diff options
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 21 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/priv.c | 2 |
3 files changed, 8 insertions, 17 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index b77dcfe867be..641639b2fbd0 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -330,6 +330,11 @@ static int kvm_s390_set_mem_control(struct kvm *kvm, struct kvm_device_attr *att unsigned int idx; switch (attr->attr) { case KVM_S390_VM_MEM_ENABLE_CMMA: + /* enable CMMA only for z10 and later (EDAT_1) */ + ret = -EINVAL; + if (!MACHINE_IS_LPAR || !MACHINE_HAS_EDAT1) + break; + ret = -EBUSY; mutex_lock(&kvm->lock); if (atomic_read(&kvm->online_vcpus) == 0) { @@ -1133,7 +1138,7 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) if (kvm_is_ucontrol(vcpu->kvm)) gmap_free(vcpu->arch.gmap); - if (kvm_s390_cmma_enabled(vcpu->kvm)) + if (vcpu->kvm->arch.use_cmma) kvm_s390_vcpu_unsetup_cmma(vcpu); free_page((unsigned long)(vcpu->arch.sie_block)); @@ -1344,7 +1349,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) } vcpu->arch.sie_block->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE; - if (kvm_s390_cmma_enabled(vcpu->kvm)) { + if (vcpu->kvm->arch.use_cmma) { rc = kvm_s390_vcpu_setup_cmma(vcpu); if (rc) return rc; @@ -1725,18 +1730,6 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, return rc; } -bool kvm_s390_cmma_enabled(struct kvm *kvm) -{ - if (!MACHINE_IS_LPAR) - return false; - /* only enable for z10 and later */ - if (!MACHINE_HAS_EDAT1) - return false; - if (!kvm->arch.use_cmma) - return false; - return true; -} - static bool ibs_enabled(struct kvm_vcpu *vcpu) { return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_IBS; diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index c5704786e473..81de2af28c9c 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -217,8 +217,6 @@ void exit_sie(struct kvm_vcpu *vcpu); void kvm_s390_sync_request(int req, struct kvm_vcpu *vcpu); int kvm_s390_vcpu_setup_cmma(struct kvm_vcpu *vcpu); void kvm_s390_vcpu_unsetup_cmma(struct kvm_vcpu *vcpu); -/* is cmma enabled */ -bool kvm_s390_cmma_enabled(struct kvm *kvm); unsigned long kvm_s390_fac_list_mask_size(void); extern unsigned long kvm_s390_fac_list_mask[]; diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index ad4242245771..1b95d2934472 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -761,7 +761,7 @@ static int handle_essa(struct kvm_vcpu *vcpu) VCPU_EVENT(vcpu, 5, "cmma release %d pages", entries); gmap = vcpu->arch.gmap; vcpu->stat.instruction_essa++; - if (!kvm_s390_cmma_enabled(vcpu->kvm)) + if (!vcpu->kvm->arch.use_cmma) return kvm_s390_inject_program_int(vcpu, PGM_OPERATION); if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE) |