From patchwork Thu Nov 16 15:27:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi-De Wu X-Patchwork-Id: 1864806 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=mediatek.com header.i=@mediatek.com header.a=rsa-sha256 header.s=dk header.b=Ijo1FENc; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:40f1:3f00::1; helo=sy.mirrors.kernel.org; envelope-from=devicetree+bounces-16311-incoming-dt=patchwork.ozlabs.org@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org [IPv6:2604:1380:40f1:3f00::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SWP8x2R3dz1yS1 for ; Fri, 17 Nov 2023 02:29:37 +1100 (AEDT) Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id E0900B20C0B for ; Thu, 16 Nov 2023 15:29:36 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3DFD9364B2; Thu, 16 Nov 2023 15:29:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="Ijo1FENc" X-Original-To: devicetree@vger.kernel.org Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8285D194; Thu, 16 Nov 2023 07:29:16 -0800 (PST) X-UUID: e34d35cc849411eea33bb35ae8d461a2-20231116 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=pVyIsl3ExEL9pxEFWdNC20Rk9TLmQLnGcqAzTrgVyl0=; b=Ijo1FENcwqV7Ro4dMoJM/ENEjMV2J5esc7CeeYDSIx5BU6u7ww7utnSlRwyJnHd7rdPPmOBjT168LZEkfV2gM8VazOgPCaWZnSYwZG81RAd9/WGhA3vktQX7aW2IBqfvZv9KYh7sQkF8AMr3PJ92h5YV2VY0v2fLoYAGCllS9YA=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.33,REQID:7cbd6218-3532-42bd-ac3b-41c308a68dd8,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:364b77b,CLOUDID:cc392460-c89d-4129-91cb-8ebfae4653fc,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO, DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_ULS,TF_CID_SPAM_SNR X-UUID: e34d35cc849411eea33bb35ae8d461a2-20231116 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1515919430; Thu, 16 Nov 2023 23:29:09 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n1.mediatek.inc (172.21.101.185) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 16 Nov 2023 23:29:08 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 16 Nov 2023 23:29:08 +0800 From: Yi-De Wu To: Yingshiuan Pan , Ze-Yu Wang , Yi-De Wu , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Catalin Marinas , Will Deacon , Matthias Brugger , AngeloGioacchino Del Regno CC: Arnd Bergmann , , , , , , David Bradil , Trilok Soni , Jade Shih , Ivan Tseng , My Chuang , Shawn Hsiao , PeiLun Suei , Liju Chen , Willix Yeh , Kevenny Hsieh Subject: [PATCH v7 00/16] GenieZone hypervisor drivers Date: Thu, 16 Nov 2023 23:27:40 +0800 Message-ID: <20231116152756.4250-1-yi-de.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N This series is based on linux-next, tag: next-20231116. Our previous v6 patches seem to have fallen through the cracks, so we are resending them for v7 with minor improvements and a new feature. We hope this will bring us further review of our patches. GenieZone hypervisor(gzvm) is a type-1 hypervisor that supports various virtual machine types and provides security features such as TEE-like scenarios and secure boot. It can create guest VMs for security use cases and has virtualization capabilities for both platform and interrupt. Although the hypervisor can be booted independently, it requires the assistance of GenieZone hypervisor kernel driver(gzvm-ko) to leverage the ability of Linux kernel for vCPU scheduling, memory management, inter-VM communication and virtio backend support. Changes in v7: - Rebase these patches to the Linux 6.7-rc1 release. - Refactor patches 1 to 15 to improve coding style while ensuring they do not violate the majority of the changes made in v6 - Provide individual VM memory statistics within debugfs in patch 16. - Add tracing support for hyper call and vcpu exit_reason. Changes in v6: https://lore.kernel.org/all/20230919111210.19615-1-yi-de.wu@mediatek.com/ - Rebase based on kernel 6.6-rc1 - Keep dt solution and leave the reasons in the commit message - Remove arch/arm64/include/uapi/asm/gzvm_arch.h due to simplicity - Remove resampler in drivers/virt/geniezone/gzvm_irqfd.c due to defeature for now - Remove PPI in arch/arm64/geniezone/vgic.c - Refactor vm related components into 3 smaller patches, namely adding vm support, setting user memory region and checking vm capability - Refactor vcpu and vm component to remove unnecessary ARM prefix - Add demand paging to fix crash on destroying memory page, acclerate on booting and support ballooning deflate - Add memory pin/unpin memory mechanism to support protected VM - Add block-based demand paging for performance concern - Response