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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>,
	x86@kernel.org, Peter Zijlstra <peterz@infradead.org>,
	Borislav Petkov <bp@alien8.de>,
	David Woodhouse <dwmw@amazon.co.uk>,
	Tim Chen <tim.c.chen@linux.intel.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Andi Kleen <ak@linux.intel.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	Dave Hansen <dave.hansen@intel.com>,
	Andy Lutomirski <luto@kernel.org>,
	Arjan Van De Ven <arjan.van.de.ven@intel.com>
Subject: [patch RFC 0/5] x86/spectre_v2: Initial integration of IBRS into the spectre_v2 mechanics
Date: Wed, 10 Jan 2018 02:06:52 +0100	[thread overview]
Message-ID: <20180110010652.404145126@linutronix.de> (raw)

I started to look at the IBRS series and this thing really needs a thorough
treatment with a steam blaster.

So I started that effort by integrating it proper into the existing spectre_v2
command line parsing and mitigation method selection.

It's not having any of the actual IBRS bits yet and is completely untested,
but I wanted to send it out before falling completely asleep so the folks
still awake can take a look and comment or expand/modify.

The first patch is from Boris to simplify the cpu feature bits sync after a
late microcode load, but it's not yet used. I just added it for reference
so people can see where this is heading.

I'll continue on that tomorrow morning after picking up a few patches here
and there.

Applies on top of

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

Thanks,

	tglx

             reply	other threads:[~2018-01-10  1:21 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-10  1:06 Thomas Gleixner [this message]
2018-01-10  1:06 ` [patch RFC 1/5] x86/CPU: Sync CPU feature flags late Thomas Gleixner
2018-01-10  1:37   ` Dave Hansen
2018-01-10  1:39     ` Van De Ven, Arjan
2018-01-10  1:47       ` Thomas Gleixner
2018-01-10  2:57         ` Andy Lutomirski
2018-01-10 11:02           ` Thomas Gleixner
2018-01-10  1:44     ` Thomas Gleixner
2018-01-10  6:20     ` Ingo Molnar
2018-01-10 11:33       ` Borislav Petkov
2018-01-10 12:38         ` Thomas Gleixner
2018-01-10  1:06 ` [patch RFC 2/5] x86/spectre: Simplify spectre code a bit Thomas Gleixner
2018-01-10  6:22   ` Ingo Molnar
2018-01-10  1:06 ` [patch RFC 3/5] x86/spectre: Prepare for IBRS selection Thomas Gleixner
2018-01-10  1:51   ` Dave Hansen
2018-01-10  1:06 ` [patch RFC 4/5] x86/cpufeatures: Detect Speculation control feature Thomas Gleixner
2018-01-10  6:32   ` Ingo Molnar
2018-01-10 11:06     ` Thomas Gleixner
2018-01-10  1:06 ` [patch RFC 5/5] x86/speculation: Add basic speculation control code Thomas Gleixner
2018-01-10  2:02   ` Dave Hansen
2018-01-10  4:11     ` Justin Forbes
2018-01-10  9:22     ` Peter Zijlstra
2018-01-10  9:27       ` David Woodhouse
2018-01-10 10:03         ` Peter Zijlstra
2018-01-10 11:22           ` David Woodhouse
2018-01-10 11:41             ` Thomas Gleixner
2018-01-10 11:45             ` Peter Zijlstra
2018-01-10 11:54         ` Andrea Arcangeli
2018-01-10 11:58           ` David Woodhouse
2018-01-10 12:01             ` Andrea Arcangeli
2018-01-10 12:07               ` Andrea Arcangeli
2018-01-10 12:12                 ` David Woodhouse
2018-01-10 12:20                   ` Andrea Arcangeli
2018-01-10 12:27                     ` Andrea Arcangeli
2018-01-10 13:42                     ` Van De Ven, Arjan
2018-01-10 12:09               ` David Woodhouse
2018-01-10 12:17                 ` Andrea Arcangeli
2018-01-10 12:29                   ` David Woodhouse
2018-01-10 12:41                     ` Andrea Arcangeli
2018-01-10 12:47                       ` Jiri Kosina
2018-01-10 12:51                         ` David Woodhouse
2018-01-10 13:02                           ` Andrea Arcangeli
2018-01-10 13:05                             ` Andrea Arcangeli
2018-01-10 13:10                               ` Andrea Arcangeli
2018-01-10 13:12                                 ` Andrea Arcangeli
2018-01-10 12:57                         ` Andrea Arcangeli
2018-01-10 13:07                           ` David Woodhouse
2018-01-10 13:45                             ` Van De Ven, Arjan
2018-01-10 13:52                               ` Andrea Arcangeli
2018-01-10 13:53                                 ` Van De Ven, Arjan
2018-01-10 21:35                                   ` Tim Chen
2018-01-10 22:13                                     ` Andrea Arcangeli
2018-01-10 13:46                             ` Thomas Gleixner
2018-01-10 13:51                               ` Van De Ven, Arjan
2018-01-10 13:53                                 ` Thomas Gleixner
2018-01-10 13:58                               ` David Woodhouse
2018-01-10 14:10                               ` Andrea Arcangeli
2018-01-10 14:14                                 ` Van De Ven, Arjan
2018-01-10 14:59                                 ` Dave Hansen
2018-01-10 15:13                                   ` Andrea Arcangeli
2018-01-10 15:24                                     ` David Woodhouse
2018-01-10 15:47                                       ` Andrea Arcangeli
2018-01-10 15:56                                         ` David Woodhouse
2018-01-10 13:10                           ` Jiri Kosina

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