K 10
svn:author
V 5
gibbs
K 8
svn:date
V 27
2011-09-21T00:13:04.200743Z
K 7
svn:log
V 532
Modify the netfront driver so it can successfully attach to
PV devices with the ioemu attribute set.

sys/dev/xen/netfront/netfront.c:
	o If a mac address for the interface cannot be found
	  in the front-side XenStore tree, look for an entry
	  in the back-side tree.  With ioemu devices, the
	  emulator does not populate the front side tree and
	  neither does Xend.
	o Return an error rather than panic when an attach
	  attempt fails.

Reported by:	Janne Snabb (fix inspired by patch provided)
PR:		kern/154302
Approved by:	re

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