Call_VM_Event

include vmm.inc

mov     ebx, VMHandle
mov     esi, OFFSET32 EventCallback
mov     edx, RefData
VMMcall Call_VM_Event
mov     [EventHandle], esi

Calls the event callback function immediately or schedules an event for the specified virtual machine. This is an asynchronous service. Uses Flags

• Returns zero in ESI f the service calls the callback function. Otherwise, returns the event handle in ESI. The event handle can be used in subsequent calls to the Cancel_VM_Event service to cancel the event.

VMHandle

Handle of the virtual machine to process the event. This value must be a valid VM handle.

EventCallback

Address of the callback function to install. For more information about the callback function, see EventCallback.

RefData

Reference data to pass to the event callback function.

Since the specified virtual machine must process the event, the system carries out a task switch if necessary before calling the function. The callback function can carry out any actions and use any VMM services.

For additional information about event callbacks, see Event Callbacks.

See also Cancel_VM_Event, EventCallback, Schedule_VM_Event