[Qemu-devel] Connecting to serial console via Telnet - possible ?

[Qemu-devel] Connecting to serial console via Telnet - possible ?

[Armistead, Jason]

Hi

With SIMH, the VAX / PDP / nostalgic mini/mainframe emulator
(http://simh.trailing-edge.com/) the console port on the emulated system is
directed to a TCP/IP port, so that you can simply Telnet into it.  Once the
connection is established, then the SIMH emulator starts working.  This
suits SIMH nicely since many of its hosts want a VT100-ish console terminal
anyhow, which is nicely emulated by many Telnet clients, and it saves SIMH
having to do any keyboard conversion, host output decoding and screen
output, etc.

Is there a similar functionality in QEMU ?

I am on a Windows host system (Win2K to be precise) and want to start QEMU
with -nographic but it complains under Windows that it can't connect to
stdio, which is a kind of foreign concept to Windows at times !

Any ideas ?

Thanks

Jason

RE: [Qemu-devel] Connecting to serial console via Telnet - possible ?

[Wessel, Jason]

This was recently added to cvs.  The next release of QEMU will have it,
until then you would need to build it from cvs.

-serial telnet::4444,server

Cheers,
Jason. 

> -----Original Message-----
> From: 
> qemu-devel-bounces+jason.wessel=windriver.com@nongnu.org 
> [mailto:qemu-devel-bounces+jason.wessel=windriver.com@nongnu.o
> rg] On Behalf Of Armistead, Jason
> Sent: Monday, July 03, 2006 2:04 AM
> To: Qemu-Devel (E-mail)
> Subject: [Qemu-devel] Connecting to serial console via Telnet 
> - possible ?
> 
> Hi
> 
> With SIMH, the VAX / PDP / nostalgic mini/mainframe emulator
> (http://simh.trailing-edge.com/) the console port on the 
> emulated system is directed to a TCP/IP port, so that you can 
> simply Telnet into it.  Once the connection is established, 
> then the SIMH emulator starts working.  This suits SIMH 
> nicely since many of its hosts want a VT100-ish console 
> terminal anyhow, which is nicely emulated by many Telnet 
> clients, and it saves SIMH having to do any keyboard 
> conversion, host output decoding and screen output, etc.
> 
> Is there a similar functionality in QEMU ?
> 
> I am on a Windows host system (Win2K to be precise) and want 
> to start QEMU with -nographic but it complains under Windows 
> that it can't connect to stdio, which is a kind of foreign 
> concept to Windows at times !
> 
> Any ideas ?
> 
> Thanks
> 
> Jason
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
> 

Re: [Qemu-devel] Connecting to serial console via Telnet - possible ?

[John R. Hogerhuis]

On Mon, 2006-07-03 at 03:03 -0400, Armistead, Jason wrote:
> Hi
> 
> With SIMH, the VAX / PDP / nostalgic mini/mainframe emulator
> (http://simh.trailing-edge.com/) the console port on the emulated system is
> directed to a TCP/IP port, so that you can simply Telnet into it.  Once the
> connection is established, then the SIMH emulator starts working.  This
> suits SIMH nicely since many of its hosts want a VT100-ish console terminal
> anyhow, which is nicely emulated by many Telnet clients, and it saves SIMH
> having to do any keyboard conversion, host output decoding and screen
> output, etc.

Well QEMU can redirect the serial port to a character device. I guess if
you redirected it to a pty then you just use socat to bridge the pty to
a tcp connection, telnet or whatever.

-- John.