From patchwork Wed Sep 27 14:01:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joey Gouly X-Patchwork-Id: 726853 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76881E80AAD for ; Wed, 27 Sep 2023 14:02:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232041AbjI0OCp (ORCPT ); Wed, 27 Sep 2023 10:02:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38646 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231758AbjI0OCo (ORCPT ); Wed, 27 Sep 2023 10:02:44 -0400 Received: from EUR04-DB3-obe.outbound.protection.outlook.com (mail-db3eur04on2087.outbound.protection.outlook.com [40.107.6.87]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F1936121; Wed, 27 Sep 2023 07:02:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=cEphZ7FSAyhFA2gyPB5fSFck49IXGee0EHT1BdmiAgY=; b=5Ab4Y5tzLAGhgDjLLGh54MhvwGmLAs1NyAVkA4UIK2grMeKrZg1hlmV1TVwfHLz7stzrZtPXP/KVM9hjDUkKnCjoD9BoSXP8/D+EcWMiyE3vDM3S39FsaSpgRmAyWHzccOBRaw7rvQBaKEK8I0REHfDX3Djm9X+ASieBGS/OUtc= Received: from AS9P251CA0007.EURP251.PROD.OUTLOOK.COM (2603:10a6:20b:50f::9) by PAVPR08MB9061.eurprd08.prod.outlook.com (2603:10a6:102:325::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6813.28; Wed, 27 Sep 2023 14:02:39 +0000 Received: from AM7EUR03FT045.eop-EUR03.prod.protection.outlook.com (2603:10a6:20b:50f:cafe::78) by AS9P251CA0007.outlook.office365.com (2603:10a6:20b:50f::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6838.21 via Frontend Transport; Wed, 27 Sep 2023 14:02:39 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;dmarc=pass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 63.35.35.123 as permitted sender) receiver=protection.outlook.com; client-ip=63.35.35.123; helo=64aa7808-outbound-1.mta.getcheckrecipient.com; pr=C Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by AM7EUR03FT045.mail.protection.outlook.com (100.127.140.150) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6838.22 via Frontend Transport; Wed, 27 Sep 2023 14:02:39 +0000 Received: ("Tessian outbound fb5c0777b309:v211"); Wed, 27 Sep 2023 14:02:39 +0000 X-CheckRecipientChecked: true X-CR-MTA-CID: fa27c0bf9af9bd5d X-CR-MTA-TID: 64aa7808 Received: from 2ea7227955ac.1 by 64aa7808-outbound-1.mta.getcheckrecipient.com id C42703F0-08CF-4811-87E8-7D027541B34C.1; Wed, 27 Sep 2023 14:01:49 +0000 Received: from EUR04-HE1-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 2ea7227955ac.1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Wed, 27 Sep 2023 14:01:49 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=VhY2LWKO9C0VvSLR6ovgW5y7O832Bb3a8WKiXY9XO+tZtQD7bWTiGpkZLfQMuONPwqVl3t1Uaaohnc+yrURC5FspKo4zx9arUz8ltzgYaIfXD+AJtR6zpCUiZA6a330Oj4nosz5s+MSpEo1webgnU2nO7EvLrwoBu8sF087ncNpAoX6V/tKBSuziL4MkeGKnMoZEbz3flI8ERmeVfWubwptH/8Qgdzi3MH4zlLKRw098iMx74S7jUKKq0OnNHPyKilyiua8Q9gmry3ZEsP3ZitkKoz0OaM2kiAWfKrOFyg7dmN58fr43lbMei6jaBsSjCrh0b/marAfbsgKkyArWdQ== 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=cEphZ7FSAyhFA2gyPB5fSFck49IXGee0EHT1BdmiAgY=; b=ehHhM1heIzlzjpIs/Uha3TjD1IEgUssuYpWuHfsOa5b5u5nJAuIlKCz8LeJr1nlXYx0J12dl2oZTYGDkFzRCHRbz4ugfzESDkKZYxwssdeLV9DdsQTycOMI1JwXlYo9Qvc9ZTCj+bZgi11cnAJbmbER022U1eW1VGZdYlCBMnPmY804rI1ny+DlxppyB8iUlPO967P4kQA7juhu2E891Lo5oAV48B0O2xsyhfy+4wk0jhtyjHgM/4K3QStLuhbQd6pygBObhvBaVJi1QEwOFJeN4Rc40L0HCWLzyBCyn4t8kKCRnNUllg9RpjOjkNwG9d9S+8HLV476l8OwvHQSNGA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 40.67.248.234) smtp.rcpttodomain=lists.infradead.org smtp.mailfrom=arm.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=arm.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=cEphZ7FSAyhFA2gyPB5fSFck49IXGee0EHT1BdmiAgY=; b=5Ab4Y5tzLAGhgDjLLGh54MhvwGmLAs1NyAVkA4UIK2grMeKrZg1hlmV1TVwfHLz7stzrZtPXP/KVM9hjDUkKnCjoD9BoSXP8/D+EcWMiyE3vDM3S39FsaSpgRmAyWHzccOBRaw7rvQBaKEK8I0REHfDX3Djm9X+ASieBGS/OUtc= Received: from DB9PR05CA0013.eurprd05.prod.outlook.com (2603:10a6:10:1da::18) by AS2PR08MB8718.eurprd08.prod.outlook.com (2603:10a6:20b:55e::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6838.21; Wed, 27 Sep 2023 14:01:47 +0000 Received: from DBAEUR03FT051.eop-EUR03.prod.protection.outlook.com (2603:10a6:10:1da:cafe::e7) by DB9PR05CA0013.outlook.office365.com (2603:10a6:10:1da::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6838.21 via Frontend Transport; Wed, 27 Sep 2023 14:01:47 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 40.67.248.234) smtp.mailfrom=arm.