From patchwork Wed Sep 27 14:01:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joey Gouly X-Patchwork-Id: 13400877 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 20CD0E80AAE for ; Wed, 27 Sep 2023 14:04:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=3d0Lpd2XqHhSVxWJR7k05w4bVz4d+6vu7mIGx8AJokk=; b=x7bXJb1fN8BD2u o+4gbV8fBEah22Fw0am+jpQocRLMuKanexE0KoFNzZgdM8i2Ddl89Akxptox5oK61Bw/+Feeis+ZK EmhS5pcKErl/MDs4oEoZ1hOSV9nWcxTEpBq2trW167NAp0n9H0QZ9lc9RfUoUSHFmyJEKCIDp9pyq 7u7ULoQU3pkQqLdyHgh5DhJ8gxnf1kJl8DrahKLWW+6AlZ0VM4YsMjMOLrr2dd/kxzeUy3sPI5Pjk zeM6GmZbwMade4llM7HQcQOc3ZEOQcF6CUnls+YWvGMIJgPThPZWfSnJtfQI3NiBSScPf//res8pF bgSOqifjkL1bfZypsPmg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qlV8Z-0014rP-2S; Wed, 27 Sep 2023 14:03:35 +0000 Received: from mail-am7eur03on2062b.outbound.protection.outlook.com ([2a01:111:f400:7eaf::62b] helo=EUR03-AM7-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qlV8R-0014la-1J for linux-arm-kernel@lists.infradead.org; Wed, 27 Sep 2023 14:03:29 +0000 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=IbrnELc79cTTyl8mSzRLYhNT8sC3fwyI3hxFhzA9Hnk=; b=6aQKWRsScIzuVfSjKGLTQmcWu2faaUoQTjPYQnoXbjADikL3RRfMuCtb+7+bEueP7Ju1ZQtGr5SRzkccgiOSR9+Bf2u1lx6JgSiN/uTZRIFqaXr4PunhZVt2DkzaPS4Oul+p270vI7sifIr3KEq2zWvjKegATFFw03WmEkHmmyU= Received: from AM5PR0301CA0007.eurprd03.prod.outlook.com (2603:10a6:206:14::20) by DBAPR08MB5702.eurprd08.prod.outlook.com (2603:10a6:10:1a3::14) 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 14:03:19 +0000 Received: from AM7EUR03FT035.eop-EUR03.prod.protection.outlook.com (2603:10a6:206:14:cafe::78) by AM5PR0301CA0007.outlook.office365.com (2603:10a6:206:14::20) 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 14:03:19 +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 AM7EUR03FT035.mail.protection.outlook.com (100.127.141.24) 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 14:03:19 +0000 Received: ("Tessian outbound 0ae75d4034ba:v211"); Wed, 27 Sep 2023 14:03:19 +0000 X-CheckRecipientChecked: true X-CR-MTA-CID: 2a9f62c7b57c88f0 X-CR-MTA-TID: 64aa7808 Received: from 6692e6f04f1b.1 by 64aa7808-outbound-1.mta.getcheckrecipient.com id DB31AE2E-8849-486B-AC68-2C7CE4026BC5.1; Wed, 27 Sep 2023 14:01:50 +0000 Received: from EUR05-DB8-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 6692e6f04f1b.1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Wed, 27 Sep 2023 14:01:50 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bjOUkYPs8AOGRxlPXGIkojfy6ug5wwNgWZ7T/YqxFk495Y6ggR9K7kHGCTZmGbIYW1HhGag/zVqoZq0g3CjSUq1kdjgxxuUXRtHwl8tK5F13WlwDSOowikbZxvj7qd9Wzf3XOZTTRIXxy8KfJ0MAat0yl7I6TOsDikW8CzoeW1GAmYLKd+wz200VToV3B2X1/eDZOIZl4LIzugX6Kc/1XfQmBP+faz3odddFz+kmLYuJolD3f/FFJVE8f4fu0PaHrdkRhPpMiY6+HYqR4K/kWMSWxzwZklBN4zDroYNPI2z6jXcU1tOz4WUeMgsFg8/AWpWKmIeyIEIe5deAWjEJgA== 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=IbrnELc79cTTyl8mSzRLYhNT8sC3fwyI3hxFhzA9Hnk=; b=E9UO6GBxo/Q2pCRIolUhyA5uFDcO/sp9tb6gOD4AT9kLw8ULTWIH/CL8zKOLa4eSA2jpZ8yuHy/LrvBjuer6tsCkedtjF+hsHvkKKk1JPzulzhJ/N8aHeXR4zF6ay/mv9FnkMaQegRB9VuK2T2XRM7qUdyZwP/sP5gvHDbamJRdMA/OtjupZ1bSo3lvHU3CJrC7vFObzadwn7GqKZMAGMVZaaLQYz/Lhas2Xv/qUchyPFNX0g2xZTCjBlkfFgRz+wZ54LA+gCqyyzRD9Ic4oD/DZC2G1u9WqOQy/r5XMwSqh563oWY4/9fOOCGHctAs8iU0gnzZG4Sn5ux7A5o7XOQ== 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=IbrnELc79cTTyl8mSzRLYhNT8sC3fwyI3hxFhzA9Hnk=; b=6aQKWRsScIzuVfSjKGLTQmcWu2faaUoQTjPYQnoXbjADikL3RRfMuCtb+7+bEueP7Ju1ZQtGr5SRzkccgiOSR9+Bf2u1lx6JgSiN/uTZRIFqaXr4PunhZVt2DkzaPS4Oul+p270vI7sifIr3KEq2zWvjKegATFFw03WmEkHmmyU= Received: from AM0PR07CA0006.eurprd07.prod.outlook.com (2603:10a6:208:ac::19) by DB4PR08MB8053.eurprd08.prod.outlook.com (2603:10a6:10:38a::17) 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 14:01:45 +0000 Received: from AM7EUR03FT048.eop-EUR03.prod.protection.outlook.com (2603:10a6:208:ac:cafe::6) by AM0PR07CA0006.outlook.office365.com (2603:10a6:208:ac::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6838.19 via Frontend Transport; Wed, 27 Sep 2023 14:01:45 +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 AM7EUR03FT048.mail.protection.outlook.com (100.127.140.