls_hostname);
+ params->has_tls_authz = true;
+ params->tls_authz = g_strdup(s->parameters.tls_authz);
params->has_max_bandwidth = true;
params->max_bandwidth = s->parameters.max_bandwidth;
params->has_downtime_limit = true;
params->x_checkpoint_delay = s->parameters.x_checkpoint_delay;
params->has_block_incremental = true;
params->block_incremental = s->parameters.block_incremental;
- params->has_x_multifd_channels = true;
- params->x_multifd_channels = s->parameters.x_multifd_channels;
- params->has_x_multifd_page_count = true;
- params->x_multifd_page_count = s->parameters.x_multifd_page_count;
+ params->has_multifd_channels = true;
+ params->multifd_channels = s->parameters.multifd_channels;
params->has_xbzrle_cache_size = true;
params->xbzrle_cache_size = s->parameters.xbzrle_cache_size;
params->has_max_postcopy_bandwidth = true;
error_setg(errp, "Postcopy is not supported");
return false;
}
+
+ if (cap_list[MIGRATION_CAPABILITY_X_IGNORE_SHARED]) {
+ error_setg(errp, "Postcopy is not compatible with ignore-shared");
+ return false;
+ }
}
return true;
{
MigrationIncomingState *mis = migration_incoming_get_current();
+ if (mis->socket_address_list) {
+ info->has_socket_address = true;
+ info->socket_address =
+ QAPI_CLONE(SocketAddressList, mis->socket_address_list);
+ }
+
switch (mis->state) {
case MIGRATION_STATUS_NONE:
return;
/* x_checkpoint_delay is now always positive */
- if (params->has_x_multifd_channels && (params->x_multifd_channels < 1)) {
+ if (params->has_multifd_channels && (params->multifd_channels < 1)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
"multifd_channels",
"is invalid, it should be in the range of 1 to 255");
return false;
}
- if (params->has_x_multifd_page_count &&
- (params->x_multifd_page_count < 1 ||
- params->x_multifd_page_count > 10000)) {
- error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
- "multifd_page_count",
- "is invalid, it should be in the range of 1 to 10000");
- return false;
- }
if (params->has_xbzrle_cache_size &&
(params->xbzrle_cache_size < qemu_target_page_size() ||
if (params->has_block_incremental) {
dest->block_incremental = params->block_incremental;
}
- if (params->has_x_multifd_channels) {
- dest->x_multifd_channels = params->x_multifd_channels;
- }
- if (params->has_x_multifd_page_count) {
- dest->x_multifd_page_count = params->x_multifd_page_count;
+ if (params->has_multifd_channels) {
+ dest->multifd_channels = params->multifd_channels;
}
if (params->has_xbzrle_cache_size) {
dest->xbzrle_cache_size = params->xbzrle_cache_size;
s->parameters.tls_hostname = g_strdup(params->tls_hostname->u.s);
}
+ if (params->has_tls_authz) {
+ g_free(s->parameters.tls_authz);
+ assert(params->tls_authz->type == QTYPE_QSTRING);
+ s->parameters.tls_authz = g_strdup(params->tls_authz->u.s);
+ }
+
if (params->has_max_bandwidth) {
s->parameters.max_bandwidth = params->max_bandwidth;
- if (s->to_dst_file) {
+ if (s->to_dst_file && !migration_in_postcopy()) {
qemu_file_set_rate_limit(s->to_dst_file,
s->parameters.max_bandwidth / XFER_LIMIT_RATIO);
}
if (params->has_block_incremental) {
s->parameters.block_incremental = params->block_incremental;
}
- if (params->has_x_multifd_channels) {
- s->parameters.x_multifd_channels = params->x_multifd_channels;
- }
- if (params->has_x_multifd_page_count) {
- s->parameters.x_multifd_page_count = params->x_multifd_page_count;
+ if (params->has_multifd_channels) {
+ s->parameters.multifd_channels = params->multifd_channels;
}
if (params->has_xbzrle_cache_size) {
s->parameters.xbzrle_cache_size = params->xbzrle_cache_size;
}
if (params->has_max_postcopy_bandwidth) {
s->parameters.max_postcopy_bandwidth = params->max_postcopy_bandwidth;
+ if (s->to_dst_file && migration_in_postcopy()) {
+ qemu_file_set_rate_limit(s->to_dst_file,
+ s->parameters.max_postcopy_bandwidth / XFER_LIMIT_RATIO);
+ }
}
if (params->has_max_cpu_throttle) {
s->parameters.max_cpu_throttle = params->max_cpu_throttle;
}
}
-static void migrate_fd_cleanup(void *opaque)
+static void migrate_fd_cleanup(MigrationState *s)
{
- MigrationState *s = opaque;
-
qemu_bh_delete(s->cleanup_bh);
s->cleanup_bh = NULL;
block_cleanup_parameters(s);
}
+static void migrate_fd_cleanup_schedule(MigrationState *s)
+{
+ /*
+ * Ref the state for bh, because it may be called when
+ * there're already no other refs
+ */
+ object_ref(OBJECT(s));
+ qemu_bh_schedule(s->cleanup_bh);
+}
+
+static void migrate_fd_cleanup_bh(void *opaque)
+{
+ MigrationState *s = opaque;
+ migrate_fd_cleanup(s);
+ object_unref(OBJECT(s));
+}
+
void migrate_set_error(MigrationState *s, const Error *error)
{
qemu_mutex_lock(&s->error_mutex);
bool migration_is_idle(void)
{
- MigrationState *s = migrate_get_current();
+ MigrationState *s = current_migration;
+
+ if (!s) {
+ return true;
+ }
switch (s->state) {
case MIGRATION_STATUS_NONE:
* locks.
