From patchwork Sun May 8 10:34:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bernhard Beschow X-Patchwork-Id: 12842324 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id C7E67C433F5 for ; Sun, 8 May 2022 10:40:28 +0000 (UTC) Received: from localhost ([::1]:47314 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nneKx-0001ko-70 for qemu-devel@archiver.kernel.org; Sun, 08 May 2022 06:40:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45278) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nneFr-0007D2-PV; Sun, 08 May 2022 06:35:11 -0400 Received: from mail-ej1-x62d.google.com ([2a00:1450:4864:20::62d]:45029) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nneFp-0000HE-R4; Sun, 08 May 2022 06:35:11 -0400 Received: by mail-ej1-x62d.google.com with SMTP id i19so21826754eja.11; Sun, 08 May 2022 03:35:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=eZESDsRAqJr62NbjfLmlIhWx0VhIvAD6ZfdFOEz5AGM=; b=Lhjll1RHi/Zb27lY0LdfC2NU0MTspGZ1g1IhCbSkCed92FikO2gusIN5/2mOnoS8ts 3qfKOVB0ea3OYubzBcAI9dJysvzbq1FLfBfMZVrHqbZzjz7LxeNGS5qhIDeqUExvfDXw JGZ3M2DkWsZ1ndlmaCtghQDAhf6vcIvS0E+NRiwt69aS1OCgkp5CoyhYlBfM7Yd/HznJ sjz+HBiO+WVNOOMvzaJMvt8Z34fUqJP9Fehci0Kg8oiZxEUzpduv/3JXwizp+pvA3dUi cPxtBCqj3cetBfERSL+QjG4166uDWnNHy/pYxcavOEJcA0L616xIENxW3lEYR5HOVTHt AIyQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=eZESDsRAqJr62NbjfLmlIhWx0VhIvAD6ZfdFOEz5AGM=; b=0D3el+3xM8FxuhYmSVEMp7t+iE8JzoF2jnioYJADjZL/83OIF/+PeyL9hV01sXdPoM OaJBxJYOB66bZ/WAEvhEnRp5o6N5TV/cMBeNVimEUw/ui2ygGKZR3IgfTYvvH/Zrws+U CYa0KqdVy899si5Lc8uMpzERe/c9gvZyJ099oQ768vDU9rTAibTq5axUChk45kTuPQRy 7gStoYezhj/3PyZCJ7kOvA5x5XGAcWxFCwCxHif4sHwKSq5KQtM3HEXnRocIJvGnjXOW tooRj9juW02FAC9+aGToKSeay1ijHV6m5DBEB1ZsqR8IoAOKir8x7KYMD1nNeflVLSs5 5Fwg== X-Gm-Message-State: AOAM532ndA5BvLFk99cFHXFeg214s0yCL0L+2iJmVjNCGyQ5Mf0E+0zB wmh4GeHfgaX6f776EehvNYzgG0X9z5ngaw== X-Google-Smtp-Source: ABdhPJxpuoUCVG1Of7nUDSnSqtIVgca7LxruEMKeb6HMzXsxsDKU6VJS9VNAAgpHZB/iksxQp35r6w== X-Received: by 2002:a17:907:4c8:b0:6f3:beac:260c with SMTP id vz8-20020a17090704c800b006f3beac260cmr10182629ejb.321.1652006104817; Sun, 08 May 2022 03:35:04 -0700 (PDT) Received: from localhost.localdomain (dynamic-077-183-246-161.77.183.pool.telefonica.de. [77.183.246.161]) by smtp.gmail.com with ESMTPSA id ci18-20020a170907267200b006f388f6f927sm3901948ejc.1.2022.05.08.03.35.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 May 2022 03:35:04 -0700 (PDT) From: Bernhard Beschow To: qemu-devel@nongnu.org Cc: qemu-trivial@nongnu.org, Bernhard Beschow , Paolo Bonzini , Richard Henderson , Eduardo Habkost , "Michael S. Tsirkin" , Marcel Apfelbaum , John Snow , qemu-block@nongnu.org (open list:IDE) Subject: [PATCH 1/3] hw/ide/piix: Remove redundant "piix3-ide-xen" device class Date: Sun, 8 May 2022 12:34:30 +0200 Message-Id: <20220508103432.14874-2-shentey@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220508103432.14874-1-shentey@gmail.com> References: <20220508103432.14874-1-shentey@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::62d; envelope-from=shentey@gmail.com; helo=mail-ej1-x62d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Commit 0f8445820f11a69154309863960328dda3dc1ad4 'xen: piix reuse pci generic class init function' already resolved redundant code which in turn