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Re: [Xen-devel] [PATCH] enable hpet after s3 resume
| To: | "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] enable hpet after s3 resume |
| From: | "Guanqun Lu" <guanqun.lu@xxxxxxxxx> |
| Date: | Tue, 18 Nov 2008 20:11:53 +0800 |
| Cc: | "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "Lu, Guanqun" <guanqun.lu@xxxxxxxxx>, xen-devel组 <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 18 Nov 2008 04:12:21 -0800 |
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On Tue, Nov 18, 2008 at 6:15 PM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote: > On 18/11/08 10:04, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote: > >>> The hpet.c changes are ugly. What's so special about >>> hpet_broadcast_init() >>> that it needs to distinguish between boot and S3 resume? In >>> the latter case >>> it executes with APs still offline and IRQs disabled, so >>> what's wrong with >>> rewriting the fixmap entry, re-initialising the spinlock and hpet_event >>> info? >> >> Is it safe to set fixmap entry twice without unmap? If yes, then >> agree same logic applies to both boot and S3 resume. > > Yes, all it does is write a pte. Thanks for you info, and we will rewrite the patch accordingly. > > -- Keir > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > -- Guanqun _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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