linux-kernel - [PATCH 0/4] KVM: x86: tracepoint updates

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Message-Id: <20230830124243.671152-1-mlevitsk@redhat.com>
Date:   Wed, 30 Aug 2023 15:42:39 +0300
From:   Maxim Levitsky <mlevitsk@...hat.com>
To:     kvm@...r.kernel.org
Cc:     "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
        Sean Christopherson <seanjc@...gle.com>,
        Ingo Molnar <mingo@...hat.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Maxim Levitsky <mlevitsk@...hat.com>
Subject: [PATCH 0/4] KVM: x86: tracepoint updates

This patch series is intended to add some selected information
to the kvm tracepoints to make it easier to gather insights about
running nested guests.

This patch series was developed together with a new x86 performance analysis tool
that I developed recently (https://gitlab.com/maximlevitsky/kvmon)
which aims to be a better kvm_stat, and allows you at glance
to see what is happening in a VM, including nesting.

Best regards,
	Maxim Levitsky

Maxim Levitsky (4):
  KVM: x86: refactor req_immediate_exit logic
  KVM: x86: add more information to the kvm_entry tracepoint
  KVM: x86: add more information to kvm_exit tracepoint
  KVM: x86: add new nested vmexit tracepoints

 arch/x86/include/asm/kvm-x86-ops.h |   2 +-
 arch/x86/include/asm/kvm_host.h    |  11 ++-
 arch/x86/kvm/svm/nested.c          |  22 ++++++
 arch/x86/kvm/svm/svm.c             |  22 +++++-
 arch/x86/kvm/trace.h               | 115 +++++++++++++++++++++++++++--
 arch/x86/kvm/vmx/nested.c          |  21 ++++++
 arch/x86/kvm/vmx/vmx.c             |  31 +++++---
 arch/x86/kvm/vmx/vmx.h             |   2 -
 arch/x86/kvm/x86.c                 |  34 ++++-----
 9 files changed, 212 insertions(+), 48 deletions(-)

-- 
2.26.3