linux-kernel - [GIT PULL] livepatching for 5.8

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Date:   Wed, 3 Jun 2020 22:42:14 +0200 (CEST)
From:   Jiri Kosina <jikos@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
cc:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Miroslav Benes <mbenes@...e.cz>,
        Petr Mladek <pmladek@...e.com>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        linux-kernel@...r.kernel.org, live-patching@...r.kernel.org
Subject: [GIT PULL] livepatching for 5.8

Linus,

please pull from

  git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching.git for-linus

to receive livepatching subsystem updates for 5.8.

You are going to get a minor conflict with modules tree; the correct 
resolution is documented at

	http://lore.kernel.org/r/20200508180524.6995b07e@canb.auug.org.au

Alternatively, I can just prepare a branch for you to pull with the 
conflict resolved.

Thanks.

=====
- simplifications and improvements for issues Peter Ziljstra found during 
  his previous work on W^X cleanups. This allows us to remove livepatch 
  arch-specific .klp.arch sections and add proper support for jump labels
  in patched code. Also, this patchset removes the last 
  module_disable_ro() usage in the tree. Patches from Josh Poimboeuf and 
  Peter Zijlstra
- a few other minor cleanups  
=====

----------------------------------------------------------------
Jiri Kosina (1):
      livepatch: add arch-specific headers to MAINTAINERS

Josh Poimboeuf (8):
      livepatch: Disallow vmlinux.ko
      livepatch: Apply vmlinux-specific KLP relocations early
      livepatch: Prevent module-specific KLP rela sections from referencing vmlinux symbols
      s390: Change s390_kernel_write() return type to match memcpy()
      livepatch: Remove module_disable_ro() usage
      module: Remove module_disable_ro()
      x86/module: Use text_mutex in apply_relocate_add()
      module: Make module_enable_ro() static again

Kamalesh Babulal (1):
      MAINTAINERS: add lib/livepatch to LIVE PATCHING

Lukas Bulwahn (1):
      MAINTAINERS: adjust to livepatch .klp.arch removal

Peter Zijlstra (3):
      livepatch: Remove .klp.arch
      s390/module: Use s390_kernel_write() for late relocations
      x86/module: Use text_poke() for late relocations

Samuel Zou (1):
      livepatch: Make klp_apply_object_relocs static

 Documentation/livepatch/module-elf-format.rst |  15 +--
 MAINTAINERS                                   |   4 +-
 arch/s390/include/asm/uaccess.h               |   2 +-
 arch/s390/kernel/module.c                     | 147 ++++++++++++---------
 arch/s390/mm/maccess.c                        |   9 +-
 arch/um/kernel/um_arch.c                      |  16 +++
 arch/x86/kernel/Makefile                      |   1 -
 arch/x86/kernel/livepatch.c                   |  53 --------
 arch/x86/kernel/module.c                      |  43 ++++++-
 include/linux/livepatch.h                     |  17 ++-
 include/linux/module.h                        |   8 --
 kernel/livepatch/core.c                       | 178 ++++++++++++++++----------
 kernel/module.c                               |  26 ++--
 13 files changed, 283 insertions(+), 236 deletions(-)
 delete mode 100644 arch/x86/kernel/livepatch.c

-- 
Jiri Kosina
SUSE Labs