[+cc folks from ./scripts/get_maintainer.pl -f drivers/iommu] On Fri, Oct 27, 2023 at 12:17:17PM -0700, Eric Pilmore wrote: > Need a little IOVA/IOMMU help. > > Is it correct that the IOVA address range for a device goes from > address 0x0 up to the dma-mask of the respective device? > > Is it correct to assume that the base of the IOVA address space for a > device will always be zero (0x0)? Is there any reason to think that > this has changed in some newer iteration of the kernel, perhaps 5.10, > and that the base could be non-zero? > > I realize an IOVA itself can be non-zero. I'm trying to verify what > the base address is of the IOVA space as a whole on a per device > basis. > > Thanks, > Eric Pilmore
