Re: [Fastboot] [PATCH][RFC] x86_64: Reload CS when startup_64 isused.

[Andi Kleen]

> I'm not certain I caught everything but as far as I know I did.
> Part of that was by having the code run at a fixed virtual address so
> we still live in the last 2GB of the virtual address space.

You changed the -2GB (or rather -40MB unpatched) mapping to not necessarily 
be linear? There are a couple of assumptions that it is, including at boot up
(it doubles as the 1:1 mapping then) and in change_page_attr() and in suspend/resume.

-Andi
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