lkml.org 
[lkml]   [2013]   [Oct]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 2/3] arm: Add [U]EFI runtime services support
From
Date
On Thu, 2013-10-17 at 16:31 +0200, Leif Lindholm wrote:
> On Thu, Oct 17, 2013 at 03:07:39PM +0100, Matt Fleming wrote:
> > > +/*
> > > + * If you need to (temporarily) support buggy firmware.
> > > + */
> > > +#define KEEP_BOOT_SERVICES_REGIONS
> >
> > Have you seen firmware that requires this? I'm just curious more than
> > anything else.
>
> Not really.
> I _think_ I saw it on a debug build of a development platform once.
> That coincided with me seeing a post on linux-efi about some laptop
> that broke unless boot services regions were preserved, so I decided
> to put it in there for any future debugging.
>

I see a fairly consistent segfault when the arm64 kernel calls the
SetVirtualAddressMap function. It doesn't happen when the boot services
regions are included in the mapping. This is with edk2 firmware. I
haven't really dug into where it goes wrong.




\
 
 \ /
  Last update: 2013-10-17 23:21    [W:0.045 / U:5.208 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site