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

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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 ..

[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]#

Interesting command , Is n’t it ?

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