QEMU with KQemu accelerator module



I’ve been playing around with qemu lately and there is a little tip I ran into that helps in getting the kqemu module running if you have Win4lin installed.


This is from the Win4Lin support because THEIR module could conflict with it. They suggest the following.

mknod -m 0666 /dev/kqemu c 239 0
insmod /lib/modules/2.6.8.1-12mdk/kernel/3rdparty/kqemu/kqemu.ko major=239

(The insmod directory should be the place the kqemu.ko module exists. major=239 tells it to use the major character defined in the mknod device.) The default is 250, that apparently conflicts with the Win4lin kernel module. Weird stuff, but the acceleration is worth the time spent to load the module. Another note if you have a peculiar setup like mine and qemu was not compiled for kqemu and you don’t want to recompile after getting kqemu set… you’ll likely be seeing this error at boot.
Could not open ‘/dev/qvm86′ – QEMU acceleration layer not activated

The fix, (if you have kqemu set) is to …

ln -s /dev/kqemu /dev/qvm86

Related Posts

Blog Traffic Exchange Related Posts
  • Qemu 0.8.1 speed improvement with -kernel-kqemu and kqemu 1.3.0pre7 I mentioned the other day revisiting the qemu site to discover new versions of both qemu and the non-redistributable kernel module kqemu (qemu is now at version 0.8.1 and kqemu is at 1.3.0pre7). There's also a new startup switch -kernel-kqemu which enables FULL virtualization of both kernel and user code.......
  • Qemu revisited I mentioned Qemu a short while back. I've used it in the past for testing linux livecds. After doing the writeup though I was encouraged to look at it again and see if/how much it's improved since I last got an update. Wow.... For starters, I spent a bit of......
  • Running Windows applications under Linux There are a number of Windows applications that may not have suitable replacements under linux. I know a lot of people that have considered switching, but there was "one program holding them back." Fortunately there are several options on how to keep that one application from holding you back. Well......
Blog Traffic Exchange Related Websites
  • Stock Assault 2.0 AI Software - 60% Commission, 17% Conversion Rate Once your copy of Stock Assault 2.0 picks a stock, you can also research the stock using the built-in features such as charting if you wish.Real day traders and professional traders do just that, hence the name "day" traders.But we'll guarantee that you'll barely make any money after a year......
  • Bathroom Remodeling Ideas Under $500 You might think that bathroom remodeling ideas all have to be expensive, major undertakings. Most things that can be remodeled in a bathroom are expensive, and will usually make the bathroom unusable for at least a day or two. But if you need to spruce up your bathroom and don't......
  • How to Choose the Best Coin Collection Software Coin collecting is something which has been happening for over 200 years. There are collectors which have written many different books to help other collectors understand the different things to look out for when buying and selling coins. These books have been treasured by all those who are getting started......
www.pdf24.org    Send article as PDF   

Similar Posts


See what happened this day in history from either BBC Wikipedia
Search:
Keywords:
Amazon Logo

Comments are closed.


Switch to our mobile site