diff options
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/vsie.c | 7 |
2 files changed, 7 insertions, 2 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 175752877c0d..ce9813afd502 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -271,6 +271,8 @@ static void kvm_s390_cpu_feat_init(void) allow_cpu_feat(KVM_S390_VM_CPU_FEAT_SIIF); if (sclp.has_gpere) allow_cpu_feat(KVM_S390_VM_CPU_FEAT_GPERE); + if (sclp.has_gsls) + allow_cpu_feat(KVM_S390_VM_CPU_FEAT_GSLS); } int kvm_arch_init(void *opaque) diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index b8792ef01030..ea65bf2f0201 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -109,6 +109,8 @@ static int prepare_cpuflags(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) } if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GPERE)) newflags |= cpuflags & CPUSTAT_P; + if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GSLS)) + newflags |= cpuflags & CPUSTAT_SM; atomic_set(&scb_s->cpuflags, newflags); return 0; @@ -242,7 +244,7 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) struct kvm_s390_sie_block *scb_o = vsie_page->scb_o; struct kvm_s390_sie_block *scb_s = &vsie_page->scb_s; bool had_tx = scb_s->ecb & 0x10U; - unsigned long new_mso; + unsigned long new_mso = 0; int rc; /* make sure we don't have any leftovers when reusing the scb */ @@ -284,7 +286,8 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) scb_s->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE; scb_s->icpua = scb_o->icpua; - new_mso = scb_o->mso & 0xfffffffffff00000UL; + if (!(atomic_read(&scb_s->cpuflags) & CPUSTAT_SM)) + new_mso = scb_o->mso & 0xfffffffffff00000UL; /* if the hva of the prefix changes, we have to remap the prefix */ if (scb_s->mso != new_mso || scb_s->prefix != scb_o->prefix) prefix_unmapped(vsie_page); |
