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@xxxxxxxxxx>
> 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.
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