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

Jan Kiszka
2010-02-07T12:33:56Z

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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.

Jan

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