Re: [Qemu-devel] [PATCH 2/2] Expose tsc deadline timer cpuid to guest

[Jan Kiszka]

On 2012-03-06 08:49, Liu, Jinsong wrote:
> Jan,
> 
> Any comments? I feel some confused about your point 'disable cpuid feature 
> for older machine types by default': are you planning a common approach for 
> this common issue, or, you just ask me a specific solution for the tsc 
> deadline timer case?

I think a generic solution for this can be as simple as passing a
feature exclusion mask to cpu_init. You could simple append a string of
"-feature1,-feature2" to the cpu model that is specified on creation.
And that string could be defined in the compat machine descriptions.
Does this make sense?

Jan

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