linux-kernel - Re: [RFC PATCH 00/14] Support timezone of ACPI TAD and EFI TIME

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Message-ID: <20131221122148.GB29501@console-pimps.org>
Date:	Sat, 21 Dec 2013 12:21:48 +0000
From:	Matt Fleming <matt@...sole-pimps.org>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	"H. Peter Anvin" <hpa@...or.com>, joeyli <jlee@...e.com>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Matthew Garrett <matthew.garrett@...ula.com>, Elliott@...com,
	samer.el-haj-mahmoud@...com, Oliver Neukum <oneukum@...e.de>,
	werner@...e.com, trenn@...e.de, JBeulich@...e.com,
	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com,
	x86@...nel.org,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	linux-acpi@...r.kernel.org, Borislav Petkov <bp@...e.de>
Subject: Re: [RFC PATCH 00/14] Support timezone of ACPI TAD and EFI TIME

On Fri, 20 Dec, at 11:18:56PM, Rafael J. Wysocki wrote:
> 
> I'm not sure 100%, but I *think* we need to do that with interrupts enabled.
> At least after mm_init(), because it relies on things initialized there if I
> remember correctly.
> 
> From what I can tell at the moment, it might be possible to move it before
> efi_enter_virtual_mode() if that would help.

Actually yeah, that would be super useful, and I think we'd be able to
get rid of the whole efi_late_init() stuff because we'd no longer need
to hang on to the EFI_BOOT_SERVICES* regions after
SetVirtualAddressMap().

-- 
Matt Fleming, Intel Open Source Technology Center
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