On Tuesday, January 18, 2022 12:51 AM, Janis Schoetterl-Glausch wrote: > > + /* > > + * Permission needs to be requested before KVM_SET_CPUID2. > > + */ > > + vm_xsave_req_perm(); > > + > > Since > > 79e06c4c4950 (Merge tag 'for-linus' of > git://git.kernel.org/pub/scm/virt/kvm/kvm) > > on s390x I'm getting: > > /usr/bin/ld: tools/testing/selftests/kvm/libkvm.a(kvm_util.o): in function > `vm_create_with_vcpus': > tools/testing/selftests/kvm/lib/kvm_util.c:399: undefined reference to > `vm_xsave_req_perm' > collect2: error: ld returned 1 exit status > make: *** [../lib.mk:146: tools/testing/selftests/kvm/s390x/memop] Error 1 > > Looks like it only exists for x86. > v2 had a comment about unconditional enablement: > https://lore.kernel.org/kvm/e20f590b-b9d9-237d-3b9c-77dd82a24b40@redh > at.com/ > > Thanks for having a look. > OK, we made it conditionally enabled at runtime, but this one requires conditionally compiled. I'll get you a patch to test soon. Thanks, Wei
