Re: -cpu core2duo still has no SSE4 support?

Dor Laor
2011-09-15T09:19:18Z

On 09/15/2011 12:14 PM, Jun Koi wrote:
> On Thu, Sep 15, 2011 at 5:05 PM, Sasha Levin<levinsasha928@gmail.com> wrote:
>> On Thu, 2011-09-15 at 17:04 +0800, Jun Koi wrote:
>>> hi,
>>>
>>> i run kvm with "-cpu core2duo" option, but /proc/cpuinfo only shows
>>> SSE and SSE2.
>>> my host is Core i7, so i suppose that i should have SSE4 with this
>>> option, but it seems not?
>>>
>>> is there any way to get SSE4?
>>
>> How about just running it with '-cpu host'?
>
> hah, that works, thanks!
>
> but then there are 2 problems:
>
> - "-cpu host" should be exposed in the doc. "kvm -cpu ?" reports no
> such option, so i missed it.
> - "-cpu core2duo" should enable SSE4, but it doesnt. a bug?

If this model should have contain it, yes.
According to sysconfigs/target/target-x86_64.conf it shouldn't be in
core2duo but does appear in newer ones.

>
> thanks,
> Jun
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