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xen-devel
[Xen-devel] [PATCH] ioemu: Get guest uuid from xenstore
Keir Fraser wrote:
On 19/01/2009 18:02, "Ian Jackson" <Ian.Jackson@xxxxxxxxxxxxx> wrote:
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.
Perhaps worth checking with a xenstore-ls -p, or a xenstore-write attempt
within a domU, but the vm node should be owned by dom0 and read-only by the
domU. The recent xenstore permissions fixes should ensure that.
So the patch should be safe and if it's not it's a xend bug that needs
fixing.
I checked with 'xenstore-ls -p' on my system and could confirm that
the permission of /local/domain/<domid>/vm was set properly
(owned by dom0 and set read-only by domU), apparently since cs 18933.
Thanks,
Yosuke
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