xen-changelog

[Top] [All Lists]

[Xen-changelog] [xen-unstable] x86, hpet: check hpet existence

from [Xen patchbot-unstable]

[Permanent Link][Original]

To:	xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-changelog] [xen-unstable] x86, hpet: check hpet existence
From:	Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Mon, 01 Dec 2008 03:50:56 -0800
Delivery-date:	Mon, 01 Dec 2008 03:54:20 -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 1227785092 0
# Node ID 840b761e07c1f8b6146584df320ddbd6bce07fae
# Parent  b1a38832be05156ac993dae1fb53b85b0aa26a1f
x86, hpet: check hpet existence

Add check on hpet existence which is removed accidentally
in previous changeset (18790). Or else BAD PERIOD error can be seen.

Signed-off-by: Kevin Tian <kevin.tian@xxxxxxxxx>
---
 xen/arch/x86/hpet.c |    3 +++
 1 files changed, 3 insertions(+)

diff -r b1a38832be05 -r 840b761e07c1 xen/arch/x86/hpet.c
--- a/xen/arch/x86/hpet.c       Thu Nov 27 11:22:38 2008 +0000
+++ b/xen/arch/x86/hpet.c       Thu Nov 27 11:24:52 2008 +0000
@@ -273,6 +273,9 @@ u64 hpet_setup(void)
         return hpet_rate;
     system_reset_latch = system_reset_counter;
 
+    if ( hpet_address == 0 )
+        return 0;
+
     set_fixmap_nocache(FIX_HPET_BASE, hpet_address);
 
     hpet_id = hpet_read32(HPET_ID);

_______________________________________________
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] x86, hpet: check hpet existence, Xen patchbot-unstable <=

Previous by Date:	[Xen-changelog] [xen-unstable] [IA64] use pte_pfn() where possible, Xen patchbot-unstable
Next by Date:	[Xen-changelog] [xen-unstable] VT-d code cleanup, Xen patchbot-unstable
Previous by Thread:	[Xen-changelog] [xen-unstable] [IA64] use pte_pfn() where possible, Xen patchbot-unstable
Next by Thread:	[Xen-changelog] [xen-unstable] VT-d code cleanup, Xen patchbot-unstable
Indexes:	[Date] [Thread] [Top] [All Lists]