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Date:      Wed, 22 May 2019 12:59:18 -0700
From:      John Baldwin <jhb@FreeBSD.org>
To:        cem@freebsd.org, Andriy Gapon <avg@freebsd.org>
Cc:        src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org>
Subject:   Re: svn commit: r348109 - in head/sys/x86: include x86
Message-ID:  <32532943-6b1a-71cc-1d95-f180927eb187@FreeBSD.org>
In-Reply-To: <CAG6CVpUWSTfdrDvQ0DhNND6Xu5MqdxrE=5qgDGV3brJQYDHXFg@mail.gmail.com>
References:  <201905221344.x4MDiGGV056469@repo.freebsd.org> <00116a41-d811-cda9-304e-589738c54508@FreeBSD.org> <CAG6CVpUWSTfdrDvQ0DhNND6Xu5MqdxrE=5qgDGV3brJQYDHXFg@mail.gmail.com>

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On 5/22/19 12:12 PM, Conrad Meyer wrote:
> On Wed, May 22, 2019 at 11:06 AM Andriy Gapon <avg@freebsd.org> wrote:
>>
>> On 22/05/2019 16:44, Andrew Gallatin wrote:
>>>   This is needed for AMD SMCA processors, as SMCA uses different
>>>   MSR address for access MCA banks.
>>
>> Just curious, what is SMCA?
> 
> Scalable MCA.  It's a set of AMD Fam17h MCA extensions.

How is it different aside from using different MSR numbers (which seems
a bit gratuitous if that is really all the change is).

-- 
John Baldwin



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