RE: [PATCH v3 2/6] iommu/vt-d: Allow SVA with device-specific IOPF

[Tian, Kevin]

> From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Sent: Friday, March 24, 2023 8:03 PM
> 
> Currently enabling SVA requires IOPF support from the IOMMU and device
> PCI PRI. However, some devices can handle IOPF by itself without ever
> sending PCI page requests nor advertising PRI capability.
> 
> Allow SVA support with IOPF handled either by IOMMU (PCI PRI) or device
> driver (device-specific IOPF). As long as IOPF could be handled, SVA
> should continue to work.
> 
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>