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Re: [virtio-comment] device reset should entail QueuePFN reset (for all queues) on virtio-mmio

From
Rusty Russell <>
Date
2013-10-29T12:53:21+00:00
ID
Thread
Re: [virtio-comment] device reset should entail QueuePFN reset (for all queues) on virtio-mmio
Laszlo Ersek <> writes:
> On 10/29/13 06:29, Rusty Russell wrote:
>> Laszlo Ersek <> writes:
>
>>> So:
>>> - What's the motivation for the "acquire/release" semantics of QueuePFN?
>>> - Am I right that device reset should force a QueuePFN reset?
>> 
>> Hi Laszlo,
>> 
>>         The latching behaviour is basically a debugging helper, but
>> clearly device reset should set it to 0.
>> 
>> For the v2 layout proposed for the spec, we have this:
>
> Is there a public git repo for v2?

The official one is the SVN repo:

https://tools.oasis-open.org/version-control/browse/wsvn/virtio/?sc=0

Works fine with git svn.

>> I suggest we add:
>> 
>>    This register will be 0 on reset.
>
> ... "for all valid QueueSel values"?

Yes, let's be explicit.

Cheers,
Rusty.
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