to reviewers and fix coding style accordingly Changes in v5: https://lore.kernel.org/all/20230727080005.14474-1-yi-de.wu@mediatek.com/ - Add dt solution back for device initialization - Add GZVM_EXIT_GZ reason for gzvm_vcpu_run() - Add patch for guest page fault handler - Add patch for supporitng pin/unpin memory - Remove unused enum members, namely GZVM_FUNC_GET_REGS and GZVM_FUNC_SET_REGS - Use dev_debug() for debugging when platform device is available, and use pr_debug() otherwise - Response to reviewers and fix bugs accordingly Changes in v4: https://lore.kernel.org/all/20230609085214.31071-1-yi-de.wu@mediatek.com/ - Add macro to set VM as protected without triggering pvmfw in AVF. - Add support to pass dtb config to hypervisor. - Add support for virtual timer. - Add UAPI to pass memory region metadata to hypervisor. - Define our own macros for ARM's interrupt number - Elaborate more on GenieZone hyperivsor in documentation - Fix coding style. - Implement our own module for coverting ipa to pa - Modify the way of initializing device from dt to a more discoverable way - Move refactoring changes into indepedent patches. Changes in v3: https://lore.kernel.org/all/20230512080405.12043-1-yi-de.wu@mediatek.com/ - Refactor: separate arch/arm64/geniezone/gzvm_arch.c into vm.c/vcpu.c/vgic.c - Remove redundant functions - Fix reviewer's comments Changes in v2: https://lore.kernel.org/all/20230428103622.18291-1-yi-de.wu@mediatek.com/ - Refactor: move to drivers/virt/geniezone - Refactor: decouple arch-dependent and arch-independent - Check pending signal before entering guest context - Fix reviewer's comments Initial Commit in v1: https://lore.kernel.org/all/20230413090735.4182-1-yi-de.wu@mediatek.com/ Yi-De Wu (16): docs: geniezone: Introduce GenieZone hypervisor dt-bindings: hypervisor: Add MediaTek GenieZone hypervisor virt: geniezone: Add GenieZone hypervisor driver virt: geniezone: Add vm support virt: geniezone: Add set_user_memory_region for vm virt: geniezone: Add vm capability check virt: geniezone: Add vcpu support virt: geniezone: Add irqchip support for virtual interrupt injection virt: geniezone: Add irqfd support virt: geniezone: Add ioeventfd support virt: geniezone: Add memory region support virt: geniezone: Add dtb config support virt: geniezone: Add demand paging support virt: geniezone: Add block-based demand paging support virt: geniezone: Add memory pin/unpin support virt: geniezone: Add memory relinquish support .../hypervisor/mediatek,geniezone-hyp.yaml | 31 ++ Documentation/virt/geniezone/introduction.rst | 86 ++++ Documentation/virt/index.rst | 1 + MAINTAINERS | 11 + arch/arm64/Kbuild | 1 + arch/arm64/geniezone/Makefile | 9 + arch/arm64/geniezone/gzvm_arch_common.h | 110 ++++ arch/arm64/geniezone/vcpu.c | 80 +++ arch/arm64/geniezone/vgic.c | 50 ++ arch/arm64/geniezone/vm.c | 399 +++++++++++++++ drivers/virt/Kconfig | 2 + drivers/virt/geniezone/Kconfig | 16 + drivers/virt/geniezone/Makefile | 12 + drivers/virt/geniezone/gzvm_common.h | 12 + drivers/virt/geniezone/gzvm_exception.c | 62 +++ drivers/virt/geniezone/gzvm_ioeventfd.c | 276 +++++++++++ drivers/virt/geniezone/gzvm_irqfd.c | 382 ++++++++++++++ drivers/virt/geniezone/gzvm_main.c | 147 ++++++ drivers/virt/geniezone/gzvm_mmu.c | 284 +++++++++++ drivers/virt/geniezone/gzvm_vcpu.c | 281 +++++++++++ drivers/virt/geniezone/gzvm_vm.c | 468 ++++++++++++++++++ include/linux/gzvm_drv.h | 203 ++++++++ include/uapi/linux/gzvm.h | 395 +++++++++++++++ 23 files changed, 3318 insertions(+) create mode 100644 Documentation/devicetree/bindings/hypervisor/mediatek,geniezone-hyp.yaml create mode 100644 Documentation/virt/geniezone/introduction.rst create mode 100644 arch/arm64/geniezone/Makefile create mode 100644 arch/arm64/geniezone/gzvm_arch_common.h create mode 100644 arch/arm64/geniezone/vcpu.c create mode 100644 arch/arm64/geniezone/vgic.c create mode 100644 arch/arm64/geniezone/vm.c create mode 100644 drivers/virt/geniezone/Kconfig create mode 100644 drivers/virt/geniezone/Makefile create mode 100644 drivers/virt/geniezone/gzvm_common.h create mode 100644 drivers/virt/geniezone/gzvm_exception.c create mode 100644 drivers/virt/geniezone/gzvm_ioeventfd.c create mode 100644 drivers/virt/geniezone/gzvm_irqfd.c create mode 100644 drivers/virt/geniezone/gzvm_main.c create mode 100644 drivers/virt/geniezone/gzvm_mmu.c create mode 100644 drivers/virt/geniezone/gzvm_vcpu.c create mode 100644 drivers/virt/geniezone/gzvm_vm.c create mode 100644 include/linux/gzvm_drv.h create mode 100644 include/uapi/linux/gzvm.h