summaryrefslogtreecommitdiffstats
path: root/arch/s390/kvm/kvm-s390.c
diff options
context:
space:
mode:
authorLongpeng(Mike)2017-08-08 06:05:34 +0200
committerPaolo Bonzini2017-08-08 10:57:43 +0200
commit0546c63d988d347fc734fc8c624692b30f95f633 (patch)
tree6d1cb8466a100256015a9177862e73e013ed403c /arch/s390/kvm/kvm-s390.c
parentKVM: X86: implement the logic for spinlock optimization (diff)
downloadkernel-qcow2-linux-0546c63d988d347fc734fc8c624692b30f95f633.tar.gz
kernel-qcow2-linux-0546c63d988d347fc734fc8c624692b30f95f633.tar.xz
kernel-qcow2-linux-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/kvm-s390.c')
-rw-r--r--arch/s390/kvm/kvm-s390.c2
1 files changed, 1 insertions, 1 deletions
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)