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Re: [Xen-devel] [PATCH] ioemu: Get guest uuid from xenstore

To: Yosuke Iwamatsu <y-iwamatsu@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] ioemu: Get guest uuid from xenstore
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Mon, 19 Jan 2009 18:02:00 +0000
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Yosuke Iwamatsu writes ("[Xen-devel] [PATCH] ioemu: Get guest uuid from 
xenstore"):
> xenstore_get_guess_uuid() retrieves the guest uuid by using a sysctl
> hypercall through libxc now, but when we use the ioemu-stubdom, the
> hcall is not allowed to be invoked.
> This patch makes ioemu get the guest uuid from xenstore, instead of
> using libxc.

I don't think this patch is safe.  /local/domain/<domid>/vm is
owned by (and thus writeable by) the domain in question.  We need a
trustworthy copy of this information.

Ian.

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