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

From: Kirill A. Shutemov
Date: Thu Nov 30 2017 - 02:32:10 EST


On Wed, Nov 29, 2017 at 05:48:51PM +0000, Borislav Petkov wrote:
> On Wed, Nov 29, 2017 at 08:08:31PM +0300, Kirill A. Shutemov wrote:
> > We're really early in the boot -- startup_64 in decompression code -- and
> > I don't know a way print a message there. Is there a way?
> >
> > no_longmode handled by just hanging the machine. Is it enough for no_la57
> > case too?
>
> Patch pls.

The patch below on top of patch 2/4 from this patch would do the trick.

Please give it a shot.