* [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv
@ 2024-04-22 8:08 Shenlin Liang
2024-04-22 8:08 ` [PATCH v3 1/2] RISCV: KVM: add tracepoints for entry and exit events Shenlin Liang
` (4 more replies)
0 siblings, 5 replies; 13+ messages in thread
From: Shenlin Liang @ 2024-04-22 8:08 UTC (permalink / raw
To: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, namhyung,
mark.rutland, alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
Cc: Shenlin Liang
'perf kvm stat report/record' generates a statistical analysis of KVM
events and can be used to analyze guest exit reasons. This patch tries
to add stat support on riscv.
Map the return value of trace_kvm_exit() to the specific cause of the
exception, and export it to userspace.
It records on two available KVM tracepoints for riscv: "kvm:kvm_entry"
and "kvm:kvm_exit", and reports statistical data which includes events
handles time, samples, and so on.
Cross compiling perf in X86 environment may encounter issues with missing
libraries and tools. Suggest compiling nativly in RISC-V environment
Simple tests go below:
# ./perf kvm record -e "kvm:kvm_entry" -e "kvm:kvm_exit"
Lowering default frequency rate from 4000 to 2500.
Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate.
[ perf record: Woken up 18 times to write data ]
[ perf record: Captured and wrote 5.433 MB perf.data.guest (62519 samples)
# ./perf kvm report
31K kvm:kvm_entry
31K kvm:kvm_exit
# ./perf kvm stat record -a
[ perf record: Woken up 3 times to write data ]
[ perf record: Captured and wrote 8.502 MB perf.data.guest (99338 samples) ]
# ./perf kvm stat report --event=vmexit
Event name Samples Sample% Time (ns) Time% Max Time (ns) Min Time (ns) Mean Time (ns)
STORE_GUEST_PAGE_FAULT 26968 54.00% 2003031800 40.00% 3361400 27600 74274
LOAD_GUEST_PAGE_FAULT 17645 35.00% 1153338100 23.00% 2513400 30800 65363
VIRTUAL_INST_FAULT 1247 2.00% 340820800 6.00% 1190800 43300 273312
INST_GUEST_PAGE_FAULT 1128 2.00% 340645800 6.00% 2123200 30200 301990
SUPERVISOR_SYSCALL 1019 2.00% 245989900 4.00% 1851500 29300 241403
LOAD_ACCESS 986 1.00% 671556200 13.00% 4180200 100700 681091
INST_ACCESS 655 1.00% 170054800 3.00% 1808300 54600 259625
HYPERVISOR_SYSCALL 21 0.00% 4276400 0.00% 716500 116000 203638
Changes from v1->v2:
- Rebased on Linux 6.9-rc3.
Changes from v2->v3:
- Add the missing assignment for 'vcpu_id_str' in patch 2.
- Remove parentheses that cause compilation errors
Shenlin Liang (2):
RISCV: KVM: add tracepoints for entry and exit events
perf kvm/riscv: Port perf kvm stat to RISC-V
arch/riscv/kvm/trace.h | 67 ++++++++++++++++
arch/riscv/kvm/vcpu.c | 7 ++
tools/perf/arch/riscv/Makefile | 1 +
tools/perf/arch/riscv/util/Build | 1 +
tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
.../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
6 files changed, 190 insertions(+)
create mode 100644 arch/riscv/kvm/trace.h
create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
--
2.37.2
_______________________________________________
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linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v3 1/2] RISCV: KVM: add tracepoints for entry and exit events
2024-04-22 8:08 [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
@ 2024-04-22 8:08 ` Shenlin Liang
2024-04-22 8:08 ` [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V Shenlin Liang
` (3 subsequent siblings)
4 siblings, 0 replies; 13+ messages in thread
From: Shenlin Liang @ 2024-04-22 8:08 UTC (permalink / raw
To: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, namhyung,
mark.rutland, alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
Cc: Shenlin Liang
Like other architectures, RISCV KVM also needs to add these event
tracepoints to count the number of times kvm guest entry/exit.
Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
---
arch/riscv/kvm/trace.h | 67 ++++++++++++++++++++++++++++++++++++++++++
arch/riscv/kvm/vcpu.c | 7 +++++
2 files changed, 74 insertions(+)
create mode 100644 arch/riscv/kvm/trace.h
diff --git a/arch/riscv/kvm/trace.h b/arch/riscv/kvm/trace.h
new file mode 100644
index 000000000000..3d54175d805c
--- /dev/null
+++ b/arch/riscv/kvm/trace.h
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tracepoints for RISC-V KVM
+ *
+ * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
+ *
+ */
+#if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_KVM_H
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM kvm
+
+TRACE_EVENT(kvm_entry,
+ TP_PROTO(struct kvm_vcpu *vcpu),
+ TP_ARGS(vcpu),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, pc)
+ ),
+
+ TP_fast_assign(
+ __entry->pc = vcpu->arch.guest_context.sepc;
+ ),
+
+ TP_printk("PC: 0x016%lx", __entry->pc)
+);
+
+TRACE_EVENT(kvm_exit,
+ TP_PROTO(struct kvm_cpu_trap *trap),
+ TP_ARGS(trap),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, sepc)
+ __field(unsigned long, scause)
+ __field(unsigned long, stval)
+ __field(unsigned long, htval)
+ __field(unsigned long, htinst)
+ ),
+
+ TP_fast_assign(
+ __entry->sepc = trap->sepc;
+ __entry->scause = trap->scause;
+ __entry->stval = trap->stval;
+ __entry->htval = trap->htval;
+ __entry->htinst = trap->htinst;
+ ),
+
+ TP_printk("SEPC:0x%lx, SCAUSE:0x%lx, STVAL:0x%lx, HTVAL:0x%lx, HTINST:0x%lx",
+ __entry->sepc,
+ __entry->scause,
+ __entry->stval,
+ __entry->htval,
+ __entry->htinst)
+);
+
+#endif /* _TRACE_RSICV_KVM_H */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
index b5ca9f2e98ac..f4e27004ceb8 100644
--- a/arch/riscv/kvm/vcpu.c
+++ b/arch/riscv/kvm/vcpu.c
@@ -21,6 +21,9 @@
#include <asm/cacheflush.h>
#include <asm/kvm_vcpu_vector.h>
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
const struct _kvm_stats_desc kvm_vcpu_stats_desc[] = {
KVM_GENERIC_VCPU_STATS(),
STATS_DESC_COUNTER(VCPU, ecall_exit_stat),
@@ -782,6 +785,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
*/
kvm_riscv_local_tlb_sanitize(vcpu);
+ trace_kvm_entry(vcpu);
+
guest_timing_enter_irqoff();
kvm_riscv_vcpu_enter_exit(vcpu);
@@ -820,6 +825,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
local_irq_enable();
+ trace_kvm_exit(&trap);
+
preempt_enable();
kvm_vcpu_srcu_read_lock(vcpu);
--
2.37.2
_______________________________________________
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linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V
2024-04-22 8:08 [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
2024-04-22 8:08 ` [PATCH v3 1/2] RISCV: KVM: add tracepoints for entry and exit events Shenlin Liang
@ 2024-04-22 8:08 ` Shenlin Liang
2024-05-04 0:25 ` Atish Patra
` (2 more replies)
2024-04-29 6:13 ` [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
` (2 subsequent siblings)
4 siblings, 3 replies; 13+ messages in thread
From: Shenlin Liang @ 2024-04-22 8:08 UTC (permalink / raw
To: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, namhyung,
mark.rutland, alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
Cc: Shenlin Liang
'perf kvm stat report/record' generates a statistical analysis of KVM
events and can be used to analyze guest exit reasons.
"report" reports statistical analysis of guest exit events.
