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    SubjectRe: [PATCH] x86: enable x2apic early at the first point
    On Fri, Feb 20, 2009 at 10:41:23AM +0100, Ingo Molnar wrote:
    >
    > * 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.
    >
    OK. Will send next week.

    --
    Gleb.


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