Re: bhyve vm and virtio-console

From: Petru Garstea <peter.garshtja_at_ambient-md.com>
Date: Fri, 14 Feb 2025 21:55:23 UTC
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
>