To record kvm events on the host:
# perf kvm stat record -a
To report kvm VM EXIT events:
# perf kvm stat report --event=vmexit
Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com>
---
tools/perf/arch/riscv/Makefile | 1 +
tools/perf/arch/riscv/util/Build | 1 +
tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
.../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
4 files changed, 116 insertions(+)
create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
diff --git a/tools/perf/arch/riscv/Makefile b/tools/perf/arch/riscv/Makefile
index a8d25d005207..e1e445615536 100644
--- a/tools/perf/arch/riscv/Makefile
+++ b/tools/perf/arch/riscv/Makefile
@@ -3,3 +3,4 @@ PERF_HAVE_DWARF_REGS := 1
endif
PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
PERF_HAVE_JITDUMP := 1
+HAVE_KVM_STAT_SUPPORT := 1
\ No newline at end of file
diff --git a/tools/perf/arch/riscv/util/Build b/tools/perf/arch/riscv/util/Build
index 603dbb5ae4dc..d72b04f8d32b 100644
--- a/tools/perf/arch/riscv/util/Build
+++ b/tools/perf/arch/riscv/util/Build
@@ -1,5 +1,6 @@
perf-y += perf_regs.o
perf-y += header.o
+perf-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o
perf-$(CONFIG_DWARF) += dwarf-regs.o
perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
diff --git a/tools/perf/arch/riscv/util/kvm-stat.c b/tools/perf/arch/riscv/util/kvm-stat.c
new file mode 100644
index 000000000000..58813049fc45
--- /dev/null
+++ b/tools/perf/arch/riscv/util/kvm-stat.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Arch specific functions for perf kvm stat.
+ *
+ * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
+ *
+ */
+#include <errno.h>
+#include <memory.h>
+#include "../../../util/evsel.h"
+#include "../../../util/kvm-stat.h"
+#include "riscv_exception_types.h"
+#include "debug.h"
+
+define_exit_reasons_table(riscv_exit_reasons, kvm_riscv_exception_class);
+
+const char *vcpu_id_str = "id";
+const char *kvm_exit_reason = "scause";
+const char *kvm_entry_trace = "kvm:kvm_entry";
+const char *kvm_exit_trace = "kvm:kvm_exit";
+
+const char *kvm_events_tp[] = {
+ "kvm:kvm_entry",
+ "kvm:kvm_exit",
+ NULL,
+};
+
+static void event_get_key(struct evsel *evsel,
+ struct perf_sample *sample,
+ struct event_key *key)
+{
+ key->info = 0;
+ key->key = evsel__intval(evsel, sample, kvm_exit_reason);
+ key->key = (int)key->key;
+ key->exit_reasons = riscv_exit_reasons;
+}
+
+static bool event_begin(struct evsel *evsel,
+ struct perf_sample *sample __maybe_unused,
+ struct event_key *key __maybe_unused)
+{
+ return evsel__name_is(evsel, kvm_entry_trace);
+}
+
+static bool event_end(struct evsel *evsel,
+ struct perf_sample *sample,
+ struct event_key *key)
+{
+ if (evsel__name_is(evsel, kvm_exit_trace)) {
+ event_get_key(evsel, sample, key);
+ return true;
+ }
+ return false;
+}
+
+static struct kvm_events_ops exit_events = {
+ .is_begin_event = event_begin,
+ .is_end_event = event_end,
+ .decode_key = exit_event_decode_key,
+ .name = "VM-EXIT"
+};
+
+struct kvm_reg_events_ops kvm_reg_events_ops[] = {
+ {
+ .name = "vmexit",
+ .ops = &exit_events,
+ },
+ { NULL, NULL },
+};
+
+const char * const kvm_skip_events[] = {
+ NULL,
+};
+
+int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused)
+{
+ kvm->exit_reasons_isa = "riscv64";
+ return 0;
+}
diff --git a/tools/perf/arch/riscv/util/riscv_exception_types.h b/tools/perf/arch/riscv/util/riscv_exception_types.h
new file mode 100644
index 000000000000..c49b8fa5e847
--- /dev/null
+++ b/tools/perf/arch/riscv/util/riscv_exception_types.h
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef ARCH_PERF_RISCV_EXCEPTION_TYPES_H
+#define ARCH_PERF_RISCV_EXCEPTION_TYPES_H
+
+#define EXC_INST_MISALIGNED 0
+#define EXC_INST_ACCESS 1
+#define EXC_INST_ILLEGAL 2
+#define EXC_BREAKPOINT 3
+#define EXC_LOAD_MISALIGNED 4
+#define EXC_LOAD_ACCESS 5
+#define EXC_STORE_MISALIGNED 6
+#define EXC_STORE_ACCESS 7
+#define EXC_SYSCALL 8
+#define EXC_HYPERVISOR_SYSCALL 9
+#define EXC_SUPERVISOR_SYSCALL 10
+#define EXC_INST_PAGE_FAULT 12
+#define EXC_LOAD_PAGE_FAULT 13
+#define EXC_STORE_PAGE_FAULT 15
+#define EXC_INST_GUEST_PAGE_FAULT 20
+#define EXC_LOAD_GUEST_PAGE_FAULT 21
+#define EXC_VIRTUAL_INST_FAULT 22
+#define EXC_STORE_GUEST_PAGE_FAULT 23
+
+#define EXC(x) {EXC_##x, #x }
+
+#define kvm_riscv_exception_class \
+ EXC(INST_MISALIGNED), EXC(INST_ACCESS), EXC(INST_ILLEGAL), \
+ EXC(BREAKPOINT), EXC(LOAD_MISALIGNED), EXC(LOAD_ACCESS), \
+ EXC(STORE_MISALIGNED), EXC(STORE_ACCESS), EXC(SYSCALL), \
+ EXC(HYPERVISOR_SYSCALL), EXC(SUPERVISOR_SYSCALL), \
+ EXC(INST_PAGE_FAULT), EXC(LOAD_PAGE_FAULT), EXC(STORE_PAGE_FAULT), \
+ EXC(INST_GUEST_PAGE_FAULT), EXC(LOAD_GUEST_PAGE_FAULT), \
+ EXC(VIRTUAL_INST_FAULT), EXC(STORE_GUEST_PAGE_FAULT)
+
+#endif /* ARCH_PERF_RISCV_EXCEPTION_TYPES_H */
--
2.37.2
_______________________________________________
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linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv
2024-04-22 8:08 [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
2024-04-22 8:08 ` [PATCH v3 1/2] RISCV: KVM: add tracepoints for entry and exit events Shenlin Liang
2024-04-22 8:08 ` [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V Shenlin Liang
@ 2024-04-29 6:13 ` Shenlin Liang
2024-04-29 18:50 ` Arnaldo Carvalho de Melo
2024-05-04 0:21 ` Atish Patra
2024-06-06 9:20 ` Anup Patel
4 siblings, 1 reply; 13+ messages in thread
From: Shenlin Liang @ 2024-04-29 6:13 UTC (permalink / raw
To: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, namhyung,
mark.rutland, alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
Gentle ping...
>
> 'perf kvm stat report/record' generates a statistical analysis of KVM
> events and can be used to analyze guest exit reasons. This patch tries
> to add stat support on riscv.
>
> Map the return value of trace_kvm_exit() to the specific cause of the
> exception, and export it to userspace.
>
> It records on two available KVM tracepoints for riscv: "kvm:kvm_entry"
> and "kvm:kvm_exit", and reports statistical data which includes events
> handles time, samples, and so on.
>
> Cross compiling perf in X86 environment may encounter issues with missing
> libraries and tools. Suggest compiling nativly in RISC-V environment
>
> Simple tests go below:
>
> # ./perf kvm record -e "kvm:kvm_entry" -e "kvm:kvm_exit"
> Lowering default frequency rate from 4000 to 2500.
> Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate.
> [ perf record: Woken up 18 times to write data ]
> [ perf record: Captured and wrote 5.433 MB perf.data.guest (62519 samples)
>
> # ./perf kvm report
> 31K kvm:kvm_entry
> 31K kvm:kvm_exit
>
> # ./perf kvm stat record -a
> [ perf record: Woken up 3 times to write data ]
> [ perf record: Captured and wrote 8.502 MB perf.data.guest (99338 samples) ]
>
> # ./perf kvm stat report --event=vmexit
> Event name Samples Sample% Time (ns) Time% Max Time (ns) Min Time (ns) Mean Time (ns)
> STORE_GUEST_PAGE_FAULT 26968 54.00% 2003031800 40.00% 3361400 27600 74274
> LOAD_GUEST_PAGE_FAULT 17645 35.00% 1153338100 23.00% 2513400 30800 65363
> VIRTUAL_INST_FAULT 1247 2.00% 340820800 6.00% 1190800 43300 273312
> INST_GUEST_PAGE_FAULT 1128 2.00% 340645800 6.00% 2123200 30200 301990
> SUPERVISOR_SYSCALL 1019 2.00% 245989900 4.00% 1851500 29300 241403
> LOAD_ACCESS 986 1.00% 671556200 13.00% 4180200 100700 681091
> INST_ACCESS 655 1.00% 170054800 3.00% 1808300 54600 259625
> HYPERVISOR_SYSCALL 21 0.00% 4276400 0.00% 716500 116000 203638
>
> Changes from v1->v2:
> - Rebased on Linux 6.9-rc3.
>
> Changes from v2->v3:
> - Add the missing assignment for 'vcpu_id_str' in patch 2.
> - Remove parentheses that cause compilation errors
>
> Shenlin Liang (2):
> RISCV: KVM: add tracepoints for entry and exit events
> perf kvm/riscv: Port perf kvm stat to RISC-V
>
> arch/riscv/kvm/trace.h | 67 ++++++++++++++++
> arch/riscv/kvm/vcpu.c | 7 ++
> tools/perf/arch/riscv/Makefile | 1 +
> tools/perf/arch/riscv/util/Build | 1 +
> tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> 6 files changed, 190 insertions(+)
> create mode 100644 arch/riscv/kvm/trace.h
> create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
>
> --
> 2.37.2
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv
2024-04-29 6:13 ` [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
@ 2024-04-29 18:50 ` Arnaldo Carvalho de Melo
0 siblings, 0 replies; 13+ messages in thread
From: Arnaldo Carvalho de Melo @ 2024-04-29 18:50 UTC (permalink / raw
To: Shenlin Liang
Cc: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, namhyung, mark.rutland,
alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
On Mon, Apr 29, 2024 at 02:13:22PM +0800, Shenlin Liang wrote:
> Gentle ping...
It would be great to have people with such boards testing your patchkit
and providing Tested-by tags.
Also the patch set has both kernel and tooling support, thus needs to
find a RiscV kernel maintainer to pick the kernel bits and then, when
that was merged, I would look at reports of tests for the tooling side
to then merge it.
Hope this clarifies the process,
- Arnaldo
> > 'perf kvm stat report/record' generates a statistical analysis of KVM
> > events and can be used to analyze guest exit reasons. This patch tries
> > to add stat support on riscv.
> >
> > Map the return value of trace_kvm_exit() to the specific cause of the
> > exception, and export it to userspace.
> >
> > It records on two available KVM tracepoints for riscv: "kvm:kvm_entry"
> > and "kvm:kvm_exit", and reports statistical data which includes events
> > handles time, samples, and so on.
> >
> > Cross compiling perf in X86 environment may encounter issues with missing
> > libraries and tools. Suggest compiling nativly in RISC-V environment
> >
> > Simple tests go below:
> >
> > # ./perf kvm record -e "kvm:kvm_entry" -e "kvm:kvm_exit"
> > Lowering default frequency rate from 4000 to 2500.
> > Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate.
> > [ perf record: Woken up 18 times to write data ]
> > [ perf record: Captured and wrote 5.433 MB perf.data.guest (62519 samples)
> >
> > # ./perf kvm report
> > 31K kvm:kvm_entry
> > 31K kvm:kvm_exit
> >
> > # ./perf kvm stat record -a
> > [ perf record: Woken up 3 times to write data ]
> > [ perf record: Captured and wrote 8.502 MB perf.data.guest (99338 samples) ]
> >
> > # ./perf kvm stat report --event=vmexit
> > Event name Samples Sample% Time (ns) Time% Max Time (ns) Min Time (ns) Mean Time (ns)
> > STORE_GUEST_PAGE_FAULT 26968 54.00% 2003031800 40.00% 3361400 27600 74274
> > LOAD_GUEST_PAGE_FAULT 17645 35.00% 1153338100 23.00% 2513400 30800 65363
> > VIRTUAL_INST_FAULT 1247 2.00% 340820800 6.00% 1190800 43300 273312
> > INST_GUEST_PAGE_FAULT 1128 2.00% 340645800 6.00% 2123200 30200 301990
> > SUPERVISOR_SYSCALL 1019 2.00% 245989900 4.00% 1851500 29300 241403
> > LOAD_ACCESS 986 1.00% 671556200 13.00% 4180200 100700 681091
> > INST_ACCESS 655 1.00% 170054800 3.00% 1808300 54600 259625
> > HYPERVISOR_SYSCALL 21 0.00% 4276400 0.00% 716500 116000 203638
> >
> > Changes from v1->v2:
> > - Rebased on Linux 6.9-rc3.
> >
> > Changes from v2->v3:
> > - Add the missing assignment for 'vcpu_id_str' in patch 2.
> > - Remove parentheses that cause compilation errors
> >
> > Shenlin Liang (2):
> > RISCV: KVM: add tracepoints for entry and exit events
> > perf kvm/riscv: Port perf kvm stat to RISC-V
> >
> > arch/riscv/kvm/trace.h | 67 ++++++++++++++++
> > arch/riscv/kvm/vcpu.c | 7 ++
> > tools/perf/arch/riscv/Makefile | 1 +
> > tools/perf/arch/riscv/util/Build | 1 +
> > tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> > .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> > 6 files changed, 190 insertions(+)
> > create mode 100644 arch/riscv/kvm/trace.h
> > create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> > create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
> >
> > --
> > 2.37.2
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv
2024-04-22 8:08 [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
` (2 preceding siblings ...)
2024-04-29 6:13 ` [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
@ 2024-05-04 0:21 ` Atish Patra
2024-06-06 9:20 ` Anup Patel
4 siblings, 0 replies; 13+ messages in thread
From: Atish Patra @ 2024-05-04 0:21 UTC (permalink / raw
To: Shenlin Liang, anup, atishp, paul.walmsley, palmer, aou, kvm,
kvm-riscv, linux-riscv, linux-kernel, peterz, mingo, acme,
namhyung, mark.rutland, alexander.shishkin, jolsa, irogers,
adrian.hunter, linux-perf-users
On 4/22/24 01:08, Shenlin Liang wrote:
> 'perf kvm stat report/record' generates a statistical analysis of KVM
> events and can be used to analyze guest exit reasons. This patch tries
> to add stat support on riscv.
>
> Map the return value of trace_kvm_exit() to the specific cause of the
> exception, and export it to userspace.
>
> It records on two available KVM tracepoints for riscv: "kvm:kvm_entry"
> and "kvm:kvm_exit", and reports statistical data which includes events
> handles time, samples, and so on.
>
> Cross compiling perf in X86 environment may encounter issues with missing
> libraries and tools. Suggest compiling nativly in RISC-V environment
>
Indeed. I am able to test the series with native build.
For the entire series:
Tested-by: Atish Patra <atishp@rivosinc.com>
> Simple tests go below:
>
> # ./perf kvm record -e "kvm:kvm_entry" -e "kvm:kvm_exit"
> Lowering default frequency rate from 4000 to 2500.
> Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate.
> [ perf record: Woken up 18 times to write data ]
> [ perf record: Captured and wrote 5.433 MB perf.data.guest (62519 samples)
>
> # ./perf kvm report
> 31K kvm:kvm_entry
> 31K kvm:kvm_exit
>
> # ./perf kvm stat record -a
> [ perf record: Woken up 3 times to write data ]
> [ perf record: Captured and wrote 8.502 MB perf.data.guest (99338 samples) ]
>
> # ./perf kvm stat report --event=vmexit
> Event name Samples Sample% Time (ns) Time% Max Time (ns) Min Time (ns) Mean Time (ns)
> STORE_GUEST_PAGE_FAULT 26968 54.00% 2003031800 40.00% 3361400 27600 74274
> LOAD_GUEST_PAGE_FAULT 17645 35.00% 1153338100 23.00% 2513400 30800 65363
> VIRTUAL_INST_FAULT 1247 2.00% 340820800 6.00% 1190800 43300 273312
> INST_GUEST_PAGE_FAULT 1128 2.00% 340645800 6.00% 2123200 30200 301990
> SUPERVISOR_SYSCALL 1019 2.00% 245989900 4.00% 1851500 29300 241403
> LOAD_ACCESS 986 1.00% 671556200 13.00% 4180200 100700 681091
> INST_ACCESS 655 1.00% 170054800 3.00% 1808300 54600 259625
> HYPERVISOR_SYSCALL 21 0.00% 4276400 0.00% 716500 116000 203638
>
> Changes from v1->v2:
> - Rebased on Linux 6.9-rc3.
>
> Changes from v2->v3:
> - Add the missing assignment for 'vcpu_id_str' in patch 2.
> - Remove parentheses that cause compilation errors
>
> Shenlin Liang (2):
> RISCV: KVM: add tracepoints for entry and exit events
> perf kvm/riscv: Port perf kvm stat to RISC-V
>
> arch/riscv/kvm/trace.h | 67 ++++++++++++++++
> arch/riscv/kvm/vcpu.c | 7 ++
> tools/perf/arch/riscv/Makefile | 1 +
> tools/perf/arch/riscv/util/Build | 1 +
> tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> 6 files changed, 190 insertions(+)
> create mode 100644 arch/riscv/kvm/trace.h
> create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
>
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V
2024-04-22 8:08 ` [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V Shenlin Liang
@ 2024-05-04 0:25 ` Atish Patra
2024-06-06 9:40 ` Andreas Schwab
2024-06-07 0:27 ` Namhyung Kim
2 siblings, 0 replies; 13+ messages in thread
From: Atish Patra @ 2024-05-04 0:25 UTC (permalink / raw
To: Shenlin Liang, anup, atishp, paul.walmsley, palmer, aou, kvm,
kvm-riscv, linux-riscv, linux-kernel, peterz, mingo, acme,
namhyung, mark.rutland, alexander.shishkin, jolsa, irogers,
adrian.hunter, linux-perf-users
On 4/22/24 01:08, Shenlin Liang wrote:
> 'perf kvm stat report/record' generates a statistical analysis of KVM
> events and can be used to analyze guest exit reasons.
>
> "report" reports statistical analysis of guest exit events.
>
> To record kvm events on the host:
> # perf kvm stat record -a
>
> To report kvm VM EXIT events:
> # perf kvm stat report --event=vmexit
>
> Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com>
> ---
> tools/perf/arch/riscv/Makefile | 1 +
> tools/perf/arch/riscv/util/Build | 1 +
> tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> 4 files changed, 116 insertions(+)
> create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
>
> diff --git a/tools/perf/arch/riscv/Makefile b/tools/perf/arch/riscv/Makefile
> index a8d25d005207..e1e445615536 100644
> --- a/tools/perf/arch/riscv/Makefile
> +++ b/tools/perf/arch/riscv/Makefile
> @@ -3,3 +3,4 @@ PERF_HAVE_DWARF_REGS := 1
> endif
> PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
> PERF_HAVE_JITDUMP := 1
> +HAVE_KVM_STAT_SUPPORT := 1
> \ No newline at end of file
> diff --git a/tools/perf/arch/riscv/util/Build b/tools/perf/arch/riscv/util/Build
> index 603dbb5ae4dc..d72b04f8d32b 100644
> --- a/tools/perf/arch/riscv/util/Build
> +++ b/tools/perf/arch/riscv/util/Build
> @@ -1,5 +1,6 @@
> perf-y += perf_regs.o
> perf-y += header.o
>
> +perf-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o
> perf-$(CONFIG_DWARF) += dwarf-regs.o
> perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
> diff --git a/tools/perf/arch/riscv/util/kvm-stat.c b/tools/perf/arch/riscv/util/kvm-stat.c
> new file mode 100644
> index 000000000000..58813049fc45
> --- /dev/null
> +++ b/tools/perf/arch/riscv/util/kvm-stat.c
> @@ -0,0 +1,79 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Arch specific functions for perf kvm stat.
> + *
> + * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
> + *
> + */
> +#include <errno.h>
> +#include <memory.h>
> +#include "../../../util/evsel.h"
> +#include "../../../util/kvm-stat.h"
> +#include "riscv_exception_types.h"
> +#include "debug.h"
> +
> +define_exit_reasons_table(riscv_exit_reasons, kvm_riscv_exception_class);
> +
> +const char *vcpu_id_str = "id";
> +const char *kvm_exit_reason = "scause";
> +const char *kvm_entry_trace = "kvm:kvm_entry";
> +const char *kvm_exit_trace = "kvm:kvm_exit";
> +
> +const char *kvm_events_tp[] = {
> + "kvm:kvm_entry",
> + "kvm:kvm_exit",
> + NULL,
> +};
> +
> +static void event_get_key(struct evsel *evsel,
> + struct perf_sample *sample,
> + struct event_key *key)
> +{
> + key->info = 0;
> + key->key = evsel__intval(evsel, sample, kvm_exit_reason);
> + key->key = (int)key->key;
> + key->exit_reasons = riscv_exit_reasons;
> +}
> +
> +static bool event_begin(struct evsel *evsel,
> + struct perf_sample *sample __maybe_unused,
> + struct event_key *key __maybe_unused)
> +{
> + return evsel__name_is(evsel, kvm_entry_trace);
> +}
> +
> +static bool event_end(struct evsel *evsel,
> + struct perf_sample *sample,
> + struct event_key *key)
> +{
> + if (evsel__name_is(evsel, kvm_exit_trace)) {
> + event_get_key(evsel, sample, key);
> + return true;
> + }
> + return false;
> +}
> +
> +static struct kvm_events_ops exit_events = {
> + .is_begin_event = event_begin,
> + .is_end_event = event_end,
> + .decode_key = exit_event_decode_key,
> + .name = "VM-EXIT"
> +};
> +
> +struct kvm_reg_events_ops kvm_reg_events_ops[] = {
> + {
> + .name = "vmexit",
> + .ops = &exit_events,
> + },
> + { NULL, NULL },
> +};
> +
> +const char * const kvm_skip_events[] = {
> + NULL,
> +};
> +
> +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused)
> +{
> + kvm->exit_reasons_isa = "riscv64";
> + return 0;
> +}
> diff --git a/tools/perf/arch/riscv/util/riscv_exception_types.h b/tools/perf/arch/riscv/util/riscv_exception_types.h
> new file mode 100644
> index 000000000000..c49b8fa5e847
> --- /dev/null
> +++ b/tools/perf/arch/riscv/util/riscv_exception_types.h
> @@ -0,0 +1,35 @@
> +// SPDX-License-Identifier: GPL-2.0
> +#ifndef ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> +#define ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> +
> +#define EXC_INST_MISALIGNED 0
> +#define EXC_INST_ACCESS 1
> +#define EXC_INST_ILLEGAL 2
> +#define EXC_BREAKPOINT 3
> +#define EXC_LOAD_MISALIGNED 4
> +#define EXC_LOAD_ACCESS 5
> +#define EXC_STORE_MISALIGNED 6
> +#define EXC_STORE_ACCESS 7
> +#define EXC_SYSCALL 8
> +#define EXC_HYPERVISOR_SYSCALL 9
> +#define EXC_SUPERVISOR_SYSCALL 10
> +#define EXC_INST_PAGE_FAULT 12
> +#define EXC_LOAD_PAGE_FAULT 13
> +#define EXC_STORE_PAGE_FAULT 15
> +#define EXC_INST_GUEST_PAGE_FAULT 20
> +#define EXC_LOAD_GUEST_PAGE_FAULT 21
> +#define EXC_VIRTUAL_INST_FAULT 22
> +#define EXC_STORE_GUEST_PAGE_FAULT 23
> +
> +#define EXC(x) {EXC_##x, #x }
> +
> +#define kvm_riscv_exception_class \
> + EXC(INST_MISALIGNED), EXC(INST_ACCESS), EXC(INST_ILLEGAL), \
> + EXC(BREAKPOINT), EXC(LOAD_MISALIGNED), EXC(LOAD_ACCESS), \
> + EXC(STORE_MISALIGNED), EXC(STORE_ACCESS), EXC(SYSCALL), \
> + EXC(HYPERVISOR_SYSCALL), EXC(SUPERVISOR_SYSCALL), \
> + EXC(INST_PAGE_FAULT), EXC(LOAD_PAGE_FAULT), EXC(STORE_PAGE_FAULT), \
> + EXC(INST_GUEST_PAGE_FAULT), EXC(LOAD_GUEST_PAGE_FAULT), \
> + EXC(VIRTUAL_INST_FAULT), EXC(STORE_GUEST_PAGE_FAULT)
> +
> +#endif /* ARCH_PERF_RISCV_EXCEPTION_TYPES_H */
For some reason my previous RB email doesn't show up in lore. So here it
goes agian. Sorry for the spam it gets delivered twice.
Reviewed-by: Atish Patra <atishp@rivosinc.com>
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv
2024-04-22 8:08 [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
` (3 preceding siblings ...)
2024-05-04 0:21 ` Atish Patra
@ 2024-06-06 9:20 ` Anup Patel
4 siblings, 0 replies; 13+ messages in thread
From: Anup Patel @ 2024-06-06 9:20 UTC (permalink / raw
To: Shenlin Liang
Cc: atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv, linux-riscv,
linux-kernel, peterz, mingo, acme, namhyung, mark.rutland,
alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
On Mon, Apr 22, 2024 at 1:42 PM Shenlin Liang
<liangshenlin@eswincomputing.com> wrote:
>
> 'perf kvm stat report/record' generates a statistical analysis of KVM
> events and can be used to analyze guest exit reasons. This patch tries
> to add stat support on riscv.
>
> Map the return value of trace_kvm_exit() to the specific cause of the
> exception, and export it to userspace.
>
> It records on two available KVM tracepoints for riscv: "kvm:kvm_entry"
> and "kvm:kvm_exit", and reports statistical data which includes events
> handles time, samples, and so on.
>
> Cross compiling perf in X86 environment may encounter issues with missing
> libraries and tools. Suggest compiling nativly in RISC-V environment
>
> Simple tests go below:
>
> # ./perf kvm record -e "kvm:kvm_entry" -e "kvm:kvm_exit"
> Lowering default frequency rate from 4000 to 2500.
> Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate.
> [ perf record: Woken up 18 times to write data ]
> [ perf record: Captured and wrote 5.433 MB perf.data.guest (62519 samples)
>
> # ./perf kvm report
> 31K kvm:kvm_entry
> 31K kvm:kvm_exit
>
> # ./perf kvm stat record -a
> [ perf record: Woken up 3 times to write data ]
> [ perf record: Captured and wrote 8.502 MB perf.data.guest (99338 samples) ]
>
> # ./perf kvm stat report --event=vmexit
> Event name Samples Sample% Time (ns) Time% Max Time (ns) Min Time (ns) Mean Time (ns)
> STORE_GUEST_PAGE_FAULT 26968 54.00% 2003031800 40.00% 3361400 27600 74274
> LOAD_GUEST_PAGE_FAULT 17645 35.00% 1153338100 23.00% 2513400 30800 65363
> VIRTUAL_INST_FAULT 1247 2.00% 340820800 6.00% 1190800 43300 273312
> INST_GUEST_PAGE_FAULT 1128 2.00% 340645800 6.00% 2123200 30200 301990
> SUPERVISOR_SYSCALL 1019 2.00% 245989900 4.00% 1851500 29300 241403
> LOAD_ACCESS 986 1.00% 671556200 13.00% 4180200 100700 681091
> INST_ACCESS 655 1.00% 170054800 3.00% 1808300 54600 259625
> HYPERVISOR_SYSCALL 21 0.00% 4276400 0.00% 716500 116000 203638
>
> Changes from v1->v2:
> - Rebased on Linux 6.9-rc3.
>
> Changes from v2->v3:
> - Add the missing assignment for 'vcpu_id_str' in patch 2.
> - Remove parentheses that cause compilation errors
>
> Shenlin Liang (2):
> RISCV: KVM: add tracepoints for entry and exit events
> perf kvm/riscv: Port perf kvm stat to RISC-V
>
> arch/riscv/kvm/trace.h | 67 ++++++++++++++++
> arch/riscv/kvm/vcpu.c | 7 ++
> tools/perf/arch/riscv/Makefile | 1 +
> tools/perf/arch/riscv/util/Build | 1 +
> tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> 6 files changed, 190 insertions(+)
> create mode 100644 arch/riscv/kvm/trace.h
> create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
Queued this series for Linux-6.11
Thanks,
Anup
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V
2024-04-22 8:08 ` [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V Shenlin Liang
2024-05-04 0:25 ` Atish Patra
@ 2024-06-06 9:40 ` Andreas Schwab
2024-06-06 9:51 ` Anup Patel
2024-06-07 0:27 ` Namhyung Kim
2 siblings, 1 reply; 13+ messages in thread
From: Andreas Schwab @ 2024-06-06 9:40 UTC (permalink / raw
To: Shenlin Liang
Cc: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, namhyung,
mark.rutland, alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
On Apr 22 2024, Shenlin Liang wrote:
> \ No newline at end of file
Please fix that.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V
2024-06-06 9:40 ` Andreas Schwab
@ 2024-06-06 9:51 ` Anup Patel
0 siblings, 0 replies; 13+ messages in thread
From: Anup Patel @ 2024-06-06 9:51 UTC (permalink / raw
To: Andreas Schwab
Cc: Shenlin Liang, anup, atishp, paul.walmsley, palmer, aou, kvm,
kvm-riscv, linux-riscv, linux-kernel, peterz, mingo, acme,
namhyung, mark.rutland, alexander.shishkin, jolsa, irogers,
adrian.hunter, linux-perf-users
On Thu, Jun 6, 2024 at 3:10 PM Andreas Schwab <schwab@suse.de> wrote:
>
> On Apr 22 2024, Shenlin Liang wrote:
>
> > \ No newline at end of file
>
> Please fix that.
Fixed in KVM RISC-V queue.
Thanks,
Anup
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^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V
2024-04-22 8:08 ` [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V Shenlin Liang
2024-05-04 0:25 ` Atish Patra
2024-06-06 9:40 ` Andreas Schwab
@ 2024-06-07 0:27 ` Namhyung Kim
2024-06-07 2:11 ` Shenlin Liang
2 siblings, 1 reply; 13+ messages in thread
From: Namhyung Kim @ 2024-06-07 0:27 UTC (permalink / raw
To: Shenlin Liang
Cc: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, mark.rutland,
alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
Hello,
On Mon, Apr 22, 2024 at 08:08:33AM +0000, Shenlin Liang wrote:
> 'perf kvm stat report/record' generates a statistical analysis of KVM
> events and can be used to analyze guest exit reasons.
>
> "report" reports statistical analysis of guest exit events.
>
> To record kvm events on the host:
> # perf kvm stat record -a
>
> To report kvm VM EXIT events:
> # perf kvm stat report --event=vmexit
>
> Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com>
> ---
> tools/perf/arch/riscv/Makefile | 1 +
> tools/perf/arch/riscv/util/Build | 1 +
> tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> 4 files changed, 116 insertions(+)
> create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
>
> diff --git a/tools/perf/arch/riscv/Makefile b/tools/perf/arch/riscv/Makefile
> index a8d25d005207..e1e445615536 100644
> --- a/tools/perf/arch/riscv/Makefile
> +++ b/tools/perf/arch/riscv/Makefile
> @@ -3,3 +3,4 @@ PERF_HAVE_DWARF_REGS := 1
> endif
> PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
> PERF_HAVE_JITDUMP := 1
> +HAVE_KVM_STAT_SUPPORT := 1
> \ No newline at end of file
> diff --git a/tools/perf/arch/riscv/util/Build b/tools/perf/arch/riscv/util/Build
> index 603dbb5ae4dc..d72b04f8d32b 100644
> --- a/tools/perf/arch/riscv/util/Build
> +++ b/tools/perf/arch/riscv/util/Build
> @@ -1,5 +1,6 @@
> perf-y += perf_regs.o
> perf-y += header.o
>
> +perf-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o
> perf-$(CONFIG_DWARF) += dwarf-regs.o
> perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
> diff --git a/tools/perf/arch/riscv/util/kvm-stat.c b/tools/perf/arch/riscv/util/kvm-stat.c
> new file mode 100644
> index 000000000000..58813049fc45
> --- /dev/null
> +++ b/tools/perf/arch/riscv/util/kvm-stat.c
> @@ -0,0 +1,79 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Arch specific functions for perf kvm stat.
> + *
> + * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
> + *
> + */
> +#include <errno.h>
> +#include <memory.h>
> +#include "../../../util/evsel.h"
> +#include "../../../util/kvm-stat.h"
> +#include "riscv_exception_types.h"
> +#include "debug.h"
> +
> +define_exit_reasons_table(riscv_exit_reasons, kvm_riscv_exception_class);
> +
> +const char *vcpu_id_str = "id";
> +const char *kvm_exit_reason = "scause";
> +const char *kvm_entry_trace = "kvm:kvm_entry";
> +const char *kvm_exit_trace = "kvm:kvm_exit";
> +
> +const char *kvm_events_tp[] = {
> + "kvm:kvm_entry",
> + "kvm:kvm_exit",
> + NULL,
> +};
> +
> +static void event_get_key(struct evsel *evsel,
> + struct perf_sample *sample,
> + struct event_key *key)
> +{
> + key->info = 0;
> + key->key = evsel__intval(evsel, sample, kvm_exit_reason);
> + key->key = (int)key->key;
Looks unnecessary..
Thanks,
Namhyung
> + key->exit_reasons = riscv_exit_reasons;
> +}
> +
> +static bool event_begin(struct evsel *evsel,
> + struct perf_sample *sample __maybe_unused,
> + struct event_key *key __maybe_unused)
> +{
> + return evsel__name_is(evsel, kvm_entry_trace);
> +}
> +
> +static bool event_end(struct evsel *evsel,
> + struct perf_sample *sample,
> + struct event_key *key)
> +{
> + if (evsel__name_is(evsel, kvm_exit_trace)) {
> + event_get_key(evsel, sample, key);
> + return true;
> + }
> + return false;
> +}
> +
> +static struct kvm_events_ops exit_events = {
> + .is_begin_event = event_begin,
> + .is_end_event = event_end,
> + .decode_key = exit_event_decode_key,
> + .name = "VM-EXIT"
> +};
> +
> +struct kvm_reg_events_ops kvm_reg_events_ops[] = {
> + {
> + .name = "vmexit",
> + .ops = &exit_events,
> + },
> + { NULL, NULL },
> +};
> +
> +const char * const kvm_skip_events[] = {
> + NULL,
> +};
> +
> +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused)
> +{
> + kvm->exit_reasons_isa = "riscv64";
> + return 0;
> +}
> diff --git a/tools/perf/arch/riscv/util/riscv_exception_types.h b/tools/perf/arch/riscv/util/riscv_exception_types.h
> new file mode 100644
> index 000000000000..c49b8fa5e847
> --- /dev/null
> +++ b/tools/perf/arch/riscv/util/riscv_exception_types.h
> @@ -0,0 +1,35 @@
> +// SPDX-License-Identifier: GPL-2.0
> +#ifndef ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> +#define ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> +
> +#define EXC_INST_MISALIGNED 0
> +#define EXC_INST_ACCESS 1
> +#define EXC_INST_ILLEGAL 2
> +#define EXC_BREAKPOINT 3
> +#define EXC_LOAD_MISALIGNED 4
> +#define EXC_LOAD_ACCESS 5
> +#define EXC_STORE_MISALIGNED 6
> +#define EXC_STORE_ACCESS 7
> +#define EXC_SYSCALL 8
> +#define EXC_HYPERVISOR_SYSCALL 9
> +#define EXC_SUPERVISOR_SYSCALL 10
> +#define EXC_INST_PAGE_FAULT 12
> +#define EXC_LOAD_PAGE_FAULT 13
> +#define EXC_STORE_PAGE_FAULT 15
> +#define EXC_INST_GUEST_PAGE_FAULT 20
> +#define EXC_LOAD_GUEST_PAGE_FAULT 21
> +#define EXC_VIRTUAL_INST_FAULT 22
> +#define EXC_STORE_GUEST_PAGE_FAULT 23
> +
> +#define EXC(x) {EXC_##x, #x }
> +
> +#define kvm_riscv_exception_class \
> + EXC(INST_MISALIGNED), EXC(INST_ACCESS), EXC(INST_ILLEGAL), \
> + EXC(BREAKPOINT), EXC(LOAD_MISALIGNED), EXC(LOAD_ACCESS), \
> + EXC(STORE_MISALIGNED), EXC(STORE_ACCESS), EXC(SYSCALL), \
> + EXC(HYPERVISOR_SYSCALL), EXC(SUPERVISOR_SYSCALL), \
> + EXC(INST_PAGE_FAULT), EXC(LOAD_PAGE_FAULT), EXC(STORE_PAGE_FAULT), \
> + EXC(INST_GUEST_PAGE_FAULT), EXC(LOAD_GUEST_PAGE_FAULT), \
> + EXC(VIRTUAL_INST_FAULT), EXC(STORE_GUEST_PAGE_FAULT)
> +
> +#endif /* ARCH_PERF_RISCV_EXCEPTION_TYPES_H */
> --
> 2.37.2
>
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V
2024-06-07 0:27 ` Namhyung Kim
@ 2024-06-07 2:11 ` Shenlin Liang
2024-06-07 6:50 ` Anup Patel
0 siblings, 1 reply; 13+ messages in thread
From: Shenlin Liang @ 2024-06-07 2:11 UTC (permalink / raw
To: Namhyung Kim
Cc: anup, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, mark.rutland,
alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
On 2024-06-07 08:27, Namhyung Kim <namhyung@kernel.org> wrote:
>
> Hello,
>
> On Mon, Apr 22, 2024 at 08:08:33AM +0000, Shenlin Liang wrote:
> > 'perf kvm stat report/record' generates a statistical analysis of KVM
> > events and can be used to analyze guest exit reasons.
> >
> > "report" reports statistical analysis of guest exit events.
> >
> > To record kvm events on the host:
> > # perf kvm stat record -a
> >
> > To report kvm VM EXIT events:
> > # perf kvm stat report --event=vmexit
> >
> > Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com>
> > ---
> > tools/perf/arch/riscv/Makefile | 1 +
> > tools/perf/arch/riscv/util/Build | 1 +
> > tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> > .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> > 4 files changed, 116 insertions(+)
> > create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> > create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
> >
> > diff --git a/tools/perf/arch/riscv/Makefile b/tools/perf/arch/riscv/Makefile
> > index a8d25d005207..e1e445615536 100644
> > --- a/tools/perf/arch/riscv/Makefile
> > +++ b/tools/perf/arch/riscv/Makefile
> > @@ -3,3 +3,4 @@ PERF_HAVE_DWARF_REGS := 1
> > endif
> > PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
> > PERF_HAVE_JITDUMP := 1
> > +HAVE_KVM_STAT_SUPPORT := 1
> > \ No newline at end of file
> > diff --git a/tools/perf/arch/riscv/util/Build b/tools/perf/arch/riscv/util/Build
> > index 603dbb5ae4dc..d72b04f8d32b 100644
> > --- a/tools/perf/arch/riscv/util/Build
> > +++ b/tools/perf/arch/riscv/util/Build
> > @@ -1,5 +1,6 @@
> > perf-y += perf_regs.o
> > perf-y += header.o
> >
> > +perf-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o
> > perf-$(CONFIG_DWARF) += dwarf-regs.o
> > perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
> > diff --git a/tools/perf/arch/riscv/util/kvm-stat.c b/tools/perf/arch/riscv/util/kvm-stat.c
> > new file mode 100644
> > index 000000000000..58813049fc45
> > --- /dev/null
> > +++ b/tools/perf/arch/riscv/util/kvm-stat.c
> > @@ -0,0 +1,79 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Arch specific functions for perf kvm stat.
> > + *
> > + * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
> > + *
> > + */
> > +#include <errno.h>
> > +#include <memory.h>
> > +#include "../../../util/evsel.h"
> > +#include "../../../util/kvm-stat.h"
> > +#include "riscv_exception_types.h"
> > +#include "debug.h"
> > +
> > +define_exit_reasons_table(riscv_exit_reasons, kvm_riscv_exception_class);
> > +
> > +const char *vcpu_id_str = "id";
> > +const char *kvm_exit_reason = "scause";
> > +const char *kvm_entry_trace = "kvm:kvm_entry";
> > +const char *kvm_exit_trace = "kvm:kvm_exit";
> > +
> > +const char *kvm_events_tp[] = {
> > + "kvm:kvm_entry",
> > + "kvm:kvm_exit",
> > + NULL,
> > +};
> > +
> > +static void event_get_key(struct evsel *evsel,
> > + struct perf_sample *sample,
> > + struct event_key *key)
> > +{
> > + key->info = 0;
> > + key->key = evsel__intval(evsel, sample, kvm_exit_reason);
> > + key->key = (int)key->key;
>
> Looks unnecessary..
>
> Thanks,
> Namhyung
Yes，it's unnecessary...
@Anup, Could you delete this line when merging, or should I send another revision ?
Thanks,
Shenlin
>
>
> > + key->exit_reasons = riscv_exit_reasons;
> > +}
> > +
> > +static bool event_begin(struct evsel *evsel,
> > + struct perf_sample *sample __maybe_unused,
> > + struct event_key *key __maybe_unused)
> > +{
> > + return evsel__name_is(evsel, kvm_entry_trace);
> > +}
> > +
> > +static bool event_end(struct evsel *evsel,
> > + struct perf_sample *sample,
> > + struct event_key *key)
> > +{
> > + if (evsel__name_is(evsel, kvm_exit_trace)) {
> > + event_get_key(evsel, sample, key);
> > + return true;
> > + }
> > + return false;
> > +}
> > +
> > +static struct kvm_events_ops exit_events = {
> > + .is_begin_event = event_begin,
> > + .is_end_event = event_end,
> > + .decode_key = exit_event_decode_key,
> > + .name = "VM-EXIT"
> > +};
> > +
> > +struct kvm_reg_events_ops kvm_reg_events_ops[] = {
> > + {
> > + .name = "vmexit",
> > + .ops = &exit_events,
> > + },
> > + { NULL, NULL },
> > +};
> > +
> > +const char * const kvm_skip_events[] = {
> > + NULL,
> > +};
> > +
> > +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused)
> > +{
> > + kvm->exit_reasons_isa = "riscv64";
> > + return 0;
> > +}
> > diff --git a/tools/perf/arch/riscv/util/riscv_exception_types.h b/tools/perf/arch/riscv/util/riscv_exception_types.h
> > new file mode 100644
> > index 000000000000..c49b8fa5e847
> > --- /dev/null
> > +++ b/tools/perf/arch/riscv/util/riscv_exception_types.h
> > @@ -0,0 +1,35 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +#ifndef ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> > +#define ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> > +
> > +#define EXC_INST_MISALIGNED 0
> > +#define EXC_INST_ACCESS 1
> > +#define EXC_INST_ILLEGAL 2
> > +#define EXC_BREAKPOINT 3
> > +#define EXC_LOAD_MISALIGNED 4
> > +#define EXC_LOAD_ACCESS 5
> > +#define EXC_STORE_MISALIGNED 6
> > +#define EXC_STORE_ACCESS 7
> > +#define EXC_SYSCALL 8
> > +#define EXC_HYPERVISOR_SYSCALL 9
> > +#define EXC_SUPERVISOR_SYSCALL 10
> > +#define EXC_INST_PAGE_FAULT 12
> > +#define EXC_LOAD_PAGE_FAULT 13
> > +#define EXC_STORE_PAGE_FAULT 15
> > +#define EXC_INST_GUEST_PAGE_FAULT 20
> > +#define EXC_LOAD_GUEST_PAGE_FAULT 21
> > +#define EXC_VIRTUAL_INST_FAULT 22
> > +#define EXC_STORE_GUEST_PAGE_FAULT 23
> > +
> > +#define EXC(x) {EXC_##x, #x }
> > +
> > +#define kvm_riscv_exception_class \
> > + EXC(INST_MISALIGNED), EXC(INST_ACCESS), EXC(INST_ILLEGAL), \
> > + EXC(BREAKPOINT), EXC(LOAD_MISALIGNED), EXC(LOAD_ACCESS), \
> > + EXC(STORE_MISALIGNED), EXC(STORE_ACCESS), EXC(SYSCALL), \
> > + EXC(HYPERVISOR_SYSCALL), EXC(SUPERVISOR_SYSCALL), \
> > + EXC(INST_PAGE_FAULT), EXC(LOAD_PAGE_FAULT), EXC(STORE_PAGE_FAULT), \
> > + EXC(INST_GUEST_PAGE_FAULT), EXC(LOAD_GUEST_PAGE_FAULT), \
> > + EXC(VIRTUAL_INST_FAULT), EXC(STORE_GUEST_PAGE_FAULT)
> > +
> > +#endif /* ARCH_PERF_RISCV_EXCEPTION_TYPES_H */
> > --
> > 2.37.2
> >
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V
2024-06-07 2:11 ` Shenlin Liang
@ 2024-06-07 6:50 ` Anup Patel
0 siblings, 0 replies; 13+ messages in thread
From: Anup Patel @ 2024-06-07 6:50 UTC (permalink / raw
To: Shenlin Liang
Cc: Namhyung Kim, atishp, paul.walmsley, palmer, aou, kvm, kvm-riscv,
linux-riscv, linux-kernel, peterz, mingo, acme, mark.rutland,
alexander.shishkin, jolsa, irogers, adrian.hunter,
linux-perf-users
On Fri, Jun 7, 2024 at 7:44 AM Shenlin Liang
<liangshenlin@eswincomputing.com> wrote:
>
>
> On 2024-06-07 08:27, Namhyung Kim <namhyung@kernel.org> wrote:
>
> >
> > Hello,
> >
> > On Mon, Apr 22, 2024 at 08:08:33AM +0000, Shenlin Liang wrote:
> > > 'perf kvm stat report/record' generates a statistical analysis of KVM
> > > events and can be used to analyze guest exit reasons.
> > >
> > > "report" reports statistical analysis of guest exit events.
> > >
> > > To record kvm events on the host:
> > > # perf kvm stat record -a
> > >
> > > To report kvm VM EXIT events:
> > > # perf kvm stat report --event=vmexit
> > >
> > > Signed-off-by: Shenlin Liang <liangshenlin@eswincomputing.com>
> > > ---
> > > tools/perf/arch/riscv/Makefile | 1 +
> > > tools/perf/arch/riscv/util/Build | 1 +
> > > tools/perf/arch/riscv/util/kvm-stat.c | 79 +++++++++++++++++++
> > > .../arch/riscv/util/riscv_exception_types.h | 35 ++++++++
> > > 4 files changed, 116 insertions(+)
> > > create mode 100644 tools/perf/arch/riscv/util/kvm-stat.c
> > > create mode 100644 tools/perf/arch/riscv/util/riscv_exception_types.h
> > >
> > > diff --git a/tools/perf/arch/riscv/Makefile b/tools/perf/arch/riscv/Makefile
> > > index a8d25d005207..e1e445615536 100644
> > > --- a/tools/perf/arch/riscv/Makefile
> > > +++ b/tools/perf/arch/riscv/Makefile
> > > @@ -3,3 +3,4 @@ PERF_HAVE_DWARF_REGS := 1
> > > endif
> > > PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
> > > PERF_HAVE_JITDUMP := 1
> > > +HAVE_KVM_STAT_SUPPORT := 1
> > > \ No newline at end of file
> > > diff --git a/tools/perf/arch/riscv/util/Build b/tools/perf/arch/riscv/util/Build
> > > index 603dbb5ae4dc..d72b04f8d32b 100644
> > > --- a/tools/perf/arch/riscv/util/Build
> > > +++ b/tools/perf/arch/riscv/util/Build
> > > @@ -1,5 +1,6 @@
> > > perf-y += perf_regs.o
> > > perf-y += header.o
> > >
> > > +perf-$(CONFIG_LIBTRACEEVENT) += kvm-stat.o
> > > perf-$(CONFIG_DWARF) += dwarf-regs.o
> > > perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
> > > diff --git a/tools/perf/arch/riscv/util/kvm-stat.c b/tools/perf/arch/riscv/util/kvm-stat.c
> > > new file mode 100644
> > > index 000000000000..58813049fc45
> > > --- /dev/null
> > > +++ b/tools/perf/arch/riscv/util/kvm-stat.c
> > > @@ -0,0 +1,79 @@
> > > +// SPDX-License-Identifier: GPL-2.0
> > > +/*
> > > + * Arch specific functions for perf kvm stat.
