[PATCH][RFC] x86_64: Reload CS when startup_64 is used.
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Andi Kleen <ak at suse.de> writes: >> 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? I left it linear but I removed assumptions about which physical address it goes to. > 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. Yes. Those all sound familiar. I removed the doubling as the 1:1 physical mapping. Eric
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