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SubjectRE: [PATCH V2 6/7] x86/insn: perf tools: Add new memory protection keys instructions
Date
> From: Adrian Hunter [mailto:adrian.hunter@intel.com]
>
> 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.

Looks very nice to me.


Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>


Thanks!

>
> Signed-off-by: Adrian Hunter <adrian.hunter@intel.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 f4f0451a301e..5a9705ed9139 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 0e126a099874..5c49eec81349 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 f4f0451a301e..5a9705ed9139 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
> --
> 1.9.1

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