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Re: [Xen-devel] PAE requirement in config file for HVM guests
| To: | Jan Beulich <jbeulich@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] PAE requirement in config file for HVM guests |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Wed, 22 Nov 2006 09:47:35 +0000 |
| Delivery-date: | Wed, 22 Nov 2006 01:47:48 -0800 |
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| Thread-topic: | [Xen-devel] PAE requirement in config file for HVM guests |
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On 22/11/06 08:36, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: > Could anyone explain why it was necessary in 3.0.3 to require config files > for 32-bit/PAE or 64-bit x86 hvm guests on respective hypervisors to have > an explicit 'pae = 1', whereas in 3.0.2 this wasn't needed? It would seem > that the emulated CPUID feature flag should, as in 3.0.2, just be > suppressed if the hypervisor really can't support PAE (i.e. 32-bit non-PAE > build). It's only to allow pae to be masked off. I think that you can specify pae=1 always and it won't be advertised to the guest if the host doesn't support it. If this isn't the case it should be, and I'd take a patch to make it so. :-) Oh, and xend should default pae=1 if it doesn't do so already. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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