Re: [RFC PATCH 0/6] selftests/vfio: Add sPAPR TCE v2 coverage

On Thu, Jul 9, 2026 at 1:49 AM Narayana Murty N [off-list ref] wrote:

quoted

quoted

Feedback is requested from the VFIO and PowerPC communities on:
1. whether the sPAPR TCE v2 helpers should remain in the common VFIO
selftest library or move into a sPAPR-specific test helper?

Responded in the patch. Let's move to their own file.

Will do. v2 will have:

   lib/iommu_spapr.c         — all sPAPR logic, compiled only on powerpc
   lib/iommu_spapr_stub.c    — empty stubs returning -EOPNOTSUPP,
                               compiled on all other architectures
   lib/include/libvfio/iommu_spapr.h — declarations

Just one small thing here: You can put all the stubs in iommu_spapr.h
as static inlines, then you don't need the extra C file. e.g.

#ifdef __powerpc__

... prototypes ...

#else

... static inline stubs ...

#endif