search for: kvmi_msg_dispatch_vcpu_cmd

...t err; + + if (invalid_vcpu_hdr(cmd)) + return -KVM_EINVAL; + + err = kvmi_get_vcpu_if_ready(kvmi, cmd->vcpu, &vcpu); + + if (err) + return kvmi_msg_vm_reply(kvmi, hdr, err, NULL, 0); + + err = kvmi_msg_queue_to_vcpu(vcpu, job); + if (!err) + *queued = true; + return err; +} + +static int kvmi_msg_dispatch_vcpu_cmd(struct kvm_introspection *kvmi, + struct kvmi_msg_hdr *msg, + bool *queued) +{ + struct kvmi_vcpu_cmd_job *job_cmd; + int err; + + job_cmd = kzalloc(sizeof(*job_cmd), GFP_KERNEL); + if (!job_cmd) + return -KVM_ENOMEM; + + job_cmd->msg = (void *)msg; + + err = kvmi_msg_dispatch...

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