__kvm_at
fail = __kvm_at(OP_AT_S1E1R, vaddr);
fail = __kvm_at(OP_AT_S1E1W, vaddr);
fail = __kvm_at(OP_AT_S1E0R, vaddr);
fail = __kvm_at(OP_AT_S1E0W, vaddr);
fail = __kvm_at(OP_AT_S1E1A, vaddr);
fail = __kvm_at(OP_AT_S1E1R, vaddr);
fail = __kvm_at(OP_AT_S1E1W, vaddr);
fail = __kvm_at(OP_AT_S1E1A, vaddr);
fail = __kvm_at(OP_AT_S1E1RP, vaddr);
fail = __kvm_at(OP_AT_S1E1WP, vaddr);
ret = system_supports_poe() ? __kvm_at(OP_AT_S1E1A, far) :
__kvm_at(OP_AT_S1E1R, far);