Browse - Computer Tips - Linux: How can I tell if I have protection from Meltdown and Spectre?
Q. Linux: How can I tell if I have protection from Meltdown and Spectre?
A. If you have protection there will be this folder
# cd /sys/devices/system/cpu/vulnerabilities
meltdown spectre_v1 spectre_v2
# cat meltdown
# cat spectre_v1
Mitigation: __user pointer sanitization
# cat spectre_v2
Mitigation: Full generic retpoline, IBPB, IBRS_FW
Source: Linux Pro Magazine