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
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