On Fri, Feb 16, 2018 at 01:16:09PM +0000, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <dgilb...@redhat.com>
>
> Utility for testing the map when you already know the offset
> in the RAMBlock.
>
> Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
Reviewed-by: Peter Xu <pet...@redhat.com>
> ---
> migration/ram.c | 5 +++++
> migration/ram.h | 1 +
> 2 files changed, 6 insertions(+)
>
> diff --git a/migration/ram.c b/migration/ram.c
> index 8333d8e35e..8db5e80500 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -169,6 +169,11 @@ int ramblock_recv_bitmap_test(RAMBlock *rb, void
> *host_addr)
> rb->receivedmap);
> }
>
> +bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t
> byte_offset)
> +{
> + return test_bit(byte_offset >> TARGET_PAGE_BITS, rb->receivedmap);
> +}
> +
> void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr)
> {
> set_bit_atomic(ramblock_recv_bitmap_offset(host_addr, rb),
> rb->receivedmap);
> diff --git a/migration/ram.h b/migration/ram.h
> index f3a227b4fc..63a37c4683 100644
> --- a/migration/ram.h
> +++ b/migration/ram.h
> @@ -60,6 +60,7 @@ int ram_postcopy_incoming_init(MigrationIncomingState *mis);
> void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
>
> int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr);
> +bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t
> byte_offset);
> void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr);
> void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_t
> nr);
>
> --
> 2.14.3
>
--
Peter Xu
