This function will be used by the GIB alert handler and during
the GISA clear operation. Thus it gets factored out here.
Signed-off-by: Michael Mueller <mimu@xxxxxxxxxxxxx>
Reviewed-by: Pierre Morel <pmorel@xxxxxxxxxxxxx>
Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
---
arch/s390/kvm/interrupt.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 2149059e9e17..56d431508435 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -2882,11 +2882,16 @@ int kvm_s390_get_irq_state(struct kvm_vcpu *vcpu, __u8 __user *buf, int len)
return n;
}
+static void nullify_gisa(struct kvm_s390_gisa *gisa)
+{
+ memset(gisa, 0, sizeof(struct kvm_s390_gisa));
+ gisa->next_alert = (u32)(u64)gisa;
+}
+
void kvm_s390_gisa_clear(struct kvm *kvm)
{
if (kvm->arch.gisa) {
- memset(kvm->arch.gisa, 0, sizeof(struct kvm_s390_gisa));
- kvm->arch.gisa->next_alert = (u32)(u64)kvm->arch.gisa;
+ nullify_gisa(kvm->arch.gisa);
VM_EVENT(kvm, 3, "gisa 0x%pK cleared", kvm->arch.gisa);
}
}
--
2.13.4
