lkml.org 
[lkml]   [2022]   [Jun]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH] xen: don't require virtio with grants for non-PV guests
From
On 15.06.22 15:43, Christoph Hellwig wrote:
> On Wed, Jun 15, 2022 at 02:53:54PM +0200, Juergen Gross wrote:
>> On 15.06.22 13:54, Christoph Hellwig wrote:
>>> On Wed, Jun 15, 2022 at 01:39:01PM +0200, Juergen Gross wrote:
>>>> No, it doesn't. I'm working on a qemu patch series enabling the qemu
>>>> based backends to support grants with virtio. The code is working fine
>>>> on x86, too (apart from the fact that the backends aren't ready yet).
>>>
>>> The code right now in mainline only ever sets the ops for DMA. So
>>> I can't see how you could make it work.
>>
>> Ah, you are right. I was using a guest with an older version of the series.
>> Sorry for the noise.
>
> No problem. But whatever you end up using to enable the grant DMA
> ops n x86 should also require the platform access feature. We already
> have that information so we can make use of it.

Yes, of course.


Juergen
[unhandled content-type:application/pgp-keys][unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2022-06-15 15:47    [W:0.055 / U:0.792 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site