Hi Dan,
uart2: <16550 or compatible> port 0x3f8-0x3ff irq 4 at device 31.0 on pci0
uart2: console (9600,n,8,1)
>
which maps to the bhyve argument given: '-S 31,uart,stdio'
Yes - the '-S' parameter instructs the PCI device to use a
compatibility address so the console code can still access it. You could
use any slot number that doesn't conflict (e.g. -S 11,...)
FreeBSD reserves unit number 0 and 1 for ISA ports. When we have the
PCI-ISA bridge code in place, it will show up as uart0, requiring ttyu0
to be edited in /etc/ttys.
It would be kind of cool to bind a guest's serial port to a named pipe
on the host system
You bet. The intent was always to allow different back ends. The third
parameter is to describe this e.g. in the future, there could be
-s 10,uart,telnetd:4239 // telnet server on a given port
-s 12,uart,pty05 // pseudo terminal
-s 14,uart,exec:"socat UNIX-LISTEN:/tmp/.bhye" // exec an arbitrary
program and use it's stdin/stdout
On the TODO list :)
later,
Peter.
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