[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] Writing a CAN driver for QEMU
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] Writing a CAN driver for QEMU |
Date: |
Sun, 19 May 2013 14:58:48 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 |
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
- [Qemu-devel] Writing a CAN driver for QEMU, Rempel, Cynthia, 2013/05/17
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Paolo Bonzini, 2013/05/18
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Rempel, Cynthia, 2013/05/18
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Stefan Weil, 2013/05/18
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Rempel, Cynthia, 2013/05/18
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Pavel Pisa, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Jean-Christophe PLAGNIOL-VILLARD, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Peter Maydell, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Stefan Weil, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU,
Paolo Bonzini <=
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Paolo Bonzini, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Stefan Weil, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Andreas Färber, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Pavel Pisa, 2013/05/19
- Re: [Qemu-devel] Writing a CAN driver for QEMU, Andreas Färber, 2013/05/20