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authorJan Kiszka <jan.kiszka@siemens.com>2008-09-30 10:41:06 +0200
committerAvi Kivity <avi@redhat.com>2008-10-15 14:25:30 +0200
commit1b10bf31a5de5b76e2e9c2937878a45c5ae2be37 (patch)
tree1949c55a5ca54ecaf921c9687a56c013185647ca /arch/x86/kvm
parente5fcfc821a467bd0827635db8fd39ab1213987e5 (diff)
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KVM: x86: Silence various LAPIC-related host kernel messages
KVM-x86 dumps a lot of debug messages that have no meaning for normal operation: - INIT de-assertion is ignored - SIPIs are sent and received - APIC writes are unaligned or < 4 byte long (Windows Server 2003 triggers this on SMP) Degrade them to true debug messages, keeping the host kernel log clean for real problems. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/lapic.c16
-rw-r--r--arch/x86/kvm/x86.c4
2 files changed, 9 insertions, 11 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index fd00f698692f..6571926bfd33 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -365,16 +365,14 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
vcpu->arch.mp_state = KVM_MP_STATE_INIT_RECEIVED;
kvm_vcpu_kick(vcpu);
} else {
- printk(KERN_DEBUG
- "Ignoring de-assert INIT to vcpu %d\n",
- vcpu->vcpu_id);
+ apic_debug("Ignoring de-assert INIT to vcpu %d\n",
+ vcpu->vcpu_id);
}
-
break;
case APIC_DM_STARTUP:
- printk(KERN_DEBUG "SIPI to vcpu %d vector 0x%02x\n",
- vcpu->vcpu_id, vector);
+ apic_debug("SIPI to vcpu %d vector 0x%02x\n",
+ vcpu->vcpu_id, vector);
if (vcpu->arch.mp_state == KVM_MP_STATE_INIT_RECEIVED) {
vcpu->arch.sipi_vector = vector;
vcpu->arch.mp_state = KVM_MP_STATE_SIPI_RECEIVED;
@@ -679,9 +677,9 @@ static void apic_mmio_write(struct kvm_io_device *this,
* Refer SDM 8.4.1
*/
if (len != 4 || alignment) {
- if (printk_ratelimit())
- printk(KERN_ERR "apic write: bad size=%d %lx\n",
- len, (long)address);
+ /* Don't shout loud, $infamous_os would cause only noise. */
+ apic_debug("apic write: bad size=%d %lx\n",
+ len, (long)address);
return;
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4cfdd1b6df0b..d6d7123d2644 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3224,8 +3224,8 @@ static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
int r;
if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_SIPI_RECEIVED)) {
- printk("vcpu %d received sipi with vector # %x\n",
- vcpu->vcpu_id, vcpu->arch.sipi_vector);
+ pr_debug("vcpu %d received sipi with vector # %x\n",
+ vcpu->vcpu_id, vcpu->arch.sipi_vector);
kvm_lapic_reset(vcpu);
r = kvm_x86_ops->vcpu_reset(vcpu);
if (r)