From: Ren Qiaowei <qiaowei.ren@intel.com>
To: Andy Lutomirski <luto@amacapital.net>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>
Cc: X86 ML <x86@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 1/4] x86, mpx: add documentation on Intel MPX
Date: Tue, 28 Jan 2014 11:40:46 +0800 [thread overview]
Message-ID: <52E726BE.50401@intel.com> (raw)
In-Reply-To: <52E6C134.3050608@mit.edu>
On 01/28/2014 04:27 AM, Andy Lutomirski wrote:
> On 01/26/2014 01:08 AM, Qiaowei Ren wrote:
>> +1) Providing handlers for bounds faults (#BR).
>> +
>> +When MPX is enabled, there are 2 new situations that can generate
>> +#BR faults. If a bounds overflow occurs then a #BR is generated.
>> +The fault handler will decode MPX instructions to get violation
>> +address and set this address into extended struct siginfo.
>
> Can you document exactly where the insn address and pointer value end
> up? (If it's in the (IMO hideous) cr2 field in ucontext, this needs to
> be documented. If it's somewhere useful in siginfo, that should also be
> documented to save people the time it takes to figure it out.)
>
Ok. I will describe extended siginfo at this documentation.
Thanks,
Qiaowei
next prev parent reply other threads:[~2014-01-28 3:46 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-26 9:08 [PATCH v3 0/4] Intel MPX support Qiaowei Ren
2014-01-26 8:19 ` Ingo Molnar
2014-01-26 8:20 ` Ren Qiaowei
2014-01-28 6:42 ` Ingo Molnar
2014-01-28 7:01 ` Ren Qiaowei
2014-01-28 18:26 ` H. Peter Anvin
2014-01-26 9:08 ` [PATCH v3 1/4] x86, mpx: add documentation on Intel MPX Qiaowei Ren
2014-01-26 3:06 ` Randy Dunlap
2014-01-26 3:15 ` Ren Qiaowei
2014-01-27 20:27 ` Andy Lutomirski
2014-01-28 3:40 ` Ren Qiaowei [this message]
2014-01-26 9:08 ` [PATCH v3 2/4] x86, mpx: hook #BR exception handler to allocate bound tables Qiaowei Ren
2014-01-27 20:36 ` Andy Lutomirski
2014-01-28 3:35 ` Ren Qiaowei
2014-01-28 5:21 ` Andy Lutomirski
2014-01-28 5:39 ` Ren Qiaowei
2014-01-28 6:42 ` Andy Lutomirski
2014-01-28 6:46 ` Ren Qiaowei
2014-01-26 9:08 ` [PATCH v3 3/4] x86, mpx: add prctl commands PR_MPX_INIT, PR_MPX_RELEASE Qiaowei Ren
2014-01-26 8:22 ` Ingo Molnar
2014-01-26 8:23 ` Ren Qiaowei
2014-01-26 8:39 ` Ingo Molnar
2014-01-26 11:37 ` Ren, Qiaowei
2014-01-27 1:50 ` H. Peter Anvin
2014-01-27 1:55 ` Ren Qiaowei
2014-01-27 2:10 ` H. Peter Anvin
2014-01-27 2:16 ` Ren Qiaowei
2014-01-27 21:54 ` Andy Lutomirski
2014-01-27 22:01 ` H. Peter Anvin
2014-01-26 9:08 ` Ingo Molnar
2014-01-26 12:49 ` Ren, Qiaowei
2014-01-26 15:14 ` Ingo Molnar
2014-01-27 2:01 ` Ren Qiaowei
2014-01-27 20:59 ` Andy Lutomirski
2014-01-26 9:08 ` [PATCH v3 4/4] x86, mpx: extend siginfo structure to include bound violation information Qiaowei Ren
2014-01-26 4:22 ` David Rientjes
2014-01-26 4:39 ` Ren Qiaowei
2014-01-26 21:38 ` David Rientjes
2014-01-27 1:34 ` Ren Qiaowei
2014-01-27 1:53 ` H. Peter Anvin
2014-01-27 1:56 ` Ren Qiaowei
2014-01-27 21:58 ` Andy Lutomirski
2014-01-28 2:43 ` Ren Qiaowei
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=52E726BE.50401@intel.com \
--to=qiaowei.ren@intel.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@amacapital.net \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.