diff options
| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2016-04-04 15:46:26 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-10 12:07:22 +0200 |
| commit | 11ad65b79e8c27cdafe404e33938da270a55858a (patch) | |
| tree | 27f4b869ab21bfaee6d61332359095bd11dcc0d6 /arch | |
| parent | s390/sclp: detect intervention bypass facility (diff) | |
| download | linux-11ad65b79e8c27cdafe404e33938da270a55858a.tar.xz linux-11ad65b79e8c27cdafe404e33938da270a55858a.zip | |
KVM: s390: enable ib only if available
Let's enable intervention bypass only if the facility is acutally
available.
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')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 2a239554eb89..340fb405bc23 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -1845,7 +1845,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) if (test_kvm_facility(vcpu->kvm, 8)) vcpu->arch.sie_block->ecb2 |= 0x08; - vcpu->arch.sie_block->eca = 0xC1002000U; + vcpu->arch.sie_block->eca = 0x81002000U; + if (sclp.has_ib) + vcpu->arch.sie_block->eca |= 0x40000000U; if (sclp.has_siif) vcpu->arch.sie_block->eca |= 1; if (sclp.has_sigpif) |