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[Xen-devel] 3.18.17 Xen regression

To: stable <stable@xxxxxxxxxxxxxxx>
From: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Date: Tue, 07 Jul 2015 15:54:08 -0400
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Campbell <ian.campbell@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
Delivery-date: Tue, 07 Jul 2015 19:54:35 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

Commit 63753fac67e1 ("x86: Store a per-cpu shadow copy of CR4") in3.18.y branch introduced a regression on PVH Xen guests.

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



Thanks.
-boris

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