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KVM: silence lapic kernel messages that can be triggered by a guest

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Some Linux versions (f8) try to read EOI register that is write only.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Gleb Natapov 2009-07-08 11:26:54 +03:00 committed by Avi Kivity
parent a1b37100d9
commit 4088bb3cae
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kvm/lapic.c
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@ -597,14 +597,14 @@ static int apic_reg_read(struct kvm_lapic *apic, u32 offset, int len,
static const u64 rmask = 0x43ff01ffffffe70cULL;
if ((alignment + len) > 4) {
printk(KERN_ERR "KVM_APIC_READ: alignment error %x %d\n",
offset, len);
apic_debug("KVM_APIC_READ: alignment error %x %d\n",
offset, len);
return 1;
}
if (offset > 0x3f0 || !(rmask & (1ULL << (offset >> 4)))) {
printk(KERN_ERR "KVM_APIC_READ: read reserved register %x\n",
offset);
apic_debug("KVM_APIC_READ: read reserved register %x\n",
offset);
return 1;
}