CPUS, cores and threads inside domU

CPUS, cores and threads inside domU

[Igor Chubin]

Hello, all.



Please, say me, is it possible to show 
distinct number of threads, cores and number
of the virtualized processor inside a guest
Xen domains (both PV and HVM)?
(AFAIU it is possible since Xen 3.3)

And if it is possible, how I should achieve this?

And I have a similar question about CPU flags.
How can I hide some CPU flags and do not show them 
inside a guest Xen domain?


Thank you


(I'm sorry if my questions are silly)

-- 
WBR, i.m.chubin

Re: CPUS, cores and threads inside domU

[Jean Guyader]

Hi Igor,

Igor Chubin wrote:
> Hello, all.
> 
> 
> 
> Please, say me, is it possible to show 
> distinct number of threads, cores and number
> of the virtualized processor inside a guest
> Xen domains (both PV and HVM)?
> (AFAIU it is possible since Xen 3.3)
> 

No, you can't do that.

> 
> And I have a similar question about CPU flags.
> How can I hide some CPU flags and do not show them 
> inside a guest Xen domain?
> 

You should have a look at the cpuid configuration entry.
With this field you can hide some CPU flags by forcing the corresponding bit to 0.

-- 
Jean Guyader