diff options
| -rw-r--r-- | migration/postcopy-ram.c | 14 | ||||
| -rw-r--r-- | migration/trace-events | 1 |
2 files changed, 11 insertions, 4 deletions
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 83c36d7..6894399 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -558,7 +558,11 @@ int postcopy_request_shared_page(struct PostCopyFD *pcfd, RAMBlock *rb, trace_postcopy_request_shared_page(pcfd->idstr, qemu_ram_get_idstr(rb), rb_offset); - /* TODO: Check bitmap to see if we already have the page */ + if (ramblock_recv_bitmap_test_byte_offset(rb, aligned_rbo)) { + trace_postcopy_request_shared_page_present(pcfd->idstr, + qemu_ram_get_idstr(rb), rb_offset); + return postcopy_wake_shared(pcfd, client_addr, rb); + } if (rb != mis->last_rb) { mis->last_rb = rb; migrate_send_rp_req_pages(mis, qemu_ram_get_idstr(rb), @@ -866,7 +870,8 @@ int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from, } trace_postcopy_place_page(host); - return 0; + return postcopy_notify_shared_wake(rb, + qemu_ram_block_host_offset(rb, host)); } /* @@ -890,6 +895,9 @@ int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, return -e; } + return postcopy_notify_shared_wake(rb, + qemu_ram_block_host_offset(rb, + host)); } else { /* The kernel can't use UFFDIO_ZEROPAGE for hugepages */ if (!mis->postcopy_tmp_zero_page) { @@ -909,8 +917,6 @@ int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, return postcopy_place_page(mis, host, mis->postcopy_tmp_zero_page, rb); } - - return 0; } /* diff --git a/migration/trace-events b/migration/trace-events index b0acaaa..1e353a3 100644 --- a/migration/trace-events +++ b/migration/trace-events @@ -199,6 +199,7 @@ postcopy_ram_incoming_cleanup_entry(void) "" postcopy_ram_incoming_cleanup_exit(void) "" postcopy_ram_incoming_cleanup_join(void) "" postcopy_request_shared_page(const char *sharer, const char *rb, uint64_t rb_offset) "for %s in %s offset 0x%"PRIx64 +postcopy_request_shared_page_present(const char *sharer, const char *rb, uint64_t rb_offset) "%s already %s offset 0x%"PRIx64 postcopy_wake_shared(uint64_t client_addr, const char *rb) "at 0x%"PRIx64" in %s" save_xbzrle_page_skipping(void) "" |