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
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