*/
s->bytes_xfer = 0;
- s->xfer_limit = 0;
s->cleanup_bh = 0;
s->to_dst_file = NULL;
s->state = MIGRATION_STATUS_NONE;
int migrate_add_blocker(Error *reason, Error **errp)
{
- if (migrate_get_current()->only_migratable) {
+ if (only_migratable) {
error_propagate_prepend(errp, error_copy(reason),
"disallowing migration blocker "
- "(--only_migratable) for: ");
+ "(--only-migratable) for: ");
return -EACCES;
}
return s->enabled_capabilities[MIGRATION_CAPABILITY_DIRTY_BITMAPS];
}
-bool migrate_use_events(void)
+bool migrate_ignore_shared(void)
{
MigrationState *s;
s = migrate_get_current();
- return s->enabled_capabilities[MIGRATION_CAPABILITY_EVENTS];
+ return s->enabled_capabilities[MIGRATION_CAPABILITY_X_IGNORE_SHARED];
}
-bool migrate_use_multifd(void)
+bool migrate_use_events(void)
{
MigrationState *s;
s = migrate_get_current();
- return s->enabled_capabilities[MIGRATION_CAPABILITY_X_MULTIFD];
+ return s->enabled_capabilities[MIGRATION_CAPABILITY_EVENTS];
}
-bool migrate_pause_before_switchover(void)
+bool migrate_use_multifd(void)
{
MigrationState *s;
s = migrate_get_current();
- return s->enabled_capabilities[
- MIGRATION_CAPABILITY_PAUSE_BEFORE_SWITCHOVER];
+ return s->enabled_capabilities[MIGRATION_CAPABILITY_MULTIFD];
}
-int migrate_multifd_channels(void)
+bool migrate_pause_before_switchover(void)
{
MigrationState *s;
s = migrate_get_current();
- return s->parameters.x_multifd_channels;
+ return s->enabled_capabilities[
+ MIGRATION_CAPABILITY_PAUSE_BEFORE_SWITCHOVER];
}
-int migrate_multifd_page_count(void)
+int migrate_multifd_channels(void)
{
MigrationState *s;
s = migrate_get_current();
- return s->parameters.x_multifd_page_count;
+ return s->parameters.multifd_channels;
}
int migrate_use_xbzrle(void)
static MigThrError migration_detect_error(MigrationState *s)
{
int ret;
+ int state = s->state;
+
+ if (state == MIGRATION_STATUS_CANCELLING ||
+ state == MIGRATION_STATUS_CANCELLED) {
+ /* End the migration, but don't set the state to failed */
+ return MIG_THR_ERR_FATAL;
+ }
/* Try to detect any file errors */
ret = qemu_file_get_error(s->to_dst_file);
return MIG_THR_ERR_NONE;
}
- if (s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE && ret == -EIO) {
+ if (state == MIGRATION_STATUS_POSTCOPY_ACTIVE && ret == -EIO) {
/*
* For postcopy, we allow the network to be down for a
* while. After that, it can be continued by a
* For precopy (or postcopy with error outside IO), we fail
* with no time.
