Messages in this thread | | | Date | Fri, 20 Feb 2009 10:41:23 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86: enable x2apic early at the first point |
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* Gleb Natapov <gleb@redhat.com> wrote:
> > > I will post couple of patches, which revert's Gleb's patch > > > and another fix for the early boot failure issue, > > > tomorrow. > > If you'll revert my patch it will not be possible to use > x2apic in KVM (at least without KVM implementing interrupt > remapping which is unneeded otherwise) and x2apic interface is > much better for vitalization. Instead of reverting the patch > it will be better to add check if x2apic can be used without > intr-remmaping (all CPUs belong to cluster 0) or allow > enabling of x2apic without IR if running as a guest.
yep, that would be required - because your patch can break real systems right now. Mind sending me a fix for it?
I've applied Yinghai's fix as well, so please base it on latest tip:master.
Ingo
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