From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 2 Nov 2015 01:51:54 +0000 (+1100)
Subject: Merge remote-tracking branch 'kvms390/next'
X-Git-Tag: KARO-TX6UL-2015-11-03~48
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c01f2724ec7020f6ef97af6411bf1aa92a11efee;hp=3f4926125220ca2992eb0bbba27237711e9abf5f;p=karo-tx-linux.git

Merge remote-tracking branch 'kvms390/next'
---

diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 7365e8a46032..b4a5aa110cec 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -336,28 +336,28 @@ static int handle_partial_execution(struct kvm_vcpu *vcpu)
 	return -EOPNOTSUPP;
 }
 
-static const intercept_handler_t intercept_funcs[] = {
-	[0x00 >> 2] = handle_noop,
-	[0x04 >> 2] = handle_instruction,
-	[0x08 >> 2] = handle_prog,
-	[0x10 >> 2] = handle_noop,
-	[0x14 >> 2] = handle_external_interrupt,
-	[0x18 >> 2] = handle_noop,
-	[0x1C >> 2] = kvm_s390_handle_wait,
-	[0x20 >> 2] = handle_validity,
-	[0x28 >> 2] = handle_stop,
-	[0x38 >> 2] = handle_partial_execution,
-};
-
 int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu)
 {
-	intercept_handler_t func;
-	u8 code = vcpu->arch.sie_block->icptcode;
-
-	if (code & 3 || (code >> 2) >= ARRAY_SIZE(intercept_funcs))
+	switch (vcpu->arch.sie_block->icptcode) {
+	case 0x00:
+	case 0x10:
+	case 0x18:
+		return handle_noop(vcpu);
+	case 0x04:
+		return handle_instruction(vcpu);
+	case 0x08:
+		return handle_prog(vcpu);
+	case 0x14:
+		return handle_external_interrupt(vcpu);
+	case 0x1c:
+		return kvm_s390_handle_wait(vcpu);
+	case 0x20:
+		return handle_validity(vcpu);
+	case 0x28:
+		return handle_stop(vcpu);
+	case 0x38:
+		return handle_partial_execution(vcpu);
+	default:
 		return -EOPNOTSUPP;
-	func = intercept_funcs[code >> 2];
-	if (func)
-		return func(vcpu);
-	return -EOPNOTSUPP;
+	}
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 9848b0d2b9d0..8fe2f1c722dc 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -514,7 +514,7 @@ static int kvm_s390_set_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
 
 	if (gtod_high != 0)
 		return -EINVAL;
-	VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x\n", gtod_high);
+	VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x", gtod_high);
 
 	return 0;
 }
@@ -527,7 +527,7 @@ static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
 		return -EFAULT;
 
 	kvm_s390_set_tod_clock(kvm, gtod);
-	VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx\n", gtod);
+	VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx", gtod);
 	return 0;
 }
 
@@ -559,7 +559,7 @@ static int kvm_s390_get_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
 	if (copy_to_user((void __user *)attr->addr, &gtod_high,
 					 sizeof(gtod_high)))
 		return -EFAULT;
-	VM_EVENT(kvm, 3, "QUERY: TOD extension: 0x%x\n", gtod_high);
+	VM_EVENT(kvm, 3, "QUERY: TOD extension: 0x%x", gtod_high);
 
 	return 0;
 }
@@ -571,7 +571,7 @@ static int kvm_s390_get_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
 	gtod = kvm_s390_get_tod_clock_fast(kvm);
 	if (copy_to_user((void __user *)attr->addr, &gtod, sizeof(gtod)))
 		return -EFAULT;
-	VM_EVENT(kvm, 3, "QUERY: TOD base: 0x%llx\n", gtod);
+	VM_EVENT(kvm, 3, "QUERY: TOD base: 0x%llx", gtod);
 
 	return 0;
 }
@@ -1098,7 +1098,9 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	if (!kvm->arch.sca)
 		goto out_err;
 	spin_lock(&kvm_lock);
-	sca_offset = (sca_offset + 16) & 0x7f0;
+	sca_offset += 16;
+	if (sca_offset + sizeof(struct sca_block) > PAGE_SIZE)
+		sca_offset = 0;
 	kvm->arch.sca = (struct sca_block *) ((char *) kvm->arch.sca + sca_offset);
 	spin_unlock(&kvm_lock);