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xen/sysfs: Use XENVER_guest_handle to query UUID
authorDaniel De Graaf <dgdegra@tycho.nsa.gov>
Thu, 16 Aug 2012 20:40:26 +0000 (16:40 -0400)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Thu, 23 Aug 2012 14:16:18 +0000 (10:16 -0400)
This hypercall has been present since Xen 3.1, and is the preferred
method for a domain to obtain its UUID. Fall back to the xenstore method
if using an older version of Xen (which returns -ENOSYS).

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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