> > > + *
> > > + * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
> > > + *
> > > + */
> > > +#include <errno.h>
> > > +#include <memory.h>
> > > +#include "../../../util/evsel.h"
> > > +#include "../../../util/kvm-stat.h"
> > > +#include "riscv_exception_types.h"
> > > +#include "debug.h"
> > > +
> > > +define_exit_reasons_table(riscv_exit_reasons, kvm_riscv_exception_class);
> > > +
> > > +const char *vcpu_id_str = "id";
> > > +const char *kvm_exit_reason = "scause";
> > > +const char *kvm_entry_trace = "kvm:kvm_entry";
> > > +const char *kvm_exit_trace = "kvm:kvm_exit";
> > > +
> > > +const char *kvm_events_tp[] = {
> > > + "kvm:kvm_entry",
> > > + "kvm:kvm_exit",
> > > + NULL,
> > > +};
> > > +
> > > +static void event_get_key(struct evsel *evsel,
> > > + struct perf_sample *sample,
> > > + struct event_key *key)
> > > +{
> > > + key->info = 0;
> > > + key->key = evsel__intval(evsel, sample, kvm_exit_reason);
> > > + key->key = (int)key->key;
> >
> > Looks unnecessary..
> >
> > Thanks,
> > Namhyung
>
> Yes，it's unnecessary...
> @Anup, Could you delete this line when merging, or should I send another revision ?
No need for another revision, I have updated the riscv_kvm_queue.
Regards,
Anup
> Thanks,
> Shenlin
>
> >
> >
> > > + key->exit_reasons = riscv_exit_reasons;
> > > +}
> > > +
> > > +static bool event_begin(struct evsel *evsel,
> > > + struct perf_sample *sample __maybe_unused,
> > > + struct event_key *key __maybe_unused)
> > > +{
> > > + return evsel__name_is(evsel, kvm_entry_trace);
> > > +}
> > > +
> > > +static bool event_end(struct evsel *evsel,
> > > + struct perf_sample *sample,
> > > + struct event_key *key)
> > > +{
> > > + if (evsel__name_is(evsel, kvm_exit_trace)) {
> > > + event_get_key(evsel, sample, key);
> > > + return true;
> > > + }
> > > + return false;
> > > +}
> > > +
> > > +static struct kvm_events_ops exit_events = {
> > > + .is_begin_event = event_begin,
> > > + .is_end_event = event_end,
> > > + .decode_key = exit_event_decode_key,
> > > + .name = "VM-EXIT"
> > > +};
> > > +
> > > +struct kvm_reg_events_ops kvm_reg_events_ops[] = {
> > > + {
> > > + .name = "vmexit",
> > > + .ops = &exit_events,
> > > + },
> > > + { NULL, NULL },
> > > +};
> > > +
> > > +const char * const kvm_skip_events[] = {
> > > + NULL,
> > > +};
> > > +
> > > +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused)
> > > +{
> > > + kvm->exit_reasons_isa = "riscv64";
> > > + return 0;
> > > +}
> > > diff --git a/tools/perf/arch/riscv/util/riscv_exception_types.h b/tools/perf/arch/riscv/util/riscv_exception_types.h
> > > new file mode 100644
> > > index 000000000000..c49b8fa5e847
> > > --- /dev/null
> > > +++ b/tools/perf/arch/riscv/util/riscv_exception_types.h
> > > @@ -0,0 +1,35 @@
> > > +// SPDX-License-Identifier: GPL-2.0
> > > +#ifndef ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> > > +#define ARCH_PERF_RISCV_EXCEPTION_TYPES_H
> > > +
> > > +#define EXC_INST_MISALIGNED 0
> > > +#define EXC_INST_ACCESS 1
> > > +#define EXC_INST_ILLEGAL 2
> > > +#define EXC_BREAKPOINT 3
> > > +#define EXC_LOAD_MISALIGNED 4
> > > +#define EXC_LOAD_ACCESS 5
> > > +#define EXC_STORE_MISALIGNED 6
> > > +#define EXC_STORE_ACCESS 7
> > > +#define EXC_SYSCALL 8
> > > +#define EXC_HYPERVISOR_SYSCALL 9
> > > +#define EXC_SUPERVISOR_SYSCALL 10
> > > +#define EXC_INST_PAGE_FAULT 12
> > > +#define EXC_LOAD_PAGE_FAULT 13
> > > +#define EXC_STORE_PAGE_FAULT 15
> > > +#define EXC_INST_GUEST_PAGE_FAULT 20
> > > +#define EXC_LOAD_GUEST_PAGE_FAULT 21
> > > +#define EXC_VIRTUAL_INST_FAULT 22
> > > +#define EXC_STORE_GUEST_PAGE_FAULT 23
> > > +
> > > +#define EXC(x) {EXC_##x, #x }
> > > +
> > > +#define kvm_riscv_exception_class \
> > > + EXC(INST_MISALIGNED), EXC(INST_ACCESS), EXC(INST_ILLEGAL), \
> > > + EXC(BREAKPOINT), EXC(LOAD_MISALIGNED), EXC(LOAD_ACCESS), \
> > > + EXC(STORE_MISALIGNED), EXC(STORE_ACCESS), EXC(SYSCALL), \
> > > + EXC(HYPERVISOR_SYSCALL), EXC(SUPERVISOR_SYSCALL), \
> > > + EXC(INST_PAGE_FAULT), EXC(LOAD_PAGE_FAULT), EXC(STORE_PAGE_FAULT), \
> > > + EXC(INST_GUEST_PAGE_FAULT), EXC(LOAD_GUEST_PAGE_FAULT), \
> > > + EXC(VIRTUAL_INST_FAULT), EXC(STORE_GUEST_PAGE_FAULT)
> > > +
> > > +#endif /* ARCH_PERF_RISCV_EXCEPTION_TYPES_H */
> > > --
> > > 2.37.2
> > >
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^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2024-06-07 6:50 UTC | newest]
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2024-04-22 8:08 [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
2024-04-22 8:08 ` [PATCH v3 1/2] RISCV: KVM: add tracepoints for entry and exit events Shenlin Liang
2024-04-22 8:08 ` [PATCH v3 2/2] perf kvm/riscv: Port perf kvm stat to RISC-V Shenlin Liang
2024-05-04 0:25 ` Atish Patra
2024-06-06 9:40 ` Andreas Schwab
2024-06-06 9:51 ` Anup Patel
2024-06-07 0:27 ` Namhyung Kim
2024-06-07 2:11 ` Shenlin Liang
2024-06-07 6:50 ` Anup Patel
2024-04-29 6:13 ` [PATCH v3 0/2] perf kvm: Add kvm stat support on riscv Shenlin Liang
2024-04-29 18:50 ` Arnaldo Carvalho de Melo
2024-05-04 0:21 ` Atish Patra
2024-06-06 9:20 ` Anup Patel
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