Re: [PATCH v1 0/4] virtio-msg transport layer

Bertrand Marquis
2026-02-25T10:02:56Z

Hi Michael,

[snip]

>>>>
>>>>
>>>> I frankly expect an ARM FF-A bus binding transport section in virtio-spec.
>>>> So that device and driver can inter-operate implemented by two different entities.
>>>> Only virtio level messages do not seem sufficient.
>>>
>>> I agree at least one should be shown at least as an rfc.
>>
>> Here is a link to the current virtio message bus over FF-A specification:
>> https://developer.arm.com/documentation/den0153/0101/
>>
>> 1.0 Alpha 1 version in sync with this version of the virtio message spec will be released later today, you will be redirected to
>> 1.0 Alpha 0 version until it is which is in sync with the previous RFC we sent.
>>
>> Regards
>> Bertrand
>>
>>
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>
>
> thanks. pls include that in the series as [PATCH RFC 5/4]
>

We are not planning to have this included in the virtio specification but maintained by arm as an independent specification.
FF-A is an arm specification and as such virtio message bus over FF-A is arm specific.

We can reference it as a bus specification example in the virtio specification if you want (as an external link).

Regards
Bertrand

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