From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Narendra.K@dell.com
Cc: Mario.Limonciello@dell.com,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
linux-efi <linux-efi@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
James Morse <james.morse@arm.com>,
Xiaofei Tan <tanxiaofei@huawei.com>
Subject: Re: [PATCH 4/5] efi: Export Runtime Configuration Interface table to sysfs
Date: Tue, 1 Oct 2019 20:23:51 +0200 [thread overview]
Message-ID: <CAMuHMdUMh4mCczCOxFtLn3E0Wu84ixFBsFuXk0p9QVXtg4dmoQ@mail.gmail.com> (raw)
In-Reply-To: <20191001180133.GA2279@localhost.localdomain>
Hi Narendra,
On Tue, Oct 1, 2019 at 8:01 PM <Narendra.K@dell.com> wrote:
> On Tue, Oct 01, 2019 at 01:20:46PM +0000, Limonciello, Mario wrote:
> [...]
> > > > > > > +config EFI_RCI2_TABLE
> > > > > > > + bool "EFI Runtime Configuration Interface Table Version 2 Support"
> > > > > > > + help
> > > > > > > + Displays the content of the Runtime Configuration Interface
> > > > > > > + Table version 2 on Dell EMC PowerEdge systems as a binary
> > > > > > > + attribute 'rci2' under /sys/firmware/efi/tables directory.
> > > > > > > +
> > > > > > > + RCI2 table contains BIOS HII in XML format and is used to populate
> > > > > > > + BIOS setup page in Dell EMC OpenManage Server Administrator tool.
> > > > > > > + The BIOS setup page contains BIOS tokens which can be configured.
> > > > > > > +
> > > > > > > + Say Y here for Dell EMC PowerEdge systems.
> > > > > >
> > > > > > A quick Google search tells me these are Intel Xeon.
> > > > > > Are arm/arm64/ia64 variants available, too?
> > > > > > If not, this should be protected by "depends on x86" ("|| COMPILE_TEST"?).
> > > > >
> > > > > The code in question is entirely architecture agnostic, and defaults
> > > > > to 'n', so I am not convinced this is needed. (It came up in the
> > > > > review as well)
> > > >
> > > > "make oldconfig" still asks me the question on e.g. arm64, where it is
> > > > irrelevant, until arm64 variants of the hardware show up.
> > > >
> > > > So IMHO it should have "depends on X86 || COMPILE_TEST".
> > > >
> > >
> > > Fair enough. I am going to send out a bunch of EFI fixes this week, so
> > > I'll accept a patch that makes the change above.
> >
> > Is it really a problem to just say n?
> >
> > I think this seems like a needless change that would slow down adoption of
> > !x86 if Dell EMC PowerEdge systems did start going that route, especially
> > when it comes to distributions that move glacially slow with picking up new
> > kernel code.
>
> Hi Ard/Geert,
>
> Any additional thoughts here ?
Sure ;-)
A typical platform-specific sarm/arm64 .config file has almost 3000
config options
disabled. Hence that means I have to say "n" almost 3000 times.
Fortunately I started doing this several years ago, so I can do this
incrementally ;-)
Perhaps someone should try to remove all lines like "depends on ... ||
COMPILE_TEST", run "make oldconfig", read all help texts before saying "n",
and time the whole operation...
I hope I managed to convince you of the benefits.
Thanks!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2019-10-01 18:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 15:04 [GIT PULL 0/5] EFI updates for v5.4 Ard Biesheuvel
2019-08-12 15:04 ` [PATCH 1/5] efi: x86: move efi_is_table_address() into arch/x86 Ard Biesheuvel
2019-08-12 15:04 ` [PATCH 2/5] efi/x86: move UV_SYSTAB handling " Ard Biesheuvel
2019-08-12 15:04 ` [PATCH 3/5] efi: ia64: move SAL systab handling out of generic EFI code Ard Biesheuvel
2019-08-12 15:04 ` [PATCH 4/5] efi: Export Runtime Configuration Interface table to sysfs Ard Biesheuvel
2019-10-01 8:51 ` Geert Uytterhoeven
2019-10-01 8:54 ` Ard Biesheuvel
2019-10-01 9:03 ` Geert Uytterhoeven
2019-10-01 9:41 ` Ard Biesheuvel
2019-10-01 13:20 ` Mario.Limonciello
2019-10-01 18:01 ` Narendra.K
2019-10-01 18:23 ` Geert Uytterhoeven [this message]
2019-10-02 10:22 ` Narendra.K
2019-10-02 19:49 ` Narendra.K
2019-08-12 15:04 ` [PATCH 5/5] efi: cper: print AER info of PCIe fatal error Ard Biesheuvel
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