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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>,
	Dave Hansen <dave.hansen@intel.com>,
	Will Deacon <will.deacon@arm.com>
Subject: [patch V2 0/2] sysfs/cpu: Implement generic vulnerabilites directory
Date: Sun, 07 Jan 2018 22:47:59 +0100	[thread overview]
Message-ID: <20180107214759.387300853@linutronix.de> (raw)

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

V1 -> V2: Add documentation and use sprintf

Thanks,

	tglx

             reply	other threads:[~2018-01-07 21:49 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-07 21:47 Thomas Gleixner [this message]
2018-01-07 21:48 ` [patch V2 1/2] sysfs/cpu: Add vulnerability folder Thomas Gleixner
2018-01-07 22:14   ` Konrad Rzeszutek Wilk
2018-01-08  6:53   ` Greg Kroah-Hartman
2018-01-08  7:29   ` Dominik Brodowski
2018-01-08  7:33     ` Thomas Gleixner
2018-01-08 10:16   ` [tip:x86/pti] " tip-bot for Thomas Gleixner
2018-01-26 16:23   ` [patch V2 1/2] " Andrea Arcangeli
2018-01-26 16:35     ` Greg Kroah-Hartman
2018-01-29  5:30   ` Jon Masters
2018-01-07 21:48 ` [patch V2 2/2] x86/cpu: Implement CPU vulnerabilites sysfs functions Thomas Gleixner
2018-01-07 22:14   ` Konrad Rzeszutek Wilk
2018-01-08  6:54   ` Greg Kroah-Hartman
2018-01-08 10:17   ` [tip:x86/pti] " tip-bot for Thomas Gleixner

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