Re: 3gb/1gb

On 2008-09-04 at 21:54:23 [+0200], Rene Gollent <[email protected]> wrote:
> 
> Just wondering how difficult would it be for our VM to support doing a
> 3GB/1GB address space split instead of 2/2? I realize it might not be
> so important right now, but as it becomes more common for machines to
> have 2GB+ it'd probably be helpful in the short term, at least until
> we support 64-bit natively.

I don't think it's particularly complicated. I believe it would mainly be 
changing a few macros (specifying user/kernel address space, and the location 
of a few other things) and maybe a hardcoded value here and there.

I might misunderstand your argument, but having more than 2 GB of physical 
RAM has not much to do with how the address space is split. The only reason 
for changing the split would be applications using more than 2 GB of virtual 
memory. ATM I don't see any candidates, though.

CU, Ingo

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