linux-kernel - Re: [PATCH v6 00/10] x86/alternative: text

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Message-ID: <20181126103252.GN2113@hirez.programming.kicks-ass.net>
Date:   Mon, 26 Nov 2018 11:32:52 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Nadav Amit <namit@...are.com>
Cc:     Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux_dti@...oud.com, linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org
Subject: Re: [PATCH v6 00/10] x86/alternative: text_poke() fixes

On Tue, Nov 20, 2018 at 12:35:35PM -0800, Nadav Amit wrote:

> Nadav Amit (9):
>   Fix "x86/alternatives: Lockdep-enforce text_mutex in text_poke*()"
>   x86/jump_label: Use text_poke_early() during early init
>   fork: provide a function for copying init_mm
>   x86/alternative: initializing temporary mm for patching
>   x86/alternative: use temporary mm for text poking
>   x86/kgdb: avoid redundant comparison of patched code
>   x86: avoid W^X being broken during modules loading
>   x86/jump-label: remove support for custom poker
>   x86/alternative: remove the return value of text_poke_*()
> 
>  arch/x86/include/asm/fixmap.h        |   2 -
>  arch/x86/include/asm/mmu_context.h   |  32 +++++
>  arch/x86/include/asm/pgtable.h       |   3 +
>  arch/x86/include/asm/text-patching.h |   7 +-
>  arch/x86/kernel/alternative.c        | 197 ++++++++++++++++++++-------
>  arch/x86/kernel/jump_label.c         |  19 ++-
>  arch/x86/kernel/kgdb.c               |  25 +---
>  arch/x86/kernel/module.c             |   2 +-
>  arch/x86/mm/init_64.c                |  35 +++++
>  arch/x86/xen/mmu_pv.c                |   2 -
>  include/linux/filter.h               |   6 +
>  include/linux/sched/task.h           |   1 +
>  init/main.c                          |   3 +
>  kernel/fork.c                        |  24 +++-
>  kernel/module.c                      |  10 ++
>  15 files changed, 279 insertions(+), 89 deletions(-)

Thanks Nadav!

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>