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
