RE: [Qemu-devel] Qemu impressions

[ZIGLIO, Frediano, VF-IT]

 
 Hi,
   this is my first mail in Qemu mailing list. I think it's a fantastic
 program. I'm starting using it quite a lot at home (with Linux) and at
 work (with Windows XP). Everything works quite well (nothing is
 perfect).
 

Well, I know, reply to my mail is quite crazy but here it is...

 - windows printf do not handle %lld format strings and similar (llx,
 llo, llu) casing some problems (try qemu-img info imagefile 
 command),
 correct format for long long type is I64 (so %lld should be
 converted to %I64d under windows or replace any printf calls using a
 standard printf)

img_printf.diff handle this using I64 instead of ll in qemu-img.c

real_allocation_size.diff handle situation where image file is sparse or
compressed returning real allocation size instead of file size. It work
only from Windows NT (where compressed and/or sparse file are handled)
loading dynamically (to support former windows versions)
GetCompressedFileSize API.

freddy77



img_printf.diff
Description: img_printf.diff


real_allocation_size.diff
Description: real_allocation_size.diff
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[Qemu-devel] Qemu impressions

[ZIGLIO, Frediano, VF-IT]

Hi,
  this is my first mail in Qemu mailing list. I think it's a fantastic
program. I'm starting using it quite a lot at home (with Linux) and at
work (with Windows XP). Everything works quite well (nothing is
perfect).

I'm a developer but I'm quite busy at the moment. Recently I got it
compiling under windows but I don't know if I would be able to send some
patches so let me share some hints I got:
- under windows pressing system keys like win-R are not handled that
fine (well the workaround is just press win key again)
- under windows using dsound (SET QEMU_AUDIO_DRV=dsound) as sound driver
closing console window qemu crash. This not happen using standard sdl
driver (so I think problem reside in audio/dsoundaudio.c source)
- windows printf do not handle %lld format strings and similar (llx,
llo, llu) casing some problems (try qemu-img info imagefile command),
correct format for long long type is I64 (so %lld should be
converted to %I64d under windows or replace any printf calls using a
standard printf)
- full kernel emulation on Windows XP seems to crash the system

Is someone working on qemu-img? I like very much the basefile idea,
usually I install a base system, wipe it in some way, compress with
qemu-img convert ..., create a new image based on base system and than
work on this new image however is not possible to wipe and restrict
(even without compression) using qemu-img convert ... cause conversion
of a image based on another give a new not based image. I would also
useful a command to create an image based on another (something like a
image diff) or creating a based image with different size (for example
having a first 3G image with a single 3G partition and another image
based on first with two partition with first 3G and second 6GB). Another
problem is porting image from windows to linux, image based have
basefile stored in it so is very difficult to move this type of image,
it would be fine having relative paths and/or some way to change base
filename.

bye
  freddy77



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