linux-kernel - Re: [RFC][PATCH 3/3] x86: make MP a required-feature on 64-bit

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Message-ID: <20140623061151.GA8178@tassilo.jf.intel.com>
Date:	Sun, 22 Jun 2014 23:11:51 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Dave Hansen <dave@...1.net>, linux-kernel@...r.kernel.org,
	bp@...en8.de, x86@...nel.org
Subject: Re: [RFC][PATCH 3/3] x86: make MP  a required-feature on 64-bit

> We probably should just the cpu_has_mp macro entirely.  All it is used
> for is printing a warning in amd_k7_smp_check().
> 
> Andi, Borislav -- as far as I can tell, we have *never* enforced this on
> the 64-bit kernel, although we have enforced it on 64-bit processors
> running the 32-bit kernel.  We should either enforce it on both or just
> drop it.  What is your opinion?

Drop it everywhere.

-Andi
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