CVS commit: src/sys/arch/amd64/conf

["Greg Troxel" <gdt%netbsd.org@localhost>]

Module Name:    src
Committed By:   gdt
Date:           Tue Mar  2 18:10:31 UTC 2021

Modified Files:
        src/sys/arch/amd64/conf: XEN3_DOM0

Log Message:
XEN3_DOM0: Fix pckbc console attachment logic

Copy PCKBD_CNATTACH_MAY_FAIL lines from GENERIC to XEN3_DOM0.

GENERIC defines PCKBD_CNATTACH_MAY_FAIL, which means that an attempt
to activate console input on pckbc will fail if there is no keyboard
present.  This is a problem on semi-modern machines that have pckbc
silicon but not ports, and thus almost always have a USB keyboard
also.  What I suspect are bugs in console attachment logic lead to
attempting to attach a ukbd while there already is a console keyboard,
and with DIAGNOSTIC this is (properly) fatal, so XEN3_DOM0 blows up
with a USB keyboard in current, and probably not in 9.

Live tested on a machine that previously paniced on boot.


To generate a diff of this commit:
cvs rdiff -u -r1.188 -r1.189 src/sys/arch/amd64/conf/XEN3_DOM0

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.