lkml.org 
[lkml]   [2013]   [Sep]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH -v2] EFI: Runtime services virtual mapping
On Mon, Sep 30, 2013 at 11:06:46PM +0200, Borislav Petkov wrote:
> On Mon, Sep 30, 2013 at 04:46:42PM -0400, Vivek Goyal wrote:
> > On Mon, Sep 30, 2013 at 10:41:54PM +0200, Borislav Petkov wrote:
> >
> > [..]
> > > hpa, so, for the struct efi_mapping thing to work, I will have to grep
> > > dmesg of the first kernel to get an output like the one below, filter
> > > the runtime regions so that I can build the struct efi_mapping array of
> > > mem regions which I pass on to the second, kexec kernel with setup_data.
> >
> > Any data you need to pass to second kernel will have to be exported to
> > user space either using /sys or /proc so that kexec-tools can parse it.
>
> And I cannot parse dmesg? Because I have all the info there already.

dmesg can 't relied on. It is just a kernel buffer which root can
clear. (dmesg --clear). So required info has to be exported to user
space in a suitable form.

Thanks
Vivek


\
 
 \ /
  Last update: 2013-09-30 23:21    [W:5.055 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site