diff options
| -rw-r--r-- | arch/riscv/kvm/vcpu_onereg.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 1ffd8ac3800a..e06256dd8d24 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -216,9 +216,17 @@ static int kvm_riscv_vcpu_set_reg_config(struct kvm_vcpu *vcpu, } break; case KVM_REG_RISCV_CONFIG_REG(zicbom_block_size): - return -EOPNOTSUPP; + if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOM)) + return -ENOENT; + if (reg_val != riscv_cbom_block_size) + return -EINVAL; + break; case KVM_REG_RISCV_CONFIG_REG(zicboz_block_size): - return -EOPNOTSUPP; + if (!riscv_isa_extension_available(vcpu->arch.isa, ZICBOZ)) + return -ENOENT; + if (reg_val != riscv_cboz_block_size) + return -EINVAL; + break; case KVM_REG_RISCV_CONFIG_REG(mvendorid): if (!vcpu->arch.ran_atleast_once) vcpu->arch.mvendorid = reg_val; |