Re: [PATCH 0/2] KVM: MMU: support VMAs that got remap_pfn_range-ed

[Neo Jia]

On Tue, Jul 05, 2016 at 02:18:28PM +0200, Paolo Bonzini wrote:
> 
> 
> 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.

Thanks!

> 
> Paolo
>