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Date: Sun, 07 Jan 2018 21:57:49 +0100
From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Ingo Molnar <mingo@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Borislav Petkov <bp@alien8.de>,
        David Woodhouse <dwmw@amazon.co.uk>,
        "Hansen, Dave" <dave.hansen@intel.com>
Subject: [patch 0/2] sysfs/cpu: Implement generic vulnerabilites directory
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The meltdown/spectre vulnerabilities affect several architectures and
people are asking for a common way to figure out whether a system is
affected or not.

Create

   /sys/devices/system/cpu/vulnerabilites

and the files

   /sys/devices/system/cpu/vulnerabilites/meltdown
   /sys/devices/system/cpu/vulnerabilites/spectre_v1
   /sys/devices/system/cpu/vulnerabilites/spectre_v2

Add the x86 implementation which shows:

meltdown    Mitigation: PTI
spectre_v1  Vulnerable
sepctre_v1  Vulnerable
   
On an AMD CPU the output of meltdown is: Not affected.

If PTI is turned off and the CPU is affected of meltdown the output
becomes: Vulnerable

That series applies on top of

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/pti

Thanks,

	tglx