[GIT PULL 38/52] KVM: s390: provide logging for diagnose 0x500

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We might need to debug some virtio things, so better have diagnose 500
logged.

Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Acked-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
---
 arch/s390/kvm/diag.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 1ea4095..ce865bd 100644
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -212,6 +212,11 @@ static int __diag_virtio_hypercall(struct kvm_vcpu *vcpu)
 	    (vcpu->run->s.regs.gprs[1] != KVM_S390_VIRTIO_CCW_NOTIFY))
 		return -EOPNOTSUPP;
 
+	VCPU_EVENT(vcpu, 4, "diag 0x500 schid 0x%8.8x queue 0x%x cookie 0x%llx",
+			    (u32) vcpu->run->s.regs.gprs[2],
+			    (u32) vcpu->run->s.regs.gprs[3],
+			    vcpu->run->s.regs.gprs[4]);
+
 	/*
 	 * The layout is as follows:
 	 * - gpr 2 contains the subchannel id (passed as addr)
-- 
2.5.5

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