On 2021/5/27 19:18, Lu Baolu wrote: > Hi Shenming and Alex, > > On 5/27/21 7:03 PM, Shenming Lu wrote: >>> I haven't fully read all the references, but who imposes the fact that >>> there's only one fault handler per device? If type1 could register one >>> handler and the vfio-pci bus driver another for the other level, would >>> we need this path through vfio-core? >> If we could register more than one handler per device, things would become >> much more simple, and the path through vfio-core would not be needed. >> >> Hi Baolu, >> Is there any restriction for having more than one handler per device? >> > > Currently, each device could only have one fault handler. But one device > might consume multiple page tables. From this point of view, it's more > reasonable to have one handler per page table. Sounds good to me. I have pointed it out in the IOASID uAPI proposal. :-) Thanks, Shenming > > Best regards, > baolu > .
