Re: [PATCH 2/5] libmachdev: Add resume for bootstrap server

[Samuel Thibault]

Hello,

Thanks for using send-email, that makes the review way easier.

Samuel

Damien Zammit, le ven. 24 juil. 2020 23:20:36 +1000, a ecrit:
> @@ -94,11 +95,8 @@ ds_device_open (mach_port_t open_port, mach_port_t 
> reply_port,
>                  char *name, device_t *devp, mach_msg_type_name_t *devicePoly)
>  {
>    int i;
> -  io_return_t err;
> -
> -  /* Open must be called on the master device port.  */
> -  if (!machdev_is_master_device (open_port))
> -    return D_INVALID_OPERATION;
> +  mach_port_t dev_master;
> +  io_return_t err = D_NO_SUCH_DEVICE;

What about my comment on keeping the machdev_is_master_device call? I
see on IRC that you had troubles with this, but I believe we want to
fix it, not drop it.

> +/* Override the privileged ports for booting the system */
> +kern_return_t
> +trivfs_S_fsys_getpriv (struct diskfs_control *init_bootstrap_port,
> +                       mach_port_t reply, mach_msg_type_name_t reply_type,
> +                       mach_port_t *host_priv, mach_msg_type_name_t *hp_type,
> +                       mach_port_t *dev_master, mach_msg_type_name_t 
> *dm_type,
> +                       mach_port_t *fstask, mach_msg_type_name_t *task_type)
> +{
> +  error_t err;
> +  mach_port_t right;
> +  struct port_info *server_info;
> +
> +  err = ports_create_port (trivfs_protid_class, port_bucket,
> +                           sizeof (struct port_info), &server_info);

This returns a port in the trivfs_protid_class, so that should be
getting accepted by machdev_is_master_device.

Samuel