From patchwork Wed May 15 07:14:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: CLEMENT MATHIEU--DRIF X-Patchwork-Id: 13664773 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 0512FC25B77 for ; Wed, 15 May 2024 07:17:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s78qa-0004bf-I9; Wed, 15 May 2024 03:14:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s78qK-0004Xk-14 for qemu-devel@nongnu.org; Wed, 15 May 2024 03:14:29 -0400 Received: from smarthost1.eviden.com ([80.78.11.82]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s78qF-0000pL-Uc for qemu-devel@nongnu.org; Wed, 15 May 2024 03:14:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=eviden.com; i=@eviden.com; q=dns/txt; s=mail; t=1715757264; x=1747293264; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=RCojRL0EejAMJ9/fcfk7FzAhNuHzVs08KnMU7NdYJV0=; b=ps1CYm3UDwIh8vWcHoLvNA7MNWDibBiSTL0iv5hknYmj6nijL4PKCNab e8UkJ34zK1WW1yhX+W8cYA7fzhNtyyeKbpEd7FKLAp+qFJjcinXSakiA6 c52YidwA05BgbDM2eBxGaakeS8nyL3R/FXyMvpZMF6xfnKe9C4i4b+fmg aVoj9TGwYKen4XthjN59UryQOSM06NIM4oq4NZdrwn95pW8l2JIvz7rzR L3Dxwz4iRlpuXyr/O+hdv8WY/Ls0RwQnHIG/OtV15nbQZAzUPP+xZGojq 4zN7xj/ASSyZaOV5mxGx3OAs4/i/1+a/tiQXEgqfPOoWss+BHpgQbhtRW w==; X-IronPort-AV: E=Sophos;i="6.08,161,1712613600"; d="scan'208";a="12580202" X-MGA-submission: MDHUVgm7ZeognavAQFZ7F/aIbJ7lQew7Z5DCRAcm57q5cN1D2UJPLtWB6uOkRIqISFImQl5Bi7cOjh8EUMPqGgFcCBZ+k9iZnx3GE36rGSAtpHbpAsUBZ7MqxANtc5JGAIoww58UkynohpN28Hjts4Y39OYYW2IYcWV2iXVucI7zWQ== Received: from mail-db8eur05lp2104.outbound.protection.outlook.com (HELO EUR05-DB8-obe.outbound.protection.outlook.com) ([104.47.17.104]) by smarthost1.eviden.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 May 2024 09:14:19 +0200 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=d5O66+J9G1xfWzOaOHIsOVCprHXtfmMxNO/f4pJBcNeiU+xRVuFJ550VlIK54zB8wfVE+6YPNKxuH+Fh7STen+/b6ohT6o/2zckz7UX/4L8h1/TBJlL2noueGZtL2tSzkz1eTsrkZPodPWhluRXaFTkCXqj0gj9uulmfTMv1stThZMDOeWZyrB9PfseAtKpYpkKjRDlrz2bOSkfxLDiWjYwAjGvEFzJeMVcXA/ilB0KGWMhLZX06otrJKTLxEJ/0eCrIRbBAsvZCLe+GZIu9S2g68qTdMsHRchYkcncLVY05KAobFfA+nLYYg19ygUAoATKsw+/Nh5PmUFQVETHaJA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=RCojRL0EejAMJ9/fcfk7FzAhNuHzVs08KnMU7NdYJV0=; b=JoADzLKZi4vHku5Y/+zetgkgGqvtQDGDwdzNH1RlkAFmfPXrxCu/mDfLRTMbg4ipFzyeSnR7A1WDMPgmFNrGjyeu5qDyEdUI7DSmPskcm7S/nNNxZC5Y38tkf+xUlEealjtH1EkepDAUPPi4VHyh4mUxnKLokaj2HlY6FxRzb7TlefPfkK0CdEOH0+qFzYOrzRzwpLmc7izmzqifCP6o+AgoX0slpCKR9uHDw3gyL+UpIdfAsEVPfK0bIVfrUZ3MNzZgr/lvdiUxAGOs46lZa6XwpUM3KP+EOivySeeARVckZvhFaIHldsA0ymulCJVKEvqU87ND35yMueizJxMFYw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=eviden.com; dmarc=pass action=none header.from=eviden.com; dkim=pass