linux/arch/mips
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
..
alchemy mmc: au1xmmc: force non-modular build and remove symbol_get usage 2023-08-02 11:17:35 -07:00
ar7 mips: ar7: include linux/gpio/driver.h 2023-03-10 13:40:18 +02:00
ath25 MIPS: ath25: Constify static irq_domain_ops 2022-02-22 09:39:03 +01:00
ath79 MIPS: ath79: remove obsolete ATH79_DEV_* configs 2023-03-17 10:28:04 +01:00
bcm47xx mips: implement the new page table range API 2023-08-24 16:20:22 -07:00
bcm63xx MIPS: BCM63xx: Add check for NULL for clk in clk_enable 2022-12-09 23:37:06 +01:00
bmips mips: update a reference to a moved Arm Document 2023-06-13 03:47:20 -06:00
boot MIPS: dts: add missing space before { 2023-07-06 13:55:43 +02:00
cavium-octeon range.h: Move resource API and constant to respective files 2023-08-18 10:19:00 -07:00
cobalt
configs treewide: drop CONFIG_EMBEDDED 2023-08-21 13:46:25 -07:00
crypto crypto: Kconfig - simplify cipher entries 2022-08-26 18:50:43 +08:00
dec MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
fw MIPS: fw: Allow firmware to pass a empty env 2023-04-12 15:07:36 +02:00
generic mips: ingenic: Enable EXT/2 divider on JZ4750/55/60 if EXT is 24 MHz 2023-06-09 09:54:17 +02:00
include Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
ingenic
jazz MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
kernel - An extensive rework of kexec and crash Kconfig from Eric DeVolder 2023-08-29 14:53:51 -07:00
kvm MIPS: kvm: Fix build error with KVM_MIPS_DEBUG_COP0_COUNTERS enabled 2023-07-07 14:43:01 +02:00
lantiq MIPS: vpe-mt: drop physical_memsize 2023-02-20 15:11:01 +01:00
lib MIPS: Simplify __bswapdi2() and __bswapsi2() 2022-09-30 16:50:00 +02:00
loongson2ef MIPS: loongson2ef: Add missing break in cs5536_isa 2023-04-12 15:12:24 +02:00
loongson32 - added support for TP-Link HC220 G5 v1 2023-06-29 15:01:51 -07:00
loongson64 MIPS: SMP_CPS: Switch to hotplug core state synchronization 2023-05-15 13:44:58 +02:00
math-emu MIPS: Fix comment typo 2022-09-12 15:33:24 +02:00
mm mips: implement the new page table range API 2023-08-24 16:20:22 -07:00
mti-malta MIPS: Remove deprecated CONFIG_MIPS_CMP 2023-04-12 15:01:09 +02:00
n64
net bpf, mips: Implement R4000 workarounds for JIT 2023-02-28 14:52:55 +01:00
pci swiotlb: make io_tlb_default_mem local to swiotlb.c 2023-08-01 18:02:09 +02:00
pic32 MIPS: pic32: treat port as signed integer 2022-11-11 15:53:58 +01:00
power
ralink mips: ralink: match all supported system controller compatible strings 2023-06-23 15:00:37 +02:00
rb532 MIPS: rb532: move GPIOD definition into C-files 2022-03-30 20:26:26 +02:00
sgi-ip22 driver core: make struct bus_type.uevent() take a const * 2023-01-27 13:45:52 +01:00
sgi-ip27 MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create() 2022-09-19 16:33:27 +02:00
sgi-ip30 MIPS: SGI-IP30: Fix platform-device leak in bridge_platform_create() 2022-09-19 16:32:54 +02:00
sgi-ip32 MIPS: Allow modules to set board_be_handler 2021-11-09 16:07:26 +01:00
sibyte mips: Fix spacing issue 2023-06-09 09:49:59 +02:00
sni MIPS: sni: Fix the build 2021-10-18 18:09:54 +02:00
tools MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
txx9 MIPS: fix typos in comments 2022-05-04 22:22:59 +02:00
vdso vdso: Improve cmd_vdso_check to check all dynamic relocations 2023-03-21 21:15:34 +01:00
Kbuild kbuild: remove --include-dir MAKEFLAG from top Makefile 2023-02-05 18:51:22 +09:00
Kbuild.platforms MIPS: sibyte: Remove unused config option SIBYTE_BCM1x55 2023-03-17 10:27:08 +01:00
Kconfig mips/kexec: refactor for kernel/Kconfig.kexec 2023-08-18 10:18:53 -07:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile - fixes for KVM 2023-07-09 10:02:49 -07:00
Makefile.postlink kbuild: remove --include-dir MAKEFLAG from top Makefile 2023-02-05 18:51:22 +09:00