On Thu, 2023-10-19 at 11:11 +0200, Jan Beulich wrote: > I'm not convinced an arch can get away without such a header. > Certainly > RISC-V and PPC can't, with all their ISA extensions that already > exist > (part of which will want making use of, others may simply want > exposing > to guests). Yes, it looks like you are right. I forgot about a considerable amount of ISA.
By this patch series, I tried to move headers to asm-generic to build minimal Xen without introducing the stub cpu_nr_siblings(unsigned int cpu) for each new arch. But taking into account that likely this header will be re-introduced for an arch, there is probably no sense to have it in asm-generic. ~ Oleksii