*/
- migrate_set_state(&s->state, s->state, MIGRATION_STATUS_FAILED);
+ migrate_set_state(&s->state, state, MIGRATION_STATUS_FAILED);
trace_migration_thread_file_err();
/* Time to stop the migration, now. */
error_report("%s: Unknown ending state %d", __func__, s->state);
break;
}
- qemu_bh_schedule(s->cleanup_bh);
+ migrate_fd_cleanup_schedule(s);
qemu_mutex_unlock_iothread();
}
rcu_register_thread();
+ object_ref(OBJECT(s));
s->iteration_start_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
qemu_savevm_state_header(s->to_dst_file);
trace_migration_thread_after_loop();
migration_iteration_finish(s);
+ object_unref(OBJECT(s));
rcu_unregister_thread();
return NULL;
}
bool resume = s->state == MIGRATION_STATUS_POSTCOPY_PAUSED;
s->expected_downtime = s->parameters.downtime_limit;
- s->cleanup_bh = qemu_bh_new(migrate_fd_cleanup, s);
+ s->cleanup_bh = qemu_bh_new(migrate_fd_cleanup_bh, s);
if (error_in) {
migrate_fd_error(s, error_in);
migrate_fd_cleanup(s);
monitor_printf(mon, "store-global-state: %s\n",
ms->store_global_state ? "on" : "off");
monitor_printf(mon, "only-migratable: %s\n",
- ms->only_migratable ? "on" : "off");
+ only_migratable ? "on" : "off");
monitor_printf(mon, "send-configuration: %s\n",
ms->send_configuration ? "on" : "off");
monitor_printf(mon, "send-section-footer: %s\n",
ms->send_section_footer ? "on" : "off");
monitor_printf(mon, "decompress-error-check: %s\n",
ms->decompress_error_check ? "on" : "off");
+ monitor_printf(mon, "clear-bitmap-shift: %u\n",
+ ms->clear_bitmap_shift);
}
#define DEFINE_PROP_MIG_CAP(name, x) \
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_BOOL("send-configuration", MigrationState,
send_configuration, true),
DEFINE_PROP_BOOL("send-section-footer", MigrationState,
send_section_footer, true),
DEFINE_PROP_BOOL("decompress-error-check", MigrationState,
decompress_error_check, true),
+ DEFINE_PROP_UINT8("x-clear-bitmap-shift", MigrationState,
+ clear_bitmap_shift, CLEAR_BITMAP_SHIFT_DEFAULT),
/* Migration parameters */
DEFINE_PROP_UINT8("x-compress-level", MigrationState,
DEFINE_PROP_UINT32("x-checkpoint-delay", MigrationState,
parameters.x_checkpoint_delay,
DEFAULT_MIGRATE_X_CHECKPOINT_DELAY),
- DEFINE_PROP_UINT8("x-multifd-channels", MigrationState,
- parameters.x_multifd_channels,
+ DEFINE_PROP_UINT8("multifd-channels", MigrationState,
+ parameters.multifd_channels,
DEFAULT_MIGRATE_MULTIFD_CHANNELS),
- DEFINE_PROP_UINT32("x-multifd-page-count", MigrationState,
- parameters.x_multifd_page_count,
- DEFAULT_MIGRATE_MULTIFD_PAGE_COUNT),
DEFINE_PROP_SIZE("xbzrle-cache-size", MigrationState,
parameters.xbzrle_cache_size,
DEFAULT_MIGRATE_XBZRLE_CACHE_SIZE),
DEFINE_PROP_MIG_CAP("x-release-ram", MIGRATION_CAPABILITY_RELEASE_RAM),
DEFINE_PROP_MIG_CAP("x-block", MIGRATION_CAPABILITY_BLOCK),
DEFINE_PROP_MIG_CAP("x-return-path", MIGRATION_CAPABILITY_RETURN_PATH),
- DEFINE_PROP_MIG_CAP("x-multifd", MIGRATION_CAPABILITY_X_MULTIFD),
+ DEFINE_PROP_MIG_CAP("x-multifd", MIGRATION_CAPABILITY_MULTIFD),
DEFINE_PROP_END_OF_LIST(),
};
params->has_downtime_limit = true;
params->has_x_checkpoint_delay = true;
params->has_block_incremental = true;
- params->has_x_multifd_channels = true;
- params->has_x_multifd_page_count = true;
+ params->has_multifd_channels = true;
params->has_xbzrle_cache_size = true;
params->has_max_postcopy_bandwidth = true;
params->has_max_cpu_throttle = true;
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