From: Dave Hansen <dave.hansen@intel.com>
To: Qiaowei Ren <qiaowei.ren@intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 1/3] x86, mpx: add documentation on Intel MPX
Date: Wed, 26 Feb 2014 11:17:29 -0800 [thread overview]
Message-ID: <530E3DC9.90609@intel.com> (raw)
In-Reply-To: <1393162071-23995-2-git-send-email-qiaowei.ren@intel.com>
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.
next prev parent reply other threads:[~2014-02-26 19:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-23 13:27 [PATCH v5 0/3] Intel MPX support Qiaowei Ren
2014-02-23 13:27 ` [PATCH v5 1/3] x86, mpx: add documentation on Intel MPX Qiaowei Ren
2014-02-26 19:17 ` Dave Hansen [this message]
2014-02-26 20:58 ` Dave Hansen
2014-02-26 21:44 ` H. Peter Anvin
2014-02-27 2:03 ` Ren Qiaowei
2014-02-26 21:19 ` Dave Hansen
2014-02-27 1:58 ` Ren Qiaowei
2014-02-23 13:27 ` [PATCH v5 2/3] x86, mpx: hook #BR exception handler to allocate bound tables Qiaowei Ren
2014-02-24 17:27 ` Dave Hansen
2014-02-24 17:51 ` H. Peter Anvin
2014-02-25 13:34 ` Ren, Qiaowei
2014-02-23 13:27 ` [PATCH v5 3/3] x86, mpx: extend siginfo structure to include bound violation information Qiaowei Ren
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