Features/3270

The 3270 is the classic 'green-screen' console (see the wikipedia article).

Code

• Initial posting: [1]
• Git: [2]

Implementation

The 3270 data stream is not implemented within QEMU; the code only implements tn3270 (a telnet extension; see RFCs 854 and 1576) and leaves the heavy lifting to an emulator (currently only tested with x3270).

Setup

This example setup is done with a Linux guest running in an s390x-ccw-virtio machine and the x3270 emulator running on a local Linux machine.

Prereqs

Guest

• Make sure that 3270 support is enabled in the kernel. You'll need CONFIG_TN3270 and at least one of CONFIG_TN3270_TTY (for additional ttys) or CONFIG_TN3270_CONSOLE (for a 3270 console).

Host

• You need to apply the patches or use the github branch (until the code has been integrated).

Other

• You need to have a copy of the x3270 emulator (should be packaged for most Linux distributions). Other 3270 emulators have not been tested.