search for: 1681,24

...struct kvmi_vcpu_hdr *)req; + + vcpu_hdr->vcpu = 0; + + send_message(cmd_id, req, req_size); + return receive_cmd_reply(req, rpl, rpl_size); +} + static int do_vcpu0_command(struct kvm_vm *vm, int cmd_id, struct kvmi_msg_hdr *req, size_t req_size, void *rpl, size_t rpl_size) @@ -1681,24 +1700,67 @@ static void test_event_pf(struct kvm_vm *vm) test_pf(vm, cbk_test_event_pf); } -static void test_cmd_vcpu_control_singlestep(struct kvm_vm *vm) +static void control_singlestep(struct kvm_vm *vm, bool enable) { struct { struct kvmi_msg_hdr hdr; struct kvmi_vcpu_hdr 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