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Re: [Xen-devel] RFC: large system support - 128 CPUs
| To: | Bill Burns <bburns@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] RFC: large system support - 128 CPUs |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Wed, 13 Aug 2008 12:15:14 +0100 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 13 Aug 2008 04:15:42 -0700 |
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| Thread-topic: | [Xen-devel] RFC: large system support - 128 CPUs |
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On 13/8/08 11:53, "Bill Burns" <bburns@xxxxxxxxxx> wrote: >> How many CPUs do you currently need/want to support? >> > > Currently just looking to get 128 working. > But would be nice to have some proper sizing, > or even detection of running out. There is a > 'last' GDT entry or some such #define, that is > never used (at least in the 3.1 code base). I think your 'two pages' change will probably work. Then we just need a run-time check when bringing a CPU online that there is space in the GDT for its entries. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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