Counter for Fast Interrupt Register Access in Hypervisors

摘要

Methods, systems and computer program products for fast interrupt register access in hypervisors are provided. A computer-implemented method may include maintaining a counter associated with a register to track set interrupt vectors in a virtual machine, updating the counter in response to an interrupt event in the virtual machine, and examining the counter to determine when an interrupt vector is set.

主权项

1. A computer-implemented method, comprising:
maintaining, in memory of a hypervisor executed by a processing device, a counter associated with a register to track set interrupt vectors in a virtual machine; updating, by the hypervisor, the counter in response to an interrupt event in the virtual machine; and examining, by the hypervisor, the counter to determine when an interrupt vector is set.