From nobody Mon Feb 9 00:37:34 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1 dmarc=pass fromdomain=amd.com); dmarc=pass(p=quarantine dis=none) header.from=amd.com ARC-Seal: i=2; a=rsa-sha256; t=1741890571; cv=pass; d=zohomail.com; s=zohoarc; b=NuFfSW9G09XeiAoYGfIaUCt6NqqXIwzpO7DiuGhFghTVrmrspYtIjaAcaMCKJ1n7L9CIiufxD59TPLWZEniz09/z6PB0wqvemz2ye0UhXlujHkVVvFxwScFyGjjM80gqHQf/T9eXw5hB+6pIRm0gdYQ+vd2h4rFyljDyvKai528= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1741890571; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=elh3r0PaEr5sJhWQvQbG1ywMmlz4cKftNHjTNQEPGrY=; b=EoA8SXPF25UMWGgjuA3J/U7SD27aJi+jZPHhFXz61DTDDka8PW29Kn242QOCryETpZyyE6cZEYUFBGiP48XFf0eRdOYgdhafygXKMzOPcx0AR3NiSrc8FhYDL7DdtyD+5nedhVkfqS5WJpC3RiR7alVCgVNhACSE4mrfqEICmSA= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; arc=pass (i=1 dmarc=pass fromdomain=amd.com); dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1741890571811679.3423439730811; Thu, 13 Mar 2025 11:29:31 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.913307.1319392 (Exim 4.92) (envelope-from ) id 1tsnIz-0000jO-LB; Thu, 13 Mar 2025 18:29:17 +0000 Received: by outflank-mailman (output) from mailman id 913307.1319392; Thu, 13 Mar 2025 18:29:17 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tsnIz-0000jH-IN; Thu, 13 Mar 2025 18:29:17 +0000 Received: by outflank-mailman (input) for mailman id 913307; Thu, 13 Mar 2025 18:29:16 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1tsnIy-0008Kg-F7 for xen-devel@lists.xenproject.org; Thu, 13 Mar 2025 18:29:16 +0000 Received: from NAM04-MW2-obe.outbound.protection.outlook.com (mail-mw2nam04on2060f.outbound.protection.outlook.com [2a01:111:f403:240a::60f]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 0fda7c50-0039-11f0-9898-31a8f345e629; Thu, 13 Mar 2025 19:29:14 +0100 (CET) Received: from DS7PR03CA0163.namprd03.prod.outlook.com (2603:10b6:5:3b2::18) by SJ1PR12MB6194.namprd12.prod.outlook.com (2603:10b6:a03:458::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8511.27; Thu, 13 Mar 2025 18:29:09 +0000 Received: from CY4PEPF0000E9DA.namprd05.prod.outlook.com (2603:10b6:5:3b2:cafe::d6) by DS7PR03CA0163.outlook.office365.com (2603:10b6:5:3b2::18) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8534.24 via Frontend Transport; Thu, 13 Mar 2025 18:29:09 +0000 Received: from SATLEXMB04.amd.com (165.204.84.17) by CY4PEPF0000E9DA.mail.protection.outlook.com (10.167.241.73) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8534.20 via Frontend Transport; Thu, 13 Mar 2025 18:29:08 +0000 Received: from SATLEXMB05.amd.com (10.181.40.146) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 13 Mar 2025 13:29:07 -0500 Received: from SATLEXMB03.amd.com (10.181.40.144) by SATLEXMB05.amd.com (10.181.40.146) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 13 Mar 2025 13:29:07 -0500 Received: from xcbayankuma40.xilinx.com (10.180.168.240) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server id 15.1.2507.39 via Frontend Transport; Thu, 13 Mar 2025 13:29:06 -0500 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 0fda7c50-0039-11f0-9898-31a8f345e629 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=oCFvWpulTSSjbV7mbtzh12sEK7VnF9TqIR5yrxZXM3Qnt5OUBsLbuN3mTdnlEFntuLW4nh0f7kU3XzJpfUwImfJlLPa5e28Qfpuyt/D9advW7+0wwkNjdgKiivxUq0g+mp7FJX516tQpzXKQux1FXod6W8iMmeNU1dOgKxZxAd8h+kx1qDuLNjDf+Qifu6Hphk6C/CYaeshq5YoALyxWNVhzU5Ewt4X/nO3GRDd0Yeis6IQGJ8vgbuwjfVuoyeftfm/rwuQYwG1vey9+3Oqt0ZqlZ7QRLkmWtInE0iKNeV9soIZNpVnTkYc/gYzGkvdWlXutTBFG18Qsbf9pPWO7LA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=elh3r0PaEr5sJhWQvQbG1ywMmlz4cKftNHjTNQEPGrY=; b=U5/nkBseGoY5Yc7SirFea0gcdWsJ446lklfGShZpoIBZZxSCkZ1tBOSH13drSKhC/KKICn/QqRuLYDkW4FdyLNqszbJbMLdJLOoBjy69JlQ/xzoI+Oio8SOyWvDHD3lAzejbm6444T7Zcn181A4qpxfwl33GjjyzcVPRnXu/Zmv0Iucsw8EWyTVD9pwpEskLA4K8kXajcvgiFthMt9KHv/sffs1jFnt3UkJxFOAL9PqpTfSEhs4IpYkijvacO315qAFaxJClUibtoePY9MRglezxU8iPURKuAO49PgBzk7Fmf8eBsz15qWFgOgCcYLp/vhA4EZLD3Ythsc0xhNjueA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=lists.xenproject.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=elh3r0PaEr5sJhWQvQbG1ywMmlz4cKftNHjTNQEPGrY=; b=k1XDb8EDepB+Ia7/23U2piGsNJUHJBS1+cI24zlXLUpPEiFPf3LEZNDBgt1Tmht8vIG6sXvsN2vyGOQwh9hMl9pDg6znZkTAh6bHzwYNSFo9E+zvSJsKdjnCfscS76/rKEm3ZU56yvMt+KUfvit0f+DJBoNzxMJudPdtjeG+NaY= X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C From: Ayan Kumar Halder To: CC: Ayan Kumar Halder , Stefano Stabellini , Julien Grall , Bertrand Marquis , Michal Orzel , "Volodymyr Babchuk" Subject: [PATCH v2 1/4] xen/arm32: Initialize MM specific registers in enable_mmu Date: Thu, 13 Mar 2025 18:28:47 +0000 Message-ID: <20250313182850.1527052-2-ayan.kumar.halder@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250313182850.1527052-1-ayan.kumar.halder@amd.com> References: <20250313182850.1527052-1-ayan.kumar.halder@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: None (SATLEXMB05.amd.com: ayan.kumar.halder@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9DA:EE_|SJ1PR12MB6194:EE_ X-MS-Office365-Filtering-Correlation-Id: a435c073-413a-489d-e89e-08dd625cf1b7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|82310400026|36860700013|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?we/x794P0YQhA8B+jYNq25pBXZH/D7W9ng//JvL6nf8TKPtM1nbMnT1n2bOF?= =?us-ascii?Q?X9RQqn3dAWE2QhFB8guSYDBELICyoGaOLSaIksL4Nt9zIiBxQby5dEfHw1JE?= =?us-ascii?Q?Rep8YphxYWjQB24W96gKWUdxUsKC62TJmAWrrqMUq1zcF7M4R3R1pJLX5e/K?= =?us-ascii?Q?O39Ro15awqEDhP7FLcdHof9dwr15MaoBXXZlWIABnRTpKDPX3+dRb/+HwDBc?= =?us-ascii?Q?Vw5JB2RIAyIMOZL0tqkABEZd6M0ouDB8xyja0ZzxT+QstCjTQRgFdJkig9tE?= =?us-ascii?Q?HzChEmZDsEwJbAY3NTZ2L89yNZ0pzOGlvEceyo9a9mJUTuR6Rr5VCOY+F8/M?= =?us-ascii?Q?JzNcZ6Rv+e8OYQd6agOMjKBqbRB+sPv8r3/pkLbohx+zDodIASkHC3wn7a8v?= =?us-ascii?Q?7D8tPO93Wgbxlo1/cbJLKXPo7nplAovixzLDA7GoBdDiar2oN8QhjyQwfI6R?= =?us-ascii?Q?BHHPgx5qAACNdol5yUm+X12kHWSxTTXP2kIF89SuTCH9QNhkEjOWV7kMpno2?= =?us-ascii?Q?0BeFoP0VGYiGTYVv5bK/kYjXz2Wf2byNyOE3BDJbSZFEoQbrWtE/KkE30Ijd?= =?us-ascii?Q?SDQvmDQJn7j4xUjn1H0lBeiAs/tY4M5QyEGJRtMnadL/XpMqcxog1kT5NtJe?= =?us-ascii?Q?7clYa+OskbsAj0lUQQ28ja14r1bUjJ1zh+vJOO+09loZaZlbyJdjvKVJ5ooJ?= =?us-ascii?Q?0QMJ12IP0zfPl+w++UfxRSqncy0GieqirHyg9TT0xZ0KOwC5/3yP/HpnANkW?= =?us-ascii?Q?VATzczcTHWQg7cAgnDCQQhyo9pdkXbvlnUuvEvZgyBBb/QDAEw95kXFo1C7G?= =?us-ascii?Q?P+PCBd3mG2Iql3LL5CQf0+4fmFpjXp6+Q0d4geaBGumy7ACekYvLIJwcsPfz?= =?us-ascii?Q?Dz9td/WWV2UPq2erSGD+mJlwW5+tjyyYZIziMsKaGYkUUSSijMkeY+PpupXQ?= =?us-ascii?Q?Kz++Z2QmuZxRfykms0VyZ0yN31eG680y3jojVVCj+Jtv+en+mcvSfoSLwp84?= =?us-ascii?Q?KMCwiiUAvyug7KMQDc/HxMx0ugugfrUsPU5JP8XjqeTkm/LBoAZZRFKOfYjq?= =?us-ascii?Q?MXv5n0/Gto6y90qVfW4a5Zc5uwOUwWeTYk5jJY2ySsL8/0SxbOKZfaIJbvY1?= =?us-ascii?Q?z6aj/Df+IXVJznMlNRt+Ax48SpjAS3gr1yXzDEjiGNdHkerrzPkFazFQGGdv?= =?us-ascii?Q?RN0r4IDspkFVCW/ie54k2BmbwBhWzBqMym2e5+EK+bKUynacM0ornceiBg/N?= =?us-ascii?Q?RiAV7HDfLMnT/yTqbCStLTEXNVf01fJKsLw9V+0Izc6EEjwphjc9i8tVh/r4?= =?us-ascii?Q?OY/SxA1ex7h/RCQI+afC7s6B01X+r0U0YBJmdePtQuihpEl9Y6U7oylH/nHU?= =?us-ascii?Q?J+yX6iZAD9LAx4KJkUNblSVZpI4fWVHtfST8kYp/YLsfY4RaWa8hVBp0dE7X?= =?us-ascii?Q?d+wnf2A9NtsjdgEE2DcnGdqxIKA+luck3yim+Xf6j7Qfv0vGF/SSgQ=3D=3D?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(376014)(82310400026)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Mar 2025 18:29:08.6947 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a435c073-413a-489d-e89e-08dd625cf1b7 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9DA.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR12MB6194 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1741890572445019000 Content-Type: text/plain; charset="utf-8" All the memory management specific registers are initialized in enable_mmu. Signed-off-by: Ayan Kumar Halder Reviewed-by: Michal Orzel --- Changes from - v1 - HTCR and HMAIR{0,1} are not set together with the other memory managem= ent registers in enable_mmu() Similar changes are to be done in arm64 as well. I prefer to do that in a separate patch so that all the arm32 changes are kept together in this seri= es. xen/arch/arm/arm32/head.S | 14 -------------- xen/arch/arm/arm32/mmu/head.S | 15 +++++++++++++++ 2 files changed, 15 insertions(+), 14 deletions(-) diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S index 4ff5c220bc..50da179f81 100644 --- a/xen/arch/arm/arm32/head.S +++ b/xen/arch/arm/arm32/head.S @@ -218,20 +218,6 @@ cpu_init: add pc, r1, r10 /* Call paddr(init func) */ =20 cpu_init_done: - /* Set up memory attribute type tables */ - mov_w r0, MAIR0VAL - mov_w r1, MAIR1VAL - mcr CP32(r0, HMAIR0) - mcr CP32(r1, HMAIR1) - - /* - * Set up the HTCR: - * PT walks use Inner-Shareable accesses, - * PT walks are write-back, write-allocate in both cache levels, - * Full 32-bit address space goes through this table. - */ - mov_w r0, (TCR_RES1|TCR_SH0_IS|TCR_ORGN0_WBWA|TCR_IRGN0_WBWA|TCR_T= 0SZ(0)) - mcr CP32(r0, HTCR) =20 mov_w r0, HSCTLR_SET mcr CP32(r0, HSCTLR) diff --git a/xen/arch/arm/arm32/mmu/head.S b/xen/arch/arm/arm32/mmu/head.S index 1e2bbf0c82..8fa74bd556 100644 --- a/xen/arch/arm/arm32/mmu/head.S +++ b/xen/arch/arm/arm32/mmu/head.S @@ -279,6 +279,21 @@ ENDPROC(create_page_tables) enable_mmu: PRINT("- Turning on paging -\r\n") =20 + /* Set up memory attribute type tables */ + mov_w r0, MAIR0VAL + mov_w r1, MAIR1VAL + mcr CP32(r0, HMAIR0) + mcr CP32(r1, HMAIR1) + + /* + * Set up the HTCR: + * PT walks use Inner-Shareable accesses, + * PT walks are write-back, write-allocate in both cache levels, + * Full 32-bit address space goes through this table. + */ + mov_w r0, (TCR_RES1|TCR_SH0_IS|TCR_ORGN0_WBWA|TCR_IRGN0_WBWA|TCR_T= 0SZ(0)) + mcr CP32(r0, HTCR) + /* * The state of the TLBs is unknown before turning on the MMU. * Flush them to avoid stale one. --=20 2.25.1