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.
V4: addressed review feedback
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 information about pending requests 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 | 10 +--
arch/x86/kvm/svm/nested.c | 22 ++++++
arch/x86/kvm/svm/svm.c | 24 ++++++-
arch/x86/kvm/trace.h | 105 +++++++++++++++++++++++++++--
arch/x86/kvm/vmx/nested.c | 27 ++++++++
arch/x86/kvm/vmx/vmx.c | 30 +++++----
arch/x86/kvm/vmx/vmx.h | 2 -
arch/x86/kvm/x86.c | 34 +++++-----
9 files changed, 209 insertions(+), 47 deletions(-)
--
2.26.3