From 20025504271220ab3bf041955a3cd40c6057e58e Mon Sep 17 00:00:00 2001 From: Andrew Cooper Date: Tue, 6 Aug 2013 14:48:36 +0100 Subject: rombios/keyboard: Don't needlessly poll the status register Repeated polling of the status register is not going to change its value, so don't needlessly take 8192 traps to Qemu when 1 will do. Signed-off-by: Andrew Cooper Acked-by: Keir Fraser --- tools/firmware/rombios/rombios.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'tools/firmware') diff --git a/tools/firmware/rombios/rombios.c b/tools/firmware/rombios/rombios.c index 80980b67f8..e364759b3b 100644 --- a/tools/firmware/rombios/rombios.c +++ b/tools/firmware/rombios/rombios.c @@ -1805,12 +1805,12 @@ keyboard_init() while ( (inb(0x64) & 0x02) && (--max>0)) outb(0x80, 0x00); /* flush incoming keys */ - max=0x2000; + max=2; while (--max > 0) { outb(0x80, 0x00); if (inb(0x64) & 0x01) { inb(0x60); - max = 0x2000; + max = 2; } } -- cgit v1.2.3