[ drivers/lguest/lguest_device.c ]

/*
 * Lguest guests use a very simple method to describe devices.  It's a
 * series of device descriptors contained just above the top of normal Guest
 * memory.
 *
 * We use the standard "virtio" device infrastructure, which provides us with a
 * console, a network and a block driver.  Each one expects some configuration
 * information and a "virtqueue" or two to send and receive data.
*/