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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2015-11-24 16:32:35 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-21 09:43:40 +0200 |
| commit | 77d18f6d47fbeaaceb15df9ab928757d5bb96ec6 (patch) | |
| tree | def740b34870bb2b1bcfb721f71b4fa312c7d970 /arch/s390/kvm | |
| parent | KVM: s390: vsie: support shared IPTE-interlock facility (diff) | |
| download | linux-77d18f6d47fbeaaceb15df9ab928757d5bb96ec6.tar.xz linux-77d18f6d47fbeaaceb15df9ab928757d5bb96ec6.zip | |
KVM: s390: vsie: support guest-PER-enhancement
We can easily forward the guest-PER-enhancement facility to guest 2 if
available.
Acked-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/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/vsie.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index d735612f9081..175752877c0d 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -269,6 +269,8 @@ static void kvm_s390_cpu_feat_init(void) allow_cpu_feat(KVM_S390_VM_CPU_FEAT_64BSCAO); if (sclp.has_siif) allow_cpu_feat(KVM_S390_VM_CPU_FEAT_SIIF); + if (sclp.has_gpere) + allow_cpu_feat(KVM_S390_VM_CPU_FEAT_GPERE); } int kvm_arch_init(void *opaque) diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index 1615ed37f7da..b8792ef01030 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -107,6 +107,8 @@ static int prepare_cpuflags(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) return set_validity_icpt(scb_s, 0x0001U); newflags |= CPUSTAT_GED2; } + if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GPERE)) + newflags |= cpuflags & CPUSTAT_P; atomic_set(&scb_s->cpuflags, newflags); return 0; |