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h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=f3/EW3sqniXruvG4u4S9qwToDsD3nZPuOvy+sp1yapw=; b=QGFy775mw4dtkFIAgXsmMGur0hVtX1weg9wbrPFlx2y7TDNzFpbeofL9/VtQUqzGyqeEBfluLE+bCH7WgvLZciU5Iu+yfzWKET14pPE80QosUIFcf7JA6DZznKeqHpnpIRJjBWNmsJs6KstKG4H2/BJRtf/7xqRSYP/Q9NkBDhs= 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 From: Wei Chen To: CC: , Wei Chen , Stefano Stabellini , Julien Grall , Bertrand Marquis , Volodymyr Babchuk Subject: [PATCH v6 00/11] xen/arm: Add Armv8-R64 MPU support to Xen - Part#1 Date: Fri, 4 Nov 2022 18:07:30 +0800 Message-ID: <20221104100741.2176307-1-wei.chen@arm.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 1 X-MS-TrafficTypeDiagnostic: DBAEUR03FT061:EE_|DU0PR08MB8710:EE_|DBAEUR03FT057:EE_|AS8PR08MB8183:EE_ X-MS-Office365-Filtering-Correlation-Id: cff1c07d-457a-4610-978e-08dabe4c80cd x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Nov 2022 10:08:21.3939 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cff1c07d-457a-4610-978e-08dabe4c80cd 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: DBAEUR03FT057.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR08MB8183 The Armv-R architecture profile was designed to support use cases that have a high sensitivity to deterministic execution. (e.g. Fuel Injection, Brake control, Drive trains, Motor control etc) Arm announced Armv8-R in 2013, it is the latest generation Arm architecture targeted at the Real-time profile. It introduces virtualization at the highest security level while retaining the Protected Memory System Architecture (PMSA) based on a Memory Protection Unit (MPU). In 2020, Arm announced Cortex-R82, which is the first Arm 64-bit Cortex-R processor based on Armv8-R64. The latest Armv8-R64 document can be found [1]. And the features of Armv8-R64 architecture: - An exception model that is compatible with the Armv8-A model - Virtualization with support for guest operating systems - PMSA virtualization using MPUs In EL2. - Adds support for the 64-bit A64 instruction set. - Supports up to 48-bit physical addressing. - Supports three Exception Levels (ELs) - Secure EL2 - The Highest Privilege - Secure EL1 - RichOS (MMU) or RTOS (MPU) - Secure EL0 - Application Workloads - Supports only a single Security state - Secure. - MPU in EL1 & EL2 is configurable, MMU in EL1 is configurable. These patch series are implementing the Armv8-R64 MPU support for Xen, which are based on the discussion of "Proposal for Porting Xen to Armv8-R64 - DraftC" [1]. We will implement the Armv8-R64 and MPU support in three stages: 1. Boot Xen itself to idle thread, do not create any guests on it. 2. Support to boot MPU and MMU domains on Armv8-R64 Xen. 3. SMP and other advanced features of Xen support on Armv8-R64. We will split these patches to several parts, this series is the part#1, the full PoC can be found in [3]. More software for Armv8-R64 can be found in [4]; [1] https://developer.arm.com/documentation/ddi0600/latest [2] https://lists.xenproject.org/archives/html/xen-devel/2022-05/msg00643.html [3] https://gitlab.com/xen-project/people/bmarquis/xen-arm-poc/-/tree/poc/r82-mpu-v2 [4] https://armv8r64-refstack.docs.arm.com/en/v4.0/ Penny Zheng (3): xen/arm64: create boot-time MPU protection regions xen/arm64: introduce helpers for MPU enable/disable xen/arm64: add setup_fixmap and remove_identity_mapping for MPU Wei Chen (8): xen/arm: remove xen_phys_start and xenheap_phys_end from config.h xen/arm: add iounmap after initrd has been loaded in domain_build xen/arm: disable EFI boot services for MPU systems xen/arm: adjust Xen TLB helpers for Armv8-R64 PMSA xen/arm: define Xen start address for FVP BaseR platform xen/arm: split MMU and MPU config files from config.h xen/arm: implement FIXMAP_ADDR for MPU systems xen/arm64: move MMU related code from head.S to head_mmu.S xen/arch/arm/Kconfig | 15 +- xen/arch/arm/arm64/Makefile | 5 + xen/arch/arm/arm64/head.S | 429 ++---------------- xen/arch/arm/arm64/head_mmu.S | 364 +++++++++++++++ xen/arch/arm/arm64/head_mpu.S | 154 +++++++ xen/arch/arm/domain_build.c | 2 + xen/arch/arm/include/asm/arm64/flushtlb.h | 25 + xen/arch/arm/include/asm/arm64/macros.h | 52 ++- xen/arch/arm/include/asm/arm64/mpu.h | 13 + xen/arch/arm/include/asm/arm64/sysregs.h | 89 ++++ xen/arch/arm/include/asm/config.h | 99 +--- xen/arch/arm/include/asm/config_mmu.h | 119 +++++ xen/arch/arm/include/asm/config_mpu.h | 29 ++ xen/arch/arm/include/asm/fixmap.h | 25 + xen/arch/arm/include/asm/flushtlb.h | 22 + .../arm/include/asm/platforms/fvp_baser.h | 18 + xen/arch/arm/platforms/Kconfig | 16 +- 17 files changed, 976 insertions(+), 500 deletions(-) create mode 100644 xen/arch/arm/arm64/head_mmu.S create mode 100644 xen/arch/arm/arm64/head_mpu.S create mode 100644 xen/arch/arm/include/asm/arm64/mpu.h create mode 100644 xen/arch/arm/include/asm/config_mmu.h create mode 100644 xen/arch/arm/include/asm/config_mpu.h create mode 100644 xen/arch/arm/include/asm/platforms/fvp_baser.h -- 2.25.1