On Fri, Mar 17, 2017 at 11:47:16AM +0100, Paolo Bonzini wrote:
> Theoretically or practically?
In the sense, it needs to be tried first to see how ugly it can get.
> It only looks at the E820 map, doesn't it? Why does it have to do
> anything with percpu memory areas?
That's irrelevant. What we want to do is take what's in init_mm.pgd and
modify it. And use the facilities in arch/x86/mm/init_{32,64}.c because
they already know about early/late pagetable pages allocation and they
deal with the kernel pagetable anyway.
And *not* teach pageattr.c about memblock because that can be misused,
as tglx pointed out on IRC.
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Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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