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| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2014-10-15 16:48:53 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-01-23 13:25:33 +0100 |
| commit | 6cddd432e3da5e25eccbc13844d03c871674a62e (patch) | |
| tree | 67c0c9cc7d4c8687de88310f78222cec6673622f /arch/s390/kvm/kvm-s390.h | |
| parent | 2822545f9fe264ec62d4abc69c17ae759eafe4ce (diff) | |
| download | linux-6cddd432e3da5e25eccbc13844d03c871674a62e.tar.bz2 | |
KVM: s390: handle stop irqs without action_bits
This patch removes the famous action_bits and moves the handling of
SIGP STOP AND STORE STATUS directly into the SIGP STOP interrupt.
The new local interrupt infrastructure is used to track pending stop
requests.
STOP irqs are the only irqs that don't get actively delivered. They
remain pending until the stop function is executed (=stop intercept).
If another STOP irq is already pending, -EBUSY will now be returned
(needed for the SIGP handling code).
Migration of pending SIGP STOP (AND STORE STATUS) orders should now
be supported out of the box.
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.h')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index a8f3d9b71c11..d72ff624920e 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -233,6 +233,8 @@ int psw_extint_disabled(struct kvm_vcpu *vcpu); void kvm_s390_destroy_adapters(struct kvm *kvm); int kvm_s390_si_ext_call_pending(struct kvm_vcpu *vcpu); extern struct kvm_device_ops kvm_flic_ops; +int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu); +void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu); /* implemented in guestdbg.c */ void kvm_s390_backup_guest_per_regs(struct kvm_vcpu *vcpu); |