Only 12vcpus detected by qubes on a 12700k?

[fsflover]

@baflya

If you really understand the risks that come with hyper threading and choose to accept them

Be sure to read this first though:

Activate Hyperthreading

It’s disabled by default for security - QSB #43: L1 Terminal Fault speculative side channel (XSA-273) | Qubes OS You can enable it (at risk) by changing boot parameters in GRUB/UEFI depending how you boot. For example, in grub.cfg edit the kernel parameter smt=off to “on”, or remove completely.

and this

Why does Qubes Disable Hyperthreading?

Question from a non tech savvy person. SMT = Hyperthreading? So Qubes disables hyperthreading? Why does Qubes do this? This essentially means that for Qubes there are only so called 4 “logical cores” if you got one CPU with 4 cores though it supports Hyperthreading, which would ammount to 8 logical cores. Thanks for all the answers. I am very interested in not only using it but understanding it as well. If you also got any good reads (books, blogs, wikis etc) on Intel-CPU, Xen, Virualisati…