linux-kernel - 3.18.17 Xen regression

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Date:	Tue, 07 Jul 2015 15:54:08 -0400
From:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:	stable <stable@...r.kernel.org>
CC:	Ian Campbell <ian.campbell@...rix.com>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: 3.18.17 Xen regression

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
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