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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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| Delivery-date: | Mon, 19 Jan 2009 10:02:43 -0800 |
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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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