Re: [PATCH v12 Kernel 7/7] vfio: Selective dirty page tracking if IOMMU backed device pins pages

2020-02-10 Thread Alex Williamson
On Sat, 8 Feb 2020 01:12:34 +0530 Kirti Wankhede wrote: > Added a check such that only singleton IOMMU groups can pin pages. > From the point when vendor driver pins any pages, consider IOMMU group > dirty page scope to be limited to pinned pages. > > To optimize to avoid walking list often,

[PATCH v12 Kernel 7/7] vfio: Selective dirty page tracking if IOMMU backed device pins pages

2020-02-07 Thread Kirti Wankhede
Added a check such that only singleton IOMMU groups can pin pages. >From the point when vendor driver pins any pages, consider IOMMU group dirty page scope to be limited to pinned pages. To optimize to avoid walking list often, added flag pinned_page_dirty_scope to indicate if all of the