From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Christoph Egger <Christoph.Egger@amd.com>
Cc: xen-devel@lists.xensource.com, Tim Deegan <Tim.Deegan@citrix.com>
Subject: Re: xen crash during Dom0 boot
Date: Thu, 14 Apr 2011 09:33:26 -0400 [thread overview]
Message-ID: <20110414133326.GI5548@dumpdata.com> (raw)
In-Reply-To: <201104141318.31679.Christoph.Egger@amd.com>
>
>
> The reason is that guest_walk_tables() in xen/arch/x86/mm/guest_walk.c fakes
> l1e entries for 2mb pages but not for 1gb pages.
> A workaround is to assign the Dom0 not more than 2 GB RAM via
> the dom0_mem xen boot parameter.
But if you use 4KB pages then the workaround is not neccessary, right?
>
> This can only be reproduced with Dom0 kernels which use the autotranslation
> feature (Linux Dom0 does, NetBSD Dom0 doesn't, don't know about other Dom0).
Autotranslation feature.. you mean that pagetables are not updated via
the Linux kernel, but instead by the Xen hypervisor?
next prev parent reply other threads:[~2011-04-14 13:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-14 11:18 xen crash during Dom0 boot Christoph Egger
2011-04-14 13:33 ` Konrad Rzeszutek Wilk [this message]
2011-04-14 14:44 ` Christoph Egger
2011-04-14 15:02 ` Jan Beulich
2011-04-15 8:36 ` Tim Deegan
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