search for: kvmi_singlestep_failed

...{ + kvmi_singlestep_done(vcpu); return 1; } @@ -5994,6 +5995,11 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu) } } + if (kvmi_vcpu_running_singlestep(vcpu) && + exit_reason != EXIT_REASON_EPT_VIOLATION && + exit_reason != EXIT_REASON_MONITOR_TRAP_FLAG) + kvmi_singlestep_failed(vcpu); + if (exit_reason < kvm_vmx_max_exit_handlers && kvm_vmx_exit_handlers[exit_reason]) { #ifdef CONFIG_RETPOLINE diff --git a/include/linux/kvmi_host.h b/include/linux/kvmi_host.h index 7c84ca681411..723a902f4b89 100644 --- a/include/linux/kvmi_host.h +++ b/include/linux/kv...

...(vcpu); return 1; } @@ -6173,6 +6174,11 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath) } } + if (kvmi_vcpu_running_singlestep(vcpu) && + exit_reason != EXIT_REASON_EPT_VIOLATION && + exit_reason != EXIT_REASON_MONITOR_TRAP_FLAG) + kvmi_singlestep_failed(vcpu); + if (exit_fastpath != EXIT_FASTPATH_NONE) return 1; diff --git a/include/linux/kvmi_host.h b/include/linux/kvmi_host.h index a641768027cc..b01e8505f493 100644 --- a/include/linux/kvmi_host.h +++ b/include/linux/kvmi_host.h @@ -94,6 +94,8 @@ bool kvmi_hypercall_event(struct kvm_vcpu *...

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

The KVM introspection subsystem provides a facility for applications running on the host or in a separate VM, to control the execution of other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.), alter the page access bits in the shadow page tables (only for the hardware backed ones, eg. Intel's EPT) and receive notifications when events of interest have taken place

This patch series is based on the VM introspection patches (https://lore.kernel.org/kvm/20200721210922.7646-1-alazar at bitdefender.com/), extending the introspection API with EPT Views and Virtualization Exceptions (#VE) support. The purpose of this series is to get an initial feedback and to see if we are on the right track, especially because the changes made to add the EPT views are not small