Il 18/05/2013 20:24, Rempel, Cynthia ha scritto: > we want to be able to verify a guest OS's CAN driver has been integrated > properly and is sending CAN packets... > > Perhaps along the lines of two calls: > qemu-system-arm -hda linux1.img -can student-implemented-device > qemu-system-arm -hda linux2.img -can student-implemented-device
You would probably use either -net, or -netdev and -device (see docs/qdev-device-use.txt). > Then using a network protocol analyzer (such as Wireshark) with a custom > filter to recognize CAN packets, > OR > qemu-system-arm -hda linux1.img -can student-implemented-device > then attaching a real CAN device to the host computer and verifying that the > output is being recognized be real hardware. Is this CAN device just an Ethernet device? QEMU does not support other link-level protocols. Adding them would be possible and interesting, however it would add a bit to the complexity. > Whichever is more feasible to implement... Both would be the same. In the first case, you'd probably use "-netdev socket" to share a virtual network between two virtual machines. In the second, you would use something like "-netdev tap" (again assuming it's just an Ethernet device). Paolo
