linux-kernel - Re: [edk2] Corrupted EFI region

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Message-ID: <52001DF6.4010701@zytor.com>
Date:	Mon, 05 Aug 2013 14:49:42 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Borislav Petkov <bp@...en8.de>
CC:	Andrew Fish <afish@...le.com>, edk2-devel@...ts.sourceforge.net,
	Laszlo Ersek <lersek@...hat.com>, linux-efi@...r.kernel.org,
	Gleb Natapov <gleb@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: [edk2] Corrupted EFI region

On 08/05/2013 02:41 PM, Borislav Petkov wrote:
> On Mon, Aug 05, 2013 at 02:37:08PM -0700, H. Peter Anvin wrote:
>> All of this would be a non-problem if there weren't buggy
>> implementations which can't run *without* SetVirtualAddressMap().
> 
> Oh, you mean, if we were to call the runtime services through their
> physical addresses?
> 

Yes.  It is supposed to work, but at least on some Apple machines it
triggers bugs.

	-hpa

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