diff options
| -rw-r--r-- | arch_init.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/arch_init.c b/arch_init.c index fa470515db..90a722e6c9 100644 --- a/arch_init.c +++ b/arch_init.c @@ -331,6 +331,19 @@ static int save_xbzrle_page(QEMUFile *f, uint8_t *current_data, static RAMBlock *last_block; static ram_addr_t last_offset; +static inline bool migration_bitmap_test_and_reset_dirty(MemoryRegion *mr, + ram_addr_t offset) +{ + bool ret = memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE, + DIRTY_MEMORY_MIGRATION); + + if (ret) { + memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE, + DIRTY_MEMORY_MIGRATION); + } + return ret; +} + static inline void migration_bitmap_set_dirty(MemoryRegion *mr, int length) { ram_addr_t addr; @@ -364,14 +377,10 @@ static int ram_save_block(QEMUFile *f, bool last_stage) do { mr = block->mr; - if (memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE, - DIRTY_MEMORY_MIGRATION)) { + if (migration_bitmap_test_and_reset_dirty(mr, offset)) { uint8_t *p; int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0; - memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE, - DIRTY_MEMORY_MIGRATION); - p = memory_region_get_ram_ptr(mr) + offset; if (is_dup_page(p)) { |