RE: [Xen-devel] On x86-32 Xen Address Space

["Cui, Dexuan" <dexuan.cui@xxxxxxxxx>]

32-bit non-PAE Xen is not supported from 
3 months ago: i386: Remove non-PAE hypervisor build target. 
changeset 17600: 8bd776540ab3

Please see http://xenbits.xensource.com/xen-unstable.hg/rev/8bd776540ab3
for details.

-- Dexuan.

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of BVK
Chaitanya
Sent: Saturday, August 30, 2008 12:21 PM
To: Xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] On x86-32 Xen Address Space

Hi,


I was going through Xen address space layout, and i was thinking Xen 
uses upper 64MB in x86-32 mode and 168MB in x86-32 PAE mode.  But from 
xen/include/asm-x86/config.h it is not clear where different mappings 
are for 32-bit and 32-bit PAE modes.

I see that FRAMETABLE_MBYTES is hard coded as 96, and other macros are 
also summing up to 168MB, not 64MB.  Does it mean, now Xen takes 168MB 
in both modes? or am i missing anything?


thanks,
--
bvk-chaitanya

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