From: Nicolas Saenz Julienne <nsaenzju@redhat.com>
To: linux-arm-kernel@lists.infradead.org, maz@kernel.org,
rostedt@goodmis.org
Cc: james.morse@arm.com, alexandru.elisei@arm.com,
suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org,
nsaenzju@redhat.com, linux-kernel@vger.kernel.org,
kvmarm@lists.cs.columbia.edu, mingo@redhat.com,
mtosatti@redhat.com, nilal@redhat.com
Subject: [RFC PATCH 0/2] KVM: arm64: Host/Guest trace syncronization
Date: Fri, 19 Nov 2021 11:21:16 +0100 [thread overview]
Message-ID: <20211119102117.22304-1-nsaenzju@redhat.com> (raw)
This small series introduces the necessary infrastructure to be able to
syncronize host and guest traces. The approach I'm following is a bit
biased since I tried to replicate the methods I've been using in the
past with x86.
This was tested on an Ampere Mt. Jade based machine.
---
Nicolas Saenz Julienne (2):
arm64/tracing: add cntvct based trace clock
KVM: arm64: export cntvoff in debugfs
arch/arm64/include/asm/kvm_host.h | 1 +
arch/arm64/include/asm/trace_clock.h | 12 ++++++++++++
arch/arm64/kernel/Makefile | 2 +-
arch/arm64/kernel/trace_clock.c | 12 ++++++++++++
arch/arm64/kvm/Makefile | 2 +-
arch/arm64/kvm/arch_timer.c | 2 +-
arch/arm64/kvm/debugfs.c | 25 +++++++++++++++++++++++++
include/kvm/arm_arch_timer.h | 3 +++
8 files changed, 56 insertions(+), 3 deletions(-)
create mode 100644 arch/arm64/include/asm/trace_clock.h
create mode 100644 arch/arm64/kernel/trace_clock.c
create mode 100644 arch/arm64/kvm/debugfs.c
--
2.33.1
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next reply other threads:[~2021-11-19 10:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-19 10:21 Nicolas Saenz Julienne [this message]
2021-11-19 10:21 ` [RFC PATCH 1/2] arm64/tracing: add cntvct based trace clock Nicolas Saenz Julienne
2021-11-19 11:26 ` Marcelo Tosatti
2021-11-19 12:00 ` Marc Zyngier
2021-11-19 13:26 ` Nicolas Saenz Julienne
2021-11-22 14:57 ` Steven Rostedt
2021-11-24 9:45 ` Nicolas Saenz Julienne
2021-11-19 10:21 ` [RFC PATCH 2/2] KVM: arm64: export cntvoff in debugfs Nicolas Saenz Julienne
2021-11-19 11:11 ` Marcelo Tosatti
2021-11-19 12:17 ` Marc Zyngier
2021-11-19 12:59 ` Marcelo Tosatti
2021-11-19 13:31 ` Marc Zyngier
2021-11-22 20:40 ` Nicolas Saenz Julienne
2021-11-23 11:09 ` Marc Zyngier
2021-11-29 12:47 ` Marcelo Tosatti
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