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 tpear...@raptorengineering.com:
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> On 02/22/2017 05:31 PM, > i1w5d7gf38...@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
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> --
> coreboot mailing list: > coreboot@coreboot.org
> https://www.coreboot.org/mailman/listinfo/coreboot
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