linux/arch/x86
Adrian Hunter b980be189c x86/insn: Add some Intel instructions to the opcode map
Add to the opcode map the following instructions:
        cldemote
        tpause
        umonitor
        umwait
        movdiri
        movdir64b
        enqcmd
        enqcmds
        encls
        enclu
        enclv
        pconfig
        wbnoinvd

For information about the instructions, refer Intel SDM May 2019
(325462-070US) and Intel Architecture Instruction Set Extensions
May 2019 (319433-037).

The instruction decoding can be tested using the perf tools'
"x86 instruction decoder - new instructions" test as folllows:

  $ perf test -v "new " 2>&1 | grep -i cldemote
  Decoded ok: 0f 1c 00                    cldemote (%eax)
  Decoded ok: 0f 1c 05 78 56 34 12        cldemote 0x12345678
  Decoded ok: 0f 1c 84 c8 78 56 34 12     cldemote 0x12345678(%eax,%ecx,8)
  Decoded ok: 0f 1c 00                    cldemote (%rax)
  Decoded ok: 41 0f 1c 00                 cldemote (%r8)
  Decoded ok: 0f 1c 04 25 78 56 34 12     cldemote 0x12345678
  Decoded ok: 0f 1c 84 c8 78 56 34 12     cldemote 0x12345678(%rax,%rcx,8)
  Decoded ok: 41 0f 1c 84 c8 78 56 34 12  cldemote 0x12345678(%r8,%rcx,8)
  $ perf test -v "new " 2>&1 | grep -i tpause
  Decoded ok: 66 0f ae f3                 tpause %ebx
  Decoded ok: 66 0f ae f3                 tpause %ebx
  Decoded ok: 66 41 0f ae f0              tpause %r8d
  $ perf test -v "new " 2>&1 | grep -i umonitor
  Decoded ok: 67 f3 0f ae f0              umonitor %ax
  Decoded ok: f3 0f ae f0                 umonitor %eax
  Decoded ok: 67 f3 0f ae f0              umonitor %eax
  Decoded ok: f3 0f ae f0                 umonitor %rax
  Decoded ok: 67 f3 41 0f ae f0           umonitor %r8d
  $ perf test -v "new " 2>&1 | grep -i umwait
  Decoded ok: f2 0f ae f0                 umwait %eax
  Decoded ok: f2 0f ae f0                 umwait %eax
  Decoded ok: f2 41 0f ae f0              umwait %r8d
  $ perf test -v "new " 2>&1 | grep -i movdiri
  Decoded ok: 0f 38 f9 03                 movdiri %eax,(%ebx)
  Decoded ok: 0f 38 f9 88 78 56 34 12     movdiri %ecx,0x12345678(%eax)
  Decoded ok: 48 0f 38 f9 03              movdiri %rax,(%rbx)
  Decoded ok: 48 0f 38 f9 88 78 56 34 12  movdiri %rcx,0x12345678(%rax)
  $ perf test -v "new " 2>&1 | grep -i movdir64b
  Decoded ok: 66 0f 38 f8 18              movdir64b (%eax),%ebx
  Decoded ok: 66 0f 38 f8 88 78 56 34 12  movdir64b 0x12345678(%eax),%ecx
  Decoded ok: 67 66 0f 38 f8 1c           movdir64b (%si),%bx
  Decoded ok: 67 66 0f 38 f8 8c 34 12     movdir64b 0x1234(%si),%cx
  Decoded ok: 66 0f 38 f8 18              movdir64b (%rax),%rbx
  Decoded ok: 66 0f 38 f8 88 78 56 34 12  movdir64b 0x12345678(%rax),%rcx
  Decoded ok: 67 66 0f 38 f8 18           movdir64b (%eax),%ebx
  Decoded ok: 67 66 0f 38 f8 88 78 56 34 12       movdir64b 0x12345678(%eax),%ecx
  $ perf test -v "new " 2>&1 | grep -i enqcmd
  Decoded ok: f2 0f 38 f8 18              enqcmd (%eax),%ebx
  Decoded ok: f2 0f 38 f8 88 78 56 34 12  enqcmd 0x12345678(%eax),%ecx
  Decoded ok: 67 f2 0f 38 f8 1c           enqcmd (%si),%bx
  Decoded ok: 67 f2 0f 38 f8 8c 34 12     enqcmd 0x1234(%si),%cx
  Decoded ok: f3 0f 38 f8 18              enqcmds (%eax),%ebx
  Decoded ok: f3 0f 38 f8 88 78 56 34 12  enqcmds 0x12345678(%eax),%ecx
  Decoded ok: 67 f3 0f 38 f8 1c           enqcmds (%si),%bx
  Decoded ok: 67 f3 0f 38 f8 8c 34 12     enqcmds 0x1234(%si),%cx
  Decoded ok: f2 0f 38 f8 18              enqcmd (%rax),%rbx
  Decoded ok: f2 0f 38 f8 88 78 56 34 12  enqcmd 0x12345678(%rax),%rcx
  Decoded ok: 67 f2 0f 38 f8 18           enqcmd (%eax),%ebx
  Decoded ok: 67 f2 0f 38 f8 88 78 56 34 12       enqcmd 0x12345678(%eax),%ecx
  Decoded ok: f3 0f 38 f8 18              enqcmds (%rax),%rbx
  Decoded ok: f3 0f 38 f8 88 78 56 34 12  enqcmds 0x12345678(%rax),%rcx
  Decoded ok: 67 f3 0f 38 f8 18           enqcmds (%eax),%ebx
  Decoded ok: 67 f3 0f 38 f8 88 78 56 34 12       enqcmds 0x12345678(%eax),%ecx
  $ perf test -v "new " 2>&1 | grep -i enqcmds
  Decoded ok: f3 0f 38 f8 18              enqcmds (%eax),%ebx
  Decoded ok: f3 0f 38 f8 88 78 56 34 12  enqcmds 0x12345678(%eax),%ecx
  Decoded ok: 67 f3 0f 38 f8 1c           enqcmds (%si),%bx
  Decoded ok: 67 f3 0f 38 f8 8c 34 12     enqcmds 0x1234(%si),%cx
  Decoded ok: f3 0f 38 f8 18              enqcmds (%rax),%rbx
  Decoded ok: f3 0f 38 f8 88 78 56 34 12  enqcmds 0x12345678(%rax),%rcx
  Decoded ok: 67 f3 0f 38 f8 18           enqcmds (%eax),%ebx
  Decoded ok: 67 f3 0f 38 f8 88 78 56 34 12       enqcmds 0x12345678(%eax),%ecx
  $ perf test -v "new " 2>&1 | grep -i encls
  Decoded ok: 0f 01 cf                    encls
  Decoded ok: 0f 01 cf                    encls
  $ perf test -v "new " 2>&1 | grep -i enclu
  Decoded ok: 0f 01 d7                    enclu
  Decoded ok: 0f 01 d7                    enclu
  $ perf test -v "new " 2>&1 | grep -i enclv
  Decoded ok: 0f 01 c0                    enclv
  Decoded ok: 0f 01 c0                    enclv
  $ perf test -v "new " 2>&1 | grep -i pconfig
  Decoded ok: 0f 01 c5                    pconfig
  Decoded ok: 0f 01 c5                    pconfig
  $ perf test -v "new " 2>&1 | grep -i wbnoinvd
  Decoded ok: f3 0f 09                    wbnoinvd
  Decoded ok: f3 0f 09                    wbnoinvd

