From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41812) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ew51t-0003Gd-4u for qemu-devel@nongnu.org; Wed, 14 Mar 2018 07:57:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ew51s-0004k1-EM for qemu-devel@nongnu.org; Wed, 14 Mar 2018 07:57:13 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:40904 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ew51s-0004js-AC for qemu-devel@nongnu.org; Wed, 14 Mar 2018 07:57:12 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CE2E08182D16 for ; Wed, 14 Mar 2018 11:57:11 +0000 (UTC) From: "Dr. David Alan Gilbert (git)" Date: Wed, 14 Mar 2018 11:56:02 +0000 Message-Id: <20180314115618.28831-14-dgilbert@redhat.com> In-Reply-To: <20180314115618.28831-1-dgilbert@redhat.com> References: <20180314115618.28831-1-dgilbert@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v6 13/29] 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, mst@redhat.com, maxime.coquelin@redhat.com, marcandre.lureau@redhat.com, peterx@redhat.com, quintela@redhat.com Cc: 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 Reviewed-by: Peter Xu Reviewed-by: Marc-Andr=C3=A9 Lureau --- migration/ram.c | 5 +++++ migration/ram.h | 1 + 2 files changed, 6 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index 7266351fd0..6ce7770b8c 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -169,6 +169,11 @@ int ramblock_recv_bitmap_test(RAMBlock *rb, void *ho= st_addr) rb->receivedmap); } =20 +bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_o= ffset) +{ + 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->recei= vedmap); 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); =20 int ramblock_recv_bitmap_test(RAMBlock *rb, void *host_addr); +bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_o= ffset); void ramblock_recv_bitmap_set(RAMBlock *rb, void *host_addr); void ramblock_recv_bitmap_set_range(RAMBlock *rb, void *host_addr, size_= t nr); =20 --=20 2.14.3