On 04/15/2010 01:40 PM, Joerg Roedel wrote:
quoted text
>
>> That means an NMI that happens outside guest code (for example, in the
>> mmu, or during the exit itself) would be counted as if in guest code.
>>      
> Hmm, true. The same is true for an NMI that happens between VMSAVE and
> STGI but that window is smaller. Anyway, I think we don't need the
> busy-wait loop. The NMI should be executed at a well defined point and
> we set the cpu_var back to NULL after that point.
>    

The point is not well defined.  Considering there are already at least 
two implementations svm, I don't want to rely on implementation details.

We could tune the position of the loop so that zero iterations are 
executed on the implementations we know about.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

--
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/