[kvm-unit-tests,0/2] s390x: Improve console handling

Message

Janosch Frank July 7, 2023, 2:54 p.m. UTC

Console IO is and has been in a state of "works for me". I don't think
that will change soon since there's no need for a proper console
driver when all we want is the ability to print or read a line at a
time.

However since input is only supported on the ASCII console I was
forced to use it on the HMC. The HMC generally does not add a \r on a
\n so each line doesn't necessarily start at column 0. It's time to
finally fix that.

Also, since there are environments that only provide the line-mode
console it's time to add line-mode input to properly support them.

rfc -> v1:
	- Switched to \r\n from \n\r
	- Removed console clear
	- Added truncation logic to maintain 2k limit

Janosch Frank (2):
  lib: s390x: sclp: Add carriage return to line feed
  lib: s390x: sclp: Add line mode input handling

 lib/s390x/sclp-console.c | 193 +++++++++++++++++++++++++++++++++++----
 lib/s390x/sclp.h         |  26 +++++-
 2 files changed, 198 insertions(+), 21 deletions(-)