rendered piix3-ide-xen redundant. Signed-off-by: Bernhard Beschow --- hw/i386/pc_piix.c | 3 +-- hw/ide/piix.c | 7 ------- 2 files changed, 1 insertion(+), 9 deletions(-) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 4c185c72d0..27dfde4917 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -244,8 +244,7 @@ static void pc_init1(MachineState *machine, if (pcmc->pci_enabled) { PCIDevice *dev; - dev = pci_create_simple(pci_bus, piix3_devfn + 1, - xen_enabled() ? "piix3-ide-xen" : "piix3-ide"); + dev = pci_create_simple(pci_bus, piix3_devfn + 1, "piix3-ide"); pci_ide_create_devs(dev); idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0"); idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1"); diff --git a/hw/ide/piix.c b/hw/ide/piix.c index ce89fd0aa3..2345fe9e1d 100644 --- a/hw/ide/piix.c +++ b/hw/ide/piix.c @@ -241,12 +241,6 @@ static const TypeInfo piix3_ide_info = { .class_init = piix3_ide_class_init, }; -static const TypeInfo piix3_ide_xen_info = { - .name = "piix3-ide-xen", - .parent = TYPE_PCI_IDE, - .class_init = piix3_ide_class_init, -}; - /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */ static void piix4_ide_class_init(ObjectClass *klass, void *data) { @@ -272,7 +266,6 @@ static const TypeInfo piix4_ide_info = { static void piix_ide_register_types(void) { type_register_static(&piix3_ide_info); - type_register_static(&piix3_ide_xen_info); type_register_static(&piix4_ide_info); } From patchwork Sun May 8 10:34:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bernhard Beschow X-Patchwork-Id: 12842328 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 9E2ECC433F5 for ; Sun, 8 May 2022 10:44:36 +0000 (UTC) Received: from localhost ([::1]:55548 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nneOx-0007MQ-KF for qemu-devel@archiver.kernel.org; Sun, 08 May 2022 06:44:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45284) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nneFr-0007DV-W9; Sun, 08 May 2022 06:35:12 -0400 Received: from mail-ej1-x62f.google.com ([2a00:1450:4864:20::62f]:45031) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nneFp-0000HM-RF; Sun, 08 May 2022 06:35:11 -0400 Received: by mail-ej1-x62f.google.com with SMTP id i19so21826795eja.11; Sun, 08 May 2022 03:35:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Hp6j9E0komHwkQmjVaaJwGXlUmBw15qUD+2uycCxKRo=; b=YiwVSoCOQ6oEgvl1Yg+Ntj8QFTrWKGSY7FVACIswIb0AZM9Hwa0KXpn+LHga+sgHmk E2FWbKBau+ACjD4BP1cK5SpwJAzyocn0xnVzmGoy2OBvkGAQ+e1ZVmBApBMK4KyKxa7I gv59ow4WVTv6cpyxwy94qfuxqN+1X8ddNmNJPcR225UcN0g7JBO4hd1WEAriXcBAaihf EbTqA+bKF8vsOgUqbzO4YcIkriKvDOluwid+hN8F8UC2nIatT6LDQibHNonBDhp+XPNU zuIFWFgO8njP+lRoUomtw8SmC8np5E9NHsFv1VM1/eBwNpR9vfNti9WRBk31jXjfIg/w 3qTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Hp6j9E0komHwkQmjVaaJwGXlUmBw15qUD+2uycCxKRo=; b=SK6gvYFq3LnWSfr7O6Pu9ZXnSoR0NizOCvRdIYk2uu5hch5HZIiVKkXAEvDbFvRD5L ZjsyapBSZfdZBWw9ZUS9nFYP13EFBn5C5TZmYjJzhMfuiPAl6geaDuh+ayegTOM+BJ5T mjb0mnkzaz3wsDV+9ejVRpERDCg9iHvW/CnYz7PABLFWlH7N9ZQaZJiOaQUEfPHppALy 4MP3GvdbQXl3iicLi4UJCIz2IOll4JT0M/ApDeIOjeHfDcpUB25TOpUersx+OPwidggD du+wcMY2Ha1WUW98t0Ws5LukSpM3rBQuc+8N4nVnJIx2SKx3pZRjI/WEKvVTXfBGY51n qp7A== X-Gm-Message-State: AOAM533RqLB5BPchnMmWz7eSBGI2lP8Yhq/suzsJSHmA/8iZDaUZDtXU 4EuWlbySOyOuHWwRAEb3POqjbvHbtyNnFw== X-Google-Smtp-Source: ABdhPJys94+U3JPR6mQ+w/noafajrUFU8ZVBUI1BrO1Sg3ACmjAldGMYUy8xBZJxjI9UsxQdk/LgPw== X-Received: by 2002:a17:907:3e0f:b0:6f4:5cfd:e6bb with SMTP id hp15-20020a1709073e0f00b006f45cfde6bbmr10330510ejc.38.1652006106150; Sun, 08 May 2022 03:35:06 -0700 (PDT) Received: from localhost.localdomain (dynamic-077-183-246-161.77.183.pool.telefonica.de. [77.183.246.161]) by smtp.gmail.com with ESMTPSA id ci18-20020a170907267200b006f388f6f927sm3901948ejc.1.2022.05.08.03.35.