Re: [rfc 08/45] cpu alloc: x86 support

Christoph Lameter
2007-11-20T03:50:17Z

On Tue, 20 Nov 2007, Andi Kleen wrote:

> I might be pointing out the obvious, but on x86-64 there is definitely not
> 256TB of VM available for this.

Well maybe in the future.

One of the issues that I ran into is that I had to place the cpu area
in between to make the offsets link right.

However, it would be best if the cpuarea came *after* the modules area. We
only need linking that covers the per cpu area of processor 0.

So I think we have a 2GB area right?

1GB kernel
1GB - 1x per cpu area (128M?) modules?
cpu aree 0
---- 2GB limit
cpu area 1
cpu area 2
....

For that we would need to move the kernel down a bit. Can we do that?