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[Qemu-devel] plugins

From: Hetz Ben Hamo
Subject: [Qemu-devel] plugins
Date: Sat, 10 Jul 2004 14:49:54 +0300
User-agent: Mozilla Thunderbird 0.7 (X11/20040615)

There is already a plugin system. It requires you to recompile everytime
you add a new piece of hardware, though. I don't think this is a problem
as most likely you will have to recompile anyway to make sure the plugin
uses the same header files as qemu's core.

Yes, but this plugin method is not very usefull for 3rd party plugins..

Many people don't realize one thing about QEMU which differs it from ANY other emulator: For the first time, you can create a "hardware card", write drivers for it and test it on guest OS's (Windows, Linux, *BSD, etc) and test it on other platforms (PPC, Sparc, ARM, once their core is matured).

Think about it: You can create a new PCI card without buying those all expensive software to simulate it, write drivers to test it and if it works well for your customer(s), you can do the real PCI card! Go try that with VMWare (you can't), BOCHS (good luck hacking their code, and see the speed difference), and I'm not even mentioning PPC, ARM or Sparc...

With a plugin system (all it takes is 2 files: an text/XML file which contains the info on this plugin, and a .so file which is the plugin itself) both closed source and open source developers can add lots of hardware to QEMU which can be used for driver development on Linux and on Windows (as well other guest OS's) without having the real hardware.

Have you ever thought to write driver for Linux for some hardware (which someone can writes a plugin) without having it? now you (potentially) can..

Just my thoughts...

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