linux-kernel - [PATCH 0/2] KPTI: get rid of cpu_entry

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Date:   Fri,  1 Dec 2017 22:20:09 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     X86 ML <x86@...nel.org>
Cc:     Borislav Petkov <bpetkov@...e.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Brian Gerst <brgerst@...il.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 0/2] KPTI: get rid of cpu_entry_area mapping duplication

I like this variant much better.  It might also fix the nasty bug tglx
and peterz were chasing.

Andy Lutomirski (2):
  Undo the split of setup_cpu_entry_area
  x86/kpti: Reference all cpu_entry_area pagetables in the usermode
    tables

 arch/x86/include/asm/fixmap.h | 14 +++++---
 arch/x86/include/asm/kpti.h   |  8 +++--
 arch/x86/kernel/cpu/common.c  |  3 --
 arch/x86/kernel/smpboot.c     |  2 ++
 arch/x86/kernel/traps.c       |  6 +++-
 arch/x86/mm/kpti.c            | 82 ++++++++++++++++++++++++++-----------------
 6 files changed, 71 insertions(+), 44 deletions(-)

-- 
2.13.6