Re: [PATCH] silence kernel messages that can be triggered by a guest

[Marcelo Tosatti <mtosatti@redhat.com>]

On Wed, Jul 08, 2009 at 11:26:54AM +0300, Gleb Natapov wrote:
> Some Linux versions (f8) try to read EOI register that is write only.
> 
> Signed-off-by: Gleb Natapov <gleb@redhat.com>
> diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
> index ccafe0d..6b5dad4 100644
> --- a/arch/x86/kvm/lapic.c
> +++ b/arch/x86/kvm/lapic.c
> @@ -590,14 +590,14 @@ 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;
>  	}
>  
> --
> 			Gleb.

Applied, thanks.