linux-kernel - Re: Why efi_set_rtc

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Message-ID: <20140614173258.GF3463@olila.local.net-space.pl>
Date:	Sat, 14 Jun 2014 19:32:58 +0200
From:	Daniel Kiper <daniel.kiper@...cle.com>
To:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
Cc:	linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, xen-devel@...ts.xenproject.org,
	boris.ostrovsky@...cle.com, david.vrabel@...rix.com, hpa@...or.com,
	jbeulich@...e.com, konrad.wilk@...cle.com, matt.fleming@...el.com,
	mingo@...hat.com, tglx@...utronix.de
Subject: Re: Why efi_set_rtc_mmss() is never used?

On Mon, Jun 09, 2014 at 01:46:35PM +0100, One Thousand Gnomes wrote:
> On Mon, 9 Jun 2014 13:08:00 +0200
> Daniel Kiper <daniel.kiper@...cle.com> wrote:
>
> > Hi,
> >
> > As I can see efi_set_rtc_mmss() is never used to set RTC.
> > Even on EFI platform mach_set_rtc_mmss() is called and does
> > that thing. Why it is done in that way? It is a bug or it was
> > done intentionally. Am I missing something?
>
> EFI services generally don't work properly. The less they are used the
> better. We can realistically only make an EFI call with the same
> parameters windows does under the same kind of circumstances because the
> firmware on many motherboards is complete sh*te.

Thanks. Sadly it makes sens.

Daniel
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