Method and apparatus for hardware virtualization

An apparatus for operating an input/output (I/O) interface in a virtual machine, comprising:

• one or more memory devices that stores a set of instructions;
• and
• one or more hardware processors configured to execute the set of instructions to cause the apparatus to:
• associate a first set of physical addresses with a configuration space of an I/O interface;
• associate the first set of physical addresses with a set of guest space virtual addresses that are accessible by a virtual machine;
• and
• control the I/O interface via a device driver operating in the virtual machine by performing one or more memory operations to the first set of physical addresses based on the association of the first set of physical addresses with the configuration space of the I/O interface and the set of guest space virtual addresses.

A method for operating an input/output (I/O) interface in a virtual machine, the method comprising:

• associating a first set of physical addresses with a configuration space of an I/O interface;
• associating the first set of physical addresses with a set of guest space virtual addresses that are accessible by a virtual machine;
• and
• controlling the I/O interface via a device driver operating in the virtual machine by performing one or more memory operations to the first set of physical addresses based on the association of the first set of physical addresses with the configuration space of the I/O interface and the set of guest space virtual addresses.

A non-transitory computer readable medium that stores instructions that are executable by one or more processors of an apparatus to perform a method for operating an input/output (I/O) interface in a virtual machine, the method comprising:

• associating a first set of physical addresses with a configuration space of an I/O interface;
• associating the first set of physical addresses with a set of guest space virtual addresses that are accessible by a virtual machine;
• and
• controlling the I/O interface via a device driver operating in the virtual machine by performing one or more memory operations to the first set of physical addresses based on the association of the first set of physical addresses with the configuration space of the I/O interface and the set of guest space virtual addresses.