linux/arch/sh/include
Linus Torvalds df57721f9a Add x86 shadow stack support
Convert IBT selftest to asm to fix objtool warning
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Merge tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 shadow stack support from Dave Hansen:
 "This is the long awaited x86 shadow stack support, part of Intel's
  Control-flow Enforcement Technology (CET).

  CET consists of two related security features: shadow stacks and
  indirect branch tracking. This series implements just the shadow stack
  part of this feature, and just for userspace.

  The main use case for shadow stack is providing protection against
  return oriented programming attacks. It works by maintaining a
  secondary (shadow) stack using a special memory type that has
  protections against modification. When executing a CALL instruction,
  the processor pushes the return address to both the normal stack and
  to the special permission shadow stack. Upon RET, the processor pops
  the shadow stack copy and compares it to the normal stack copy.

  For more information, refer to the links below for the earlier
  versions of this patch set"

Link: https://lore.kernel.org/lkml/20220130211838.8382-1-rick.p.edgecombe@intel.com/
Link: https://lore.kernel.org/lkml/20230613001108.3040476-1-rick.p.edgecombe@intel.com/

* tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits)
  x86/shstk: Change order of __user in type
  x86/ibt: Convert IBT selftest to asm
  x86/shstk: Don't retry vm_munmap() on -EINTR
  x86/kbuild: Fix Documentation/ reference
  x86/shstk: Move arch detail comment out of core mm
  x86/shstk: Add ARCH_SHSTK_STATUS
  x86/shstk: Add ARCH_SHSTK_UNLOCK
  x86: Add PTRACE interface for shadow stack
  selftests/x86: Add shadow stack test
  x86/cpufeatures: Enable CET CR4 bit for shadow stack
  x86/shstk: Wire in shadow stack interface
  x86: Expose thread features in /proc/$PID/status
  x86/shstk: Support WRSS for userspace
  x86/shstk: Introduce map_shadow_stack syscall
  x86/shstk: Check that signal frame is shadow stack mem
  x86/shstk: Check that SSP is aligned on sigreturn
  x86/shstk: Handle signals for shadow stack
  x86/shstk: Introduce routines modifying shstk
  x86/shstk: Handle thread shadow stack
  x86/shstk: Add user-mode shadow stack support
  ...
2023-08-31 12:20:12 -07:00
..
asm Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
cpu-common/cpu sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
cpu-sh2/cpu sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
cpu-sh2a/cpu sh: sh7269: Remove bogus SSU GPIO function definitions 2019-12-31 10:01:38 +01:00
cpu-sh3/cpu sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
cpu-sh4/cpu sh: dma: Drop incorrect SH_DMAC_BASE1 definition for SH4 2023-07-05 18:55:25 +02:00
cpu-sh4a/cpu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-common/mach sh: Avoid using IRQ0 on SH3 and SH4 2023-06-11 18:22:47 +02:00
mach-dreamcast/mach sh: Avoid using IRQ0 on SH3 and SH4 2023-06-11 18:22:47 +02:00
mach-ecovec24/mach sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
mach-kfr2r09/mach sh: include: convert to SPDX identifiers 2018-12-28 12:11:45 -08:00
mach-landisk/mach License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-migor/mach License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-sdk7786/mach License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-se/mach sh: Avoid using IRQ0 on SH3 and SH4 2023-06-11 18:22:47 +02:00
mach-sh03/mach License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach-x3proto/mach License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
uapi/asm sh: remove sh5 support 2020-06-01 14:48:52 -04:00