From: Avi Kivity <avi@argo.co.il>
To: Bill Davidsen <davidsen@tmr.com>
Cc: Linux Kernel M/L <linux-kernel@vger.kernel.org>
Subject: Re: Where did KVM go in 2.6.22-git9?
Date: Fri, 20 Jul 2007 10:35:28 +0300 [thread overview]
Message-ID: <46A065C0.6030700@argo.co.il> (raw)
In-Reply-To: <46A02BFB.3090500@tmr.com>
Bill Davidsen wrote:
> I just built a 2.6.22-git9 kernel, and when I run oldconfig it (a)
> sets the processor type to pentium-pro, and (b) the KVM stuff simply
> isn't in the config. Before I spend a lot of time on this, was it
> disabled temporarily for some reason, or is it a known bug, or ???
>
> Processor is a Core2 E6600, and the starting config has KVM.
>
> Strong suggestion: put KVM in processor type and options, and if the
> CPU type selected supports the feature, let the builder turn it on in
> one place and have Kconfig turn on whatever voodoo is needed to allow
> it, rather than have people trying to find out what depends have
> changed with each release. I see KVm depends on X86_CMPXCHG64 which
> simply doesn't seem to be defined directly anywhere.
>
> Going back to 2.6.21.6 until whatever changed is at least documented.
>
Kconfig changes got kvm temporarily disabled on i386 nonpae. Current
-git has it back.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
prev parent reply other threads:[~2007-07-20 7:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-20 3:28 Where did KVM go in 2.6.22-git9? Bill Davidsen
2007-07-20 7:35 ` Avi Kivity [this message]
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