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Date: Tue, 07 Jul 2015 15:54:08 -0400
From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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To: stable <stable@vger.kernel.org>
CC: Ian Campbell <ian.campbell@citrix.com>,
	"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
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Subject: 3.18.17 Xen regression
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Commit 63753fac67e1 ("x86: Store a per-cpu shadow copy of CR4") in 
3.18.y branch introduced a regression on PVH Xen guests.

Please apply 5054daa285be ("x86/xen: Initialize cr4 shadow for 64-bit 
PV(H) guests") from mainline to fix this. 3.18.y appears to be the only 
affected branch.


Thanks.
-boris