Skip site navigation (1)Skip section navigation (2) 
Date:      Fri, 14 Feb 2025 16:55:23 -0500
From:      Petru Garstea <peter.garshtja@ambient-md.com>
To:        Michael Gmelin <grembo@freebsd.org>
Cc:        freebsd-virtualization@freebsd.org
Subject:   Re: bhyve vm and virtio-console
Message-ID:  <5e1c08ca-4175-4a85-bc07-3ca73406454a@ambient-md.com>
In-Reply-To: <20250214205752.6a12dbb4.grembo@freebsd.org>
References:  <2a0e1b92-4d63-4061-bc37-c5e72b8ef0ed@ambient-md.com> <20250214205752.6a12dbb4.grembo@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help 
This is a multi-part message in MIME format.
--------------x6vcrPSs0YHO7KlxFzDKehy3
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

I tried with the following command, and got the same result.

*/usr/sbin/bhyve -H -P -A -c 1 -m 1500M \
-s 0,hostbridge \
-s 6,virtio-console,0=/tmp/vtcon.0 \
-s 31,lpc \
-l bootrom,/tmp/BHYVE_UEFI.fd \
-s 1,virtio-blk,/tmp/fbsd.img \
-s 2,virtio-net,tap0 \
tmp*


I also able to connect but the bidirectional connection is not happening

*socat - UNIX-CONNECT:/tmp/vtcon.0
ls
*
PS: if I use null modem emulation instead virtio-console, then 
connecting with cu is not an issue.

any ideas ?

Thanks

On 2/14/25 14:57, Michael Gmelin wrote:

>
> On Fri, 14 Feb 2025 14:21:07 -0500
> Petru Garstea<peter.garshtja@ambient-md.com> wrote:
>
>> Hi,
>> I am trying to configure bhyve vm with support of virtio-console, the
>> following option is added to bhyve command line
>>
>> *-s 3,virtio-console,port1=/test/console.sock
>>
>> *However when trying to connect to socket with socat trere are no
>> input/ouptut is observed.
>>
>> Has virtio-console ever worked ?
>>
> Yes it works, I just tried it using sysutils/vm-bhyve (just add
> virt_console0="Yes" to the configuration file).
>
> Based on the logs, these device settings are used by it:
>
>      bhyve devices:
>        -s 0,hostbridge \
>        -s 31,lpc \
>        -s 4:0,virtio-blk,/dev/zvol/zroot/vms/freebsd14-test/disk0 \
>        -s 5:0,virtio-net,tap0,mac=58:9c:fc:aa:aa:aa \
>        -s 6:0,virtio-console,0=/vms/freebsd14-test/vtcon.0
>
> I could connect to /vms/freebsd14-test/vtcon.0 using socat:
>
>      socat - UNIX-CONNECT:/vms/freebsd14-test/vtcon.0
>
> Inside the vm it's /dev/vtcon/0.
>
> -m
>
--------------x6vcrPSs0YHO7KlxFzDKehy3
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 7bit

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body>
    <p>I tried with the following command, and got the same result.<br>
    </p>
    <p><b>/usr/sbin/bhyve -H -P -A -c 1 -m 1500M \<br>
        -s 0,hostbridge \ <br>
        -s 6,virtio-console,0=/tmp/vtcon.0 \<br>
        -s 31,lpc \<br>
        -l bootrom,/tmp/BHYVE_UEFI.fd \<br>
        -s 1,virtio-blk,/tmp/fbsd.img \<br>
        -s 2,virtio-net,tap0 \<br>
        tmp</b></p>
    <p><br>
      I also able to connect but the bidirectional connection is not
      happening <br>
    </p>
    <p><b>socat - UNIX-CONNECT:/tmp/vtcon.0<br>
        ls<br>
      </b><br>
      PS: if I use null modem emulation instead virtio-console, then
      connecting with cu is not an issue.<br>
      <br>
      any ideas ?<br>
      <br>
      Thanks<br>
      <br>
      On 2/14/25 14:57, Michael Gmelin wrote:</p>
    <blockquote type="cite"
      cite="mid:20250214205752.6a12dbb4.grembo@freebsd.org">
      <pre wrap="" class="moz-quote-pre">

On Fri, 14 Feb 2025 14:21:07 -0500
Petru Garstea <a class="moz-txt-link-rfc2396E" href="mailto:peter.garshtja@ambient-md.com">&lt;peter.garshtja@ambient-md.com&gt;</a> wrote:

</pre>
      <blockquote type="cite">
        <pre wrap="" class="moz-quote-pre">Hi,
I am trying to configure bhyve vm with support of virtio-console, the 
following option is added to bhyve command line

*-s 3,virtio-console,port1=/test/console.sock

*However when trying to connect to socket with socat trere are no 
input/ouptut is observed.

Has virtio-console ever worked ?

</pre>
      </blockquote>
      <pre wrap="" class="moz-quote-pre">
Yes it works, I just tried it using sysutils/vm-bhyve (just add
virt_console0="Yes" to the configuration file).

Based on the logs, these device settings are used by it:

    bhyve devices:
      -s 0,hostbridge \
      -s 31,lpc \
      -s 4:0,virtio-blk,/dev/zvol/zroot/vms/freebsd14-test/disk0 \
      -s 5:0,virtio-net,tap0,mac=58:9c:fc:aa:aa:aa \
      -s 6:0,virtio-console,0=/vms/freebsd14-test/vtcon.0

I could connect to /vms/freebsd14-test/vtcon.0 using socat:

    socat - UNIX-CONNECT:/vms/freebsd14-test/vtcon.0

Inside the vm it's /dev/vtcon/0.

-m

</pre>
    </blockquote>
  </body>
</html>

--------------x6vcrPSs0YHO7KlxFzDKehy3--

Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5e1c08ca-4175-4a85-bc07-3ca73406454a>