linux/tools/arch
Yu-cheng Yu 5790921bc1 x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map
Add the following CET instructions to the opcode map:

INCSSP:
    Increment Shadow Stack pointer (SSP).

RDSSP:
    Read SSP into a GPR.

SAVEPREVSSP:
    Use "previous ssp" token at top of current Shadow Stack (SHSTK) to
    create a "restore token" on the previous (outgoing) SHSTK.

RSTORSSP:
    Restore from a "restore token" to SSP.

WRSS:
    Write to kernel-mode SHSTK (kernel-mode instruction).

WRUSS:
    Write to user-mode SHSTK (kernel-mode instruction).

SETSSBSY:
    Verify the "supervisor token" pointed by MSR_IA32_PL0_SSP, set the
    token busy, and set then Shadow Stack pointer(SSP) to the value of
    MSR_IA32_PL0_SSP.

CLRSSBSY:
    Verify the "supervisor token" and clear its busy bit.

ENDBR64/ENDBR32:
    Mark a valid 64/32 bit control transfer endpoint.

Detailed information of CET instructions can be found in Intel Software
Developer's Manual.

Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lkml.kernel.org/r/20200204171425.28073-2-yu-cheng.yu@intel.com
2020-03-26 12:21:40 +01:00
..
alpha/include tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h 2019-03-28 14:31:56 -03:00
arc/include/uapi/asm tools arch uapi: Copy missing unistd.h headers for arc, hexagon and riscv 2019-05-02 16:00:20 -04:00
arm/include tools headers kvm: Sync kvm headers with the kernel sources 2019-12-02 12:54:13 -03:00
arm64/include tools headers kvm: Sync kvm headers with the kernel sources 2020-02-12 12:41:20 -03:00
csky/include/uapi/asm csky: Add support for libdw 2019-05-15 16:36:46 -03:00
h8300/include License cleanup: add SPDX license identifier to uapi header files with no license 2017-11-02 11:19:54 +01:00
hexagon/include/uapi/asm tools arch uapi: Copy missing unistd.h headers for arc, hexagon and riscv 2019-05-02 16:00:20 -04:00
ia64/include tools, perf: add and use optimized ring_buffer_{read_head, write_tail} helpers 2018-10-19 13:43:08 -07:00
microblaze/include/uapi/asm License cleanup: add SPDX license identifier to uapi header files with no license 2017-11-02 11:19:54 +01:00
mips/include tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h 2019-03-28 14:31:56 -03:00
parisc/include/uapi/asm tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h 2019-03-28 14:31:56 -03:00
powerpc/include tools headers kvm: Sync kvm headers with the kernel sources 2019-12-02 12:54:13 -03:00
riscv/include/uapi/asm riscv: Add support for libdw 2019-09-05 00:51:52 -07:00
s390/include tools headers kvm: Sync kvm headers with the kernel sources 2019-09-30 17:29:30 -03:00
sh/include License cleanup: add SPDX license identifier to uapi header files with no license 2017-11-02 11:19:54 +01:00
sparc/include tools headers UAPI: Update tools's copy of mman.h headers 2019-07-29 09:02:58 -03:00
x86 x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map 2020-03-26 12:21:40 +01:00
xtensa/include tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h 2019-03-28 14:31:56 -03:00