Virtualization exceptions

摘要

Embodiments of an invention for virtualization exceptions are disclosed. In one embodiment, a processor includes instruction hardware, control logic, and execution hardware. The instruction hardware is to receive a plurality of instructions, including an instruction to enter a virtual machine. The control logic is to determine, in response to a privileged event occurring within the virtual machine, whether to generate a virtualization exception. The execution hardware is to generate a virtualization exception in response to the control logic determining to generate a virtualization exception.

主权项

1. A processor comprising:
instruction hardware to receive a plurality of instructions, including an instruction to enter a virtual machine; control logic to determine, in response to a first exception occurring within the virtual machine operating according to a first configuration of a virtual machine control structure, to cause an exit from the virtual machine to a virtual machine monitor outside the virtual machine, and to determine, in response to the first exception occuring within the virtual machine operating according to a second configuration of the virtual machine control structure, to generate a second exception instead of an exit from the virtual machine; and execution hardware to generate the second exception in response to the control logic determining to generate the second exception and to respond to the second exception with a transfer of execution control within the virtual machine.