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Re: [Xen-devel] PAE guest address maps?

To: Randy Thelen <rthelen@xxxxxxxxxx>
Subject: Re: [Xen-devel] PAE guest address maps?
From: Steven Hand <Steven.Hand@xxxxxxxxxxxx>
Date: Thu, 26 Oct 2006 03:48:42 +0100
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Steven.Hand@xxxxxxxxxxxx
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>Folks --
>
>I'm looking through a PAE guest's address map and I'm trying to make  
>sense out of it.  Is there some documentation about these address  
>regions:
>
>0xc0000000 - 0xc0800000: 8MB    x/8x 0xc0000000
>0xfde00000 - 0xfde04000: 16KB   x/8x 0xfde00000
>0xfdfac000 - 0xfdfae000: 8KB    NOT READABLE
>0xfdfb4000 - 0xfdfc0000: 48KB   NOT READABLE
>0xfdfe4000 - 0xfdfe6000: 8KB    NOT READABLE
>0xfdfec000 - 0xfdff0000: 16KB   x/8x 0xfdfec000
>0xfdff4000 - 0xfe000000: 48KB   NOT READABLE
>
>Is the above map documented in the general case somewhere?

Take a look at xen/include/asm-x86/config.h ; this defines the 
overall memory layout for x86_32, PAE & x86_64 systems, as well
as including some comments that should help you. 


cheers,

S.


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