Thanks for the information. Then maybe just dont stop booting when CPUID is missing. Just add a line to the coreboot log. Something like: "WARNING: Unknown CPU ID detected. Please report to the coreboot mailing lists if the machine is working fine"
Then you still have the same functionality as you told. CPUs that require different handling on different revisions can still be maintained different.
People are also way more motivated to report some unstable working CPUs then when they flash coreboot and the system simply didnt work at all and without reading the logfiles it looks like its completely dead (no screen, nothing, just fans are on).
22. Feb 2017 23:35 by tpearson@raptorengineering.com:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 02/22/2017 05:31 PM, i1w5d7gf38keg@tutanota.com wrote: What is the benefit of such a list? I cant see any benefit. Its only
additional work that is useless.
Example: Certain CPUs require special cache handling / setup to avoid
unusual faults or security vulnerabilities at runtime. The original
setup code properly configures model 1 stepping 1 CPUs, but stepping 2
CPUs require special setup. User installs coreboot and uses it with a
stepping 2 CPU without adding in the new setup code -- it seems to run,
but crashes every once in a while. User (possibly) figures out coreboot
is the problem and is very unhappy.
Again, this is very low level stuff; mistakes do not always show up as
"failure to boot". If you want to verify your CPUs and add them to the
list please do so!
- --
Timothy Pearson
Raptor Engineering
+1 (415) 727-8645 (direct line)
+1 (512) 690-0200 (switchboard)
https://www.raptorengineering.com
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iQEcBAEBAgAGBQJYriA+AAoJEK+E3vEXDOFbHt4H/ikXwMUu+XJ7cDsb8fx6ivcZ
RjyiNL3i7hIjIUYRxRbWcKau7FelLVypYtvLAnxqqDgSdZRfR+/oLrfFYpjAEXRG
A/d9eGq6HPKkF/HmxxkpY4RPLQEB4y85u1vheFXJnmg2AEdtaXG0iAlerPw5qZDL
bi20R4CQqyT6JL7vRLBawRiozZSpWHUllhbPq1XO2vgRohk78Lb9LlXSOWxBKHlL
obSL71Q46KJsKIQ3ovWfKgj1Pz+VA/+qhlXsFGp7S9NkHrAXFKPofBTLP4zzz/Nm
KqUWVn7ehCWFtsdt1rZqNWGtG9xgkPpe90V2f90BfsXJ9xhSVCVMud0EHsqDM6A=
=tl55
-----END PGP SIGNATURE-----
--
coreboot mailing list: coreboot@coreboot.org
https://www.coreboot.org/mailman/listinfo/coreboot