Bug#900581: linux: Enable Buster kernel features for newer ARM64 servers.

[Riku Voipio <riku.voipio@iki.fi>]

On Thu, Jun 14, 2018 at 09:58:56AM +0100, Ian Campbell wrote:
> On Wed, 2018-06-13 at 12:25 -0700, Geoff Levand wrote:
> > On 06/09/2018 05:15 AM, Ian Campbell wrote:
> > 
> > > I think this is probably something for the arch (or perhaps
> > > platform)
> > > code to deal with. See for example all the various platform quirks
> > > in
> > > arch/x86/kernel/acpi/boot.c, which fixup various wrongness and/or
> > > disable features.
> > 
> > I followed your advice and created a fix in the arm64 acpi init
> > code of arch/arm64/kernel/acpi.c.  Here's the submission:
> > 
> >   https://marc.info/?l=linux-acpi&m=152891415600796&w=2
> >   https://www.spinics.net/lists/linux-acpi/msg82887.html
> 
> Thanks!

Thanks indeed - unfortunately we seem to be endind up in 
a dead end with the upstream developers:

https://www.spinics.net/lists/arm-kernel/msg669674.html

Considering HPE didn't actually release the firmware, I think we
can go with just enabling the options and documenting the command line
option.

Riku