VIRTUAL DEVICE HYPERVISOR MEMORY LIMITED RECEIVE QUEUING

摘要

A hypervisor retrieves a packet written by a guest operating system of a virtual machine from hypervisor memory accessible to the guest operating system. The Hypervisor then adds the packet of the guest operating system to at least one receive queue associated with a virtual device. The hypervisor pauses the retrieving of additional packets from the guest upon determining that the at least one receive queue size has met a first predetermined threshold condition. The hypervisor processes queued packets from the at least one receive queue sequentially. The hypervisor restarts the retrieving of the additional packets from the guest upon determining that the at least one receive queue size has met a second predetermined threshold condition.

主权项

1. A method comprising:
retrieving, by a processing device executing a hypervisor, a packet written by a guest operating system of a virtual machine from hypervisor memory accessible to the guest operating system; adding, by the hypervisor, the packet of the guest operating system to at least one receive queue associated with a virtual device; pausing, by the hypervisor, the retrieving of additional packets from the guest upon determining that the at least one receive queue size has met a first predetermined threshold condition; and processing, by the hypervisor, queued packets from the at least one receive queue sequentially.