Commit 48fd6b71 authored Feb 11, 2015 by Rusty Russell

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 <rusty@rustcorp.com.au>

parent c565650b

tools/lguest/lguest.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1259,6 +1259,10 @@ static void emulate_insn(const u8 insn[])
		else
		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.