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Re: [RFC/PATCH v0 12/12] gunyah: Documentation
From: |
Alex Bennée |
Subject: |
Re: [RFC/PATCH v0 12/12] gunyah: Documentation |
Date: |
Thu, 12 Oct 2023 15:55:59 +0100 |
User-agent: |
mu4e 1.11.22; emacs 29.1.50 |
Srivatsa Vaddagiri <quic_svaddagi@quicinc.com> writes:
> * Philippe Mathieu-Daud? <philmd@linaro.org> [2023-10-12 06:52:04]:
>
>> > +Limitations
>> > +-----------
>> > +
>> > +Below features are not yet supported.
>> > +
>> > +* virtio-pci (support for which in Qemu seems to rely heavily on KVM,
>> > which
>> > + needs to be made multi-hypervisor friendly).
>>
>> Is QUIC interested in working on that? My work introducing
>> AccelCPUState to make CPUState accel-agnostic was done in that
>> direction, but I didn't notice much interest in the community
>> so I unprioritized it.
>
> Hi Phil,
> We do want to see Gunyah support merged in Qemu at the earliest (as soon
> as the kernel driver is merged upstream that is), so any dependent change in
> Qemu for Gunyah would be of much interest to us! I am not sure though if Quic
> can sign up for the entire "make cpustate accel agnostic" work. Can you point
> to your ongoing work that I could take a look at? Would that address
> virtio-pci
> becoming accelerator agnostic?
Why wouldn't virtio-pci be accelerator agnostic?
It works with KVM and TCG for example. There are I suppose complications
if you want to share emulated devices with a real PCI bus rather than
emulating it all within QEMU.
>
> Thanks!
> vatsa
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
[RFC/PATCH v0 01/12] hw/arm/virt: Avoid NULL pointer de-reference, Srivatsa Vaddagiri, 2023/10/11
[RFC/PATCH v0 05/12] gunyah: Support memory assignment, Srivatsa Vaddagiri, 2023/10/11
[RFC/PATCH v0 06/12] gunyah: Add IRQFD and IOEVENTFD functions, Srivatsa Vaddagiri, 2023/10/11
Re: [RFC/PATCH v0 00/12] Gunyah hypervisor support, Paolo Bonzini, 2023/10/18