On 09/21/2012 11:47 AM, Juan Quintela wrote:
> It just marks a region of memory as dirty.
>
> Signed-off-by: Juan Quintela <quint...@redhat.com>
> ---
> arch_init.c | 20 +++++++++++++-------
> 1 file changed, 13 insertions(+), 7 deletions(-)
>
> diff --git a/arch_init.c b/arch_init.c
> index 57f7f1a..b2dcc24 100644
> --- a/arch_init.c
> +++ b/arch_init.c
> @@ -332,6 +332,18 @@ static int save_xbzrle_page(QEMUFile *f, uint8_t
> *current_data,
> static RAMBlock *last_block;
> static ram_addr_t last_offset;
>
> +static inline void migration_bitmap_set_dirty(MemoryRegion *mr, int length)
> +{
> + ram_addr_t addr;
> +
> + for (addr = 0; addr < length; addr += TARGET_PAGE_SIZE) {
> + if (!memory_region_get_dirty(mr, addr, TARGET_PAGE_SIZE,
> + DIRTY_MEMORY_MIGRATION)) {
> + memory_region_set_dirty(mr, addr, TARGET_PAGE_SIZE);
> + }
> + }
> +}
> +
> /*
> * ram_save_block: Writes a page of memory to the stream f
> *
> @@ -494,7 +506,6 @@ static void reset_ram_globals(void)
>
> static int ram_save_setup(QEMUFile *f, void *opaque)
> {
> - ram_addr_t addr;
> RAMBlock *block;
>
> memory_global_sync_dirty_bitmap(get_system_memory());
> @@ -516,12 +527,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
>
> /* Make sure all dirty bits are set */
> QLIST_FOREACH(block, &ram_list.blocks, next) {
> - for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
> - if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
> - DIRTY_MEMORY_MIGRATION)) {
> - memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
> - }
> - }
> + migration_bitmap_set_dirty(block->mr, block->length);
> }
>
> memory_global_dirty_log_start();
>
Reviewed-by: Orit Wasserman <owass...@redhat.com>