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 May 2022 03:35:05 -0700 (PDT) From: Bernhard Beschow To: qemu-devel@nongnu.org Cc: qemu-trivial@nongnu.org, Bernhard Beschow , John Snow , qemu-block@nongnu.org (open list:IDE) Subject: [PATCH 2/3] hw/ide/piix: Add some documentation to pci_piix3_xen_ide_unplug() Date: Sun, 8 May 2022 12:34:31 +0200 Message-Id: <20220508103432.14874-3-shentey@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220508103432.14874-1-shentey@gmail.com> References: <20220508103432.14874-1-shentey@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::62f; envelope-from=shentey@gmail.com; helo=mail-ej1-x62f.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The comment is based on commit message ae4d2eb273b167dad748ea4249720319240b1ac2 'xen-platform: add missing disk unplug option'. Since it seems to describe design decisions and limitations that still apply it seems worth having. Signed-off-by: Bernhard Beschow --- hw/ide/piix.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/hw/ide/piix.c b/hw/ide/piix.c index 2345fe9e1d..bc1b37512a 100644 --- a/hw/ide/piix.c +++ b/hw/ide/piix.c @@ -173,6 +173,17 @@ static void pci_piix_ide_realize(PCIDevice *dev, Error **errp) } } +/* + * The Xen HVM unplug protocol [1] specifies a mechanism to allow guests to + * request unplug of 'aux' disks (which is stated to mean all IDE disks, + * except the primary master). + * + * NOTE: The semantics of what happens if unplug of all disks and 'aux' disks + * is simultaneously requested is not clear. The implementation assumes + * that an 'all' request overrides an 'aux' request. + * + * [1] https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=docs/misc/hvm-emulated-unplug.pandoc + */ int pci_piix3_xen_ide_unplug(DeviceState *dev, bool aux) { PCIIDEState *pci_ide; From patchwork Sun May 8 10:34:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bernhard Beschow X-Patchwork-Id: 12842325 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 3C56BC433F5 for ; Sun, 8 May 2022 10:40:58 +0000 (UTC) Received: from localhost ([::1]:48072 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nneLR-0002GZ-8L for qemu-devel@archiver.kernel.org; Sun, 08 May 2022 06:40:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45288) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nneFs-0007Em-Qr; Sun, 08 May 2022 06:35:12 -0400 Received: from mail-ej1-x62b.google.com ([2a00:1450:4864:20::62b]:43991) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nneFq-0000HV-2R; Sun, 08 May 2022 06:35:12 -0400 Received: by mail-ej1-x62b.google.com with SMTP id m20so21825944ejj.10; Sun, 08 May 2022 03:35:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ij5oGJCJI6PW/a2beKsWQ2NZIiZzUBei2wkeohldNg0=; b=qy1+i0Nrp7bat4BckqAb7DFru/UJobFqUCSHUm86RtfvAfhDDeVdEUFGwgyJcMBNMd