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Re: [Xen-devel][PATCH 00/02] Extend max vcpu number for HVM guest
| To: | "Xu, Dongxiao" <dongxiao.xu@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel][PATCH 00/02] Extend max vcpu number for HVM guest |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Thu, 29 Oct 2009 15:55:19 +0000 |
| Cc: | Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
| Delivery-date: | Thu, 29 Oct 2009 08:55:49 -0700 |
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| Thread-topic: | [Xen-devel][PATCH 00/02] Extend max vcpu number for HVM guest |
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On 29/10/2009 15:24, "Xu, Dongxiao" <dongxiao.xu@xxxxxxxxx> wrote: > Keir, > I did a quick try, and the patch works. Thanks! > Since the ioreq page is limited to one page, so now i386 hypervisor could also > benefit from this patch. Therefore maybe the original patch comments is no > longer proper for the C/S 20389. :) Hm, yes it probably could, since the limit of 32 VCPUs for PV guests on i386 is because of lack of space for guest GDT/LDT mappings, which is not an issue for HVM. But frankly it's not worth chasing this. Any large HVM-capable system is going to support 64-bit operation, and therefore the right thing to do is install the x86_64 hypervisor. Personally I consider the i386 hypervisor obsolescent. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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