Bug#900581: linux: Enable Buster kernel features for newer ARM64 servers.
On Tue, Sep 04, 2018 at 11:43:07AM -0700, Geoff Levand wrote:
> > Is it resolved? Graeme Gregory claimed
> > (https://www.spinics.net/lists/arm-kernel/msg669946.html) that "most
> > people are running the firmware provided from HPe support but was never
> > put on release site".
>
> I took that as just a comment on the discussion which it follows, which
> seemed to end with 'distro maintainers deciding how to handle the problem'
> and then Riku recommending to document the need in Debian for a m400
> specific command line option.
Generally I'm just dissapointed the way upstream discussion turned out,
and willing to throw hands in the air.
Given it seems ACPI only really worked on moonshot with an unofficial
firmware, out-of-box working isn't that meaningful anyways.
> At this point I feel our choices are:
>
> 1) Merge the kernel config patch I proposed and add a comment to
> the arm64 Installation Guide about the need to add 'hest_disable=1'
> to the kernel command line for the m400.
I think that people capable of running an unnofficial firmware are also
capable of setting and kernel command line option.
> 2) Merge the kernel config patch and the
> 'Add fix for broken HPE moonshot ACPI-APEI support' patch I proposed.
Personally I'd prefer to avoid accumating delta against upstream, but
Geoff's patch is quite low-impact.
> 3) Remove the CONFIG_ACPI_APEI options from the the kernel config patch
> I proposed and merge that.
We should really enable APEI support for the benefit of platforms that
do support it.
Riku
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