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Groups > linux.kernel > #1555176
| Path | csiph.com!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Punit Agrawal <punit.agrawal@arm.com> |
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 3/9] KVM: Add event to trace tlb invalidations |
| Date | Tue, 10 Jan 2017 12:50:01 +0100 |
| Message-ID | <sY369-N3-1@gated-at.bofh.it> (permalink) |
| References | <sY2Wu-JF-13@gated-at.bofh.it> |
| X-Original-To | kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org |
| X-Mailer | git-send-email 2.11.0 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 41 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | Punit Agrawal <punit.agrawal@arm.com>, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Christoffer Dall <christoffer.dall@linaro.org>, Marc Zyngier <marc.zyngier@arm.com>, Steven Rostedt <rostedt@goodmis.org>, Paolo Bonzini <pbonzini@redhat.com> |
| X-Original-Date | Tue, 10 Jan 2017 11:38:50 +0000 |
| X-Original-Message-ID | <20170110113856.7183-4-punit.agrawal@arm.com> |
| X-Original-References | <20170110113856.7183-1-punit.agrawal@arm.com> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1555176 |
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As TLB operations can have an impact on system performance, add a trace
event to enable monitoring of guest TLB maintenance operations.
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
---
include/trace/events/kvm.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index 8ade3eb6c640..fbe33089264c 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -393,6 +393,24 @@ TRACE_EVENT(kvm_halt_poll_ns,
#define trace_kvm_halt_poll_ns_shrink(vcpu_id, new, old) \
trace_kvm_halt_poll_ns(false, vcpu_id, new, old)
+TRACE_EVENT(kvm_tlb_invalidate,
+ TP_PROTO(unsigned long vcpu_pc, u32 opcode),
+ TP_ARGS(vcpu_pc, opcode),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, vcpu_pc)
+ __field(u32, opcode)
+ ),
+
+ TP_fast_assign(
+ __entry->vcpu_pc = vcpu_pc;
+ __entry->opcode = opcode;
+ ),
+
+ TP_printk("vcpu_pc=0x%16lx opcode=%08x", __entry->vcpu_pc,
+ __entry->opcode)
+);
+
#endif /* _TRACE_KVM_MAIN_H */
/* This part must be outside protection */
--
2.11.0
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[PATCH v3 0/9] Add support for monitoring guest TLB operations Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:40 +0100 [PATCH v3 3/9] KVM: Add event to trace tlb invalidations Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100 [PATCH v3 7/9] kvm: host_pmu: Add support for tracking guest TLB operations Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100 [PATCH v3 9/9] arm64: KVM: Enable support for the host pmu Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100 [PATCH v3 2/9] KVM: Track the pid of the VM process Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100 [PATCH v3 5/9] arm64: KVM: Handle trappable TLB instructions Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100 [PATCH v3 4/9] arm: KVM: Handle trappable TLB instructions Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100 [PATCH v3 8/9] arm: KVM: Enable support for host pmu Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100 [PATCH v3 6/9] kvm: arm/arm64: Add host pmu to support VM introspection Punit Agrawal <punit.agrawal@arm.com> - 2017-01-10 12:50 +0100
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