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| author |   Janosch Frank <frankja@linux.ibm.com> | 2019-05-15 13:24:30 +0200 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2020-02-27 19:47:12 +0100 |
| commit | fe28c7868f68b82e4517efb1dc3c22e2297df340 (patch) | |
| tree | 4bb74a1c85657764d000e5232e38699120ac7bc4 /arch/s390/kvm/intercept.c | |
| parent | KVM: s390: protvirt: UV calls in support of diag308 0, 1 (diff) | |
| download | linux-dev-fe28c7868f68b82e4517efb1dc3c22e2297df340.tar.xz linux-dev-fe28c7868f68b82e4517efb1dc3c22e2297df340.zip | |
KVM: s390: protvirt: Report CPU state to Ultravisor
VCPU states have to be reported to the ultravisor for SIGP
interpretation, kdump, kexec and reboot.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[borntraeger@de.ibm.com: patch merging, splitting, fixing]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/intercept.c')
| -rw-r--r-- | arch/s390/kvm/intercept.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 6d5e486c82d5..49b4fcf8ba67 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -80,6 +80,10 @@ static int handle_stop(struct kvm_vcpu *vcpu) return rc; } + /* + * no need to check the return value of vcpu_stop as it can only have + * an error for protvirt, but protvirt means user cpu state + */ if (!kvm_s390_user_cpu_state_ctrl(vcpu->kvm)) kvm_s390_vcpu_stop(vcpu); return -EOPNOTSUPP; |