[v4,0/3] Some fixes on intel_iommu

Message

Duan, Zhenzhong June 15, 2023, 3:26 a.m. UTC

Hi All,

This patchset fixes a potential issue in VFIO dirty page sync and
two trivial fixes for robust purpose.

Tested net card passthrough, ping/ssh pass
Tested DSA vdev passthrough, start dmatest then do live migration, pass.
Checked the LM performance before and after patch, no explicit difference.
(DSA vdev requires customed kernel and qemu)

v4:
Add Reviewed-by
Drop PATCH1 and PATCH5

v3:
updated PATCH2 to fix VFIO dirty sync in Peter suggested way.
split PATCH4 in v2 to PATCH4 and PATCH5 as they target different issue.
dropped PATCH3 in v2.
add Suggested-by.

Thanks

Zhenzhong Duan (3):
  intel_iommu: Fix a potential issue in VFIO dirty page sync
  intel_iommu: Fix flag check in replay
  intel_iommu: Fix address space unmap

 hw/i386/intel_iommu.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)