CentOS virt - Jun 2012 - centos6.2 install Virtualization

Today when I run "  yum groupinstall "Virtualization*"  " on
my server ,It
retunes just like this :

Warning: Group virtualization-tools does not have any packages.
Package virt-who-0.3-3.el6.noarch already installed and latest version
Package libvirt-client-0.9.4-23.el6_2.9.i686 already installed and latest
version
Package libvirt-0.9.4-23.el6_2.9.i686 already installed and latest version
Warning: Group virtualization-platform does not have any packages.
Package virt-manager-0.9.0-7.el6.i686 already installed and latest version
Package python-virtinst-0.600.0-5.el6.noarch already installed and latest
version
Package virt-viewer-0.4.1-7.el6.i686 already installed and latest version
Package virt-top-1.0.4-3.11.el6.i686 already installed and latest version
Warning: Group virtualization-client does not have any packages.
Warning: Group virtualization does not have any packages.

What does the  "does not have any packages" mean?Is it because of my
CPU
doesn't support Virtualization or because my yum resource doesn't have
the Virtualization
packages?
ths for reading and looking forward to be replied.
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Am 30.06.2012 06:56, schrieb gang ao:
> Today when I run "  yum groupinstall "Virtualization*" 
" on my server ,It
> retunes just like this :
> 
> Warning: Group virtualization-tools does not have any packages.
> Package virt-who-0.3-3.el6.noarch already installed and latest version
> Package libvirt-client-0.9.4-23.el6_2.9.i686 already installed and latest
> version
> Package libvirt-0.9.4-23.el6_2.9.i686 already installed and latest version
> Warning: Group virtualization-platform does not have any packages.
> Package virt-manager-0.9.0-7.el6.i686 already installed and latest version
> Package python-virtinst-0.600.0-5.el6.noarch already installed and latest
> version
> Package virt-viewer-0.4.1-7.el6.i686 already installed and latest version
> Package virt-top-1.0.4-3.11.el6.i686 already installed and latest version
> Warning: Group virtualization-client does not have any packages.
> Warning: Group virtualization does not have any packages.
> 
> What does the  "does not have any packages" mean?Is it because of
my CPU
> doesn't support Virtualization or because my yum resource doesn't
have
> the Virtualization
> packages?
> ths for reading and looking forward to be replied.
KVM isn't provided on non-64-bit platform. You need to run x86_64
version of CentOS 6 to use KVM based virtualization.

Alexander