Hi, In patch series[1], I put forward some fixes and optimizations for vfio_iommu_type1. This extracts and improves the fix part of it. [1] https://lore.kernel.org/linux-iommu/20201210073425.25960-1-zhukeqian1@xxxxxxxxxx/T/#t Thanks, Keqian Keqian Zhu (5): vfio/iommu_type1: Fixes vfio_dma_populate_bitmap to avoid dirty lose vfio/iommu_type1: Populate dirty bitmap for new vfio_dma vfio/iommu_type1: Populate dirty bitmap when attach group vfio/iommu_type1: Carefully use unmap_unpin_all during dirty tracking vfio/iommu_type1: Move sanity_check_pfn_list to unmap_unpin_all drivers/vfio/vfio_iommu_type1.c | 107 +++++++++++++++++++++----------- 1 file changed, 72 insertions(+), 35 deletions(-) -- 2.19.1
