提交 13ee3f67 编写于 作者: D David Hildenbrand 提交者: Christian Borntraeger

KVM: s390: vsie: support conditional-external-interception

We can easily enable cei for guest 2, so he can use it for guest 3.
Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
上级 5630a8e8
...@@ -104,6 +104,7 @@ struct kvm_s390_vm_cpu_machine { ...@@ -104,6 +104,7 @@ struct kvm_s390_vm_cpu_machine {
#define KVM_S390_VM_CPU_FEAT_GPERE 4 #define KVM_S390_VM_CPU_FEAT_GPERE 4
#define KVM_S390_VM_CPU_FEAT_GSLS 5 #define KVM_S390_VM_CPU_FEAT_GSLS 5
#define KVM_S390_VM_CPU_FEAT_IB 6 #define KVM_S390_VM_CPU_FEAT_IB 6
#define KVM_S390_VM_CPU_FEAT_CEI 7
struct kvm_s390_vm_cpu_feat { struct kvm_s390_vm_cpu_feat {
__u64 feat[16]; __u64 feat[16];
}; };
......
...@@ -275,6 +275,8 @@ static void kvm_s390_cpu_feat_init(void) ...@@ -275,6 +275,8 @@ static void kvm_s390_cpu_feat_init(void)
allow_cpu_feat(KVM_S390_VM_CPU_FEAT_GSLS); allow_cpu_feat(KVM_S390_VM_CPU_FEAT_GSLS);
if (sclp.has_ib) if (sclp.has_ib)
allow_cpu_feat(KVM_S390_VM_CPU_FEAT_IB); allow_cpu_feat(KVM_S390_VM_CPU_FEAT_IB);
if (sclp.has_cei)
allow_cpu_feat(KVM_S390_VM_CPU_FEAT_CEI);
} }
int kvm_arch_init(void *opaque) int kvm_arch_init(void *opaque)
......
...@@ -324,6 +324,8 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) ...@@ -324,6 +324,8 @@ static int shadow_scb(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
scb_s->eca |= scb_o->eca & 0x00000001U; scb_s->eca |= scb_o->eca & 0x00000001U;
if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_IB)) if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_IB))
scb_s->eca |= scb_o->eca & 0x40000000U; scb_s->eca |= scb_o->eca & 0x40000000U;
if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_CEI))
scb_s->eca |= scb_o->eca & 0x80000000U;
prepare_ibc(vcpu, vsie_page); prepare_ibc(vcpu, vsie_page);
rc = shadow_crycb(vcpu, vsie_page); rc = shadow_crycb(vcpu, vsie_page);
......
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