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Custom VMMIO

Virtual Memory Mapped I/O (VMMIO) is a mechanism for emulating hardware devices. On a virtual device, custom virtual MMIO ranges can be added to the device and driven through a TCP socket.

When specifying a custom VMMIO range, you must specify a series of parameters:

  • start - start address for beginning of vMMIO range
  • size - size of the range to use for vMMIO
  • irq - system IRQs, 1-16 ranges must be specified
  • port - TCP port for vMMIO usage