From: "H. Peter Anvin" <hpa@zytor.com>
To: Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andy Lutomirski <luto@amacapital.net>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Brian Gerst <brgerst@gmail.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH -v2] x86: Add an archinfo dumper module
Date: Sun, 7 Feb 2016 16:01:06 -0800 [thread overview]
Message-ID: <56B7DAC2.2030506@zytor.com> (raw)
In-Reply-To: <20160204152235.GB5343@pd.tnic>
On 02/04/16 07:22, Borislav Petkov wrote:
> Here's v2 with the stuff we talked about, implemented. I've added
> 'control_regs' file too so that you can do:
>
> $ cat /sys/kernel/debug/x86/archinfo/control_regs
> CR4: [-|-|SMEP|OSXSAVE|-|-|-|-|OSXMMEXCPT|OSFXSR|-|PGE|MCE|PAE|PSE|-|-|-|-]: 0x1406f0
>
> for example. Yeah, only CR4 right now.
>
> Off the top of my head, we would need "msrs" which dumps EFER and a
> bunch of other interesting MSRs along with the names of the set bits.
Is there a reason why all this parsing has to be done in kernel space?
-hpa
next prev parent reply other threads:[~2016-02-08 0:02 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-01 11:56 [RFC] Dump interesting arch/platform info Borislav Petkov
2016-02-01 23:29 ` Luck, Tony
2016-02-02 9:41 ` Borislav Petkov
2016-02-03 10:48 ` Ingo Molnar
2016-02-03 11:00 ` Borislav Petkov
2016-02-04 15:22 ` [PATCH -v2] x86: Add an archinfo dumper module Borislav Petkov
2016-02-04 19:07 ` Luck, Tony
2016-02-07 10:51 ` Borislav Petkov
2016-02-09 19:17 ` Luck, Tony
2016-02-09 19:46 ` Borislav Petkov
2016-02-05 19:51 ` Luck, Tony
2016-02-05 22:24 ` Luck, Tony
2016-02-08 0:01 ` H. Peter Anvin [this message]
2016-02-08 7:50 ` Boris Petkov
2016-02-09 12:23 ` Ingo Molnar
2016-02-09 14:01 ` Borislav Petkov
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=56B7DAC2.2030506@zytor.com \
--to=hpa@zytor.com \
--cc=bp@alien8.de \
--cc=brgerst@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@amacapital.net \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).