diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c index a8fa431f0109..93c82a834774 100644 --- a/arch/arm64/kvm/hyp/nvhe/ffa.c +++ b/arch/arm64/kvm/hyp/nvhe/ffa.c @@ -1367,7 +1367,10 @@ static void do_ffa_version(struct arm_smccc_res *res, hyp_spin_lock(&version_lock); if (has_version_negotiated) { - res->a0 = hyp_ffa_version; + if (FFA_MINOR_VERSION(ffa_req_version) < FFA_MINOR_VERSION(hyp_ffa_version)) + res->a0 = FFA_RET_NOT_SUPPORTED; + else + res->a0 = hyp_ffa_version; goto unlock; }