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Date:      Wed, 04 Dec 2013 12:00:07 -0800
From:      Peter Grehan <grehan@freebsd.org>
To:        Michael Dexter <editor@callfortesting.org>
Cc:        freebsd-virtualization@freebsd.org
Subject:   Re: Upcoming FreeBSD 10.x + bhyve ...
Message-ID:  <529F89C7.6070909@freebsd.org>
In-Reply-To: <529F8656.7000408@callfortesting.org>
References:  <56DEE328-7C96-4AC9-BF87-2C41D4C7949F@hub.org> <529D210C.9020801@freebsd.org> <70B115D9-436C-45EC-8F2E-CEBB2A48A9A5@hub.org> <529F8656.7000408@callfortesting.org>

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Hi Michael,

> In short:
>
> -S 31,uart,stdio
>
> Becomes:
>
> -S 31,uart,/dev/nmdm0A

  This will continue to work, though the preferred way of setting up a 
console port is to use the PCI-ISA (aka LPC) bridge

  -s N,lpc

  (N can be any slot number on bus 0, usually 1..31)

  There are 2 serial ports behind the LPC bridge, com1 and com2. These 
can have backends assigned to them in the same way as PCI devices, but 
use the "-l" option for configuration since they are 'lpc' devices e.g.

  -l com1,stdio

  -l com2,/dev/nmdm9B

  The advantage of using the LPC serial ports is that they will show up 
on the expected tty devices - com1 will be /dev/ttyu0 on FreeBSD as 
opposed to /dev/ttyu2 for the uart PCI device.

  So: "-S 31,uart/dev/nmdm0A" becomes "-s 31,lpc -l com1,nmdm0A"

  ... and change the guest's /etc/ttys file to set up a getty on ttyu0

later,

Peter.



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