From: Mukesh Rathor <mukesh.rathor@oracle.com>
To: Jan Beulich <jbeulich@novell.com>
Cc: Xen-devel@lists.xensource.com
Subject: Re: max vcpus in dom0
Date: Tue, 27 Apr 2010 19:34:22 -0700 [thread overview]
Message-ID: <20100427193422.36ac956e@mantra.us.oracle.com> (raw)
In-Reply-To: <4BD6AD07020000780005CF3B@vpn.id2.novell.com>
On Tue, 27 Apr 2010 09:23:19 +0100
"Jan Beulich" <jbeulich@novell.com> wrote:
> >>> Mukesh Rathor 04/27/10 4:20 AM >>>
> >Looking at a bug where dom0 is crashing coming up with more than 32
> >vcpus, the problem happens trying to initialize 32nd vcpu. I see
> >the shared info is limited to 32vcpus, implying we'd have a hard
> >limit of 32 vcpus in dom0, correct?
>
> That's the legacy limit, yes. Any attempt to go beyond 32 CPUs
> requires the kernel to use the per-vCPU-info-placement hypercall
> prior to bringing up those vCPU-s.
>
> Jan
Hi Jan,
Yes, I found your patch searching xen-devel implementing
VCPUOP_register_vcpu_info after I posted my msg. However, I don't find
any kernel using this other than pv-ops kernel. So I assume this is
work in progress. If you already have a patch for 2.6.18-xxx, please let
me know, if not, I'll work on it.
thanks,
Mukesh
next prev parent reply other threads:[~2010-04-28 2:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-27 8:23 max vcpus in dom0 Jan Beulich
2010-04-28 2:34 ` Mukesh Rathor [this message]
2010-04-28 15:38 ` Jeremy Fitzhardinge
-- strict thread matches above, loose matches on Subject: below --
2010-04-28 6:50 Jan Beulich
2010-04-27 2:17 Mukesh Rathor
2010-04-27 8:59 ` Pasi Kärkkäinen
2010-04-27 18:38 ` Jeremy Fitzhardinge
2010-04-27 18:41 ` Pasi Kärkkäinen
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