Re: [ros-dev] Re: [ros-svn] [navaraf] 16445: Put the page tables and hyperspace at the right place in memory (ie. Windows compatible).

[James Tabor]

Alex Ionescu wrote:
>   Hartmut Birr wrote:
>  
> >   Filip Navara wrote:
> >
> >   
> >
> > > Sorry, I was confused by incorrect graph in the Windows Internals, 4th
> > > edition book which shows an 8Mb hyperspace region (in fact the high
> > > 4Mb are unused).
> > > 
>  
>  Yes, that graph is totally wrong and limited...shame for such a good book.
>   
Hum? If anything I know about M$ and their enablers, you always have to read
between the lines.

> > >   Do you think the attached patch corrects the problem?
> > >
> > >  Regards,
> > >  Filip
> > >     
> >
> >  Hi,
> >
> >  your patch does fix the problem. I prefer to use 0xc0800000 - 0xc08fffff
> >  for the hyperspace region. 
>  
>  But that's not NT-compatible anymore. First of all that's only 0xFFFFF 
>  bytes, while the Hyperspace region should be 0x400000 bytes. And 
>  secondly, the region is marked as reserved.  I agree with Filip to use 
>  0xc0400000-0xc0800000
>  
> >   It removes the test for pae or nonpae mode.
> >
> >  - Hartmut
> >
> >   
> >  
>  Best regards,
>  Alex Ionescu