After further investigation:
`xm dmesg' output:
(XEN) CPU0: VMX disabled by BIOS.
(XEN) VMX: failed to initialise.
I tried the following:
- updated to the latest BIOS 2.21 from Lenovo
- reboot and press `ThinkVantage' button
- under CPU, enable VMX
Rebooting into Xen, it still didn't work
After reading about this in search results, I found that many users have
had to do a cold reboot (remove power to the machine) after changing the
VMX settings in the BIOS. Doing this resolved the problem and now I
have VMX:
(XEN) VMX: Supported advanced features:
(XEN) - APIC MMIO access virtualisation
(XEN) - APIC TPR shadow
(XEN) - Virtual NMI
(XEN) - MSR direct-access bitmap
(XEN) HVM: ASIDs disabled.
(XEN) HVM: VMX enabled
(XEN) I/O virtualisation disabled
(XEN) Total of 2 processors activated.
The vmx flag in the cpuinfo output doesn't provide an accurate
indication of BIOS status.
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