diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/kvm/vcpu.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c index 17d5b3f8c2ee..982a3f5e7130 100644 --- a/arch/riscv/kvm/vcpu.c +++ b/arch/riscv/kvm/vcpu.c @@ -296,12 +296,15 @@ static int kvm_riscv_vcpu_set_reg_config(struct kvm_vcpu *vcpu, if (copy_from_user(®_val, uaddr, KVM_REG_SIZE(reg->id))) return -EFAULT; - /* This ONE REG interface is only defined for single letter extensions */ - if (fls(reg_val) >= RISCV_ISA_EXT_BASE) - return -EINVAL; - switch (reg_num) { case KVM_REG_RISCV_CONFIG_REG(isa): + /* + * This ONE REG interface is only defined for + * single letter extensions. + */ + if (fls(reg_val) >= RISCV_ISA_EXT_BASE) + return -EINVAL; + if (!vcpu->arch.ran_atleast_once) { /* Ignore the enable/disable request for certain extensions */ for (i = 0; i < RISCV_ISA_EXT_BASE; i++) { |