header.d=eviden.com; arc=none Received: from AM8PR07MB7602.eurprd07.prod.outlook.com (2603:10a6:20b:24b::7) by AS5PR07MB9896.eurprd07.prod.outlook.com (2603:10a6:20b:676::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7544.55; Wed, 15 May 2024 07:14:16 +0000 Received: from AM8PR07MB7602.eurprd07.prod.outlook.com ([fe80::fbd7:ca71:b636:6f9d]) by AM8PR07MB7602.eurprd07.prod.outlook.com ([fe80::fbd7:ca71:b636:6f9d%5]) with mapi id 15.20.7544.056; Wed, 15 May 2024 07:14:16 +0000 From: CLEMENT MATHIEU--DRIF To: "qemu-devel@nongnu.org" CC: "jasowang@redhat.com" , "zhenzhong.duan@intel.com" , "kevin.tian@intel.com" , "yi.l.liu@intel.com" , "joao.m.martins@oracle.com" , "peterx@redhat.com" , CLEMENT MATHIEU--DRIF Subject: [PATCH ats_vtd v2 10/25] pcie: helper functions to check if PASID and ATS are enabled Thread-Topic: [PATCH ats_vtd v2 10/25] pcie: helper functions to check if PASID and ATS are enabled Thread-Index: AQHappd/ggmcqc5wPk6vSoBAbpA6Gg== Date: Wed, 15 May 2024 07:14:16 +0000 Message-ID: <20240515071057.33990-11-clement.mathieu--drif@eviden.com> References: <20240515071057.33990-1-clement.mathieu--drif@eviden.com> In-Reply-To: <20240515071057.33990-1-clement.mathieu--drif@eviden.com> Accept-Language: en-GB, fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=eviden.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: AM8PR07MB7602:EE_|AS5PR07MB9896:EE_ x-ms-office365-filtering-correlation-id: 1450162d-34c5-4d5c-260b-08dc74aea1ae x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; ARA:13230031|376005|366007|1800799015|38070700009; x-microsoft-antispam-message-info: =?utf-8?q?g56pxaPEMyNTx/6dqHbvx5j4CCxelDb?= =?utf-8?q?u74ESRsISDFbOmUGmahhiEtoODt1vtLdeEXJ58oiKS4YRZXxIaa0pHegokeqkrbN9?= =?utf-8?q?lTkGUyDknWDd4gZlfqw7GOe69C5RVF0i36p19GW3bqYRu0mFLshzlIoAWrwZKPulu?= =?utf-8?q?0xfepKbhsgmIDK91DkZLAOku25W7//QAEoduRrVQHzjTM25PrjRmgZaEOGyGw3yRu?= =?utf-8?q?dV3aWwWh9WGksDpPB0e7ZnLldCO+NNKwvVZCMaqRPmVL/MX/VAxCqjucCu9mXL1F+?= =?utf-8?q?wsIfptUh1qFuAQ48Kc9HYpkpeAAQTJLTZjO+k6qoNTvwGTW6KPxEndQ0FsQc1eAN9?= =?utf-8?q?7VudVkWMGIov2bi4EsIAQQ144intIy3NL8Rgg+oWy7MjJrIVybDZfps05pTVGOsFZ?= =?utf-8?q?XhZbltiWU51nz80EYhDQX+4m+mWDdE4+fYmTLJTtCzl1xFcKtG1YxXHwQm1rNiVT5?= =?utf-8?q?P9jp9UEbXP3z6IRQ85weMVEq/4wfgD1cMTOqNlczDgSd5Ejuh5j3AUl1OvRCnAtNE?= =?utf-8?q?fxG/X0t0+rPRYNm/CJmw7W3kbcJodluL3EidKbNMQWnhEUSMZPqOgDrvVllPPWa17?= =?utf-8?q?hHfsn3krJiQG6+MbvubXGa6XO81OPSY7HO+tdQHilDjR63ofADrysT3Ih+hUKdCWY?= =?utf-8?q?s+AQ1Mv4mVsAcFUUTh2cOkIS0jZKAB5svxrPc0ChS3YFauaTR2ECp98+vzZcT/x0B?= =?utf-8?q?QcW4I4hmrHnlXEHwc0RpESQOylVs+OlxxZm/uzr3+IxOadi3lCx5VyQ3kbr1OHcI7?= =?utf-8?q?jFFedk09nObKza3mM1YEBW/3H7MZvyQs1AmhSPH1PrutRBvI15Uuq5r/dHradGFtt?