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 40.67.248.234 as permitted sender) receiver=protection.outlook.com; client-ip=40.67.248.234; helo=nebula.arm.com; pr=C Received: from nebula.arm.com (40.67.248.234) by DBAEUR03FT051.mail.protection.outlook.com (100.127.142.148) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6838.21 via Frontend Transport; Wed, 27 Sep 2023 14:01:47 +0000 Received: from AZ-NEU-EX02.Emea.Arm.com (10.251.26.5) by AZ-NEU-EX03.Arm.com (10.251.24.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Wed, 27 Sep 2023 14:01:39 +0000 Received: from AZ-NEU-EX03.Arm.com (10.251.24.31) by AZ-NEU-EX02.Emea.Arm.com (10.251.26.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Wed, 27 Sep 2023 14:01:38 +0000 Received: from e124191.cambridge.arm.com (10.1.197.45) by mail.arm.com (10.251.24.31) with Microsoft SMTP Server id 15.1.2507.27 via Frontend Transport; Wed, 27 Sep 2023 14:01:38 +0000 From: Joey Gouly To: CC: , , , , , , , , , , , , , Subject: [PATCH v1 10/20] arm64: mask out POIndex when modifying a PTE Date: Wed, 27 Sep 2023 15:01:13 +0100 Message-ID: <20230927140123.5283-11-joey.gouly@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230927140123.5283-1-joey.gouly@arm.com> References: <20230927140123.5283-1-joey.gouly@arm.com> MIME-Version: 1.0 X-EOPAttributedMessage: 1 X-MS-TrafficTypeDiagnostic: DBAEUR03FT051:EE_|AS2PR08MB8718:EE_|AM7EUR03FT045:EE_|PAVPR08MB9061:EE_ X-MS-Office365-Filtering-Correlation-Id: a6a19a76-a5ab-49a6-0b60-08dbbf626940 x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:40.67.248.234; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:nebula.arm.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(4636009)(136003)(376002)(346002)(396003)(39860400002)(230922051799003)(82310400011)(186009)(1800799009)(451199024)(46966006)(40470700004)(36840700001)(40460700003)(44832011)(7696005)(6666004)(70206006)(81166007)(356005)(2616005)(70586007)(6916009)(54906003)(316002)(478600001)(86362001)(36860700001)(47076005)(426003)(336012)(82740400003)(1076003)(83380400001)(26005)(5660300002)(40480700001)(41300700001)(36756003)(4326008)(2906002)(8676002)(8936002)(7416002)(36900700001); DIR:OUT; SFP:1101; X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS2PR08MB8718 X-MS-Exchange-Transport-CrossTenantHeadersStripped: AM7EUR03FT045.eop-EUR03.prod.protection.outlook.com X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id-Prvs: b42636de-6186-4c5e-744e-08dbbf6249ec X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:63.35.35.123; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFS:(13230031)(4636009)(136003)(39860400002)(396003)(346002)(376002)(230922051799003)(451199024)(82310400011)(1800799009)(186009)(46966006)(40470700004)(36840700001)(83380400001)(7696005)(6666004)(2616005)(40460700003)(86362001)(36756003)(40480700001)(81166007)(36860700001)(82740400003)(336012)(426003)(2906002)(8676002)(26005)(478600001)(47076005)(1076003)(8936002)(6862004)(4326008)(5660300002)(41300700001)(450100002)(44832011)(316002)(70206006)(54906003)(70586007); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Sep 2023 14:02:39.5781 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a6a19a76-a5ab-49a6-0b60-08dbbf626940 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM7EUR03FT045.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAVPR08MB9061 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org When a PTE is modified, the POIndex must be masked off so that it can be modified. Signed-off-by: Joey Gouly Cc: Catalin Marinas Cc: Will Deacon --- arch/arm64/include/asm/pgtable.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 7f7d9b1df4e5..98ccfda05716 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -818,9 +818,10 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) * Normal and Normal-Tagged are two different memory types and indices * in MAIR_EL1. The mask below has to include PTE_ATTRINDX_MASK. */ - const pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY | + pteval_t mask = PTE_USER | PTE_PXN | PTE_UXN | PTE_RDONLY | PTE_PROT_NONE | PTE_VALID | PTE_WRITE | PTE_GP | - PTE_ATTRINDX_MASK; + PTE_ATTRINDX_MASK | PTE_PO_IDX_MASK; + /* preserve the hardware dirty information */ if (pte_hw_dirty(pte)) pte = set_pte_bit(pte, __pgprot(PTE_DIRTY));