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6838.22 via Frontend Transport; Wed, 27 Sep 2023 14:01:45 +0000 Received: from AZ-NEU-EX03.Arm.com (10.251.24.31) by AZ-NEU-EX04.Arm.com (10.251.24.32) 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 14:01:36 +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 14:01:35 +0000 From: Joey Gouly To: CC: , , , , , , , , , , , , , Subject: [PATCH v1 04/20] arm64: disable trapping of POR_EL0 to EL2 Date: Wed, 27 Sep 2023 15:01:07 +0100 Message-ID: <20230927140123.5283-5-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: AM7EUR03FT048:EE_|DB4PR08MB8053:EE_|AM7EUR03FT035:EE_|DBAPR08MB5702:EE_ X-MS-Office365-Filtering-Correlation-Id: 18d1029a-a85e-4477-44ae-08dbbf62810c 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)(396003)(346002)(39860400002)(376002)(136003)(230922051799003)(1800799009)(186009)(451199024)(82310400011)(36840700001)(46966006)(70206006)(40480700001)(54906003)(6916009)(70586007)(2906002)(316002)(7416002)(4326008)(41300700001)(19627235002)(44832011)(8676002)(8936002)(478600001)(1076003)(6666004)(36860700001)(5660300002)(47076005)(7696005)(83380400001)(426003)(356005)(86362001)(336012)(36756003)(2616005)(26005)(82740400003)(81166007)(36900700001);DIR:OUT;SFP:1101; X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB4PR08MB8053 X-MS-Exchange-Transport-CrossTenantHeadersStripped: AM7EUR03FT035.eop-EUR03.prod.protection.outlook.com X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id-Prvs: c359938e-8340-4828-5fa0-08dbbf6248f0 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)(39860400002)(376002)(136003)(346002)(396003)(230922051799003)(1800799009)(451199024)(186009)(82310400011)(40470700004)(46966006)(36840700001)(7696005)(2616005)(40460700003)(82740400003)(36860700001)(40480700001)(81166007)(86362001)(36756003)(26005)(336012)(19627235002)(2906002)(1076003)(426003)(8936002)(478600001)(70206006)(47076005)(6666004)(83380400001)(5660300002)(41300700001)(44832011)(54906003)(8676002)(70586007)(4326008)(107886003)(316002)(6916009);DIR:OUT;SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Sep 2023 14:03:19.5197 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 18d1029a-a85e-4477-44ae-08dbbf62810c 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: AM7EUR03FT035.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBAPR08MB5702 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230927_070327_450361_279DB321 X-CRM114-Status: GOOD ( 10.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Allow EL0 or EL1 to access POR_EL0 without being trapped to EL2. Signed-off-by: Joey Gouly Cc: Catalin Marinas Cc: Will Deacon --- arch/arm64/include/asm/el2_setup.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h index b7afaa026842..df5614be4b70 100644 --- a/arch/arm64/include/asm/el2_setup.h +++ b/arch/arm64/include/asm/el2_setup.h @@ -184,12 +184,20 @@ .Lset_pie_fgt_\@: mrs_s x1, SYS_ID_AA64MMFR3_EL1 ubfx x1, x1, #ID_AA64MMFR3_EL1_S1PIE_SHIFT, #4 - cbz x1, .Lset_fgt_\@ + cbz x1, .Lset_poe_fgt_\@ /* Disable trapping of PIR_EL1 / PIRE0_EL1 */ orr x0, x0, #HFGxTR_EL2_nPIR_EL1 orr x0, x0, #HFGxTR_EL2_nPIRE0_EL1 +.Lset_poe_fgt_\@: + mrs_s x1, SYS_ID_AA64MMFR3_EL1 + ubfx x1, x1, #ID_AA64MMFR3_EL1_S1POE_SHIFT, #4 + cbz x1, .Lset_fgt_\@ + + /* Disable trapping of POR_EL0 */ + orr x0, x0, #HFGxTR_EL2_nPOR_EL0 + .Lset_fgt_\@: msr_s SYS_HFGRTR_EL2, x0 msr_s SYS_HFGWTR_EL2, x0