Re: [Xen-users] VT option is on but 'VMX enabled' is not displayed in xm dmesg

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Mon, Apr 12, 2010 at 07:21:24PM +0900, dongkyu lee wrote:
>    We have 35 xen-installed servers and enabled VT to use HVM. Five of these
>    servers do not show
>    any messages about vmx when 'xm dmesg | grep vmx' is entered but other
>    thirty servers shows message correctly like below:
> 
>    (XEN) VMX: Supported advanced features:
>    (XEN) VMX: EPT is available.
>    (XEN) VMX: VPID is available.
>    (XEN) HVM: VMX enabled
> 

Are the servers identical? 

Do they have different CPU models? 
cat /proc/cpuinfo

Do they have the same BIOS/firmware versions?

>    Even if five servers do not display 'vmx enabled' messages, 'xm info'
>    command shows that
>    xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
>    hvm-3.0-x86_64
> 
>    I have tried to create HVM serveral times on these servers and they worked
>    perfectly.
> 
>    Finally, everything is fine but no 'VMX enabled' message even if VT is
>    enabled.
>    Any comments/hints would be greatly appreciated. Thank you.


What version of Xen are you using? What version of dom0 kernel? 

-- Pasi


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