RE: [PATCH] x86/mce: Do not use bank 1 for APEI generated error logs.

From	"Luck, Tony" <tony.luck@intel.com>
Newsgroups	linux.kernel
Subject	RE: [PATCH] x86/mce: Do not use bank 1 for APEI generated error logs.
Date	2016-05-31 20:20 +0200
Message-ID	<rEWqK-68v-29@gated-at.bofh.it> (permalink)
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> Btw, would it have any benefit of writing a "magic" value in m.bank
> to denote the error comes from APEI instead of number of banks which
> differs between generations?
>
> Something like
>
>	m.bank = -1;
>
> or so?

That might be a bit more obvious than my subtle "one more than possible
on this platform" magic number.

> 255 banks will never happen anyway! (Famous last words ... :-)))

Intel is stuck at 32 unless we come up with a new mechanism and change
all the code that generates MSR numbers with "base + 4*i". There are
some virtualization MSRs allocated at what would be bank32.

-Tony

Thread

RE: [PATCH] x86/mce: Do not use bank 1 for APEI generated error  logs. "Luck, Tony" <tony.luck@intel.com> - 2016-05-31 19:20 +0200
  Re: [PATCH] x86/mce: Do not use bank 1 for APEI generated error logs. Borislav Petkov <bp@alien8.de> - 2016-05-31 20:10 +0200
    RE: [PATCH] x86/mce: Do not use bank 1 for APEI generated error  logs. "Luck, Tony" <tony.luck@intel.com> - 2016-05-31 20:20 +0200
      Re: [PATCH] x86/mce: Do not use bank 1 for APEI generated error logs. Borislav Petkov <bp@alien8.de> - 2016-06-03 10:30 +0200

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