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authorChristian Borntraeger <borntraeger@de.ibm.com>2009-01-22 14:20:27 +0100
committerAvi Kivity <avi@redhat.com>2009-03-24 11:03:07 +0200
commit2c411b48af3e3c534b9cfb6a79be1df384d1ca1a (patch)
tree0c0ef4795033b2cd9ed7bed7c91cb0825d586ce9
parent7d656bd996b68737d5d07643bc57311059038d67 (diff)
KVM: s390: Fix printk on SIGP set arch
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@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--arch/s390/kvm/sigp.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 2a01b9e0280..f27dbedf086 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: