Messages in this thread Patch in this message | | | From | Adrian Hunter <> | Subject | [PATCH 3/6] perf tests: Add misc instructions to x86 instruction decoder test | Date | Thu, 2 Dec 2021 11:50:26 +0200 |
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x86 instruction decoder is used for both kernel instructions and user space instructions (e.g. uprobes, perf tools Intel PT), so it is good to update it with new instructions.
Add instructions to x86 instruction decoder test:
User Interrupt
clui senduipi stui testui uiret
Prediction history reset
hreset
Serialize instruction execution
serialize
TSX suspend load address tracking
xresldtrk xsusldtrk
A subsequent patch adds the instructions to the instruction decoder.
Reference: Intel Architecture Instruction Set Extensions and Future Features Programming Reference May 2021 Document Number: 319433-044
Example:
$ perf test -v "x86 instruction decoder" |& grep -i hreset Failed to decode length (4 vs expected 6): f3 0f 3a f0 c0 00 hreset $0x0 Failed to decode length (4 vs expected 6): f3 0f 3a f0 c0 00 hreset $0x0
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- tools/perf/arch/x86/tests/insn-x86-dat-32.c | 8 +++++++ tools/perf/arch/x86/tests/insn-x86-dat-64.c | 20 ++++++++++++++++++ tools/perf/arch/x86/tests/insn-x86-dat-src.c | 22 ++++++++++++++++++++ 3 files changed, 50 insertions(+)
diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-32.c b/tools/perf/arch/x86/tests/insn-x86-dat-32.c index 9708ae892061..79e2050cd1c2 100644 --- a/tools/perf/arch/x86/tests/insn-x86-dat-32.c +++ b/tools/perf/arch/x86/tests/insn-x86-dat-32.c @@ -2197,6 +2197,14 @@ "3e f2 ff 25 78 56 34 12 \tnotrack bnd jmp *0x12345678",}, {{0x3e, 0xf2, 0xff, 0xa4, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "jmp", "indirect", "3e f2 ff a4 c8 78 56 34 12 \tnotrack bnd jmp *0x12345678(%eax,%ecx,8)",}, +{{0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x00, }, 6, 0, "", "", +"f3 0f 3a f0 c0 00 \threset $0x0",}, +{{0x0f, 0x01, 0xe8, }, 3, 0, "", "", +"0f 01 e8 \tserialize ",}, +{{0xf2, 0x0f, 0x01, 0xe9, }, 4, 0, "", "", +"f2 0f 01 e9 \txresldtrk ",}, +{{0xf2, 0x0f, 0x01, 0xe8, }, 4, 0, "", "", +"f2 0f 01 e8 \txsusldtrk ",}, {{0x0f, 0x01, 0xcf, }, 3, 0, "", "", "0f 01 cf \tencls ",}, {{0x0f, 0x01, 0xd7, }, 3, 0, "", "", diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-64.c b/tools/perf/arch/x86/tests/insn-x86-dat-64.c index 3548565a1cc5..b2d0ba45262b 100644 --- a/tools/perf/arch/x86/tests/insn-x86-dat-64.c +++ b/tools/perf/arch/x86/tests/insn-x86-dat-64.c @@ -2495,6 +2495,26 @@ "c4 e2 7b 49 c0 \ttilezero %tmm0",}, {{0xc4, 0xe2, 0x7b, 0x49, 0xf8, }, 5, 0, "", "", "c4 e2 7b 49 f8 \ttilezero %tmm7",}, +{{0xf3, 0x0f, 0x01, 0xee, }, 4, 0, "", "", +"f3 0f 01 ee \tclui ",}, +{{0xf3, 0x0f, 0xc7, 0xf0, }, 4, 0, "", "", +"f3 0f c7 f0 \tsenduipi %rax",}, +{{0xf3, 0x41, 0x0f, 0xc7, 0xf0, }, 5, 0, "", "", +"f3 41 0f c7 f0 \tsenduipi %r8",}, +{{0xf3, 0x0f, 0x01, 0xef, }, 4, 0, "", "", +"f3 0f 01 ef \tstui ",}, +{{0xf3, 0x0f, 0x01, 0xed, }, 4, 0, "", "", +"f3 0f 01 ed \ttestui ",}, +{{0xf3, 0x0f, 0x01, 0xec, }, 4, 0, "", "", +"f3 0f 01 ec \tuiret ",}, +{{0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x00, }, 6, 0, "", "", +"f3 0f 3a f0 c0 00 \threset $0x0",}, +{{0x0f, 0x01, 0xe8, }, 3, 0, "", "", +"0f 01 e8 \tserialize ",}, +{{0xf2, 0x0f, 0x01, 0xe9, }, 4, 0, "", "", +"f2 0f 01 e9 \txresldtrk ",}, +{{0xf2, 0x0f, 0x01, 0xe8, }, 4, 0, "", "", +"f2 0f 01 e8 \txsusldtrk ",}, {{0x0f, 0x01, 0xcf, }, 3, 0, "", "", "0f 01 cf \tencls ",}, {{0x0f, 0x01, 0xd7, }, 3, 0, "", "", diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-src.c b/tools/perf/arch/x86/tests/insn-x86-dat-src.c index 7906f7b2ffeb..425db6a1b580 100644 --- a/tools/perf/arch/x86/tests/insn-x86-dat-src.c +++ b/tools/perf/arch/x86/tests/insn-x86-dat-src.c @@ -1931,6 +1931,15 @@ int main(void) asm volatile("tilezero %tmm0"); asm volatile("tilezero %tmm7"); + /* User Interrupt */ + + asm volatile("clui"); + asm volatile("senduipi %rax"); + asm volatile("senduipi %r8"); + asm volatile("stui"); + asm volatile("testui"); + asm volatile("uiret"); + #else /* #ifdef __x86_64__ */ /* bound r32, mem (same op code as EVEX prefix) */ @@ -3693,6 +3702,19 @@ int main(void) #endif /* #ifndef __x86_64__ */ + /* Prediction history reset */ + + asm volatile("hreset $0"); + + /* Serialize instruction execution */ + + asm volatile("serialize"); + + /* TSX suspend load address tracking */ + + asm volatile("xresldtrk"); + asm volatile("xsusldtrk"); + /* SGX */ asm volatile("encls"); -- 2.25.1
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