linux-kernel - [GIT PULL] x86/boot changes for v4.8

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Date:	Mon, 25 Jul 2016 12:01:25 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, Borislav Petkov <bp@...en8.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Kees Cook <keescook@...omium.org>,
	Andy Lutomirski <luto@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86/boot changes for v4.8

Linus,

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

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

   # HEAD: 6a79296cb15d947bcb4558011fe066e5d8252b35 x86/boot: Simplify EBDA-vs-BIOS reservation logic

Note: please only pull this tree if you've already pulled x86-mm-for-linus.

The main changes:

 - Add initial commits to randomize kernel memory section virtual addresses,
   enabled via a new kernel option: CONFIG_RANDOMIZE_MEMORY=y.
   (Thomas Garnier, Kees Cook, Baoquan He, Yinghai Lu)

 - Enhance KASLR (CONFIG_RANDOMIZE_BASE) physical memory randomization.
   (Kees Cook)

 - EBDA/BIOS region boot quirk cleanups (Andy Lutomirski, Ingo Molnar)

 - misc cleanups/fixes.

 Thanks,

	Ingo

------------------>

[ shortlog and diffstat generated manually ]

Andy Lutomirski (2):
      x86/boot: Clarify what x86_legacy_features.reserve_bios_regions does
      x86/boot: Simplify EBDA-vs-BIOS reservation logic

Baoquan He (2):
      x86/KASLR: Randomize virtual address separately
      x86/KASLR: Fix boot crash with certain memory configurations

Borislav Petkov (1):
      x86/boot/64: Add forgotten end of function marker

Ingo Molnar (2):
      Merge branch 'x86/mm' into x86/boot, to pick up dependencies
      x86/boot: Reorganize and clean up the BIOS area reservation code

Kees Cook (4):
      x86/KASLR, x86/power: Remove x86 hibernation restrictions
      x86/boot: Refuse to build with data relocations
      x86/KASLR: Clarify identity map interface
      x86/KASLR: Extend kernel image physical address randomization to addresses larger than 4G

Thomas Garnier (9):
      x86/mm: Refactor KASLR entropy functions
      x86/mm: Update physical mapping variable names
      x86/mm: Add PUD VA support for physical mapping
      x86/mm: Separate variable for trampoline PGD
      x86/mm: Implement ASLR for kernel memory regions
      x86/mm: Enable KASLR for physical mapping memory regions
      x86/mm: Enable KASLR for vmalloc memory regions
      x86/mm: Add memory hotplug support for KASLR memory randomization
      x86/mm: Do not reference phys addr beyond kernel

Yinghai Lu (1):
      x86/KASLR: Allow randomization below the load address


 Documentation/kernel-parameters.txt     |  10 +++---
 Documentation/x86/x86_64/mm.txt         |   4 +++
 arch/x86/Kconfig                        |  59 ++++++++++++++++++++++++++------
 arch/x86/boot/compressed/Makefile       |  18 ++++++++++
 arch/x86/boot/compressed/kaslr.c        | 251 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------
 arch/x86/boot/compressed/misc.c         |  49 +++++++++++++++-----------
 arch/x86/boot/compressed/misc.h         |  25 ++++++++------
 arch/x86/boot/compressed/pagetable.c    |  29 ++++++++++------
 arch/x86/include/asm/bios_ebda.h        |   2 +-
 arch/x86/include/asm/kaslr.h            |  15 ++++++++
 arch/x86/include/asm/page_64_types.h    |  11 +++++-
 arch/x86/include/asm/pgtable.h          |  17 ++++++++++
 arch/x86/include/asm/pgtable_64_types.h |  15 +++++---
 arch/x86/include/asm/x86_init.h         |   7 ++--
 arch/x86/kernel/ebda.c                  | 114 +++++++++++++++++++++++++++++++++++++------------------------
 arch/x86/kernel/head32.c                |   2 +-
 arch/x86/kernel/head64.c                |   2 +-
 arch/x86/kernel/head_64.S               |   3 +-
 arch/x86/kernel/platform-quirks.c       |   4 +--
 arch/x86/kernel/setup.c                 |   3 ++
 arch/x86/lib/Makefile                   |   1 +
 arch/x86/lib/kaslr.c                    |  90 ++++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/Makefile                    |   1 +
 arch/x86/mm/dump_pagetables.c           |  16 ++++++---
 arch/x86/mm/init.c                      |   4 +++
 arch/x86/mm/init_64.c                   | 167 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------------------
 arch/x86/mm/kaslr.c                     | 172 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/x86/mm/pageattr.c                  |  12 +++++--
 arch/x86/realmode/init.c                |   5 ++-
 kernel/power/hibernate.c                |   6 ----
 30 files changed, 778 insertions(+), 336 deletions(-)
 create mode 100644 arch/x86/include/asm/kaslr.h
 create mode 100644 arch/x86/lib/kaslr.c
 create mode 100644 arch/x86/mm/kaslr.c