linux-stable.git/arch/x86/boot, branch v5.2

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497

2019-06-19T15:09:53+00:00

Based on 1 normalized pattern(s):

  this file is part of the linux kernel and is made available under
  the terms of the gnu general public license version 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 28 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Allison Randal 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.534229504@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 268

2019-06-05T15:30:29+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 51 franklin street fifth floor boston ma
  02110 1301 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 46 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Alexios Zavras 
Reviewed-by: Richard Fontana 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141334.135501091@linutronix.de
Signed-off-by: Greg Kroah-Hartman

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2019-06-02T18:10:01+00:00

Pull x86 fixes from Ingo Molnar:
 "Two fixes: a quirk for KVM guests running on certain AMD CPUs, and a
  KASAN related build fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU/AMD: Don't force the CPB cap when running under a hypervisor
  x86/boot: Provide KASAN compatible aliases for string routines

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 83

2019-05-24T15:37:52+00:00

Based on 1 normalized pattern(s):

  this file is part of the linux kernel and is made available under
  the terms of the gnu general public license version 2 or at your
  option any later version incorporated herein by reference

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 18 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Richard Fontana 
Reviewed-by: Allison Randal 
Reviewed-by: Armijn Hemel 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520075211.321157221@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48

2019-05-24T15:27:13+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation inc 53 temple place ste 330 boston ma
  02111 1307 usa either version 2 of the license or at your option any
  later version incorporated herein by reference

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 13 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520170858.645641371@linutronix.de
Signed-off-by: Greg Kroah-Hartman

x86/boot: Provide KASAN compatible aliases for string routines

2019-05-24T06:44:16+00:00

The KASAN subsystem wraps calls to memcpy(), memset() and memmove()
to sanitize the arguments before invoking the actual routines, which
have been renamed to __memcpy(), __memset() and __memmove(),
respectively. When CONFIG_KASAN is enabled for the kernel build but
KASAN code generation is disabled for the compilation unit (which is
needed for things like the EFI stub or the decompressor), the string
routines are just #define'd to their __ prefixed names so that they
are simply invoked directly.

This does however rely on those __ prefixed names to exist in the
symbol namespace, which is not currently the case for the x86
decompressor, which may lead to errors like

  drivers/firmware/efi/libstub/tpm.o: In function `efi_retrieve_tpm2_eventlog':
  tpm.c:(.text+0x2a8): undefined reference to `__memcpy'

So let's expose the __ prefixed symbols in the decompressor when
KASAN is enabled.

Signed-off-by: Ard Biesheuvel 
Acked-by: Jarkko Sakkinen 
Cc: Andrey Konovalov 
Cc: Borislav Petkov 
Cc: Linus Torvalds 
Cc: Matthew Garrett 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-efi@vger.kernel.org
Signed-off-by: Ingo Molnar

Merge branch 'acpica'

2019-05-06T08:49:01+00:00

* acpica:
  ACPICA: Update version to 20190405
  ACPICA: Namespace: add check to avoid null pointer dereference
  ACPICA: Update version to 20190329
  ACPICA: utilities: fix spelling of PCC to platform_comm_channel
  ACPICA: Rename nameseg length macro/define for clarity
  ACPICA: Rename nameseg compare macro for clarity
  ACPICA: Rename nameseg copy macro for clarity

x86/boot: Disable RSDP parsing temporarily

2019-04-22T09:36:43+00:00

The original intention to move RDSP parsing very early, before KASLR
does its ranges selection, was to accommodate movable memory regions
machines (CONFIG_MEMORY_HOTREMOVE) to still be able to do memory
hotplug.

However, that broke kexec'ing a kernel on EFI machines because depending
on where the EFI systab was mapped, on at least one machine it isn't
present in the kexec mapping of the second kernel, leading to a triple
fault in the early code.

Fixing this properly requires significantly involved surgery and we
cannot allow ourselves to do that, that close to the merge window.

So disable the RSDP parsing code temporarily until it is fixed properly
in the next release cycle.

Signed-off-by: Borislav Petkov 
Cc: Ard Biesheuvel 
Cc: Baoquan He 
Cc: Chao Fan 
Cc: Dave Hansen 
Cc: "H. Peter Anvin" 
Cc: indou.takao@jp.fujitsu.com
Cc: Ingo Molnar 
Cc: Juergen Gross 
Cc: kasong@redhat.com
Cc: Kees Cook 
Cc: "Kirill A. Shutemov" 
Cc: msys.mizuma@gmail.com
Cc: Thomas Gleixner 
Cc: Tom Lendacky 
Cc: x86-ml 
Link: https://lkml.kernel.org/r/20190419141952.GE10324@zn.tnic

ACPICA: Rename nameseg compare macro for clarity

2019-04-09T08:08:28+00:00

ACPICA commit 92ec0935f27e217dff0b176fca02c2ec3d782bb5

ACPI_COMPARE_NAME changed to ACPI_COMPARE_NAMESEG
This clarifies (1) this is a compare on 4-byte namesegs, not
a generic compare. Improves understanding of the code.

Link: https://github.com/acpica/acpica/commit/92ec0935
Signed-off-by: Bob Moore 
Signed-off-by: Erik Schmauss 
Signed-off-by: Rafael J. Wysocki