linux-kernel - [RFC PTI 0/3] Clean up pgd handling and fix VSYSCALL and LDT

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Message-Id: <cover.1512763129.git.luto@kernel.org>
Date:   Fri,  8 Dec 2017 11:59:08 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     x86@...nel.org
Cc:     linux-kernel@...r.kernel.org, Borislav Petkov <bp@...en8.de>,
        Brian Gerst <brgerst@...il.com>,
        David Laight <David.Laight@...lab.com>,
        Kees Cook <keescook@...omium.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>
Subject: [RFC PTI 0/3] Clean up pgd handling and fix VSYSCALL and LDT

This needs more testing, but here goes.

Andy Lutomirski (3):
  x86/pti: Vastly simplify pgd synchronization
  Revert "x86/mm/pti: Disable native VSYSCALL"
  x86/pti: Put the LDT in its own PGD if PTI is on

 Documentation/x86/x86_64/mm.txt         |  11 ++-
 arch/x86/Kconfig                        |   8 --
 arch/x86/include/asm/mmu_context.h      |  33 +++++++-
 arch/x86/include/asm/pgtable_64.h       |  74 +++++++----------
 arch/x86/include/asm/pgtable_64_types.h |   2 +
 arch/x86/include/asm/processor.h        |  23 ++++--
 arch/x86/kernel/ldt.c                   | 139 +++++++++++++++++++++++++++++---
 arch/x86/mm/pti.c                       |  52 +++---------
 8 files changed, 224 insertions(+), 118 deletions(-)

-- 
2.13.6