diff options
Diffstat (limited to 'include/migration/migration.h')
| -rw-r--r-- | include/migration/migration.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/migration/migration.h b/include/migration/migration.h index 1046d4e370..1491bf32ed 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -105,6 +105,18 @@ MigrationIncomingState *migration_incoming_get_current(void); MigrationIncomingState *migration_incoming_state_new(QEMUFile *f); void migration_incoming_state_destroy(void); +/* + * An outstanding page request, on the source, having been received + * and queued + */ +struct MigrationSrcPageRequest { + RAMBlock *rb; + hwaddr offset; + hwaddr len; + + QSIMPLEQ_ENTRY(MigrationSrcPageRequest) next_req; +}; + struct MigrationState { int64_t bandwidth_limit; @@ -141,6 +153,12 @@ struct MigrationState /* Flag set once the migration thread is running (and needs joining) */ bool migration_thread_running; + + /* Queue of outstanding page requests from the destination */ + QemuMutex src_page_req_mutex; + QSIMPLEQ_HEAD(src_page_requests, MigrationSrcPageRequest) src_page_requests; + /* The RAMBlock used in the last src_page_request */ + RAMBlock *last_req_rb; }; void process_incoming_migration(QEMUFile *f); @@ -288,6 +306,10 @@ void savevm_skip_configuration(void); int global_state_store(void); void global_state_store_running(void); +void flush_page_queue(MigrationState *ms); +int ram_save_queue_pages(MigrationState *ms, const char *rbname, + ram_addr_t start, ram_addr_t len); + PostcopyState postcopy_state_get(void); /* Set the state and return the old state */ PostcopyState postcopy_state_set(PostcopyState new_state); |