RE: [Xen-users] VCPU number configuration

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Songtao Liu
> Sent: 02 July 2007 15:51
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] VCPU number configuration
> 
> Hi
> 
> as when I installed the XenU I initialized the VCPU=1, is it 
> possible to change VCPU=2

No, not without restarting the guest from scratch. Whilst it's possible
to REDUCE the processor count, you can't increase it after it's been
started [actually, the technicality of it is that there's a MAX_CPU
count in the domain config parameters, which is hidden from the config
files at present, but that is the number of VCPU's "reserved" when the
domain is set up, and with a normal config file, you get MAX_VCPUS=VCPUS
at the domain creation]. 

--
Mats



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