xen-devel

[Top] [All Lists]

[Xen-devel] RE: [PATCH] Fix lapic timer stop issue in deep C state

from [Yu, Ke]

[Permanent Link][Original]

To:	"Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, "Wei, Gang" <gang.wei@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	[Xen-devel] RE: [PATCH] Fix lapic timer stop issue in deep C state
From:	"Yu, Ke" <ke.yu@xxxxxxxxx>
Date:	Thu, 22 May 2008 10:37:15 +0800
Cc:	"Tian, Kevin" <kevin.tian@xxxxxxxxx>
Delivery-date:	Wed, 21 May 2008 19:37:54 -0700
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxx
In-reply-to:	<C459B011.210B2%keir.fraser@xxxxxxxxxxxxx>
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References:	<094BCE01AFBE9646AF220B0B3F367AAB0315046F@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> <C459B011.210B2%keir.fraser@xxxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index:	Aci6jUBXmebrt9PbTXqMLWQa6q7WjQAm4L7yACKaMoA=
Thread-topic:	[PATCH] Fix lapic timer stop issue in deep C state

Thanks for the restructuring, Yes, FSB delivery mode (MSI) support is in
our next plan.

HPET in ICH7/8/9 has only IOAPIC mode. ICH10 will add  FSB mode. 

Best Regards
Ke

Keir Fraser wrote:
> Applied, after a lot of restructuring.
> 
> Also, would it be cleaner to set up the HPET to do direct FSB writes
> to a local APIC, rather than hijacking PIT ch0? There are some corner
> cases where we leave PIT ch0 enabled after boot. Do most HPET
> implementations support direct FSB interrupt delivery?
> 
>  -- Keir
> 
> On 20/5/08 16:22, "Wei, Gang" <gang.wei@xxxxxxxxx> wrote:
> 
>> Local APIC timer may stop at deep C state (C3/C4...) entry/exit. this
>> patch add the logic that use platform timer (HPET) to reenable local
>> APIC timer at C state entry/exit.
>> 
>> Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>
>> Signed-off-by: Yu Ke <ke.yu@xxxxxxxxx>


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

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-devel] [PATCH] Fix lapic timer stop issue in deep C state, Wei, Gang RE: [Xen-devel] [PATCH] Fix lapic timer stop issue in deep C state, Wei, Gang [Xen-devel] Re: [PATCH] Fix lapic timer stop issue in deep C state, Keir Fraser [Xen-devel] RE: [PATCH] Fix lapic timer stop issue in deep C state, Wei, Gang [Xen-devel] RE: [PATCH] Fix lapic timer stop issue in deep C state, Yu, Ke <=

Previous by Date:	Re: [Xen-devel] [PATCH] balloon: selfballooning and post memory info via xenbus,, Torben Viets
Next by Date:	[Xen-devel] gdbserver stub for xen, Mukesh Rathor
Previous by Thread:	[Xen-devel] RE: [PATCH] Fix lapic timer stop issue in deep C state, Wei, Gang
Next by Thread:	[Xen-devel] XenAPI: Allow you to mess with lvm partitions?, Nate Carlson
Indexes:	[Date] [Thread] [Top] [All Lists]