linux-kernel - Re: [PATCH][EFI] Run EFI in physical mode

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Message-ID: <4C65C630.4070008@zytor.com>
Date:	Fri, 13 Aug 2010 15:24:48 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Takao Indoh <indou.takao@...fujitsu.com>
CC:	linux-kernel@...r.kernel.org, kexec@...ts.infradead.org,
	ebiederm@...ssion.com, tglx@...utronix.de, mingo@...hat.com,
	vgoyal@...hat.com, nhorman@...driver.com,
	"Luck, Tony" <tony.luck@...el.com>
Subject: Re: [PATCH][EFI] Run EFI in physical mode

On 08/13/2010 12:18 PM, Takao Indoh wrote:
> 
> Basically EFI is in physical mode at first and it's switched to virtual
> mode after calling SetVirtualAddressMap. By applying this patch, you can
> run EFI always in physical mode. And you can also specify "virtefi" as
> kernel boot parameter to run EFI in virtual mode as before. Note that
> this patch supports only x86_64.
> 

Any hope to get a followon patch for i386 as well?  That would make it
largely a no-brainer.

Tony, does this affect ia64 in any way?

	-hpa
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