According to my research an Intel Bloomfield CPU (more specific: a i7-920) should support Intel VT-x technology (http://ark.intel.com/products/37147/Intel-Core-i7-920-Processor-8M-Cache-2_66-GHz-4_80-GTs-Intel-QPI) but under linux /proc/cpuinfo does not include the vmx flag as expected:
$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz stepping : 5 microcode : 0x11 [...removed a few lines...] flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc rep_good nopl nonstop_tsc pni monitor est ssse3 cx16 sse4_1 sse4_2 popcnt hypervisor lahf_lm ida dtherm [...repeating up to processor 7 (HT)...]
$ cat /proc/cpuinfo | grep vmx <returns no result>
As far as I understand it shows up here when disabled in BIOS but it does not. Output from rdmsr tells me Intel VT-x is enabled...?!
$ rdmsr 0x3a 5
What am I missing here? Thanks!