Messages in this thread | | | From | (Eric W. Biederman) | Subject | Re: [Fastboot] [PATCH][RFC] x86_64: Reload CS when startup_64 is used. | Date | Mon, 21 Aug 2006 14:02:16 -0600 |
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Andi Kleen <ak@suse.de> writes:
> On Monday 21 August 2006 16:46, Vivek Goyal wrote: >> On Mon, Aug 21, 2006 at 04:24:10PM +0200, Andi Kleen wrote: >> > >> > > Given the idea of relocatable kernel is floating around I would prefer if >> > > we are not bounded by the restriction of loading a kernel in lowest 4G. >> > >> > There is already other code that requires this. In fact i don't think it can >> > be above 40MB currently. >> > >> >> But I think Eric's prototype patches for relocatable kernel do get over >> this limitation (Hope I understood the code right). Assuming that relocatable >> kernel patches will be merged down the line, it would be nice not to be >> bound by 4G limitation. > > He may have fixed the 40MB issue, but I very much doubt he changed the 2GB > limitation because that would be a major change.
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.
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