>>> On 11.07.16 at 16:57, <david.vra...@citrix.com> wrote:
> @@ -553,6 +570,27 @@ static long evtchn_ioctl(struct file *file,
> break;
> }
>
> + case IOCTL_EVTCHN_RESTRICT_DOMID: {
> + struct ioctl_evtchn_restrict_domid ierd;
> +
> + rc = -EACCES;
> + if (u->restrict_domid != UNRESTRICTED_DOMID)
> + break;
> +
> + rc = -EFAULT;
> + if (copy_from_user(&ierd, uarg, sizeof(ierd)))
> + break;
> +
> + rc = -EINVAL;
> + if (ierd.domid == 0 || ierd.domid >= DOMID_FIRST_RESERVED)
> + break;
Any reason you special case Dom0 here, but not the conceptually
more general hardware and/or control domain?
Jan
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