lkml.org 
[lkml]   [2018]   [Feb]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [tip:x86/boot] x86/boot/compressed/64: Prepare trampoline memory
On Mon, Feb 26, 2018 at 11:15:34AM +0300, Cyrill Gorcunov wrote:
> On Mon, Feb 26, 2018 at 11:02:56AM +0300, Kirill A. Shutemov wrote:
> ...
> > > Also, could do a puts() hexdump of the affected memory area _before_ we overwrite
> > > it? Is it empty? Could we add some debug warning that checks that it's all zeroes?
> >
> > The problem is that we don't really have a way get a message out of there.
> >
> > http://lkml.kernel.org/r/793b9c55-e85b-97b5-c857-dd8edcda4081@zytor.com
> >
>
> I'm sorry for stepping in (since I didn't follow the series in details)
> but can't we use vga memory here and print this early data tere?

I have no idea how to do this :/

And what about systems without monitor at all?

--
Kirill A. Shutemov

\
 
 \ /
  Last update: 2018-02-26 09:38    [W:0.074 / U:2.616 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site