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KVM: s390: implements the kvm_arch_vcpu_in_kernel()

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This implements kvm_arch_vcpu_in_kernel() for s390.  DIAG is a privileged
operation, so it cannot be called from problem state (user mode).

Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Longpeng(Mike) 2017-08-08 12:05:34 +08:00 committed by Paolo Bonzini
parent de63ad4cf4
commit 0546c63d98
2 changed files with 2 additions and 2 deletions
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2
arch/s390/kvm/diag.c
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@ -150,7 +150,7 @@ static int __diag_time_slice_end(struct kvm_vcpu *vcpu)
{ {
VCPU_EVENT(vcpu, 5, "%s", "diag time slice end"); VCPU_EVENT(vcpu, 5, "%s", "diag time slice end");
vcpu->stat.diagnose_44++; vcpu->stat.diagnose_44++;
kvm_vcpu_on_spin(vcpu, false); kvm_vcpu_on_spin(vcpu, true);
return 0; return 0;
} }

2
arch/s390/kvm/kvm-s390.c
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@ -2449,7 +2449,7 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu) bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu)
{ {
return false; return !(vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE);
} }
void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu) void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu)