Re: [PATCH 7/8] KVM: Optimize kvm_read_cr[04]_bits()

Avi Kivity
2010-02-07T12:37:39Z

On 02/07/2010 02:33 PM, Jan Kiszka wrote:
> Avi Kivity wrote:
>
>> On 02/05/2010 10:26 AM, Jan Kiszka wrote:
>>
>>> Avi Kivity wrote:
>>>
>>>
>>>> 'mask' is always a constant, so we can check whether it includes a
>>>> bit that
>>>> might be owned by the guest very cheaply, and avoid the decache
>>>> call. Saves
>>>> a few hundred bytes of module text.
>>>>
>>>>
>>> -no-kvm-irqchip -smp 2 is broken for my Linux guests since this commit.
>>> Their user space applications receive #UD and things fall apart.
>>>
>>>
>>>
>> Does 2c8232fc help?
>>
>>
> Nope, unfortunately.
>
>

Which specific guests exhibit the behaviour?

--
error compiling committee.c: too many arguments to function