Hi, Paolo, > From: Paolo Bonzini <pbonzini@xxxxxxxxxx> > Sent: Saturday, January 8, 2022 2:55 AM > > +/* > + * fpu_enable_guest_xfd_features - Check xfeatures against guest perm > and enable > + * @guest_fpu: Pointer to the guest FPU container > + * @xfeatures: Features requested by guest CPUID > + * > + * Enable all dynamic xfeatures according to guest perm and requested > CPUID. > + * > + * Return: 0 on success, error code otherwise > + */ Just a NIT. This function itself has nothing to do with guest CPUID which is a caller-side policy. It simply enable xfeatures per request. Thanks Kevin