From patchwork Fri Sep 18 14:52:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhijian Li (Fujitsu)\" via" X-Patchwork-Id: 11785237 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6BB9C6CA for ; Fri, 18 Sep 2020 14:57:04 +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 C347521973 for ; Fri, 18 Sep 2020 14:57:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=citrix.com header.i=@citrix.com header.b="NUM3J8jT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C347521973 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=nongnu.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:36176 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kJHos-0005LO-SL for patchwork-qemu-devel@patchwork.kernel.org; Fri, 18 Sep 2020 10:57:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41440) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kJHnK-0003cm-5L; Fri, 18 Sep 2020 10:55:27 -0400 Received: from esa2.hc3370-68.iphmx.com ([216.71.145.153]:3996) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kJHnC-0005w4-Th; Fri, 18 Sep 2020 10:55:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=citrix.com; s=securemail; t=1600440919; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=MI2M58kBJ1OEcBYbATKIFzPQ8de4fGGgBCGB9RvSrMg=; b=NUM3J8jTCMvTCI68CQa+jOkYOHJMlEzynfU61iQVXd2lxuA+vClL33q5 CqjgSD6DuQezD0jBs/BQhoqxsTlyLb9AjHibla/Ip68bF9byq3um8q+w3 BbHuBOKjx7FwUmPdm6soI7xV1/8o4ryfe0d1IsgqTxloZ7ugjziawi+6j s=; Authentication-Results: esa2.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none IronPort-SDR: 9wn8DzkPAbEk+42aOJVeszh+QmSzR9AvwPVOCi6VmW7cV2vboCHk7xkXWQNhkIbHCVz185d4To BUlLS2ddAaQO+UXpoyJPFdWHrrzsWumGuKyUKCF6MUoh4C1nwPLmh811tBylJFN6xoiPSvkDR2 YjqZZLU1SaJ/vYoe7NL4BR0IL6bJ/ogYg7RdH0VDhQDOa+9kg6gAFQw6ya7uDKNukk6mIlxWt0 aZ5O9km/hof9UHErR6905Y3AE4wwbKQsvamqU0CBf5q6LFolTywo1UUDWZeg9fEE9Ldc1an9w5 u/s= X-SBRS: 2.7 X-MesageID: 27038931 X-Ironport-Server: esa2.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.77,274,1596513600"; d="scan'208";a="27038931" To: CC: Paul Durrant , Stefano Stabellini , Anthony PERARD , John Snow , Subject: [PATCH] xen: rework pci_piix3_xen_ide_unplug Date: Fri, 18 Sep 2020 15:52:56 +0100 Message-ID: <20200918145256.1886250-1-anthony.perard@citrix.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Received-SPF: pass client-ip=216.71.145.153; envelope-from=anthony.perard@citrix.com; helo=esa2.hc3370-68.iphmx.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/18 10:55:13 X-ACL-Warn: Detected OS = FreeBSD 9.x or newer [fuzzy] X-Spam_score_int: -73 X-Spam_score: -7.4 X-Spam_bar: ------- X-Spam_report: (-7.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.999, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: Anthony PERARD X-Patchwork-Original-From: Anthony PERARD via From: "Zhijian Li (Fujitsu)\" via" This is to allow IDE disks to be unplugged when adding to QEMU via: -drive file=/root/disk_file,if=none,id=ide-disk0,format=raw -device ide-hd,drive=ide-disk0,bus=ide.0,unit=0 as the current code only works for disk added with: -drive file=/root/disk_file,if=ide,index=0,media=disk,format=raw Since the code already have the IDE controller as `dev`, we don't need to use the legacy DriveInfo to find all the drive we want to unplug. We can simply use `blk` from the controller, as it kind of was already assume to be the same, by setting it to NULL. Signed-off-by: Anthony PERARD --- hw/ide/piix.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/hw/ide/piix.c b/hw/ide/piix.c index b402a936362b..16fcbe58d6fe 100644 --- a/hw/ide/piix.c +++ b/hw/ide/piix.c @@ -164,30 +164,29 @@ static void pci_piix_ide_realize(PCIDevice *dev, Error **errp) int pci_piix3_xen_ide_unplug(DeviceState *dev, bool aux) { PCIIDEState *pci_ide; - DriveInfo *di; int i; IDEDevice *idedev; + IDEBus *idebus; + BlockBackend *blk; pci_ide = PCI_IDE(dev); for (i = aux ? 1 : 0; i < 4; i++) { - di = drive_get_by_index(IF_IDE, i); - if (di != NULL && !di->media_cd) { - BlockBackend *blk = blk_by_legacy_dinfo(di); - DeviceState *ds = blk_get_attached_dev(blk); + idebus = &pci_ide->bus[i / 2]; + blk = idebus->ifs[i % 2].blk; - blk_drain(blk); - blk_flush(blk); - - if (ds) { - blk_detach_dev(blk, ds); - } - pci_ide->bus[di->bus].ifs[di->unit].blk = NULL; + if (blk && idebus->ifs[i%2].drive_kind != IDE_CD) { if (!(i % 2)) { - idedev = pci_ide->bus[di->bus].master; + idedev = idebus->master; } else { - idedev = pci_ide->bus[di->bus].slave; + idedev = idebus->slave; } + + blk_drain(blk); + blk_flush(blk); + + blk_detach_dev(blk, DEVICE(idedev)); + idebus->ifs[i % 2].blk = NULL; idedev->conf.blk = NULL; monitor_remove_blk(blk); blk_unref(blk);