From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Mike Lampard <mike-/+b+wjvSUqIxsqv6Oivclw@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: [RFC] Expose host cpuid to guest
Date: Thu, 22 Nov 2007 15:30:00 +0200 [thread overview]
Message-ID: <47458458.3030104@qumranet.com> (raw)
In-Reply-To: <200711221012.05384.mike-/+b+wjvSUqIxsqv6Oivclw@public.gmane.org>
Mike Lampard wrote:
> With current kvm-git (commit 51727a110220681f6f43b005d069e28c58f5d151)
> (userspace is current to commit 6a385c9539f9746d7ff51ef34c064c3eba86448b) and
> the userspace portion of this patch I cannot boot a 64 bit guest (Mandriva
> 2008 x64) on my AMD x2 without -cpu host. The guest kernel says "Your CPU
> does not support long mode. Use a 32bit distribution.". Works fine without
> the userspace portion of the patch.
>
> With -cpu host, the 64bit kernel starts to boot then panics almost
> immediately:
> Code: 0f 30 e9 ed fc ff ff b8 66 00 00 00 f0 0f ab 45 08 e9 e2 fa
> RIP [<ffffffff8020ff99> identify_cpu+0x609/0x700
> RSP <ffffffff8057df58>
> Kernel panic - not syncing: Attempted to kill the idle task!
>
> In the host log I see: cpu0 unhandled wrmsr: 0xc0010015, which might not have
> anything to do with this patch of course :)
>
A listing/disassembly of the function will help show where the problem is.
--
error compiling committee.c: too many arguments to function
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next prev parent reply other threads:[~2007-11-22 13:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-21 11:06 [RFC] Expose host cpuid to guest Dan Kenigsberg
[not found] ` <20071121110631.GA14292-iWbx9bcAnq+Hk9JtIoIkgNBPR1lH4CV8@public.gmane.org>
2007-11-21 11:21 ` Amit Shah
2007-11-21 11:52 ` Avi Kivity
[not found] ` <47441BEF.4070207-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-21 14:41 ` Dan Kenigsberg
[not found] ` <20071121144128.GA26036-iWbx9bcAnq+Hk9JtIoIkgNBPR1lH4CV8@public.gmane.org>
2007-11-21 15:11 ` Avi Kivity
2007-11-21 23:42 ` Mike Lampard
[not found] ` <200711221012.05384.mike-/+b+wjvSUqIxsqv6Oivclw@public.gmane.org>
2007-11-22 13:01 ` Dan Kenigsberg
[not found] ` <20071122130118.GA14295-iWbx9bcAnq+Hk9JtIoIkgNBPR1lH4CV8@public.gmane.org>
2007-11-22 13:20 ` Mike Lampard
[not found] ` <200711222350.14746.mike-/+b+wjvSUqIxsqv6Oivclw@public.gmane.org>
2007-11-22 13:36 ` Dan Kenigsberg
2007-11-22 13:30 ` Avi Kivity [this message]
[not found] ` <47458458.3030104-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-22 13:50 ` Mike Lampard
2007-12-25 15:56 ` [RFC] Expose host cpuid to guest: userspace patch Dan Kenigsberg
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