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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-15 00:34:10 +08:00
linux-next/arch/nios2
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
..
boot nios2: dts: Fix tse_mac "max-frame-size" property 2023-06-13 16:59:46 -05:00
configs treewide: drop CONFIG_EMBEDDED 2023-08-21 13:46:25 -07:00
include Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
kernel nios2: Replace all non-returning strlcpy with strscpy 2023-06-13 16:51:49 -05:00
lib treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
mm nios2: fix flush_dcache_page() for usage from irq context 2023-08-24 16:20:31 -07:00
platform nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST 2021-10-27 09:29:07 -05:00
Kbuild nios2: move core-y in arch/nios2/Makefile to arch/nios2/Kbuild 2022-09-29 04:40:14 +09:00
Kconfig mm/fault: convert remaining simple cases to lock_mm_and_find_vma() 2023-06-24 14:12:58 -07:00
Kconfig.debug NIOS2: fix kconfig unmet dependency warning for SERIAL_CORE_CONSOLE 2021-09-24 08:49:39 -05:00
Makefile kbuild: remove head-y syntax 2022-10-02 18:06:03 +09:00