linux-kernel - Re: [PATCH v5 1/3] x86, mpx: add documentation on Intel MPX

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Message-ID: <530E3DC9.90609@intel.com>
Date:	Wed, 26 Feb 2014 11:17:29 -0800
From:	Dave Hansen <dave.hansen@...el.com>
To:	Qiaowei Ren <qiaowei.ren@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>
CC:	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 1/3] x86, mpx: add documentation on Intel MPX

On 02/23/2014 05:27 AM, Qiaowei Ren wrote:
> +Bounds Directory (BD) and Bounds Tables (BT) are stored in
> +application memory and are allocated by the application (in case
> +of kernel use, the structures will be in kernel memory). The
> +bound directory and each instance of bound table are in contiguous
> +linear memory.

Hi Qiaowei,

Does this mean that if userspace decided to map something in the way of
the bounds tables that it would break MPX?

Also, in the description, could we s/linear/virtual/?  Linear seems to
be the term that Intel likes to use in its documents, but we almost
universally call them virtual addresses in the kernel.
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