Re: [PATCH]Fix broken VMI in 2.6.27-rc..

[Jeremy Fitzhardinge]

H. Peter Anvin wrote:
> The fixmap area should never have been made movable.  It's utter 
> braindamage.

Shrug.  It's been like that for a couple of years now.  It was one of 
the very first paravirt-ops patches.  It wasn't controversial then, and 
nobody seems to have noticed since.

> Given the x86 architecture, it's inevitable that PV will want to 
> reserve address space at the top of memory, and therefore the fixmap 
> area needs to be moved out of that space.

OK.  But there's a few places where the code uses FIXADDR_TOP to mean 
"top of kernel address space", so we'd need to come up with a proper 
symbol for that.

   J
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