linux-kernel - [GIT PULL] x86/alternatives for v6.11-rc1

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Message-ID: <20240715105528.GAZpUAIBt5b-zr4ot5@fat_crate.local>
Date: Mon, 15 Jul 2024 12:55:28 +0200
From: Borislav Petkov <bp@...en8.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] x86/alternatives for v6.11-rc1

Hi Linus,

please pull updates to x86/alternatives for v6.11-rc1.

Thx.

---

The following changes since commit 83a7eefedc9b56fe7bfeff13b6c7356688ffa670:

  Linux 6.10-rc3 (2024-06-09 14:19:43 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip x86_alternatives_for_v6.11_rc1

for you to fetch changes up to 0d3db1f14abb4eb28613fbeb1e2ad92bac76debf:

  x86/alternatives, kvm: Fix a couple of CALLs without a frame pointer (2024-07-01 12:41:11 +0200)

----------------------------------------------------------------
- This is basically PeterZ's idea to nest the alternative macros to avoid the
  need to "spell out" the number of alternates in an ALTERNATIVE_n() macro and
  thus have an ever-increasing complexity in those definitions.

  For ease of bisection, the old macros are converted to the new, nested
  variants in a step-by-step manner so that in case an issue is encountered
  during testing, one can pinpoint the place where it fails easier. Because
  debugging alternatives is a serious pain.

----------------------------------------------------------------
Borislav Petkov (AMD) (14):
      x86/alternative: Zap alternative_ternary()
      x86/alternative: Convert alternative()
      x86/alternative: Convert alternative_2()
      x86/alternative: Convert alternative_input()
      x86/alternative: Convert alternative_io()
      x86/alternative: Convert alternative_call()
      x86/alternative: Convert alternative_call_2()
      x86/alternative: Convert ALTERNATIVE_TERNARY()
      x86/alternative: Convert ALTERNATIVE_3()
      x86/alternative: Convert the asm ALTERNATIVE() macro
      x86/alternative: Convert the asm ALTERNATIVE_2() macro
      x86/alternative: Convert the asm ALTERNATIVE_3() macro
      x86/alternative: Replace the old macros
      x86/alternatives, kvm: Fix a couple of CALLs without a frame pointer

Peter Zijlstra (1):
      x86/alternatives: Add nested alternatives macros

 arch/x86/include/asm/alternative.h      | 241 ++++++++++----------------------
 arch/x86/include/asm/page_64.h          |   2 +-
 arch/x86/kernel/alternative.c           |  22 ++-
 arch/x86/kernel/fpu/xstate.h            |  14 +-
 arch/x86/kvm/emulate.c                  |   2 +-
 tools/objtool/Documentation/objtool.txt |  19 +++
 tools/objtool/arch/x86/special.c        |  23 +++
 tools/objtool/special.c                 |  16 +--
 8 files changed, 152 insertions(+), 187 deletions(-)


-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette