Some time has passed, some interesting cases have fixed and tested. Last case was about hung system (with serial port enabled from firmware), where console mirroring was (console=text,ttya) performing direct access of ioport and this patch did fix the problem.

toomas

On 17. Apr 2024, at 23:14, Toomas Soome <tsoome@me.com> wrote:

hi!
Please review: https://code.illumos.org/c/illumos-gate/+/3422

This is the re-work of serial port support for UEFI loader. Some background and concerns are described with issue. Testing is still going on:)

Thanks,
Toomas