On Wed Sep 24, 2025 at 3:22 PM UTC, Patrick Roy wrote: > diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h > index 1d0585616aa3..73a15cade54a 100644 > --- a/include/linux/kvm_host.h > +++ b/include/linux/kvm_host.h > @@ -731,6 +731,12 @@ static inline bool kvm_arch_has_private_mem(struct kvm > *kvm) > bool kvm_arch_supports_gmem_mmap(struct kvm *kvm); > #endif > > +#ifdef CONFIG_KVM_GUEST_MEMFD > +#ifndef kvm_arch_gmem_supports_no_direct_map > +#define kvm_arch_gmem_supports_no_direct_map can_set_direct_map > +#endif > +#endif /* CONFIG_KVM_GUEST_MEMFD */
The test robot seems happy so I think I'm probably mistaken here, but AFAICS can_set_direct_map only exists when ARCH_HAS_SET_DIRECT_MAP, which powerpc doesn't set. If this is indeed an issue I think it can be fixed by just defining can_set_direct_map() to false when !ARCH_HAS_SET_DIRECT_MAP.
