diff options
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/ram.c | 49 | ||||
| -rw-r--r-- | migration/trace-events | 2 |
2 files changed, 46 insertions, 5 deletions
diff --git a/migration/ram.c b/migration/ram.c index 45d6c43bfe..76410f9de8 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -560,6 +560,8 @@ typedef struct { bool running; /* should this thread finish */ bool quit; + /* thread has work to do */ + int pending_job; /* array of pages to sent */ MultiFDPages_t *pages; /* packet allocated len */ @@ -595,6 +597,8 @@ typedef struct { bool running; /* should this thread finish */ bool quit; + /* thread has work to do */ + bool pending_job; /* array of pages to receive */ MultiFDPages_t *pages; /* packet allocated len */ @@ -877,8 +881,28 @@ static void *multifd_send_thread(void *opaque) while (true) { qemu_sem_wait(&p->sem); qemu_mutex_lock(&p->mutex); - multifd_send_fill_packet(p); - if (p->quit) { + + if (p->pending_job) { + uint32_t used = p->pages->used; + uint64_t packet_num = p->packet_num; + uint32_t flags = p->flags; + + multifd_send_fill_packet(p); + p->flags = 0; + p->num_packets++; + p->num_pages += used; + p->pages->used = 0; + qemu_mutex_unlock(&p->mutex); + + trace_multifd_send(p->id, packet_num, used, flags); + + /* ToDo: send packet here */ + + qemu_mutex_lock(&p->mutex); + p->pending_job--; + qemu_mutex_unlock(&p->mutex); + continue; + } else if (p->quit) { qemu_mutex_unlock(&p->mutex); break; } @@ -944,6 +968,7 @@ int multifd_save_setup(void) qemu_mutex_init(&p->mutex); qemu_sem_init(&p->sem, 0); p->quit = false; + p->pending_job = 0; p->id = i; p->pages = multifd_pages_init(page_count); p->packet_len = sizeof(MultiFDPacket_t) @@ -1031,14 +1056,27 @@ static void *multifd_recv_thread(void *opaque) while (true) { qemu_sem_wait(&p->sem); qemu_mutex_lock(&p->mutex); - if (false) { - /* ToDo: Packet reception goes here */ + if (p->pending_job) { + uint32_t used; + uint32_t flags; + qemu_mutex_unlock(&p->mutex); + + /* ToDo: recv packet here */ + qemu_mutex_lock(&p->mutex); ret = multifd_recv_unfill_packet(p, &local_err); - qemu_mutex_unlock(&p->mutex); if (ret) { + qemu_mutex_unlock(&p->mutex); break; } + + used = p->pages->used; + flags = p->flags; + trace_multifd_recv(p->id, p->packet_num, used, flags); + p->pending_job = false; + p->num_packets++; + p->num_pages += used; + qemu_mutex_unlock(&p->mutex); } else if (p->quit) { qemu_mutex_unlock(&p->mutex); break; @@ -1081,6 +1119,7 @@ int multifd_load_setup(void) qemu_mutex_init(&p->mutex); qemu_sem_init(&p->sem, 0); p->quit = false; + p->pending_job = false; p->id = i; p->pages = multifd_pages_init(page_count); p->packet_len = sizeof(MultiFDPacket_t) diff --git a/migration/trace-events b/migration/trace-events index a80aaa8b3f..4aad26feed 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -76,8 +76,10 @@ get_queued_page_not_dirty(const char *block_name, uint64_t tmp_offset, unsigned migration_bitmap_sync_start(void) "" migration_bitmap_sync_end(uint64_t dirty_pages) "dirty_pages %" PRIu64 migration_throttle(void) "" +multifd_recv(uint8_t id, uint64_t packet_num, uint32_t used, uint32_t flags) "channel %d packet number %" PRIu64 " pages %d flags 0x%x" multifd_recv_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %d packets %" PRIu64 " pages %" PRIu64 multifd_recv_thread_start(uint8_t id) "%d" +multifd_send(uint8_t id, uint64_t packet_num, uint32_t used, uint32_t flags) "channel %d packet_num %" PRIu64 " pages %d flags 0x%x" multifd_send_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %d packets %" PRIu64 " pages %" PRIu64 multifd_send_thread_start(uint8_t id) "%d" ram_discard_range(const char *rbname, uint64_t start, size_t len) "%s: start: %" PRIx64 " %zx" |