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20191115135447.6519-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-11-18 18:54:45 -03:00
..
boot x86, efi: Never relocate kernel below lowest acceptable address 2019-10-31 09:40:19 +01:00
configs x86/defconfigs: Remove useless UEVENT_HELPER_PATH 2019-06-21 19:22:08 +02:00
crypto crypto: x86/aes-ni - use AES library instead of single-use AES cipher 2019-09-09 23:48:41 +10:00
entry Kbuild updates for v5.4 2019-09-20 08:36:47 -07:00
events perf/x86/amd: Remove set but not used variable 'active' 2019-11-11 08:31:55 +01:00
hyperv x86/hyperv: Make vapic support x2apic mode 2019-10-15 10:57:09 +02:00
ia32 clone: fix CLONE_PIDFD support 2019-07-14 20:36:12 +02:00
include Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-10-27 07:14:40 -04:00
kernel x86/tsc: Respect tsc command line paraemeter for clocksource_tsc_early 2019-11-05 01:24:56 +01:00
kvm KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active 2019-10-31 12:13:44 +01:00
lib x86/insn: Add some Intel instructions to the opcode map 2019-11-18 18:54:45 -03:00
math-emu x86/fpu/math-emu: Address fallthrough warnings 2019-08-12 20:35:05 +02:00
mm Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
net bpf: fix x64 JIT code generation for jmp to 1st insn 2019-08-01 13:12:09 -07:00
oprofile
pci dma-mapping updates for 5.4: 2019-09-19 13:27:23 -07:00
platform efi/x86: Do not clean dummy variable in kexec path 2019-10-07 15:24:36 +02:00
power Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:04:39 -07:00
purgatory Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-28 13:37:41 -07:00
ras
realmode x86/realmode: Remove trampoline_status 2019-07-22 11:30:18 +02:00
tools Merge branch 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 17:34:44 -07:00
um um: Use real DMA barriers 2019-09-15 21:37:14 +02:00
video
xen xen: patch for 5.4-rc5 2019-10-26 06:32:12 -04:00
.gitignore
Kbuild
Kconfig Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
Kconfig.cpu x86/cpu: Create Zhaoxin processors architecture support file 2019-06-22 11:45:57 +02:00
Kconfig.debug x86, perf: Fix the dependency of the x86 insn decoder selftest 2019-09-02 20:05:58 +02:00
Makefile x86/build: Add -Wnoaddress-of-packed-member to REALMODE_CFLAGS, to silence GCC9 build warning 2019-08-28 17:31:31 +02:00
Makefile_32.cpu
Makefile.um