= =?utf-8?q?K/fbH3P/lCIvmsxwmZ9mVnFxkZVLtcyVIbUvc5BYGjoKZi04R5ttdrdgXTXaeIDCv?= =?utf-8?q?O4dgFMbEFqePGIlhhp2vxBaOEzHKA7fxZoOCkef5UTrbyFjBXlevClNF9+GXCQ/5z?= =?utf-8?q?8BD2fFton3gC/pmXS1BGdjT0YWeKp5xOs5Q8K25SMkrpTN2roOQfDDbR7VSnqK+Kp?= =?utf-8?q?dOsYMtHoxXlxJ1omEYv91JsmKxLIYu2oFpkCMEHdDEW/fZ91gZS3148hwLpAC+1iF?= =?utf-8?q?1UN/c4/ffbb/jO493ZKTE3gSdx+XzIc8kifse3+2r5KrUWCsrWgRV4LRc6xJ5ueLy?= =?utf-8?q?4D/8hW/Q+T2fejSZHRleJR+XkH0AH7nIRhPGZxSqHEfTukZr3bwp2ipe1iV+8K7ej?= =?utf-8?q?3Mk0RoXWhifdJWnJsQJZMwiyeBpLINhAW2BLP0Cxpe/iGmvl6IDCFvCdAsX1acg/X?= =?utf-8?q?DorKB4YgI8KiYdpqx0RoYXVWcwlKrwX1LGQ=3D=3D?= x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM8PR07MB7602.eurprd07.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230031)(376005)(366007)(1800799015)(38070700009); DIR:OUT; SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?q?8f/+3KnmCiea906ESGIYXXE2TVhB?= =?utf-8?q?SzKNjyxJAizQfIvjPb0YGRVHmqnjcST7BU6/46GxMRnQVOy2YYFX3mWA/flkm0wJQ?= =?utf-8?q?mf5Kju3h2//zgeOvb6zKzL1ItqCobxQY8Qwkszyfl0O0mK38GrUfyA+OryHymydxt?= =?utf-8?q?wbMHTHMCBcmjV6RX5skvrQ6ZWWwRo3ziBXvf47MVkCfIhyv2GG8MHcJmZWqmXAXz6?= =?utf-8?q?k55CYnqQn2rJMZtjT4DGkzU+jyKXpzAomvj88LHQ3KV3haDUXrttRTvjVJux5dIAh?= =?utf-8?q?/kza7y1GD3d8vVXx4kl5kafzdyWdxT3f9LQCRJ13rdazW3li+ZQfEw0xZODUxi+au?= =?utf-8?q?U3uob9ajnKMOsE8daNbWDyXJXL3znKmCC4ZbLQLNDcm2akql0oxsdX8FQGNhDh+M4?= =?utf-8?q?oyVwTYuooRstZ7MMaj95+5c4E2wQNPtJSuCE6XGQlqNzFJBE09ttYrz6Kq6hB1ebV?= =?utf-8?q?/m+Ka39IsXU2GetGman62mJxc5vowOptl3ZqFg/FF2jCLg2MiObR3a5XCuDQrZAqc?= =?utf-8?q?vgIHv/kYQ37eIa7M5H6Ax8NOxDqOleN4kWohWlB5Ua2nHdPvxv9uvUekD1Rl8s0dY?= =?utf-8?q?gNoUqv1LU+WAJmu8cxWJqOru0iTR7pk2+f2ZQl8vvwJBTtji1P8RAo6HuzoVox5VC?= =?utf-8?q?y95f4zGFrkkWHErtcgpmOoHpaZBZSuHdnhWFM4pzj9elOFgnL4IeCU0PUxYO8s58S?= =?utf-8?q?XbdhwRgITFg1LB4hOfDCc0v3ZoO22NH67tm/UZmlc1/6JCAV1rRDT1frIq1lAo9Ht?= =?utf-8?q?dawMB+UEAkemMm8uWYS7UCB0n/Ta4oF07kKXen/KD6C31yV0n4aU84UuxLbtxjo7n?= =?utf-8?q?D0si7pF6xCFY/k5efE6cxglHsdkOT5b3o5yWH4Jh3mMheRpf2dAkwnhP+/OJ0yFlG?= =?utf-8?q?xDIcBffFAx4AufwjpYUtQyUEulzcrAKNUrBVF+dhSvLshcabqETnUIoOo/BQy/zzm?= =?utf-8?q?OUNrMDw2e5oIqAoEk7IKi9qDbbOXMUsMDGbmUINZEic7fRtxYd1ZuoUtD3pcltOxt?= =?utf-8?q?AwzT/a2m9DPFmnHfBLbKTgBd84GKDhke6ZhL32+Za/cguESpQp347u8gG1DND70Wd?= =?utf-8?q?NVcAkuiKMnuT+w5JzsAAq1gHYyZHYpdk83dFbnFJ3Ad8Su2f07lkI5S3DqSOqjrp+?= =?utf-8?q?A8OK42g1GNKgd3Kcwn/2fJGGk1gtGoIttuFkxSrj1EsoQBGtYOY9QT+lJHq/Jr0Da?= =?utf-8?q?3Lwg3Te56yKgC9f8zbmMq/mCT55gPXwc6p7ZloWG5PYrinFfQ/pOb/6CIuuqsLnRa?= =?utf-8?q?gUKxgWcDUsBS02pOZd14SsugU3/bVedLPj7LHvFiguStwvlquc0qmvKS59xjI/j+o?= =?utf-8?q?sFjmBtMQjcnCP439yfmSJIqc5ugOtHvItKVz9QlAt28QtOLULUSdJ6/x2p5ZZzaP3?