[Qemu-devel] Serial port emulation

[Qemu-devel] Serial port emulation

[Stefan Weil]

Hi,

are there any plans to extend the serial port emulation in QEMU?
Currently, it emulates a 16450 hardware, but most modern boards
are 16550A compatible. The 16550A hardware gives better performance
for serial applications (e.g. serial protocols), and I expect
that it might do this in an emulation environment, too.

I found a port for 16550A emulation in an earlier contribution
(http://lists.gnu.org/archive/html/qemu-devel/2006-02/msg00004.html),
but it obviously did not get much attention...

When I tried this 16550A patch, it worked but surprisingly slowed
down the serial output.

Regards
Stefan

Re: [Qemu-devel] Serial port emulation - console input buggy with SDL

[Stefan Weil]

Hi,

when QEMU is running with SDL, serial console input does not
work for keys which expand to more than one character:
important keys like cursor up / down / left / right
only give ESC, not ESC [ A and so on.

So features like serial console line editing are unavailable
with SDL :-(

Serial port input works in QEMU with -nographic.

Regards
Stefan