diff options
Diffstat (limited to 'migration/ram.c')
| -rw-r--r-- | migration/ram.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/migration/ram.c b/migration/ram.c index 52fc032b83..08eb382f53 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3147,7 +3147,7 @@ static int ram_load_postcopy(QEMUFile *f) /* Temporary page that is later 'placed' */ void *postcopy_host_page = mis->postcopy_tmp_page; void *this_host = NULL; - bool all_zero = false; + bool all_zero = true; int target_pages = 0; while (!ret && !(flags & RAM_SAVE_FLAG_EOS)) { @@ -3174,7 +3174,6 @@ static int ram_load_postcopy(QEMUFile *f) addr &= TARGET_PAGE_MASK; trace_ram_load_postcopy_loop((uint64_t)addr, flags); - place_needed = false; if (flags & (RAM_SAVE_FLAG_ZERO | RAM_SAVE_FLAG_PAGE | RAM_SAVE_FLAG_COMPRESS_PAGE)) { block = ram_block_from_stream(f, flags); @@ -3199,9 +3198,7 @@ static int ram_load_postcopy(QEMUFile *f) */ page_buffer = postcopy_host_page + ((uintptr_t)host & (block->page_size - 1)); - /* If all TP are zero then we can optimise the place */ if (target_pages == 1) { - all_zero = true; this_host = (void *)QEMU_ALIGN_DOWN((uintptr_t)host, block->page_size); } else { @@ -3221,7 +3218,6 @@ static int ram_load_postcopy(QEMUFile *f) */ if (target_pages == (block->page_size / TARGET_PAGE_SIZE)) { place_needed = true; - target_pages = 0; } place_source = postcopy_host_page; } @@ -3303,6 +3299,10 @@ static int ram_load_postcopy(QEMUFile *f) ret = postcopy_place_page(mis, place_dest, place_source, block); } + place_needed = false; + target_pages = 0; + /* Assume we have a zero page until we detect something different */ + all_zero = true; } } |