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authorGuenther Hutzl2015-03-31 14:39:49 +0200
committerChristian Borntraeger2015-05-08 15:51:13 +0200
commita4a4f1916abbbc3148d79a37cf3fe4f3f6c604d9 (patch)
treebadc578ba42be824497abd57b479b94902ca1900 /arch/s390/kvm/kvm-s390.c
parentKVM: s390: optimize round trip time in request handling (diff)
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KVM: s390: make EDAT1 depend on host support
We should only enable EDAT1 for the guest if the host actually supports it and the cpu model for the guest has EDAT-1 enabled. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Guenther Hutzl <hutzl@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
-rw-r--r--arch/s390/kvm/kvm-s390.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f5282e62f87f..2da36c432aea 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1311,8 +1311,11 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH |
CPUSTAT_SM |
- CPUSTAT_STOPPED |
- CPUSTAT_GED);
+ CPUSTAT_STOPPED);
+
+ if (test_kvm_facility(vcpu->kvm, 8))
+ atomic_set_mask(CPUSTAT_GED, &vcpu->arch.sie_block->cpuflags);
+
kvm_s390_vcpu_setup_model(vcpu);
vcpu->arch.sie_block->ecb = 6;