[Bug 213835] bhyve patch: sent ps/2 scancodes for NumLock, ScrollLock and numerical keypad keys.

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213835

            Bug ID: 213835
           Summary: bhyve patch: sent ps/2 scancodes for NumLock,
                    ScrollLock and numerical keypad keys.
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Keywords: patch
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: ivan.zhmudo at gmail.com
          Keywords: patch

Created attachment 176222
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=176222&action=edit
The patch

Hello. I've noticed, that bhyve (at least when it works in conjunction with VNC
client) does not understand *lock and keypad keys and prints debug messages
like "Unhandled ps2 keyboard keysym". Suggesting a patch which seems to fix the
problem.

Also, can you please explain what uint32_t keysym codes are? The first 127 of
them seem to be ASCII codes and translation table contain ASCII->PS/2 set 2
scancode mappings. But why TAB,ESC and some other symbols are coded with
leading 0xff? For example, TAB is 0xff09. How keysyms are generated for *lock
and Keypad keys?

Nevertheless, I wrote the patch using the mentioned debug output.

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