On Thu, 22 Feb 2018 15:59:15 -0700
Alex Williamson wrote:
> On Thu, 1 Feb 2018 01:27:38 -0500
> Suravee Suthikulpanit wrote:
>
> > VFIO IOMMU type1 currently upmaps IOVA pages synchronously, which requires
> > IOTLB flushing for every unmapping. This results in large IOTLB flushing
> > overhea
On Fri, 23 Feb 2018 08:20:51 +
"Tian, Kevin" wrote:
> > From: Alex Williamson
> > Sent: Friday, February 23, 2018 6:59 AM
> >
> > On Thu, 1 Feb 2018 01:27:38 -0500
> > Suravee Suthikulpanit wrote:
> >
> > > VFIO IOMMU type1 currently upmaps IOVA pages synchronously, which
> > requires
> From: Alex Williamson
> Sent: Friday, February 23, 2018 6:59 AM
>
> On Thu, 1 Feb 2018 01:27:38 -0500
> Suravee Suthikulpanit wrote:
>
> > VFIO IOMMU type1 currently upmaps IOVA pages synchronously, which
> requires
> > IOTLB flushing for every unmapping. This results in large IOTLB flushing
On Thu, 1 Feb 2018 01:27:38 -0500
Suravee Suthikulpanit wrote:
> VFIO IOMMU type1 currently upmaps IOVA pages synchronously, which requires
> IOTLB flushing for every unmapping. This results in large IOTLB flushing
> overhead when handling pass-through devices has a large number of mapped
> IOVA
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