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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2008-09-30 10:41:06 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2008-10-15 14:25:30 +0200 |
| commit | 1b10bf31a5de5b76e2e9c2937878a45c5ae2be37 (patch) | |
| tree | 1949c55a5ca54ecaf921c9687a56c013185647ca /arch | |
| parent | e5fcfc821a467bd0827635db8fd39ab1213987e5 (diff) | |
| download | linux-stable-1b10bf31a5de5b76e2e9c2937878a45c5ae2be37.tar.gz linux-stable-1b10bf31a5de5b76e2e9c2937878a45c5ae2be37.tar.bz2 linux-stable-1b10bf31a5de5b76e2e9c2937878a45c5ae2be37.zip | |
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')
| -rw-r--r-- | arch/x86/kvm/lapic.c | 16 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 4 |
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) |