Re: [Qemu-devel] Note on kqemu for Win4Lin users.

[Brad Campbell <brad@wasp.net.au>]

Emmanuel Charpentier wrote:
> Dear List,
> 
> This small note to help users of Win4Lin trying to use QEMU with kqemu : 
> either mki-adapter or Win4Lin (device drivers used by Win4Lin) probably 
> uses major 250, hence prohibiting use of kqemu.ko. A temporary fix is to 
> unload them (/etc/rc.d/init.d/Win4Lin stop). After that, qemu uses kqemu 
> (no more "incompatible kernel" message), and works like a charm.

The real problem is win4lin uses devices 244-253. I put keqmu at 239 and happily use both together

> I have not yet done real tests, but my first impression is that the real 
> fix to the drivers problem is to drop Win4Lin entierely : QEMU with 
> kqemu seems a better solution (may even be faster, at first sight) to my 
> needs...

win4lin running win95->winme is much, much faster than qemu running either those, or win2k. Horses 
for courses of course, but for my day to day stuff I can do on WinMe, it's just bucketloads quicker.
So kqemu is not faster by a very long way. Shame, but I'm sure it will improve over time.

bklaptop:~>cat /proc/devices
Character devices:
   1 mem
   2 pty/m%d
   3 pty/s%d
   4 tts/%d
   5 cua/%d
   7 vcs
  10 misc
  13 input
  14 sound
  29 fb
128 ptm
136 pts/%d
162 raw
180 usb
202 cpu/msr
203 cpu/cpuid
239 kqemu
244 Vnetd
245 Vnet
246 vwdisp
247 vmouse
248 vkbd
249 vgic
250 vdsp
251 Mserial
252 Mpip
253 Merge
254 pcmcia

Regards,
Brad
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