From: David Hildenbrand <dahi@linux.vnet.ibm.com>
Date: Mon, 18 Jul 2016 07:18:13 +0000 (+0200)
Subject: KVM: s390: let ptff intercepts result in cc=3
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9acc317b183fdd3ed3bca218271875c0e808daae;p=linux-beck.git

KVM: s390: let ptff intercepts result in cc=3

We don't emulate ptff subfunctions, therefore react on any attempt of
execution by setting cc=3 (Requested function not available).

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index c77ad2dc334f..46160388e996 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -1185,7 +1185,15 @@ static int handle_sckpf(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+static int handle_ptff(struct kvm_vcpu *vcpu)
+{
+	/* we don't emulate any control instructions yet */
+	kvm_s390_set_psw_cc(vcpu, 3);
+	return 0;
+}
+
 static const intercept_handler_t x01_handlers[256] = {
+	[0x04] = handle_ptff,
 	[0x07] = handle_sckpf,
 };