On 05/07/2016 07:41, Neo Jia wrote: > On Thu, Jun 30, 2016 at 03:01:49PM +0200, Paolo Bonzini wrote: >> The vGPU folks would like to trap the first access to a BAR by setting >> vm_ops on the VMAs produced by mmap-ing a VFIO device. The fault handler >> then can use remap_pfn_range to place some non-reserved pages in the VMA. >> >> KVM lacks support for this kind of non-linear VM_PFNMAP mapping, and these >> patches should fix this. > > Hi Paolo, > > I have tested your patches with the mediated passthru patchset that is being > reviewed in KVM and QEMU mailing list. > > The fault handler gets called successfully and the previously mapped memory > gets > unmmaped correctly via unmap_mapping_range.
Great, then I'll include them in 4.8. Paolo
