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| Filename | Latest commit message | Latest commit date |
|---|---|---|
c1efcafe88
[ Upstream commit b980be189c9badba50634671e2303e92bf28e35a ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.