On Thu, Mar 8, 2018 at 8:57 PM, Dr. David Alan Gilbert (git)
<dgilbert@redhat.com> wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> Utility for testing the map when you already know the offset
> in the RAMBlock.
>
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@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 3b6c077964..3d754422e8 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 53f0021c51..5030be110a 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
>
>
--
Marc-André Lureau