Difference in characteristics between lscpu and cpuid go implementation for AMD Ryzen

[ionutnechita]

Hi NFD Team,

I try today to verify my features with cpuid go implementation.
But I noticed differences in features between cpuid your binary and lscpu.
Several features are missing.
Example: SVM for virtualization support

CPUID go implementation version: cpuid-Linux_x86_64_2.0.14
OS: openSUSE Tumbleweed 20220706
AMD CPU: AMD Ryzen 9 5900HS with Radeon Graphics

cpuid go: cpuid-go.txt
lscpu: lscpu.txt
cpuinfo: cpuinfo.txt
cpuid e0x: cpuid-e0x.txt

First file for diff: a.txt
Second file for diff: b.txt

Diff:
...
SVM | VTE
SVM_LOCK <
SYSCALL <
TCE <
TOPOEXT <
TSC <
TSC_SCALE <
UMIP <
VAES <
VGIF <
VMCB_CLEAN <
VME <
VMMCALL <
VPCLMULQDQ <
V_SPEC_CTRL <
V_VMSAVE_VMLOAD <
...

BR,
Ionut Nechita
ionutnechita

[klauspost]

Added #108 (VPCLMULQDQ and VAES) and added the SVM related ones in #109