Message-ID: <52001DF6.4010701@zytor.com>
Date: Mon, 05 Aug 2013 14:49:42 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Borislav Petkov <bp@alien8.de>
CC: Andrew Fish <afish@apple.com>, edk2-devel@lists.sourceforge.net,
        Laszlo Ersek <lersek@redhat.com>, linux-efi@vger.kernel.org,
        Gleb Natapov <gleb@redhat.com>, lkml <linux-kernel@vger.kernel.org>,
        David Woodhouse <dwmw2@infradead.org>
Subject: Re: [edk2] Corrupted EFI region
References: <20130801164927.GA7445@pd.tnic> <51FF8C14.2070405@redhat.com> <20130805130258.GB31845@pd.tnic> <51FFAB13.4090603@redhat.com> <20130805140306.GD31845@pd.tnic> <51FFB660.4060400@redhat.com> <20130805144010.GE31845@pd.tnic> <2DBE3EA4-E321-4A7B-B9AF-EDE55BC2E358@apple.com> <20130805181225.GH31845@pd.tnic> <52001B04.2050806@zytor.com> <20130805214140.GB14067@pd.tnic>
In-Reply-To: <20130805214140.GB14067@pd.tnic>
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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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