On 15/10/2019 06:26, Yong Wu wrote:
On Mon, 2019-10-14 at 15:21 +0100, Robin Murphy wrote:
On 14/10/2019 07:38, Yong Wu wrote:
Use the iommu_gather mechanism to achieve the tlb range flush.
Gather the iova range in the "tlb_add_page", then flush the merged iova
range in iotlb_sync.
Note: If io
On Mon, 2019-10-14 at 15:21 +0100, Robin Murphy wrote:
> On 14/10/2019 07:38, Yong Wu wrote:
> > Use the iommu_gather mechanism to achieve the tlb range flush.
> > Gather the iova range in the "tlb_add_page", then flush the merged iova
> > range in iotlb_sync.
> >
> > Note: If iotlb_sync comes fro
On 14/10/2019 07:38, Yong Wu wrote:
Use the iommu_gather mechanism to achieve the tlb range flush.
Gather the iova range in the "tlb_add_page", then flush the merged iova
range in iotlb_sync.
Note: If iotlb_sync comes from iommu_iotlb_gather_add_page, we have to
avoid retry the lock since the sp
Use the iommu_gather mechanism to achieve the tlb range flush.
Gather the iova range in the "tlb_add_page", then flush the merged iova
range in iotlb_sync.
Note: If iotlb_sync comes from iommu_iotlb_gather_add_page, we have to
avoid retry the lock since the spinlock have already been acquired.
Su
