Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 28 Oct 2015 16:07:48 +0200 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH v3 0/3] virtio DMA API core stuff |
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On Wed, Oct 28, 2015 at 10:37:56PM +0900, David Woodhouse wrote: > On Wed, 2015-10-28 at 13:23 +0200, Michael S. Tsirkin wrote: > > On Wed, Oct 28, 2015 at 05:36:53PM +0900, Benjamin Herrenschmidt > > wrote: > > > On Wed, 2015-10-28 at 16:40 +0900, Christian Borntraeger wrote: > > > > We have discussed that at kernel summit. I will try to implement > > > > a dummy dma_ops for > > > > s390 that does 1:1 mapping and Ben will look into doing some > > > > quirk to handle "old" > > > > code in addition to also make it possible to mark devices as > > > > iommu bypass (IIRC, > > > > via device tree, Ben?) > > > > > > Something like that yes. I'll look into it when I'm back home. > > > > > > Cheers, > > > Ben. > > > > OK so I guess that means we should prefer a transport-specific > > interface in virtio-pci then. > > Why?
Because you said you are doing something device tree specific for ARM, aren't you?
-- MST
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