Re: [RFC] Expose host cpuid to guest

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

Dan Kenigsberg wrote:
> On Wed, Nov 21, 2007 at 01:52:15PM +0200, Avi Kivity wrote:
>   
>> Dan Kenigsberg wrote:
>>     
>>> These patches expose host CPU features (that are known to work under
>>> KVM) to guests. It makes a couple of benchmarks run faster, and
>>> generally gives kvm's user better info on its host.
>>>
>>> The kernel-space patch adds KVM_GET_SUPPORTED_CPUID ioctl to obtain the
>>> table of cpuid functions supported by the host. The user-space patch
>>> allows fine-tuning this table from the command-line.
>>>
>>> I had to define struct kvm_cpuid2, KVM_SET_CPUID2 etc., because cpuid
>>> functions are a little more complex than just function-value pairs.
>>>   commit e9775d0a16097cfb71779cb2fb985fb3e5040dc8
>>> Author: Dan Kenigsberg <danken-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
>>> Date:   Sun Nov 18 13:55:26 2007 +0200
>>>
>>>     Support -cpu host option. Negotiate cpuid table with userspace.
>>>       
>
> I believe the attached two patches apply all your comments.
>
>   
Applied kernel patch.  Will wait with userspace until next qemu merge 
(which is pending qemu-cvs regressions).

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


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