Re: [PATCHv2 0/4] x86: 5-level related changes into decompression code

[Borislav Petkov]

On Sat, Nov 11, 2017 at 01:06:41AM +0300, Kirill A. Shutemov wrote:
> Hi Ingo,
> 
> Here's updated changes that prepare the code to boot-time switching between
> paging modes and handle booting in 5-level mode when bootloader put kernel
> image above 4G, but haven't enabled 5-level paging for us.

Btw, if I enable CONFIG_X86_5LEVEL with 4.15-rc1 on an AMD box, the box
triple-faults and ends up spinning in a reboot loop. Even though it
should say:

early console in setup code
This kernel requires the following features not present on the CPU:
la57 
Unable to boot - please use a kernel appropriate for your CPU.

and halt.

A kvm guest still does that but baremetal triple-faults.

Ideas?

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Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix ImendÃrffer, Jane Smithard, Graham Norton, HRB 21284 (AG NÃrnberg)
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