[tip:perf/core] x86/insn: perf tools: Add new memory protection keys instructions

tip-bot for Adrian Hunter
2015-09-08T14:38:35Z

Commit-ID: 978260cdbec3e34a3dfb2277ffc0aa1809457362
Gitweb: http://git.kernel.org/tip/978260cdbec3e34a3dfb2277ffc0aa1809457362
Author: Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Wed, 2 Sep 2015 15:15:30 +0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 4 Sep 2015 12:01:03 -0300

x86/insn: perf tools: Add new memory protection keys instructions

Add rdpkru and wrpkru to the op code map and the perf tools new
instructions test. In the case of the test, only the bytes can be
tested at the moment since binutils doesn't support the instructions
yet. To run the test:

$ tools/perf/perf test "x86 ins"
39: Test x86 instruction decoder - new instructions : Ok

Or to see the details:

$ tools/perf/perf test -v "x86 ins" 2>&1 | grep pkru

For information about rdpkru and wrpkru, refer the Intel SDM.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qiaowei Ren <qiaowei.ren@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1441196131-20632-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
arch/x86/lib/x86-opcode-map.txt | 2 +-
tools/perf/tests/insn-x86.c | 4 ++++
tools/perf/util/intel-pt-decoder/x86-opcode-map.txt | 2 +-
3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt
index f4f0451..5a9705e 100644
--- a/arch/x86/lib/x86-opcode-map.txt
+++ b/arch/x86/lib/x86-opcode-map.txt
@@ -885,7 +885,7 @@ GrpTable: Grp7
2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B)
3: LIDT Ms
4: SMSW Mw/Rv
-5:
+5: rdpkru (110),(11B) | wrpkru (111),(11B)
6: LMSW Ew
7: INVLPG Mb | SWAPGS (o64),(000),(11B) | RDTSCP (001),(11B)
EndTable
diff --git a/tools/perf/tests/insn-x86.c b/tools/perf/tests/insn-x86.c
index 0e126a0..5c49eec 100644
--- a/tools/perf/tests/insn-x86.c
+++ b/tools/perf/tests/insn-x86.c
@@ -17,11 +17,15 @@ struct test_data {

struct test_data test_data_32[] = {
#include "insn-x86-dat-32.c"
+ {{0x0f, 0x01, 0xee}, 3, 0, NULL, NULL, "0f 01 ee \trdpkru"},
+ {{0x0f, 0x01, 0xef}, 3, 0, NULL, NULL, "0f 01 ef \twrpkru"},
{{0}, 0, 0, NULL, NULL, NULL},
};

struct test_data test_data_64[] = {
#include "insn-x86-dat-64.c"
+ {{0x0f, 0x01, 0xee}, 3, 0, NULL, NULL, "0f 01 ee \trdpkru"},
+ {{0x0f, 0x01, 0xef}, 3, 0, NULL, NULL, "0f 01 ef \twrpkru"},
{{0}, 0, 0, NULL, NULL, NULL},
};

diff --git a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
index f4f0451..5a9705e 100644
--- a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
+++ b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
@@ -885,7 +885,7 @@ GrpTable: Grp7
2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B)
3: LIDT Ms
4: SMSW Mw/Rv
-5:
+5: rdpkru (110),(11B) | wrpkru (111),(11B)
6: LMSW Ew
7: INVLPG Mb | SWAPGS (o64),(000),(11B) | RDTSCP (001),(11B)
EndTable