On Sat, 2013-05-25 at 07:21 -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, May 24, 2013 at 11:24:26AM -0600, Alex Williamson wrote:
> > This series let's the vfio type1 iommu backend take advantage of iommu
> > large page support. See patch 2/2 for the details. This has been
> > tested on both amd
On Sat, 2013-05-25 at 07:20 -0400, Konrad Rzeszutek Wilk wrote:
> > + * Turns out AMD IOMMU has a page table bug where it won't map large pages
> > + * to a region that previously mapped smaller pages. This should be fixed
> > + * soon, so this is just a temporary workaround to break mappings down
On Fri, May 24, 2013 at 11:24:26AM -0600, Alex Williamson wrote:
> This series let's the vfio type1 iommu backend take advantage of iommu
> large page support. See patch 2/2 for the details. This has been
> tested on both amd_iommu and intel_iommu, but only my AMD system has
> large page support.
> + * Turns out AMD IOMMU has a page table bug where it won't map large pages
> + * to a region that previously mapped smaller pages. This should be fixed
> + * soon, so this is just a temporary workaround to break mappings down into
> + * PAGE_SIZE. Better to map smaller pages than nothing.
> +
