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

[Andy Lutomirski]

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(-)

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2.13.6