Re: [PATCH 1/2] iommu/vt-d: Remove change_pte notifier

2019-01-30 Thread Joerg Roedel
On Wed, Jan 30, 2019 at 01:57:57PM +0800, Peter Xu wrote: > The change_pte() interface is tailored for PFN updates, while the > other notifier invalidate_range() should be enough for Intel IOMMU > cache flushing. Actually we've done similar thing for AMD IOMMU > already in 8301da53fbc1 ("iommu/amd

[PATCH 1/2] iommu/vt-d: Remove change_pte notifier

2019-01-29 Thread Peter Xu
The change_pte() interface is tailored for PFN updates, while the other notifier invalidate_range() should be enough for Intel IOMMU cache flushing. Actually we've done similar thing for AMD IOMMU already in 8301da53fbc1 ("iommu/amd: Remove change_pte mmu_notifier call-back", 2014-07-30) but the I