VMX unrestricted mode support (UG)
UG(VMX unrestricted mode support)が付いてないCPUでは
Hosting Linux® guests or FreeBSD guests with more than one vCPU requires VMX unrestricted mode support (UG). Most newer processors, specifically the Intel® Core™ i3/i5/i7 and Intel® Xeon™ E3/E5/E7, support these features. UG support was introduced with Intel's Westmere micro-architecture.
UGあり
CPU: Intel(R) Xeon(R) CPU E5-2407 0 @ 2.20GHz (2200.05-MHz K8-class CPU)
VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
UGなし (L5520はNehalemでWestmereの前)
CPU: Intel(R) Xeon(R) CPU L5520 @ 2.27GHz (2261.05-MHz K8-class CPU)
VT-x: PAT,HLT,MTF,PAUSE,EPT,VPID