Messages in this thread | | | Date | Tue, 7 Mar 2023 09:41:42 +0800 | Subject | Re: [PATCH v2 08/16] iommu: define and export iommu_access_remote_vm() | From | Baolu Lu <> |
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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
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