On Tue, Nov 11, 2025 at 10:09:37AM -0700, Alex Williamson wrote: > On Tue, 11 Nov 2025 06:52:05 -0800 > Alex Mastro <[email protected]> wrote: > > > vfio_dma_mapping_test and vfio_pci_driver_test currently use iova=vaddr > > as part of DMA mapping operations. The assumption that these IOVAs > > are legal has held up on all the hardware we've tested so far, but is > > not guaranteed. Make the tests more robust by using iova_allocator to > > vend IOVAs, which queries legally accessible IOVAs from the underlying > > IOMMUFD or VFIO container. > > I've reported hardware that it doesn't work on, QEMU emulates such > hardware. The commit message suggests this is more of a theoretical > problem. Thanks,
Agree that it's misleading. I'll update the commit message to describe the things you described earlier.
