Convenient Intel PPIN Reporting To Come With Linux 5.18

[phoronix]

Phoronix: Convenient Intel PPIN Reporting To Come With Linux 5.18

With the Linux 5.18 kernel coming later this year, the Intel Protected Processor Inventory Number (PPIN) will be more easily exposed for their server processors...

https://www.phoronix.com/scan.php?page=news_item&px=Intel-PPIN-Linux-5.18

[Danny3]

Since the server reason is given, it this only for server CPUs?

[uid313]

Sounds like some fingerprinting that I do not want.

[carewolf]

Didn't we already have another unique CPU ID, so this a second one?

[GrumpyLinuxUser]

Wiki: Processor Serial Number (redirects to Pentium III: Controversy about privacy issues)

Equivalent feature was so controversial in 1999 Pentium III processors, that Intel was forced to remove it.

This feature (PPIN) was later added back in Intel's Ivy Bridge and AMD's Zen 2.

[catpig]

Sounds like some fingerprinting that I do not want.

Not to worry, this is only accessible to authorized users

Edit: And more seriously, I fail to see the benefit. Surely there's a better way to identify a physical processor on a multisocket board than having to remove all the cooling, remove all the heat paste, etc. just to check the label...

[uid313]

Not to worry, this is only accessible to authorized users

Edit: And more seriously, I fail to see the benefit. Surely there's a better way to identify a physical processor on a multisocket board than having to remove all the cooling, remove all the heat paste, etc. just to check the label...

I don't want software to query the PPIN on my CPU to build a fingerprint.