On Fri, Oct 09, 2020 at 06:10:52PM +0100, Catalin Marinas wrote: > kdump wants DMA-able memory and,
DMAable by whom? The only way to guranteed DMAable memory is to use the DMA memory allocator(s) and pass a specific device to them. Everyting else is just fundamentally broken. Note that even when device is not DMAable we can still use swiotlb to access it. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
