From: Christian Borntraeger <borntraeger@xxxxxxxxxx>
KVM on s390 does not support the ESA/390 architecture. We refuse to
change the architecture mode and print a warning. This patch removes
the printk for several reasons:
o A malicious guest can flood host dmesg
o The old message had no newline
o there is no connection between the message and the failing guest
This patch simply removes the printk. We already set the condition
code to 3 - the guest knows that something went wrong.
Reported-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/s390/kvm/sigp.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 2a01b9e..f27dbed 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -153,8 +153,6 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
switch (parameter & 0xff) {
case 0:
- printk(KERN_WARNING "kvm: request to switch to ESA/390 mode"
- " not supported");
rc = 3; /* not operational */
break;
case 1:
--
1.6.0.6
--
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