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
Yet another place is in dmesg, (grep 'page tables isolation') nothing
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
Or does the page table isolation need to be explicitly turned on?