diff options
| -rw-r--r-- | include/migration/vmstate.h | 5 | ||||
| -rw-r--r-- | include/sysemu/sysemu.h | 4 | ||||
| -rw-r--r-- | migration/block.c | 7 | ||||
| -rw-r--r-- | migration/migration.c | 9 | ||||
| -rw-r--r-- | migration/ram.c | 8 | ||||
| -rw-r--r-- | migration/savevm.c | 17 | ||||
| -rw-r--r-- | trace-events | 2 |
7 files changed, 38 insertions, 14 deletions
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index 9986ccc8fa..7f16a38fc7 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -54,8 +54,9 @@ typedef struct SaveVMHandlers { /* This runs outside the iothread lock! */ int (*save_live_setup)(QEMUFile *f, void *opaque); - uint64_t (*save_live_pending)(QEMUFile *f, void *opaque, uint64_t max_size); - + void (*save_live_pending)(QEMUFile *f, void *opaque, uint64_t max_size, + uint64_t *non_postcopiable_pending, + uint64_t *postcopiable_pending); LoadStateHandler *load_state; } SaveVMHandlers; diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index c27b926615..70835d008f 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -112,7 +112,9 @@ void qemu_savevm_state_header(QEMUFile *f); int qemu_savevm_state_iterate(QEMUFile *f); void qemu_savevm_state_cleanup(void); void qemu_savevm_state_complete_precopy(QEMUFile *f); -uint64_t qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size); +void qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size, + uint64_t *res_non_postcopiable, + uint64_t *res_postcopiable); void qemu_savevm_command_send(QEMUFile *f, enum qemu_vm_cmd command, uint16_t len, uint8_t *data); void qemu_savevm_send_ping(QEMUFile *f, uint32_t value); diff --git a/migration/block.c b/migration/block.c index 4fb9b7c3a4..310e2b36dc 100644 --- a/migration/block.c +++ b/migration/block.c @@ -748,7 +748,9 @@ static int block_save_complete(QEMUFile *f, void *opaque) return 0; } -static uint64_t block_save_pending(QEMUFile *f, void *opaque, uint64_t max_size) +static void block_save_pending(QEMUFile *f, void *opaque, uint64_t max_size, + uint64_t *non_postcopiable_pending, + uint64_t *postcopiable_pending) { /* Estimate pending number of bytes to send */ uint64_t pending; @@ -767,7 +769,8 @@ static uint64_t block_save_pending(QEMUFile *f, void *opaque, uint64_t max_size) qemu_mutex_unlock_iothread(); DPRINTF("Enter save live pending %" PRIu64 "\n", pending); - return pending; + /* We don't do postcopy */ + *non_postcopiable_pending += pending; } static int block_load(QEMUFile *f, void *opaque, int version_id) diff --git a/migration/migration.c b/migration/migration.c index 7097e5bfe2..bb4c92ef93 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1288,8 +1288,13 @@ static void *migration_thread(void *opaque) uint64_t pending_size; if (!qemu_file_rate_limit(s->file)) { - pending_size = qemu_savevm_state_pending(s->file, max_size); - trace_migrate_pending(pending_size, max_size); + uint64_t pend_post, pend_nonpost; + + qemu_savevm_state_pending(s->file, max_size, &pend_nonpost, + &pend_post); + pending_size = pend_nonpost + pend_post; + trace_migrate_pending(pending_size, max_size, + pend_post, pend_nonpost); if (pending_size && pending_size >= max_size) { qemu_savevm_state_iterate(s->file); } else { diff --git a/migration/ram.c b/migration/ram.c index 4fa44a7bcf..0e5332513d 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -1383,7 +1383,9 @@ static int ram_save_complete(QEMUFile *f, void *opaque) return 0; } -static uint64_t ram_save_pending(QEMUFile *f, void *opaque, uint64_t max_size) +static void ram_save_pending(QEMUFile *f, void *opaque, uint64_t max_size, + uint64_t *non_postcopiable_pending, + uint64_t *postcopiable_pending) { uint64_t remaining_size; @@ -1397,7 +1399,9 @@ static uint64_t ram_save_pending(QEMUFile *f, void *opaque, uint64_t max_size) qemu_mutex_unlock_iothread(); remaining_size = ram_save_remaining() * TARGET_PAGE_SIZE; } - return remaining_size; + + /* We can do postcopy, and all the data is postcopiable */ + *postcopiable_pending += remaining_size; } static int load_xbzrle(QEMUFile *f, ram_addr_t addr, void *host) diff --git a/migration/savevm.c b/migration/savevm.c index f499dfa4a8..7467dc0e7b 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1053,10 +1053,19 @@ void qemu_savevm_state_complete_precopy(QEMUFile *f) qemu_fflush(f); } -uint64_t qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size) +/* Give an estimate of the amount left to be transferred, + * the result is split into the amount for units that can and + * for units that can't do postcopy. + */ +void qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size, + uint64_t *res_non_postcopiable, + uint64_t *res_postcopiable) { SaveStateEntry *se; - uint64_t ret = 0; + + *res_non_postcopiable = 0; + *res_postcopiable = 0; + QTAILQ_FOREACH(se, &savevm_state.handlers, entry) { if (!se->ops || !se->ops->save_live_pending) { @@ -1067,9 +1076,9 @@ uint64_t qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size) continue; } } - ret += se->ops->save_live_pending(f, se->opaque, max_size); + se->ops->save_live_pending(f, se->opaque, max_size, + res_non_postcopiable, res_postcopiable); } - return ret; } void qemu_savevm_state_cleanup(void) diff --git a/trace-events b/trace-events index b908c19eee..d319cf8758 100644 --- a/trace-events +++ b/trace-events @@ -1450,7 +1450,7 @@ migrate_set_state(int new_state) "new state %d" migrate_fd_cleanup(void) "" migrate_fd_error(void) "" migrate_fd_cancel(void) "" -migrate_pending(uint64_t size, uint64_t max) "pending size %" PRIu64 " max %" PRIu64 +migrate_pending(uint64_t size, uint64_t max, uint64_t post, uint64_t nonpost) "pending size %" PRIu64 " max %" PRIu64 " (post=%" PRIu64 " nonpost=%" PRIu64 ")" migrate_send_rp_message(int msg_type, uint16_t len) "%d: len %d" open_return_path_on_source(void) "" open_return_path_on_source_continue(void) "" |