ysRMszci8ba/1p6p4KzMGdnlcGqn9uukof7N0Zd3IaK7gq2jLk+XzRgIc/QPdH+DYeAN BitjM5O/pasuYw7o+1OD+1BPYa5jcqWsxOJo1wHXzm1xNTSXOK9rU6mWBWmNF9sEJpRD 6PSzw4TDbbxM9wK1WvAjg+poctNAhSV1ZMdliQMnSGMuC79VgWYQ3C5rljxjljJg0TcP BQcsXHoC5WJJjYEoCmlczUgj84ZX5S+0gj2QwAAlNBftxigkqrhBA1fE06FuEoorMg8C 3sEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ij5oGJCJI6PW/a2beKsWQ2NZIiZzUBei2wkeohldNg0=; b=wQzxps4KLGWhfFwBeTxTiehYXnXxM1sXfqvjvS/sMteuf3W6XVffn2xPWKWVpm6vwP INAQvYbSVY1i8nG9bBfRjDbTH1KD6fUT33gynU8FbTLY4PqDx4xqvzi1gydQSXwNzCj7 xpV2+kE8BxfFLpzSZaH6DuRs+60+VQjEEEgl8uX7xCQO0YeQoldB4Eyyi0s6hZjMJNW9 7n13++4FXJoGwkdrZTmT/pfT0r/oXn9ISRl0xuBKNVDdkF9nirsKM6CDT1LyCqq2npKj 3qzuJTMSL6+14d5gkrhA/nPrB1/3Jubv8GnIWLTZsijKEu8IZrc12xGvuYEPY1uVA92O Wfvw== X-Gm-Message-State: AOAM532gftwO+LP/AXGp7zv2RWYWzd1QgnNFfh/fGOLt2dvfkwzvwyRF Ry+NX/pISH7owF0TVR5pxuwtNCElAlleEw== X-Google-Smtp-Source: ABdhPJz2AmiXieVCbzTsOl+b158iSqM9IPIh52EIWcA9jlMcRkM1lrjwbjNUt1QadDAhCun39mirMQ== X-Received: by 2002:a17:907:7f14:b0:6f4:2a57:e1df with SMTP id qf20-20020a1709077f1400b006f42a57e1dfmr10348828ejc.18.1652006107890; Sun, 08 May 2022 03:35:07 -0700 (PDT) Received: from localhost.localdomain (dynamic-077-183-246-161.77.183.pool.telefonica.de. [77.183.246.161]) by smtp.gmail.com with ESMTPSA id ci18-20020a170907267200b006f388f6f927sm3901948ejc.1.2022.05.08.03.35.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 May 2022 03:35:07 -0700 (PDT) From: Bernhard Beschow To: qemu-devel@nongnu.org Cc: qemu-trivial@nongnu.org, Bernhard Beschow , Stefano Stabellini , Anthony Perard , Paul Durrant , "Michael S. Tsirkin" , Marcel Apfelbaum , Paolo Bonzini , Richard Henderson , Eduardo Habkost , John Snow , xen-devel@lists.xenproject.org (open list:X86 Xen CPUs), qemu-block@nongnu.org (open list:IDE) Subject: [PATCH 3/3] include/hw/ide: Unexport pci_piix3_xen_ide_unplug() Date: Sun, 8 May 2022 12:34:32 +0200 Message-Id: <20220508103432.14874-4-shentey@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220508103432.14874-1-shentey@gmail.com> References: <20220508103432.14874-1-shentey@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::62b; envelope-from=shentey@gmail.com; helo=mail-ej1-x62b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This function was declared in a generic and public header, implemented in a device-specific source file but only used in xen_platform. Given its 'aux' parameter, this function is more xen-specific than piix-specific. Also, the hardcoded magic constants seem to be generic and related to PCIIDEState and IDEBus rather than piix. Therefore, move this function to xen_platform, unexport it, and drop the "piix3" in the function name as well. Signed-off-by: Bernhard Beschow Reviewed-by: Paul Durrant --- hw/i386/xen/xen_platform.c | 49 +++++++++++++++++++++++++++++++++++++- hw/ide/piix.c | 46 ----------------------------------- include/hw/ide.h | 3 --- 3 files changed, 48 insertions(+), 50 deletions(-) diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c index 72028449ba..124ffeae35 100644 --- a/hw/i386/xen/xen_platform.c +++ b/hw/i386/xen/xen_platform.c @@ -26,6 +26,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "hw/ide.h" +#include "hw/ide/pci.h" #include "hw/pci/pci.h" #include "hw/xen/xen_common.h" #include "migration/vmstate.h" @@ -134,6 +135,52 @@ static void pci_unplug_nics(PCIBus *bus) pci_for_each_device(bus, 0, unplug_nic, NULL); } +/* + * The Xen HVM unplug protocol [1] specifies a mechanism to allow guests to + * request unplug of 'aux' disks (which is stated to mean all IDE disks, + * except the primary master). + * + * NOTE: The semantics of what happens if unplug of all disks and 'aux' disks + * is simultaneously requested is not clear. The implementation assumes + * that an 'all' request overrides an 'aux' request. + * + * [1] https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=docs/misc/hvm-emulated-unplug.pandoc + */ +static int pci_xen_ide_unplug(DeviceState *dev, bool aux) +{ + PCIIDEState *pci_ide; + int i; + IDEDevice *idedev; + IDEBus *idebus; + BlockBackend *blk; + + pci_ide = PCI_IDE(dev); + + for (i = aux ? 1 : 0; i < 4; i++) { + idebus = &pci_ide->bus[i / 2]; + blk = idebus->ifs[i % 2].blk; + + if (blk && idebus->ifs[i % 2].drive_kind != IDE_CD) { + if (!(i % 2)) { + idedev = idebus->master; + } else { + 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); + } + } + qdev_reset_all(dev); + return 0; +} + static void unplug_disks(PCIBus *b, PCIDevice *d, void *opaque) { uint32_t flags = *(uint32_t *)opaque; @@ -147,7 +194,7 @@ static void unplug_disks(PCIBus *b, PCIDevice *d, void *opaque) switch (pci_get_word(d->config + PCI_CLASS_DEVICE)) { case PCI_CLASS_STORAGE_IDE: - pci_piix3_xen_ide_unplug(DEVICE(d), aux); + pci_xen_ide_unplug(DEVICE(d), aux); break; case PCI_CLASS_STORAGE_SCSI: diff --git a/hw/ide/piix.c b/hw/ide/piix.c index bc1b37512a..9a9b28078e 100644 --- a/hw/ide/piix.c +++ b/hw/ide/piix.c @@ -173,52 +173,6 @@ static void pci_piix_ide_realize(PCIDevice *dev, Error **errp) } } -/* - * The Xen HVM unplug protocol [1] specifies a mechanism to allow guests to - * request unplug of 'aux' disks (which is stated to mean all IDE disks, - * except the primary master). - * - * NOTE: The semantics of what happens if unplug of all disks and 'aux' disks - * is simultaneously requested is not clear. The implementation assumes - * that an 'all' request overrides an 'aux' request. - * - * [1] https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=docs/misc/hvm-emulated-unplug.pandoc - */ -int pci_piix3_xen_ide_unplug(DeviceState *dev, bool aux) -{ - PCIIDEState *pci_ide; - int i; - IDEDevice *idedev; - IDEBus *idebus; - BlockBackend *blk; - - pci_ide = PCI_IDE(dev); - - for (i = aux ? 1 : 0; i < 4; i++) { - idebus = &pci_ide->bus[i / 2]; - blk = idebus->ifs[i % 2].blk; - - if (blk && idebus->ifs[i % 2].drive_kind != IDE_CD) { - if (!(i % 2)) { - idedev = idebus->master; - } else { - 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); - } - } - qdev_reset_all(dev); - return 0; -} - static void pci_piix_ide_exitfn(PCIDevice *dev) { PCIIDEState *d = PCI_IDE(dev); diff --git a/include/hw/ide.h b/include/hw/ide.h index c5ce5da4f4..60f1f4f714 100644 --- a/include/hw/ide.h +++ b/include/hw/ide.h @@ -8,9 +8,6 @@ ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq, DriveInfo *hd0, DriveInfo *hd1); -/* ide-pci.c */ -int pci_piix3_xen_ide_unplug(DeviceState *dev, bool aux); - /* ide-mmio.c */ void mmio_ide_init_drives(DeviceState *dev, DriveInfo *hd0, DriveInfo *hd1);