On Thu, May 09, 2024, Yang Weijiang wrote: > @@ -5859,6 +5884,11 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu, > } > } > > +static int kvm_translate_synthetic_msr(u32 *index) > +{ > + return 0; This needs to be -EINVAL. > +} > + > long kvm_arch_vcpu_ioctl(struct file *filp, > unsigned int ioctl, unsigned long arg) > {