‘lscpu’ command to check ‘virtualization’ support of CPU/processor

Somebody was asking me, how to know whether the cpu support ‘virtualization’ or not.  Till now I was answering , ‘look at ‘svm or vmx’ flag in /proc/cpuinfo. For Intel, it should show ‘vmx’ and for AMD it should show ‘svm’.

But recently I have noticed a command called ‘lscpu’ which will list the specifications of a CPU. It also gives information like , whether the processor support ’64bit’ ..etc ..

[terminal]
[root@node]# rpm -qf `which lscpu`
util-linux-2.20.1-2.3.fc16.x86_64
[root@node]#

[root@node]# lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) list:   0-3
Thread(s) per core:    2
Core(s) per socket:    2
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 42
Stepping:              7
CPU MHz:               2801.000
BogoMIPS:              5581.80
Virtualization:        VT-x       ==========> Virtualization support
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              4096K
NUMA node0 CPU(s):     0-3

[root@node]# lscpu -x
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                4
On-line CPU(s) mask:   0xf
Thread(s) per core:    2
Core(s) per socket:    2
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 42
Stepping:              7
CPU MHz:               800.000
BogoMIPS:              5581.80
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              4096K
NUMA node0 CPU(s):     0xf
[root@unused uli]#

[/terminal]

Interesting command , Is n’t it ?