From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28D02C33CB1 for ; Tue, 14 Jan 2020 11:58:36 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E7F9124672 for ; Tue, 14 Jan 2020 11:58:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="G6zdPIr5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E7F9124672 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38032 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1irKqA-0002eI-KT for qemu-devel@archiver.kernel.org; Tue, 14 Jan 2020 06:58:34 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:56142) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1irKa2-000752-Jd for qemu-devel@nongnu.org; Tue, 14 Jan 2020 06:41:55 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1irKZy-0003Uh-QR for qemu-devel@nongnu.org; Tue, 14 Jan 2020 06:41:54 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:60596 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1irKZy-0003UR-Gy for qemu-devel@nongnu.org; Tue, 14 Jan 2020 06:41:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579002109; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3VZqz3zUF2Y1jQsm5V0KLQ63Ic05gunHzewXnrdXRG4=; b=G6zdPIr5N2uY3Njo/3QT2QVz3YKDoyJZ9kMpKkshXRpj5S1O+D4kfmuwgp8up2aTxdL3Hb DtSRPGUMPdhgYlUh1tGslh8rTQPqsIcp8J36BN6TmTkBtbQ9NZFJiPKwKw93+6/IWPRA0/ NCQLNR5QS8i/YDIEYM07c/HTkQ0vF2Q= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-398-mFPCDuHyNjyvmv79iySHSg-1; Tue, 14 Jan 2020 06:41:47 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AAE3618CA242; Tue, 14 Jan 2020 11:41:45 +0000 (UTC) Received: from secure.mitica (ovpn-116-207.ams2.redhat.com [10.36.116.207]) by smtp.corp.redhat.com (Postfix) with ESMTP id 373CA5DA70; Tue, 14 Jan 2020 11:41:41 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Subject: [PULL 18/30] migration/postcopy: set all_zero to true on the first target page Date: Tue, 14 Jan 2020 12:39:14 +0100 Message-Id: <20200114113926.3556-19-quintela@redhat.com> In-Reply-To: <20200114113926.3556-1-quintela@redhat.com> References: <20200114113926.3556-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: mFPCDuHyNjyvmv79iySHSg-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=US-ASCII 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: 205.139.110.61 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Peter Maydell , Thomas Huth , Corey Minyard , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , Juan Quintela , Stefan Weil , Richard Henderson , "Michael S. Tsirkin" , "Dr. David Alan Gilbert" , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Wei Yang , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , David Gibson , Jason Wang , Stefan Berger Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Wei Yang For the first target page, all_zero is set to true for this round check. After target_pages introduced, we could leverage this variable instead of checking the address offset. Signed-off-by: Wei Yang Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela --- migration/ram.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/migration/ram.c b/migration/ram.c index 8ebaea255e..460abfa2c3 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -4102,7 +4102,7 @@ static int ram_load_postcopy(QEMUFile *f) page_buffer =3D postcopy_host_page + ((uintptr_t)host & (block->page_size - 1)); /* If all TP are zero then we can optimise the place */ - if (!((uintptr_t)host & (block->page_size - 1))) { + if (target_pages =3D=3D 1) { all_zero =3D true; } else { /* not the 1st TP within the HP */ --=20 2.24.1