I've read online that there should be vulnerability info (Meltdown, Spectre) in /sys under /sys/devices/system/cpu/vulnerabilities but this doesn't exist on my PC.
Another place is in /proc/cpuinfo, no info on meltdown/spectre in there either. Yet another place is in dmesg, (grep 'page tables isolation') nothing there either. I've updated to gentoo-sources-4.9.76-r1, shouldn't this info be present? $ uname -a Linux zatpc 4.9.76-gentoo-r1 #1 SMP Mon Feb 12 09:20:32 PST 2018 x86_64 Intel(R) Core(TM)2 Extreme CPU X9650 @ 3.00GHz GenuineIntel GNU/Linux $ zgrep PAGE_TABLE_ISO /proc/config.gz CONFIG_PAGE_TABLE_ISOLATION=y Or does the page table isolation need to be explicitly turned on? Dan