From nobody Mon Feb 9 01:19:33 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1520875760718379.51313718064296; Mon, 12 Mar 2018 10:29:20 -0700 (PDT) Received: from localhost ([::1]:33409 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1evRGB-0006MW-Qt for importer@patchew.org; Mon, 12 Mar 2018 13:29:19 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53067) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1evR8y-0008CX-8w for qemu-devel@nongnu.org; Mon, 12 Mar 2018 13:21:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1evR8x-0007cy-79 for qemu-devel@nongnu.org; Mon, 12 Mar 2018 13:21:52 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:36132 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 1evR8x-0007cc-3B for qemu-devel@nongnu.org; Mon, 12 Mar 2018 13:21:51 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B896E8424C for ; Mon, 12 Mar 2018 17:21:50 +0000 (UTC) Received: from dgilbert-t530.redhat.com (ovpn-117-169.ams2.redhat.com [10.36.117.169]) by smtp.corp.redhat.com (Postfix) with ESMTP id 809A7202322C; Mon, 12 Mar 2018 17:21:49 +0000 (UTC) From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, mst@redhat.com, maxime.coquelin@redhat.com, marcandre.lureau@redhat.com, peterx@redhat.com, quintela@redhat.com Date: Mon, 12 Mar 2018 17:21:08 +0000 Message-Id: <20180312172124.56461-14-dgilbert@redhat.com> In-Reply-To: <20180312172124.56461-1-dgilbert@redhat.com> References: <20180312172124.56461-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Mon, 12 Mar 2018 17:21:50 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Mon, 12 Mar 2018 17:21:50 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'dgilbert@redhat.com' RCPT:'' Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v5 13/29] migration/ram: ramblock_recv_bitmap_test_byte_offset X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: aarcange@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" 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 *host= _addr) rb->receivedmap); } =20 +bool ramblock_recv_bitmap_test_byte_offset(RAMBlock *rb, uint64_t byte_off= set) +{ + 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->receive= dmap); 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 *mi= s); 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_off= set); 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