On 27 June 2016 at 10:47, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote: > As for the USB case, I can't really figure out what is going on here, > but I am fairly certain it is a different issue. If this is related to > DMA, I wonder if adding the 'dma-coherent' property to the PCIe root > complex node fixes anything. I get the impression dma-coherent is the right thing to advertise anyway. Do you have the documentation to hand that specifies what "dma-coherent" means? The Documentation/devicetree docs in the kernel tree seem to rather unhelpfully define it as "Present if dma operations are coherent", which doesn't really clarify anything to me... thanks -- PMM _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm