xen-changelog

[Top] [All Lists]

[Xen-changelog] [xen-unstable] rombios: don't busy-wait for keystrokes

from [Xen patchbot-unstable]

[Permanent Link][Original]

To:	xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-changelog] [xen-unstable] rombios: don't busy-wait for keystrokes
From:	Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Sun, 22 Nov 2009 23:35:25 -0800
Delivery-date:	Sun, 22 Nov 2009 23:36:07 -0800
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
List-help:	<mailto:xen-changelog-request@lists.xensource.com?subject=help>
List-id:	BK change log <xen-changelog.lists.xensource.com>
List-post:	<mailto:xen-changelog@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=unsubscribe>
Reply-to:	xen-devel@xxxxxxxxxxxxxxxxxxx
Sender:	xen-changelog-bounces@xxxxxxxxxxxxxxxxxxx

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1258958849 0
# Node ID c11e2c3df5471514eaeb5dc2ba601f3f368627ac
# Parent  27d816a4bfb2481f18ed4edde451288522bb937d
rombios: don't busy-wait for keystrokes

Spinning waiting for the keyboard is a bit rude on a virtual
machine. Wait for an interrupt instead.

Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
---
 tools/firmware/rombios/rombios.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r 27d816a4bfb2 -r c11e2c3df547 tools/firmware/rombios/rombios.c
--- a/tools/firmware/rombios/rombios.c  Mon Nov 23 06:46:58 2009 +0000
+++ b/tools/firmware/rombios/rombios.c  Mon Nov 23 06:47:29 2009 +0000
@@ -11258,7 +11258,7 @@ int16_wait_for_key:
   cmp  bx, 0x001c
   jne  int16_key_found
   sti
-  nop
+  hlt
 #if 0
                            /* no key yet, call int 15h, function AX=9002 */
   0x50,                    /* push AX */

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-changelog] [xen-unstable] rombios: don't busy-wait for keystrokes, Xen patchbot-unstable <=

Previous by Date:	[Xen-changelog] [xen-unstable] tmem: printk too chatty when tmem enabled, Xen patchbot-unstable
Next by Date:	[Xen-changelog] [xen-unstable] tmem: fix double-free bug, Xen patchbot-unstable
Previous by Thread:	[Xen-changelog] [xen-unstable] tmem: printk too chatty when tmem enabled, Xen patchbot-unstable
Next by Thread:	[Xen-changelog] [xen-unstable] tmem: fix double-free bug, Xen patchbot-unstable
Indexes:	[Date] [Thread] [Top] [All Lists]