linux-kernel - Re: [PATCH v5 6/6] mtrr, mm, x86: Enhance MTRR checks for KVA huge page mapping

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Message-ID: <20150518205123.GI23618@pd.tnic>
Date:	Mon, 18 May 2015 22:51:24 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Toshi Kani <toshi.kani@...com>
Cc:	akpm@...ux-foundation.org, hpa@...or.com, tglx@...utronix.de,
	mingo@...hat.com, linux-mm@...ck.org, x86@...nel.org,
	linux-kernel@...r.kernel.org, dave.hansen@...el.com,
	Elliott@...com, pebolle@...cali.nl, mcgrof@...e.com
Subject: Re: [PATCH v5 6/6] mtrr, mm, x86: Enhance MTRR checks for KVA huge
 page mapping

On Mon, May 18, 2015 at 02:21:08PM -0600, Toshi Kani wrote:
> The caller is the one who makes the condition checks necessary to create
> a huge page mapping.

How? It would go and change MTRRs configuration and ranges and their
memory types so that a huge mapping succeeds?

Or go and try a different range?

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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