Re: [PATCH V2] VFIO driver: Non-privileged user level PCI drivers

From: Greg KH
Date: Wed Jun 09 2010 - 11:25:53 EST

On Wed, Jun 09, 2010 at 02:04:53PM +0300, Avi Kivity wrote:
> On 06/09/2010 12:21 AM, Tom Lyon wrote:
> >The VFIO "driver" is used to allow privileged AND non-privileged processes to
> >implement user-level device drivers for any well-behaved PCI, PCI-X, and PCIe
> >devices.
> > Signed-off-by: Tom Lyon<pugs@xxxxxxxxx>
> >---
> >This version now requires an IOMMU domain to be set before any access to
> >device registers is granted (except that config space may be read). In
> >addition, the VFIO_DMA_MAP_ANYWHERE is dropped - it used the dma_map_sg API
> >which does not have sufficient controls around IOMMU usage. The IOMMU domain
> >is obtained from the 'uiommu' driver which is included in this patch.
> >
> >Various locking, security, and documentation issues have also been fixed.
> >
> >Please commit - it or me!
> >But seriously, who gets to commit this? Avi for KVM?
> Definitely not me.
> >or GregKH for drivers?
> I guess.

If this ever gets that far, I'll be glad to take it.


greg k-h
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