Hi Juergen, A colleague is seeing a failure on x86 in Linux Dom0. The failure is pin_user_pages_fast with addresses that correspond to foreign memory pages:
- QEMU maps a domU address using dma_memory_map (xen_map_cache) - QEMU calls an IOCTL to the TEE subsystem with the Virtual Address returned by dma_memory_map - Linux tee_shm_register->pin_user_pages_fast Returns -14 - drivers/tee/tee_shm.c Once upon a time it used to be the case that get_user_pages_fast would fail on Xen because we didn't have a struct page corresponding to foreign memory mappings. But that hasn't been the case for years now. Any other ideas why it would fail? Cheers, Stefano
