|author||Rusty Russell <email@example.com>||2015-02-11 15:15:10 +1030|
|committer||Rusty Russell <firstname.lastname@example.org>||2015-02-11 16:47:32 +1030|
lguest: suppress PS/2 keyboard polling.
While hacking on getting I/O out to the lguest launcher, I noticed that returning 0xFF for the PS/2 keyboard status made it spin for a while thinking there was a key pending. Fix this by returning 1 instead of 0xFF. Signed-off-by: Rusty Russell <email@example.com>
Diffstat (limited to 'tools')
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/lguest/lguest.c b/tools/lguest/lguest.c
index b2217657f62c..485fe13db12e 100644
@@ -1259,6 +1259,10 @@ static void emulate_insn(const u8 insn)
mask = 0xFFFFFFFF;
+ /* This is the PS/2 keyboard status; 1 means ready for output */
+ if (port == 0x64)
+ val = 1;
* If it was an "IN" instruction, they expect the result to be read
* into %eax, so we change %eax.