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| author |   Longpeng(Mike) <longpeng2@huawei.com> | 2017-08-08 12:05:34 +0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2017-08-08 10:57:43 +0200 |
| commit | 0546c63d988d347fc734fc8c624692b30f95f633 (patch) | |
| tree | 6d1cb8466a100256015a9177862e73e013ed403c /arch/s390/kvm | |
| parent | KVM: X86: implement the logic for spinlock optimization (diff) | |
| download | linux-dev-0546c63d988d347fc734fc8c624692b30f95f633.tar.xz linux-dev-0546c63d988d347fc734fc8c624692b30f95f633.zip | |
KVM: s390: implements the kvm_arch_vcpu_in_kernel()
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>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/diag.c | 2 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c index 6182edebea3d..5ee90020382d 100644 --- a/arch/s390/kvm/diag.c +++ b/arch/s390/kvm/diag.c @@ -150,7 +150,7 @@ static int __diag_time_slice_end(struct kvm_vcpu *vcpu) { VCPU_EVENT(vcpu, 5, "%s", "diag time slice end"); vcpu->stat.diagnose_44++; - kvm_vcpu_on_spin(vcpu, false); + kvm_vcpu_on_spin(vcpu, true); return 0; } diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 5e07322034b9..9f23a9e81a91 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -2449,7 +2449,7 @@ int kvm_arch_vcpu_runnable(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) |