* VIRTIO_F_IOMMU_PLATFORM
@ 2016-09-27 8:57 Will Deacon
2016-10-07 4:24 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
0 siblings, 1 reply; 5+ messages in thread
From: Will Deacon @ 2016-09-27 8:57 UTC (permalink / raw)
To: mst; +Cc: virtualization
Hi Michael,
In commit 1a937693993f ("virtio: new feature to detect IOMMU device quirk"),
you added a new feature bit (VIRTIO_F_IOMMU_PLATFORM) to describe whether
or not a given virtio device requires physical address or bus addresses.
Is there a plan to get this incorporated into the virtio spec [1]? At the
moment, I can't see a working draft that includes the new bit. Having it
in the spec would help convince implementors that it's not just a Linux
thing.
Thanks,
Will
[1] http://docs.oasis-open.org/virtio/virtio/v1.0/cs04/virtio-v1.0-cs04.html
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: VIRTIO_F_IOMMU_PLATFORM
2016-09-27 8:57 VIRTIO_F_IOMMU_PLATFORM Will Deacon
@ 2016-10-07 4:24 ` Michael S. Tsirkin
2016-10-10 16:59 ` VIRTIO_F_IOMMU_PLATFORM Will Deacon
0 siblings, 1 reply; 5+ messages in thread
From: Michael S. Tsirkin @ 2016-10-07 4:24 UTC (permalink / raw)
To: Will Deacon; +Cc: virtualization
On Tue, Sep 27, 2016 at 09:57:14AM +0100, Will Deacon wrote:
> Hi Michael,
>
> In commit 1a937693993f ("virtio: new feature to detect IOMMU device quirk"),
> you added a new feature bit (VIRTIO_F_IOMMU_PLATFORM) to describe whether
> or not a given virtio device requires physical address or bus addresses.
>
> Is there a plan to get this incorporated into the virtio spec [1]? At the
> moment, I can't see a working draft that includes the new bit. Having it
> in the spec would help convince implementors that it's not just a Linux
> thing.
>
> Thanks,
>
> Will
>
> [1] http://docs.oasis-open.org/virtio/virtio/v1.0/cs04/virtio-v1.0-cs04.html
Absolutely. Want to contribute a patch?
--
MST
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: VIRTIO_F_IOMMU_PLATFORM
2016-10-07 4:24 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
@ 2016-10-10 16:59 ` Will Deacon
2016-10-10 18:07 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
0 siblings, 1 reply; 5+ messages in thread
From: Will Deacon @ 2016-10-10 16:59 UTC (permalink / raw)
To: Michael S. Tsirkin; +Cc: virtualization
On Fri, Oct 07, 2016 at 07:24:34AM +0300, Michael S. Tsirkin wrote:
> On Tue, Sep 27, 2016 at 09:57:14AM +0100, Will Deacon wrote:
> > Hi Michael,
> >
> > In commit 1a937693993f ("virtio: new feature to detect IOMMU device quirk"),
> > you added a new feature bit (VIRTIO_F_IOMMU_PLATFORM) to describe whether
> > or not a given virtio device requires physical address or bus addresses.
> >
> > Is there a plan to get this incorporated into the virtio spec [1]? At the
> > moment, I can't see a working draft that includes the new bit. Having it
> > in the spec would help convince implementors that it's not just a Linux
> > thing.
> >
> > Thanks,
> >
> > Will
> >
> > [1] http://docs.oasis-open.org/virtio/virtio/v1.0/cs04/virtio-v1.0-cs04.html
>
> Absolutely. Want to contribute a patch?
I could have a look. Is there a git repo for the sources to the working
draft?
