From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40179) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dQIDM-0004Io-Q5 for qemu-devel@nongnu.org; Wed, 28 Jun 2017 15:01:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dQIDL-0007zg-WC for qemu-devel@nongnu.org; Wed, 28 Jun 2017 15:01:24 -0400 Received: from mx1.redhat.com ([209.132.183.28]:56429) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dQIDL-0007zQ-Qu for qemu-devel@nongnu.org; Wed, 28 Jun 2017 15:01:23 -0400 From: "Dr. David Alan Gilbert (git)" Date: Wed, 28 Jun 2017 20:00:22 +0100 Message-Id: <20170628190047.26159-5-dgilbert@redhat.com> In-Reply-To: <20170628190047.26159-1-dgilbert@redhat.com> References: <20170628190047.26159-1-dgilbert@redhat.com> Subject: [Qemu-devel] [RFC 04/29] migration/ram: ramblock_recv_bitmap_test_byte_offset List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, a.perevalov@samsung.com, marcandre.lureau@redhat.com, maxime.coquelin@redhat.com, mst@redhat.com, quintela@redhat.com, peterx@redhat.com, lvivier@redhat.com, aarcange@redhat.com From: "Dr. David Alan Gilbert" Utility for testing the map when you already know the offset in the RAMBlock. Signed-off-by: Dr. David Alan Gilbert --- migration/ram.c | 5 +++++ migration/ram.h | 1 + 2 files changed, 6 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index 3daa69b2c3..6dcb9e8b43 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -165,6 +165,11 @@ int ramblock_recv_bitmap_test(void *host_addr, RAMBlock *rb) rb->receivedmap); } +bool ramblock_recv_bitmap_test_byte_offset(uint64_t byte_offset, RAMBlock *rb) +{ + return test_bit(byte_offset >> TARGET_PAGE_BITS, rb->receivedmap); +} + void ramblock_recv_bitmap_set(void *host_addr, RAMBlock *rb) { set_bit_atomic(ramblock_recv_bitmap_offset(host_addr, rb), rb->receivedmap); diff --git a/migration/ram.h b/migration/ram.h index 98d68df03d..0fcf85d904 100644 --- a/migration/ram.h +++ b/migration/ram.h @@ -55,6 +55,7 @@ void ram_handle_compressed(void *host, uint8_t ch, uint64_t size); void ramblock_recv_map_init(void); int ramblock_recv_bitmap_test(void *host_addr, RAMBlock *rb); +bool ramblock_recv_bitmap_test_byte_offset(uint64_t byte_offset, RAMBlock *rb); void ramblock_recv_bitmap_set(void *host_addr, RAMBlock *rb); void ramblock_recv_bitmap_clear(void *host_addr, RAMBlock *rb); -- 2.13.0