On 3/7/23 12:31 AM, Fenghua Yu wrote:
Define and export iommu_access_remote_vm() to allow IOMMU related drivers to access user address space by PASID. The IDXD driver would like to use it to write the user's completion record that the hardware device is not able to write to due to user page fault.
I don't quite follow here. Isn't I/O page fault already supported? Best regards, baolu
