On 3/24/23 8:02 PM, Lu Baolu wrote:
The iommu subsystem requires IOMMU_DEV_FEAT_IOPF must be enabled before and disabled after IOMMU_DEV_FEAT_SVA, if device's I/O page faults rely on the IOMMU. Add explicit IOMMU_DEV_FEAT_IOPF enabling/disabling in this driver. At present, missing IOPF enabling/disabling doesn't cause any real issue, because the IOMMU driver places the IOPF enabling/disabling in the path of SVA feature handling. But this may change. Reviewed-by: Dave Jiang<dave.jiang@xxxxxxxxx> Reviewed-by: Fenghua Yu<fenghua.yu@xxxxxxxxx> Reviewed-by: Kevin Tian<kevin.tian@xxxxxxxxx> Signed-off-by: Lu Baolu<baolu.lu@xxxxxxxxxxxxxxx>
Hi Dave and Fenghua, The following iommu patches depends on this one. Can I route it to Linus through the iommu tree? Best regards, baolu
