Messages in this thread | | | Date | Tue, 19 Jul 2011 12:19:34 +0100 | From | Matthew Garrett <> | Subject | Re: [PATCH] x86: serialize EFI time accesses on rtc_lock |
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On Tue, Jul 19, 2011 at 11:53:07AM +0100, Jan Beulich wrote: > The EFI specification requires that callers of the time related runtime > functions serialize with other CMOS accesses in the kernel, as the EFI > time functions may choose to also use the legacy CMOS RTC. > > Besides fixing a latent bug, this is a prerequisite to safely enable > the rtc-efi driver for x86, which ought to be preferred over rtc-cmos > on all EFI platforms.
ACK in principle, although I've just merged this and the IA64 code together which makes that more awkward. I can fix it up, though.
-- Matthew Garrett | mjg59@srcf.ucam.org
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