1 specific_ss.add(when: 'CONFIG_HAX', if_false: files('hax-stub.c'))
2 specific_ss.add(when: 'CONFIG_XEN', if_false: files('xen-stub.c'))
3 specific_ss.add(when: 'CONFIG_KVM', if_false: files('kvm-stub.c'))
4 specific_ss.add(when: 'CONFIG_TCG', if_false: files('tcg-stub.c'))
