Jakub Klama wrote:
The purpose of virtio-console is to create arbitrary bidirectional, 
host-to-guest communication
channels that bypass guest's network stack (don't require working networking in 
the guest).

thanks. i had no idea that the existing console support required a networking stack; it works for the loader and i can watch the kernel load and initialize, so i always assumed it bypassed "networking".

But even for using it as the system console, it's a bit better than emulated 
serial port, because
the protocol supports passing console resize events from host to guest.

nmdm could theoretically (as pty and pts both do) support TIOCGWINSZ and SIGWINCH, though? or perhaps bhyve's virtio_console device could offer pts(4) support?

is the protocol spoken over the virtio_console socket documented online? i'd like to add support to rtty. currently i've been running the "resize" command at the guest shell, which feels very primitive.

--
P Vixie
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