[0/7] vfio: iommu_type1: Some fixes and optimization

Message

zhukeqian Dec. 10, 2020, 7:34 a.m. UTC

Hi folks,

This patch series aim to fix up or optimize some code about vfio
dirty log tracking.

patch   1: Optimize dirty log when unwind pin pages.
patch 2-3: Optimize promoting pinned_page_dirty_scope.
patch   4: Fix up dirty log missing when promote pinned_page_dirty_scope.
patch 5-7: Drop superfluous parameter "pgsize" of some functions.

Wish they improves the robustness of vfio dirty log tracking.

Thanks,
Keqian

Keqian Zhu (7):
  vfio: iommu_type1: Clear added dirty bit when unwind pin
  vfio: iommu_type1: Initially set the pinned_page_dirty_scope
  vfio: iommu_type1: Make an explicit "promote" semantic
  vfio: iommu_type1: Fix missing dirty page when promote pinned_scope
  vfio: iommu_type1: Drop parameter "pgsize" of
    vfio_dma_bitmap_alloc_all
  vfio: iommu_type1: Drop parameter "pgsize" of vfio_iova_dirty_bitmap.
  vfio: iommu_type1: Drop parameter "pgsize" of update_user_bitmap

 drivers/vfio/vfio_iommu_type1.c | 108 +++++++++++++++++++-------------
 1 file changed, 65 insertions(+), 43 deletions(-)