linux-kernel - [PATCH v3 0/7] GenieZone hypervisor drivers

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Message-ID: <20230512080405.12043-1-yi-de.wu@mediatek.com>
Date:   Fri, 12 May 2023 16:03:58 +0800
From:   Yi-De Wu <yi-de.wu@...iatek.com>
To:     Yingshiuan Pan <yingshiuan.pan@...iatek.com>,
        Ze-Yu Wang <ze-yu.wang@...iatek.com>,
        Yi-De Wu <yi-de.wu@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-doc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-arch@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        "Trilok Soni" <quic_tsoni@...cinc.com>,
        David Bradil <dbrazdil@...gle.com>,
        Jade Shih <jades.shih@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>,
        Ivan Tseng <ivan.tseng@...iatek.com>,
        My Chuang <my.chuang@...iatek.com>,
        Shawn Hsiao <shawn.hsiao@...iatek.com>,
        PeiLun Suei <peilun.suei@...iatek.com>,
        Liju Chen <liju-clr.chen@...iatek.com>
Subject: [PATCH v3 0/7] GenieZone hypervisor drivers

This series is based on linux-next, tag: next-20230512.

GenieZone is MediaTek proprietary hypervisor solution, and it is running
in EL2 stand alone as a type-I hypervisor. It is a pure EL2
implementation which implies it does not rely any specific host VM, and
this behavior improves GenieZone's security as it limits its interface.

To enable guest VMs running, a driver (gzvm) is provided for VMM (virtual
machine monitor) to operate. Currently, the gzvm driver supports only
crosvm.

This series supports ioctl interfaces for userspace VMM(eg., crosvm) to
operate guest VMs lifecycle, irqchip for virtual interrupt handling,
asynchronous notifcation mechanism for VMM.

Changes in v3:
- 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

v1: https://lore.kernel.org/all/20230413090735.4182-1-yi-de.wu@mediatek.com/

Yi-De Wu (7):
  docs: geniezone: Introduce GenieZone hypervisor
  dt-bindings: hypervisor: Add MediaTek GenieZone hypervisor
  virt: geniezone: Introduce GenieZone hypervisor support
  virt: geniezone: Add vcpu support
  virt: geniezone: Add irqchip support for virtual interrupt injection
  virt: geniezone: Add irqfd support
  virt: geniezone: Add ioeventfd support

 .../hypervisor/mediatek,geniezone-hyp.yaml    |  31 +
 Documentation/virt/geniezone/introduction.rst |  34 ++
 MAINTAINERS                                   |  13 +
 arch/arm64/Kbuild                             |   1 +
 arch/arm64/geniezone/Makefile                 |   9 +
 arch/arm64/geniezone/gzvm_arch_common.h       |  95 ++++
 arch/arm64/geniezone/vcpu.c                   |  84 +++
 arch/arm64/geniezone/vgic.c                   |  91 +++
 arch/arm64/geniezone/vm.c                     | 174 ++++++
 arch/arm64/include/uapi/asm/gzvm_arch.h       |  47 ++
 drivers/virt/Kconfig                          |   2 +-
 drivers/virt/geniezone/Kconfig                |  17 +
 drivers/virt/geniezone/Makefile               |  11 +
 drivers/virt/geniezone/gzvm_common.h          |  12 +
 drivers/virt/geniezone/gzvm_ioeventfd.c       | 263 +++++++++
 drivers/virt/geniezone/gzvm_irqchip.c         |  13 +
 drivers/virt/geniezone/gzvm_irqfd.c           | 537 ++++++++++++++++++
 drivers/virt/geniezone/gzvm_main.c            | 151 +++++
 drivers/virt/geniezone/gzvm_vcpu.c            | 260 +++++++++
 drivers/virt/geniezone/gzvm_vm.c              | 448 +++++++++++++++
 include/linux/gzvm_drv.h                      | 154 +++++
 include/uapi/asm-generic/Kbuild               |   1 +
 include/uapi/asm-generic/gzvm_arch.h          |  10 +
 include/uapi/linux/gzvm.h                     | 270 +++++++++
 24 files changed, 2727 insertions(+), 1 deletion(-)
 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 arch/arm64/include/uapi/asm/gzvm_arch.h
 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_ioeventfd.c
 create mode 100644 drivers/virt/geniezone/gzvm_irqchip.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_vcpu.c
 create mode 100644 drivers/virt/geniezone/gzvm_vm.c
 create mode 100644 include/linux/gzvm_drv.h
 create mode 100644 include/uapi/asm-generic/gzvm_arch.h
 create mode 100644 include/uapi/linux/gzvm.h

-- 
2.18.0