CONFIGURATION SPACE WITH PSEUDO DEVICE IDENTIFIER

摘要

Techniques for loading device drivers are provided. A configuration space may contain a device identifier. The configuration space may be modified by replacing the device identifier with a pseudo device identifier. In one aspect the pseudo device identifier may be passed to a virtual machine. In another aspect, the pseudo device identifier may be used to load a driver.

主权项

1. A system comprising:
a processor; and a memory coupled to the processor, the memory containing instructions which when executed by the processor cause the processor to:
retrieve, with a hypervisor, a Peripheral Component Interconnect (PCI) configuration space of a function of a PCI card, the configuration space including a device identifier;modify the retrieved PCI configuration space by replacing the device identifier with a pseudo device identifier; andpass the modified PCI configuration space to a guest virtual machine.