mbox series

[RFC/PATCH,v2,00/12] Gunyah hypervisor support

Message ID 20240516143356.1739402-1-quic_svaddagi@quicinc.com (mailing list archive)
Headers show
Series Gunyah hypervisor support | expand

Message

Srivatsa Vaddagiri May 16, 2024, 2:33 p.m. UTC 
Gunyah is an open-source Type-1 hypervisor, that is currently supported on ARM64
architecture. Source code for it can be obtained from:

https://github.com/quic/gunyah-hypervisor

This patch series adds support for Gunyah hypervisor via a new
accelerator option, 'gunyah'. This patch series is based on the Linux kernel's
Gunyah driver, which is being actively developed and not yet merged upstream
[1, 2].

This patch series is thus *NOT YET READY* for merge. Early versions of this patch
is being published to solicit comments from Qemu community.

This patch has been tested with the open-source version of Gunyah hypervisor and
using v14 Linux Gunyah driver [1]. Instructions to build hypervisor and test
this patch are provided in this patch series.

Changes in v2:
* Extended ARM virt machine to support confidential guests 
* Extended CPU run loop to recognize VM shutdown

Changes in v1:

* Fixed SMP boot issues
* Addressed comments received for previous version (v0) of the patches series

Limitations:

* Confidential guests (or protected VMs) are not yet supported by Linux
  Gunyah driver published upstream. I have tested it using a variant of the driver
  available in Android Common Kernel [3].

* Instructions provided to test with open-source Gunyah is based on v14 Gunyah driver
  [1]. Updated instruction that is based on v17 Gunyah driver will be provided
  later.

Prior version, v1, of this patch can be referenced at:

	https://lists.nongnu.org/archive/html/qemu-devel/2024-01/msg01397.html

Ref:

1. https://lore.kernel.org/lkml/20230613172054.3959700-1-quic_eberman@quicinc.com/
2. https://lore.kernel.org/lkml/20240222-gunyah-v17-0-1e9da6763d38@quicinc.com/
3. https://android.googlesource.com/kernel/common/+/refs/heads/android14-6.1/drivers/virt/gunyah/

Base commit on which this series was tested:

4e66a08546 (origin/master, origin/HEAD) Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging


Srivatsa Vaddagiri (12):
  gunyah: UAPI header (NOT FOR MERGE)
  accel: Introduce check_capability() callback
  hw/arm/virt: confidential guest support
  gunyah: Basic support
  gunyah: Support memory assignment
  gunyah: Add IRQFD and IOEVENTFD functions
  gunyah: Add gicv3 interrupt controller
  gunyah: Specific device-tree location
  gunyah: Customize device-tree
  gunyah: CPU execution loop
  gunyah: Workarounds (NOT FOR MERGE)
  gunyah: Documentation

 MAINTAINERS                     |  11 +
 docs/about/build-platforms.rst  |   2 +-
 docs/system/arm/gunyah.rst      | 326 +++++++++++++++
 meson.build                     |  12 +-
 qapi/qom.json                   |  14 +
 include/hw/arm/virt.h           |   1 +
 include/sysemu/accel-ops.h      |   8 +
 include/sysemu/gunyah.h         |  36 ++
 include/sysemu/gunyah_int.h     |  67 +++
 linux-headers/linux/gunyah.h    | 311 ++++++++++++++
 accel/gunyah/gunyah-accel-ops.c | 128 ++++++
 accel/gunyah/gunyah-all.c       | 698 ++++++++++++++++++++++++++++++++
 accel/stubs/gunyah-stub.c       |  28 ++
 hw/arm/boot.c                   |  17 +-
 hw/arm/virt.c                   | 173 +++++++-
 hw/intc/arm_gicv3_common.c      |   3 +
 hw/intc/arm_gicv3_gunyah.c      | 106 +++++
 hw/intc/arm_gicv3_its_common.c  |   3 +
 target/arm/cpu.c                |   3 +-
 target/arm/cpu64.c              |   5 +-
 target/arm/gunyah.c             | 142 +++++++
 accel/Kconfig                   |   3 +
 accel/gunyah/meson.build        |   7 +
 accel/meson.build               |   1 +
 accel/stubs/meson.build         |   1 +
 hw/intc/meson.build             |   1 +
 meson_options.txt               |   2 +
 scripts/meson-buildoptions.sh   |   3 +
 target/arm/meson.build          |   3 +
 29 files changed, 2107 insertions(+), 8 deletions(-)
 create mode 100644 docs/system/arm/gunyah.rst
 create mode 100644 include/sysemu/gunyah.h
 create mode 100644 include/sysemu/gunyah_int.h
 create mode 100644 linux-headers/linux/gunyah.h
 create mode 100644 accel/gunyah/gunyah-accel-ops.c
 create mode 100644 accel/gunyah/gunyah-all.c
 create mode 100644 accel/stubs/gunyah-stub.c
 create mode 100644 hw/intc/arm_gicv3_gunyah.c
 create mode 100644 target/arm/gunyah.c
 create mode 100644 accel/gunyah/meson.build