On Mon, Oct 23, 2023 at 05:36:02PM -0300, Fabiano Rosas wrote:
> We'll need to set the shadow_bmap bits from outside ram.c soon and
> TARGET_PAGE_BITS is poisoned, so add a wrapper to it.
>
> Signed-off-by: Fabiano Rosas <faro...@suse.de>
Merge this into existing patch to add ram.c usage?
> ---
> migration/ram.c | 5 +++++
> migration/ram.h | 1 +
> 2 files changed, 6 insertions(+)
>
> diff --git a/migration/ram.c b/migration/ram.c
> index cea6971ab2..8e34c1b597 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -3160,6 +3160,11 @@ static void ram_save_shadow_bmap(QEMUFile *f)
> }
> }
>
> +void ramblock_set_shadow_bmap_atomic(RAMBlock *block, ram_addr_t offset)
> +{
> + set_bit_atomic(offset >> TARGET_PAGE_BITS, block->shadow_bmap);
> +}
> +
> /**
> * ram_save_iterate: iterative stage for migration
> *
> diff --git a/migration/ram.h b/migration/ram.h
> index 145c915ca7..1acadffb06 100644
> --- a/migration/ram.h
> +++ b/migration/ram.h
> @@ -75,6 +75,7 @@ int ram_dirty_bitmap_reload(MigrationState *s, RAMBlock
> *rb);
> bool ramblock_page_is_discarded(RAMBlock *rb, ram_addr_t start);
> void postcopy_preempt_shutdown_file(MigrationState *s);
> void *postcopy_preempt_thread(void *opaque);
> +void ramblock_set_shadow_bmap_atomic(RAMBlock *block, ram_addr_t offset);
>
> /* ram cache */
> int colo_init_ram_cache(void);
> --
> 2.35.3
>
--
Peter Xu
