On Fri, Jan 14, 2022 at 09:43:11AM +, Jean-Philippe Brucker wrote:
> Hi Jason,
>
> On Thu, Jan 13, 2022 at 09:24:16AM +0800, Jason Wang wrote:
> > The device MUST use PASID TLP prefix for all memory transactions
> > initiated by the virtqueue that belong to a virtqueue group ...
> >
> > >
On Wed, Jan 19, 2022 at 06:50:18PM +0100, Cornelia Huck wrote:
> On Wed, Jan 19 2022, "Michael S. Tsirkin" wrote:
>
> > On Wed, Jan 19, 2022 at 01:23:43PM +0100, Halil Pasic wrote:
> >> On Mon, 17 Jan 2022 17:26:10 -0500
> >> "Michael S. Tsirkin" wrote:
> >>
> >> > On Mon, Jan 17, 2022 at
On Mon, Jan 17, 2022 at 01:57:47PM +0800, Jason Wang wrote:
> How about something like:
>
> "
> Except for the MSI transactions, the device MUST use PASID TLP prefix
> for the following memory transactions initiated by the virtqueue that
> belong to a virtqueue group if a valid PASID is assigned
On Wed, Jan 19 2022, "Michael S. Tsirkin" wrote:
> On Wed, Jan 19, 2022 at 01:23:43PM +0100, Halil Pasic wrote:
>> On Mon, 17 Jan 2022 17:26:10 -0500
>> "Michael S. Tsirkin" wrote:
>>
>> > On Mon, Jan 17, 2022 at 04:39:32PM +0100, Cornelia Huck wrote:
>> > > On Fri, Jan 14 2022, "Michael S.
* Alex Bennée (alex.ben...@linaro.org) wrote:
>
> Hi,
>
> To start the new year I thought would dump some of my thoughts on
> zero-copy between VM domains. For project Stratos we've gamely avoided
> thinking too hard about this while we've been concentrating on solving
> more tractable problems.
On Wed, Jan 19, 2022 at 10:10:38AM +, Parav Pandit wrote:
> Virtio spec should define a minimum expectations from the system such
> as flushing the cache or no cache
well one of the things virtio is trying to do is being compatible with a
wide range of hypervisors/OSes. it might be tricky to
On Wed, Jan 19, 2022 at 01:23:19PM +0100, Halil Pasic wrote:
> On Fri, 14 Jan 2022 17:50:51 -0500
> "Michael S. Tsirkin" wrote:
> > Subject: virtio: clarify feature negotiation
>
> This is in my opinion more of an incompatible change that a
> clarification, but since the commit message does not
On Wed, Jan 19, 2022 at 01:23:43PM +0100, Halil Pasic wrote:
> On Mon, 17 Jan 2022 17:26:10 -0500
> "Michael S. Tsirkin" wrote:
>
> > On Mon, Jan 17, 2022 at 04:39:32PM +0100, Cornelia Huck wrote:
> > > On Fri, Jan 14 2022, "Michael S. Tsirkin" wrote:
> > >
> > > > We state that drivers can
On Wed, Jan 19, 2022 at 04:47:10PM +0200, Max Gurtovoy wrote:
> I agree, I don't see why it's not possible to use a different command opcode
> for vf interrupt configuration and sf interrupt configuration.
>
> We're not short in opcodes and it's very elegant and extendable IMO.
>
> I think the
On Mon, 17 Jan 2022 17:26:10 -0500
"Michael S. Tsirkin" wrote:
> On Mon, Jan 17, 2022 at 04:39:32PM +0100, Cornelia Huck wrote:
> > On Fri, Jan 14 2022, "Michael S. Tsirkin" wrote:
> >
> > > We state that drivers can access config fields before FEATURES_OK. We do
> > > however need them to
On Fri, 14 Jan 2022 17:50:51 -0500
"Michael S. Tsirkin" wrote:
> Subject: virtio: clarify feature negotiation
This is in my opinion more of an incompatible change that a
clarification, but since the commit message does not constitute a part
of the standard, it does not matter that much.
[..]
>
On Wed, Jan 19, 2022 at 12:21:36PM +0800, Jason Wang wrote:
>
> 在 2022/1/18 下午3:40, Michael S. Tsirkin 写道:
> > On Tue, Jan 18, 2022 at 07:30:34AM +, Parav Pandit wrote:
> > >
> > > > From: Michael S. Tsirkin
> > > > Sent: Tuesday, January 18, 2022 12:42 PM
> > > >
> > > > On Tue, Jan 18,
On Wed, Jan 19, 2022 at 12:16:47PM +0800, Jason Wang wrote:
> > We also need
> > - something like injecting cvq commands to control rx mode from the admin
> > device
> > - page fault / dirty page handling
> >
> > these two seem to call for a vq.
>
> Right, but vq is not necessarily for PF if we
On Wed, Jan 19, 2022 at 08:15:50AM +, Parav Pandit wrote:
> > > Virtio driver should not incur any additional complexity in re-reading
> > > vector
> > etc.
> >
> > I think it does this already.
> When does it re-read?
> I do not follow your point of "ask driver to read back any vector".
On Wed, Jan 19, 2022 at 11:04:50AM +0800, Jason Wang wrote:
> Exactly, another call for the using the PRS queue instead. But generally
> speaking, admin virtqueue limit or complicate the functions that can be
> exported to guest. That's why I suggest to decouple all the possible
> features out of
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