Re: [PATCHv6 0/4] x86: 5-level related changes into decompression code<Paste>

[Ingo Molnar]

* Kirill A. Shutemov <kirill@xxxxxxxxxxxxx> wrote:

> On Tue, Dec 12, 2017 at 04:57:35PM +0300, Kirill A. Shutemov wrote:
> > Here's few changes to x86 decompression code.
> > 
> > The first patch is pure cosmetic change: it gives file with KASLR helpers
> > a proper name.
> > 
> > The last three patches bring support of booting into 5-level paging mode if
> > a bootloader put the kernel above 4G.
> > 
> > Patch 2/4 Renames l5_paging_required() into paging_prepare() and change
> > interface of the function.
> > Patch 3/4 Handles allocation of space for trampoline and gets it prepared.
> > Patch 4/4 Gets trampoline used.
> > 
> > Kirill A. Shutemov (4):
> >   x86/boot/compressed/64: Rename pagetable.c to kaslr_64.c
> >   x86/boot/compressed/64: Introduce paging_prepare()
> >   x86/boot/compressed/64: Prepare trampoline memory
> >   x86/boot/compressed/64: Handle 5-level paging boot if kernel is above
> >     4G
> 
> Ingo, does it look fine now?

Yes, it looks structurally much better now - but we first need to address all 
existing regressions before we can move forward.

( Also, the PTI work created a bit of a distraction as well, but x86 patch 
  integration should should be back to speed soon. )

Thanks,

	Ingo