From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Thu, 29 Jan 2015 13:09:54 +0000 (+0100)
Subject: KVM: s390: reenable LPP facility
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c23f397cc4e440742b2b27690694c9346f638800;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

KVM: s390: reenable LPP facility

commit 7be81a46695d ("KVM: s390/facilities: allow TOD-CLOCK steering
facility bit") accidentially disabled the "load program parameter"
facility bit during rebase for upstream submission (my fault).

Re-add that bit.

As this is only for a performance measurement helper instruction
(used by KVM itself) cc stable is not necessary see
http://www-01.ibm.com/support/docview.wss?uid=isg26fcd1cc32246f4c8852574ce0044734a
(SA23-2260 The Load-Program-Parameter and CPU-Measurement Facilities)
for details about LPP and its usecase.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Fixes: 7be81a46695d ("KVM: s390/facilities: allow TOD-CLOCK steering")
---

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 1dbab2340a66..3acf08ba88e4 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2074,7 +2074,7 @@ static int __init kvm_s390_init(void)
 		return -ENOMEM;
 	}
 	memcpy(vfacilities, S390_lowcore.stfle_fac_list, 16);
-	vfacilities[0] &= 0xff82fffbf47c2000UL;
+	vfacilities[0] &= 0xff82fffbf4fc2000UL;
 	vfacilities[1] &= 0x005c000000000000UL;
 	return 0;
 }