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authorDavid Hildenbrand <dahi@linux.vnet.ibm.com>2016-03-04 11:55:56 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2016-05-09 13:33:02 +0200
commitd6af0b491b1f675e5e5a12c5587f804c698a6ba5 (patch)
tree790fa16ed911d1ad35620934e5e1544cbcba39fd /arch/s390
parentedc5b05566dfc9b213604c09f25aa3abf8cb0ab9 (diff)
downloadlinux-d6af0b491b1f675e5e5a12c5587f804c698a6ba5.tar.bz2
KVM: s390: enable PFMFI only if guest has EDAT1
Only enable PFMF interpretation if the necessary facility (EDAT1) is available, otherwise the pfmf handler in priv.c will inject an exception Reviewed-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kvm/kvm-s390.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 668c087513e5..13b3f5eb49be 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1649,7 +1649,8 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
if (test_kvm_facility(vcpu->kvm, 50) && test_kvm_facility(vcpu->kvm, 73))
vcpu->arch.sie_block->ecb |= 0x10;
- vcpu->arch.sie_block->ecb2 = 8;
+ if (test_kvm_facility(vcpu->kvm, 8))
+ vcpu->arch.sie_block->ecb2 |= 0x08;
vcpu->arch.sie_block->eca = 0xC1002000U;
if (sclp.has_siif)
vcpu->arch.sie_block->eca |= 1;