Will
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: VIRTIO_F_IOMMU_PLATFORM
2016-10-10 16:59 ` VIRTIO_F_IOMMU_PLATFORM Will Deacon
@ 2016-10-10 18:07 ` Michael S. Tsirkin
2016-10-11 1:51 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
0 siblings, 1 reply; 5+ messages in thread
From: Michael S. Tsirkin @ 2016-10-10 18:07 UTC (permalink / raw)
To: Will Deacon; +Cc: virtualization
On Mon, Oct 10, 2016 at 05:59:03PM +0100, Will Deacon wrote:
> On Fri, Oct 07, 2016 at 07:24:34AM +0300, Michael S. Tsirkin wrote:
> > On Tue, Sep 27, 2016 at 09:57:14AM +0100, Will Deacon wrote:
> > > Hi Michael,
> > >
> > > In commit 1a937693993f ("virtio: new feature to detect IOMMU device quirk"),
> > > you added a new feature bit (VIRTIO_F_IOMMU_PLATFORM) to describe whether
> > > or not a given virtio device requires physical address or bus addresses.
> > >
> > > Is there a plan to get this incorporated into the virtio spec [1]? At the
> > > moment, I can't see a working draft that includes the new bit. Having it
> > > in the spec would help convince implementors that it's not just a Linux
> > > thing.
> > >
> > > Thanks,
> > >
> > > Will
> > >
> > > [1] http://docs.oasis-open.org/virtio/virtio/v1.0/cs04/virtio-v1.0-cs04.html
> >
> > Absolutely. Want to contribute a patch?
>
> I could have a look. Is there a git repo for the sources to the working
> draft?
>
> Will
Yes, though unfortunately it's svn :(
git svn clone --stdlayout https://tools.oasis-open.org/version-control/svn/virtio
Check out the main branch.
Patches must be sent to virtio-dev or virtio-comments list (subscription
required).
Thanks!
--
MST
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: VIRTIO_F_IOMMU_PLATFORM
2016-10-10 18:07 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
@ 2016-10-11 1:51 ` Michael S. Tsirkin
0 siblings, 0 replies; 5+ messages in thread
From: Michael S. Tsirkin @ 2016-10-11 1:51 UTC (permalink / raw)
To: Will Deacon; +Cc: virtualization
On Mon, Oct 10, 2016 at 09:07:35PM +0300, Michael S. Tsirkin wrote:
> On Mon, Oct 10, 2016 at 05:59:03PM +0100, Will Deacon wrote:
> > On Fri, Oct 07, 2016 at 07:24:34AM +0300, Michael S. Tsirkin wrote:
> > > On Tue, Sep 27, 2016 at 09:57:14AM +0100, Will Deacon wrote:
> > > > Hi Michael,
> > > >
> > > > In commit 1a937693993f ("virtio: new feature to detect IOMMU device quirk"),
> > > > you added a new feature bit (VIRTIO_F_IOMMU_PLATFORM) to describe whether
> > > > or not a given virtio device requires physical address or bus addresses.
> > > >
> > > > Is there a plan to get this incorporated into the virtio spec [1]? At the
> > > > moment, I can't see a working draft that includes the new bit. Having it
> > > > in the spec would help convince implementors that it's not just a Linux
> > > > thing.
> > > >
> > > > Thanks,
> > > >
> > > > Will
> > > >
> > > > [1] http://docs.oasis-open.org/virtio/virtio/v1.0/cs04/virtio-v1.0-cs04.html
> > >
> > > Absolutely. Want to contribute a patch?
> >
> > I could have a look. Is there a git repo for the sources to the working
> > draft?
> >
> > Will
>
> Yes, though unfortunately it's svn :(
>
> git svn clone --stdlayout https://tools.oasis-open.org/version-control/svn/virtio
>
> Check out the main branch.
>
> Patches must be sent to virtio-dev or virtio-comments list (subscription
> required).
>
> Thanks!
A faster way is to go through a git mirror. See
https://tools.oasis-open.org/version-control/svn/virtio/trunk/git-svn.txt
section named "Faster initial clone from git mirror".
> --
> MST
^ permalink raw reply [flat|nested] 5+ messages in thread
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2016-09-27 8:57 VIRTIO_F_IOMMU_PLATFORM Will Deacon
2016-10-07 4:24 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
2016-10-10 16:59 ` VIRTIO_F_IOMMU_PLATFORM Will Deacon
2016-10-10 18:07 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
2016-10-11 1:51 ` VIRTIO_F_IOMMU_PLATFORM Michael S. Tsirkin
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