Messages in this thread | | | Date | Sat, 4 Aug 2018 01:15:00 -0700 | From | Christoph Hellwig <> | Subject | Re: [RFC 0/4] Virtio uses DMA API for all devices |
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On Fri, Aug 03, 2018 at 10:17:32PM +0300, Michael S. Tsirkin wrote: > It seems reasonable to teach a platform to override dma-range > for a specific device e.g. in case it knows about bugs in ACPI.
A platform will be able override dma-range using the dev->bus_dma_mask field starting in 4.19. But we'll still need a way how to
a) document in the virtio spec that all bus dma quirks are to be applied b) a way to document in a virtio-related spec how the bus handles dma for Ben's totally fucked up hypervisor. Without that there is not way we'll get interoperable implementations.
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