linux-kernel - [GIT PULL] x86/mm changes for v4.21

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Date:   Tue, 25 Dec 2018 00:11:06 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rik van Riel <riel@...riel.com>
Subject: [GIT PULL] x86/mm changes for v4.21

Linus,

Please pull the latest x86-mm-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-mm-for-linus

   # HEAD: 6848ac7ca39a226ede5df7af0efcc4ef0611e99c x86/mm/dump_pagetables: Use DEFINE_SHOW_ATTRIBUTE()

The main changes in this cycle were:

 - Update and clean up x86 fault handling, by Andy Lutomirski.

 - Drop usage of __flush_tlb_all() in kernel_physical_mapping_init() and 
   related fallout, by Dan Williams.

 - CPA cleanups and reorganization by Peter Zijlstra: simplify the flow 
   and remove a few warts.

 - Other misc cleanups.

  out-of-topic modifications in x86-mm-for-linus:
  -------------------------------------------------
  include/asm-generic/5level-fixup.h # 0a9fe8ca844d: x86/mm: Validate kernel_phys
  include/asm-generic/pgtable-nop4d-hack.h# 0a9fe8ca844d: x86/mm: Validate kernel_phys
  include/asm-generic/pgtable-nop4d.h# 0a9fe8ca844d: x86/mm: Validate kernel_phys
  include/asm-generic/pgtable-nopud.h# 0a9fe8ca844d: x86/mm: Validate kernel_phys
  include/asm-generic/pgtable.h      # 4369deaa2f02: generic/pgtable: Introduce s
                                   # 0cebbb60f759: generic/pgtable: Introduce {
                                   # c683c37cd132: generic/pgtable: Make {pmd, 

 Thanks,

	Ingo

------------------>
Andy Lutomirski (12):
      x86/fault: Check user_mode(regs) when avoiding an mmap_sem deadlock
      x86/cpufeatures, x86/fault: Mark SMAP as disabled when configured out
      x86/fault: Fold smap_violation() into do_user_addr_fault()
      x86/fault: Fix SMAP #PF handling buglet for implicit supervisor accesses
      x86/fault: Improve the condition for signalling vs OOPSing
      x86/fault: Make error_code sanitization more robust
      x86/fault: Don't set thread.cr2, etc before OOPSing
      x86/fault: Remove sw_error_code
      x86/fault: Don't try to recover from an implicit supervisor access
      x86/oops: Show the correct CS value in show_regs()
      x86/vsyscall/64: Use X86_PF constants in the simulated #PF error code
      x86/fault: Decode page fault OOPSes better

Dan Williams (5):
      generic/pgtable: Make {pmd, pud}_same() unconditionally available
      generic/pgtable: Introduce {p4d,pgd}_same()
      generic/pgtable: Introduce set_pte_safe()
      x86/mm: Validate kernel_physical_mapping_init() PTE population
      x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init()

Ingo Molnar (1):
      x86/fault: Clean up the page fault oops decoder a bit

Peter Zijlstra (9):
      x86/mm/cpa: Add ARRAY and PAGES_ARRAY selftests
      x86/mm/cpa: Add __cpa_addr() helper
      x86/mm/cpa: Make cpa_data::vaddr invariant
      x86/mm/cpa: Simplify the code after making cpa->vaddr invariant
      x86/mm/cpa: Optimize cpa_flush_array() TLB invalidation
      x86/mm/cpa: Make cpa_data::numpages invariant
      x86/mm/cpa: Fold cpa_flush_range() and cpa_flush_array() into a single cpa_flush() function
      x86/mm/cpa: Better use CLFLUSHOPT
      x86/mm/cpa: Rename @addrinarray to @numpages

Waiman Long (1):
      x86/mm/fault: Allow stack access below %rsp

Yangtao Li (1):
      x86/mm/dump_pagetables: Use DEFINE_SHOW_ATTRIBUTE()


 arch/x86/entry/vsyscall/vsyscall_64.c    |   2 +-
 arch/x86/include/asm/disabled-features.h |   8 +-
 arch/x86/include/asm/pgalloc.h           |  27 +++
 arch/x86/kernel/process_64.c             |   5 +-
 arch/x86/mm/debug_pagetables.c           |  58 +------
 arch/x86/mm/fault.c                      | 244 +++++++++++++++++-----------
 arch/x86/mm/init_64.c                    |  30 ++--
 arch/x86/mm/mm_internal.h                |   2 +
 arch/x86/mm/pageattr-test.c              |  31 +++-
 arch/x86/mm/pageattr.c                   | 271 +++++++++++++------------------
 arch/x86/mm/tlb.c                        |   4 +-
 include/asm-generic/5level-fixup.h       |   1 +
 include/asm-generic/pgtable-nop4d-hack.h |   1 +
 include/asm-generic/pgtable-nop4d.h      |   1 +
 include/asm-generic/pgtable-nopud.h      |   1 +
 include/asm-generic/pgtable.h            |  56 ++++++-
 16 files changed, 396 insertions(+), 346 deletions(-)