xenbus: don't rely on xen_initial_domain to detect local xenstore
The xenstore daemon does not have to run in the xen initial domain; however, Linux currently uses xen_initial_domain to test if a loopback event channel should be used instead of the event channel provided in Xen's start_info structure. Instead, if the event channel passed in the start_info structure is not valid, assume that this domain will run xenstored locally and set up the event channel. Signed-off-by:Daniel De Graaf <dgdegra@tycho.nsa.gov> Reviewed-by:
Ian Campbell <Ian.Campbell@citrix.com> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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