= =?utf-8?q?0WyMHbQp9ZMB/aB/r3eiyDWfEIwnQsaWazqTuqxLoApgKn9IUtOyhRxsWgfWukUHc?= =?utf-8?q?GCHnyNeCaZS0Pne/PLxqzugXTXzMavhf/ANH3/jBCKX7Koppf0MQbEktEMIdUbo5q?= =?utf-8?q?31eZ9/l4SZBXGGDGUyZ0TFdeufiFRM/PvNaTDgAvGVeRhGHNG/fGw6Q=3D?= Content-ID: <7FFF1DC0F7EF6D47BC36A075EA511FCA@eurprd07.prod.outlook.com> MIME-Version: 1.0 X-OriginatorOrg: eviden.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM8PR07MB7602.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1450162d-34c5-4d5c-260b-08dc74aea1ae X-MS-Exchange-CrossTenant-originalarrivaltime: 15 May 2024 07:14:16.5324 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 7d1c7785-2d8a-437d-b842-1ed5d8fbe00a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: iAn2PXiGXd84WyUPQf7WlgLxnHHX4keek2kaYMdo9qZnObMb3rTMk6dhvzkvaMDpoHP3jcO4G/ClRBAG8D9/s8+JTyMdO/uZekwaacaDQRbuK8FmTvH5/Odlcqjaaoj2 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS5PR07MB9896 Received-SPF: pass client-ip=80.78.11.82; envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost1.eviden.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, 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: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org ats_enabled and pasid_enabled check whether the capabilities are present or not. If so, we read the configuration space to get the status of the feature (enabled or not). Signed-off-by: Clément Mathieu--Drif --- hw/pci/pcie.c | 18 ++++++++++++++++++ include/hw/pci/pcie.h | 3 +++ 2 files changed, 21 insertions(+) diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index d6a052b616..4efd84fed5 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -1201,3 +1201,21 @@ void pcie_pasid_init(PCIDevice *dev, uint16_t offset, uint8_t pasid_width, dev->exp.pasid_cap = offset; } + +bool pcie_pasid_enabled(const PCIDevice *dev) +{ + if (!pci_is_express(dev) || !dev->exp.pasid_cap) { + return false; + } + return (pci_get_word(dev->config + dev->exp.pasid_cap + PCI_PASID_CTRL) & + PCI_PASID_CTRL_ENABLE) != 0; +} + +bool pcie_ats_enabled(const PCIDevice *dev) +{ + if (!pci_is_express(dev) || !dev->exp.ats_cap) { + return false; + } + return (pci_get_word(dev->config + dev->exp.ats_cap + PCI_ATS_CTRL) & + PCI_ATS_CTRL_ENABLE) != 0; +} diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h index c59627d556..8c222f09da 100644 --- a/include/hw/pci/pcie.h +++ b/include/hw/pci/pcie.h @@ -151,4 +151,7 @@ void pcie_cap_slot_unplug_request_cb(HotplugHandler *hotplug_dev, void pcie_pasid_init(PCIDevice *dev, uint16_t offset, uint8_t pasid_width, bool exec_perm, bool priv_mod); + +bool pcie_pasid_enabled(const PCIDevice *dev); +bool pcie_ats_enabled(const PCIDevice *dev); #endif /* QEMU_PCIE_H */