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]. This patch series is thus *NOT YET READY* for merge. Early version 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. Instructions to build hypervisor and test this patch are provided in this patch series. Limitations: 1) SMP is not yet supported. This restriction will be removed in the next version of this patch series. 2) virtio-pci is not yet supported. hw/virtio/virtio-pci.c seems to support only KVM and would need changes to support other hypervisors. If there is any ongoing work in this regard, would like to build upon it and add support for Gunyah hypervisor. Ref: 1. https://lore.kernel.org/lkml/20230613172054.3959700-1-quic_eber...@quicinc.com/ Base commit on which this series was tested: d77b7b28a8 target/arm: Fix 64-bit SSRA Srivatsa Vaddagiri (12): hw/arm/virt: Avoid NULL pointer de-reference update-linux-headers: Include gunyah.h gunyah: Basic support gunyah: Add VM properties 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 | 10 + accel/Kconfig | 3 + accel/gunyah/gunyah-accel-ops.c | 168 +++++++++ accel/gunyah/gunyah-all.c | 629 ++++++++++++++++++++++++++++++++ accel/gunyah/meson.build | 7 + accel/meson.build | 1 + accel/stubs/gunyah-stub.c | 13 + accel/stubs/meson.build | 1 + docs/about/build-platforms.rst | 2 +- docs/system/arm/gunyah.rst | 214 +++++++++++ hw/arm/boot.c | 3 +- hw/arm/virt.c | 27 +- hw/intc/arm_gicv3_common.c | 3 + hw/intc/arm_gicv3_gunyah.c | 106 ++++++ hw/intc/arm_gicv3_its_common.c | 4 + hw/intc/meson.build | 1 + include/hw/core/cpu.h | 6 + include/sysemu/gunyah.h | 58 +++ include/sysemu/gunyah_int.h | 61 ++++ meson.build | 9 + meson_options.txt | 2 + scripts/meson-buildoptions.sh | 3 + scripts/update-linux-headers.sh | 3 +- target/arm/cpu64.c | 5 +- target/arm/gunyah.c | 144 ++++++++ target/arm/meson.build | 4 + 26 files changed, 1480 insertions(+), 7 deletions(-) create mode 100644 accel/gunyah/gunyah-accel-ops.c create mode 100644 accel/gunyah/gunyah-all.c create mode 100644 accel/gunyah/meson.build create mode 100644 accel/stubs/gunyah-stub.c create mode 100644 docs/system/arm/gunyah.rst create mode 100644 hw/intc/arm_gicv3_gunyah.c create mode 100644 include/sysemu/gunyah.h create mode 100644 include/sysemu/gunyah_int.h create mode 100644 target/arm/gunyah.c -- 2.25.1
