From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Linux EFI <linux-efi@vger.kernel.org>,
Matt Fleming <matt@console-pimps.org>,
Jiri Kosina <jkosina@suse.cz>, X86-ML <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>, Borislav Petkov <bp@suse.de>
Subject: Re: [PATCH 0/4] EFI 1:1 mapping
Date: Mon, 3 Jun 2013 15:32:52 +0100 [thread overview]
Message-ID: <20130603143252.GB20252@srcf.ucam.org> (raw)
In-Reply-To: <20130603081148.GB13607@nazgul.tnic>
On Mon, Jun 03, 2013 at 10:11:48AM +0200, Borislav Petkov wrote:
> On Sun, Jun 02, 2013 at 11:56:20PM +0100, Matthew Garrett wrote:
> > I've just run Windows 8 under a hacked up copy of OVMF that dumps
> > the data passed to SetVirtualAddressMap. It seems that Windows *is*
> > mapping the runtime services to higher addresses - so presumably the
> > 1:1 mapping is in addition to the virtual mapping.
>
> But but, once we call SetVirtualAddressMap with the set of addresses of
> the runtime services, only those can be used after, right? If so, we
> can't have both (this is at least my understanding)...
We can only pass one set of addresses to SetVirtualAddressMap(), but it
doesn't seem like there's any intrinsic reason we can't the runtime
regions mapped to multiple virtual addresses.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2013-06-03 14:32 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-02 12:56 [PATCH 0/4] EFI 1:1 mapping Borislav Petkov
[not found] ` <1370177770-26661-1-git-send-email-bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
2013-06-02 12:56 ` [PATCH 1/4] efi: Convert runtime services function ptrs Borislav Petkov
2013-06-06 10:07 ` Matt Fleming
[not found] ` <20130606100745.GF30420-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-06-11 6:49 ` Matt Fleming
[not found] ` <20130611064912.GG31198-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-06-11 9:33 ` Borislav Petkov
2013-06-02 12:56 ` [PATCH 2/4] x86, cpa: Map in an arbitrary pgd Borislav Petkov
[not found] ` <1370177770-26661-3-git-send-email-bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
2013-06-06 10:22 ` Matt Fleming
[not found] ` <20130606102233.GG30420-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-06-06 13:24 ` Borislav Petkov
2013-06-06 13:30 ` Matt Fleming
[not found] ` <20130606133023.GJ30420-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-06-06 13:33 ` Borislav Petkov
2013-06-02 12:56 ` [PATCH 3/4] x86, efi: Add an efi= kernel command line parameter Borislav Petkov
[not found] ` <1370177770-26661-4-git-send-email-bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
2013-06-04 12:18 ` Borislav Petkov
2013-06-06 10:42 ` Matt Fleming
[not found] ` <20130606104224.GH30420-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-06-06 13:26 ` Borislav Petkov
[not found] ` <20130606132603.GD20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 13:36 ` Matt Fleming
2013-06-06 17:50 ` Matthew Garrett
[not found] ` <20130606175052.GA1285-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-06 18:51 ` Borislav Petkov
[not found] ` <20130606185140.GK20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 19:35 ` Matthew Garrett
[not found] ` <20130606193548.GA2946-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-06 19:41 ` Borislav Petkov
[not found] ` <20130606194134.GN20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 19:54 ` Matthew Garrett
2013-06-06 20:07 ` Borislav Petkov
[not found] ` <20130606200705.GO20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 20:18 ` Matthew Garrett
2013-06-06 20:27 ` Borislav Petkov
[not found] ` <20130606202717.GP20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 20:30 ` Matthew Garrett
[not found] ` <20130606203057.GA4237-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-06 20:44 ` Borislav Petkov
[not found] ` <20130606204410.GQ20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 20:50 ` Matthew Garrett
[not found] ` <20130606205057.GA4363-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-06 21:02 ` Borislav Petkov
[not found] ` <20130606210218.GR20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 21:03 ` Matthew Garrett
2013-06-02 12:56 ` [PATCH 4/4] x86, efi: Map runtime services 1:1 Borislav Petkov
[not found] ` <1370177770-26661-5-git-send-email-bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>
2013-06-06 13:14 ` Matt Fleming
[not found] ` <20130606131439.GI30420-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-06-06 13:29 ` Borislav Petkov
[not found] ` <20130606132908.GE20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 15:58 ` Borislav Petkov
2013-06-06 19:28 ` H. Peter Anvin
[not found] ` <51B0E2D4.3040007-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2013-06-06 19:36 ` Borislav Petkov
[not found] ` <20130606193612.GM20972-fF5Pk5pvG8Y@public.gmane.org>
2013-06-06 19:38 ` H. Peter Anvin
[not found] ` <51B0E522.4070005-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2013-06-10 12:55 ` Borislav Petkov
2013-06-02 22:56 ` [PATCH 0/4] EFI 1:1 mapping Matthew Garrett
[not found] ` <20130602225620.GA5496-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-03 8:11 ` Borislav Petkov
[not found] ` <20130603081148.GB13607-K5JNixvcfoxupOikMc4+xw@public.gmane.org>
2013-06-03 14:27 ` James Bottomley
2013-06-03 14:30 ` Matthew Garrett
2013-06-03 14:38 ` James Bottomley
2013-06-03 15:21 ` Matthew Garrett
2013-06-03 16:18 ` James Bottomley
2013-06-03 16:24 ` Matthew Garrett
[not found] ` <20130603162435.GA22563-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-03 16:35 ` James Bottomley
2013-06-03 16:42 ` Matthew Garrett
[not found] ` <20130603164237.GA23146-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-03 18:05 ` James Bottomley
2013-06-03 18:11 ` Matthew Garrett
[not found] ` <20130603181110.GA25060-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-03 21:19 ` James Bottomley
2013-06-03 21:29 ` Matthew Garrett
2014-02-10 3:59 ` Linux, UEFI, and Chromebooks (was RE: [PATCH 0/4] EFI 1:1 mapping) Yuhong Bao
2013-06-03 14:32 ` Matthew Garrett [this message]
[not found] ` <20130603143252.GB20252-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-03 14:54 ` [PATCH 0/4] EFI 1:1 mapping Matt Fleming
[not found] ` <20130603145412.GJ2004-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-06-04 8:15 ` Borislav Petkov
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