All of lore.kernel.org
 help / color / mirror / Atom feed
From: Borislav Petkov <bp@alien8.de>
To: X86 ML <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 0/6] x86/cpu: Do some janitorial work
Date: Thu, 27 Jan 2022 12:56:20 +0100	[thread overview]
Message-ID: <20220127115626.14179-1-bp@alien8.de> (raw)

From: Borislav Petkov <bp@suse.de>

Hi all,

here's v2 with some adjustments due to dependent changes which went
upstream, in the meantime. I figure I should send them out one more time
before I queue them.

Also, patch 1 handles printing of naked feature numbers for which we
don't generate a string for /proc/cpuinfo now too.

Thx.

changelog:
----------

v1
--

Beef up clearcpuid= so that it supports the strings from /proc/cpuinfo
too and remove a bunch of useless, and, in some cases even downright
dangerous, chicken bits we have added over the years.

Borislav Petkov (6):
  x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid=
  x86/cpu: Remove "nosep"
  x86/cpu: Remove CONFIG_X86_SMAP and "nosmap"
  x86/cpu: Remove "nosmep"
  x86/cpu: Remove "noexec"
  x86/cpu: Remove "noclflush"

 .../admin-guide/kernel-parameters.txt         | 24 ++---
 Documentation/x86/cpuinfo.rst                 |  5 +-
 Documentation/x86/x86_64/boot-options.rst     |  9 --
 arch/x86/Kconfig                              | 11 ---
 arch/x86/include/asm/cpufeature.h             |  7 +-
 arch/x86/include/asm/disabled-features.h      |  8 +-
 arch/x86/include/asm/proto.h                  |  1 -
 arch/x86/include/asm/smap.h                   | 24 -----
 arch/x86/kernel/cpu/common.c                  | 94 +++++++++----------
 arch/x86/kernel/setup.c                       | 28 +++++-
 arch/x86/mm/Makefile                          |  3 +-
 arch/x86/mm/init_64.c                         |  1 -
 arch/x86/mm/setup_nx.c                        | 62 ------------
 scripts/Makefile.build                        |  1 -
 scripts/link-vmlinux.sh                       |  3 -
 .../arch/x86/include/asm/disabled-features.h  |  8 +-
 16 files changed, 91 insertions(+), 198 deletions(-)
 delete mode 100644 arch/x86/mm/setup_nx.c

-- 
2.29.2

             reply	other threads:[~2022-01-27 11:56 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-27 11:56 Borislav Petkov [this message]
2022-01-27 11:56 ` [PATCH v2 1/6] x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid= Borislav Petkov
2022-02-07 22:04   ` Kees Cook
2022-02-08 11:54     ` Borislav Petkov
2022-04-04 18:22   ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 2/6] x86/cpu: Remove "nosep" Borislav Petkov
2022-02-07 21:58   ` Kees Cook
2022-04-04 18:22   ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 3/6] x86/cpu: Remove CONFIG_X86_SMAP and "nosmap" Borislav Petkov
2022-02-07 22:07   ` Kees Cook
2022-02-08 15:06     ` Borislav Petkov
2022-02-08 21:01       ` Borislav Petkov
2022-02-09  2:56         ` Kees Cook
2022-02-09 11:53           ` Borislav Petkov
2022-04-04 18:22   ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 4/6] x86/cpu: Remove "nosmep" Borislav Petkov
2022-02-07 22:07   ` Kees Cook
2022-04-04 18:22   ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 5/6] x86/cpu: Remove "noexec" Borislav Petkov
2022-02-07 22:25   ` Kees Cook
2022-02-08 17:40     ` Sean Christopherson
2022-02-08 19:56       ` Borislav Petkov
2022-04-04 18:22   ` [tip: x86/cpu] " tip-bot2 for Borislav Petkov
2022-01-27 11:56 ` [PATCH v2 6/6] x86/cpu: Remove "noclflush" Borislav Petkov
2022-02-07 22:08   ` Kees Cook
2022-04-04 18:22   ` [tip: x86/cpu] " tip-bot2 for 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=20220127115626.14179-1-bp@alien8.de \
    --to=bp@alien8.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=x86@kernel.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.