bhyve: allow specifiying tty by fd

Julian Elischer julian at
Thu Mar 6 18:44:14 UTC 2014

On 3/6/14, 10:33 AM, Peter Grehan wrote:
and allows fd to be a socket! :-)
> Hi Roman,
>> Currently bhyve(8) allows to specify either stdio or device path as a
>> TTY device. However, it could be useful to specify a TTY device by 
>> file
>> descriptor, e.g. when bhyve is being executed in an automated way by
>> other application, so a result of openpty(3) could be passed to it.
>> Attached a poc patch for that. It allows to specify fd this way:
>> bhyve <snip>  -s 31,lpc -l com1,fd=19 vm0
>  Yes, useful idea, and will become more relevant in the capsicum 
> world of passing fd's to a sandboxed bhyve.
>  Thanks: I'll get this submitted.
> later,
> Peter.
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