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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 107E6C7618F for ; Mon, 15 Jul 2019 12:14:04 +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 D91452080A for ; Mon, 15 Jul 2019 12:14:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D91452080A 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]:37986 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmzrm-0006eP-V2 for qemu-devel@archiver.kernel.org; Mon, 15 Jul 2019 08:14:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60739) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hmzrc-0006Bv-36 for qemu-devel@nongnu.org; Mon, 15 Jul 2019 08:13:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hmzrb-0001k2-2Y for qemu-devel@nongnu.org; Mon, 15 Jul 2019 08:13:52 -0400 Received: from mx1.redhat.com ([209.132.183.28]:39758) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hmzrY-0001j0-I8; Mon, 15 Jul 2019 08:13:48 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 96C9630833A5; Mon, 15 Jul 2019 12:13:47 +0000 (UTC) Received: from x1w.redhat.com (unknown [10.40.205.87]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3FEEF5C266; Mon, 15 Jul 2019 12:13:41 +0000 (UTC) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, "Dr . David Alan Gilbert" Date: Mon, 15 Jul 2019 14:13:33 +0200 Message-Id: <20190715121338.20600-1-philmd@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.44]); Mon, 15 Jul 2019 12:13:47 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v5 0/5] hw/block/pflash_cfi01: Add DeviceReset() handler 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: Kevin Wolf , Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Last attempt before sending pull request for rc1. The pflash device lacks a reset() function. When a machine is resetted, the flash might be in an inconsistent state, leading to unexpected behavior: https://bugzilla.redhat.com/show_bug.cgi?id=3D1678713 Resolve this issue by adding a DeviceReset() handler. Fix also two minor issues, and clean a bit the codebase. Since v1: https://lists.gnu.org/archive/html/qemu-devel/2019-05/msg00962.= html - addressed Laszlo review comments Since v2: https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00395.= html - consider migration (Laszlo, Peter) Since v3: https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg01668.= html - more reliable migration (Dave) - dropped patches 6-9 not required for next release Since v4: https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg02785.= html - document why using READ_ARRAY value 0x00 for migration is safe $ git backport-diff -u v4 Key: [----] : patches are identical [####] : number of functional differences between upstream/downstream pat= ch [down] : patch is downstream-only The flags [FC] indicate (F)unctional and (C)ontextual differences, respec= tively 001/5:[----] [--] 'hw/block/pflash_cfi01: Removed an unused timer' 002/5:[----] [--] 'hw/block/pflash_cfi01: Use the correct READ_ARRAY valu= e' 003/5:[----] [--] 'hw/block/pflash_cfi01: Extract pflash_mode_read_array(= )' 004/5:[----] [--] 'hw/block/pflash_cfi01: Start state machine as READY to= accept commands' 005/5:[----] [--] 'hw/block/pflash_cfi01: Add the DeviceReset() handler' Regards, Phil. Philippe Mathieu-Daud=C3=A9 (5): hw/block/pflash_cfi01: Removed an unused timer hw/block/pflash_cfi01: Use the correct READ_ARRAY value hw/block/pflash_cfi01: Extract pflash_mode_read_array() hw/block/pflash_cfi01: Start state machine as READY to accept commands hw/block/pflash_cfi01: Add the DeviceReset() handler hw/block/pflash_cfi01.c | 109 +++++++++++++++++++++++++++------------- hw/block/trace-events | 1 + 2 files changed, 75 insertions(+), 35 deletions(-) --=20 2.20.1