From: Ian Campbell <ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
To: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Daniel Kiper
<daniel.kiper-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Konrad Rzeszutek Wilk
<konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
Stefano Stabellini
<stefano.stabellini-mvvWK6WmYclDPfheJLI6IQ@public.gmane.org>,
"leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
<leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org"
<xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org>,
"matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org"
<matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
<christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"jbeulich-IBi9RG/b67k@public.gmane.org"
<jbeulich-IBi9RG/b67k@public.gmane.org>,
Shannon Zhao
<zhaoshenglong-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
"julien.grall-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org"
<julien.grall-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>,
"peter.huangpeng-hv44wF8Li93QT0dZR+AlfA@public.gmane.org"
<peter.huangpeng-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"shannon.zhao-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org"
<shannon.zhao-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH] efi/libstub/fdt: Standardize the names of EFI stub parameters
Date: Mon, 14 Sep 2015 11:25:25 +0100 [thread overview]
Message-ID: <1442226325.3549.134.camel@citrix.com> (raw)
In-Reply-To: <CAKv+Gu_Gh649EwdtodLY9Q28JhqYg8o6RShXXH1ZbxsfYRfi2Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Mon, 2015-09-14 at 12:02 +0200, Ard Biesheuvel wrote:
> On 14 September 2015 at 11:57, Ian Campbell <ian.campbell-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org> wrote:
> > > or SetVirtualAddressMap/ConvertPointer, and
> >
> > These two are RTS, so in principal it could.
> >
> > (I'm not sure about ConvertPointer, is it useful for OS kernels, or
> > just
> > for "UEFI components" mentioned at
> > http://wiki.phoenix.com/wiki/index.php/E
> > FI_RUNTIME_SERVICES#ConvertPointer.28.29 ?)
> >
>
> No, there is no point. The stub calls SetVirtualAddressMap, so the
> kernel proper can never call it, since it can only be called once.
I see. And changing this such that it was delayed until the kernel proper
would be a _major_ shift in the policy of separation between the UEFI stub
and the kernel proper.
> ConvertPointer has little utility outside of the UEFI runtime
> components that are invoked during SetVirtualAddressMap,
That's the impression I was getting too. Thanks for confirming.
> so I don't see a reason to supply that either.
Ack.
Ian.
WARNING: multiple messages have this Message-ID (diff)
From: ian.campbell@citrix.com (Ian Campbell)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] efi/libstub/fdt: Standardize the names of EFI stub parameters
Date: Mon, 14 Sep 2015 11:25:25 +0100 [thread overview]
Message-ID: <1442226325.3549.134.camel@citrix.com> (raw)
In-Reply-To: <CAKv+Gu_Gh649EwdtodLY9Q28JhqYg8o6RShXXH1ZbxsfYRfi2Q@mail.gmail.com>
On Mon, 2015-09-14 at 12:02 +0200, Ard Biesheuvel wrote:
> On 14 September 2015 at 11:57, Ian Campbell <ian.campbell@citrix.com> wrote:
> > > or SetVirtualAddressMap/ConvertPointer, and
> >
> > These two are RTS, so in principal it could.
> >
> > (I'm not sure about ConvertPointer, is it useful for OS kernels, or
> > just
> > for "UEFI components" mentioned at
> > http://wiki.phoenix.com/wiki/index.php/E
> > FI_RUNTIME_SERVICES#ConvertPointer.28.29 ?)
> >
>
> No, there is no point. The stub calls SetVirtualAddressMap, so the
> kernel proper can never call it, since it can only be called once.
I see. And changing this such that it was delayed until the kernel proper
would be a _major_ shift in the policy of separation between the UEFI stub
and the kernel proper.
> ConvertPointer has little utility outside of the UEFI runtime
> components that are invoked during SetVirtualAddressMap,
That's the impression I was getting too. Thanks for confirming.
> so I don't see a reason to supply that either.
Ack.
Ian.
next prev parent reply other threads:[~2015-09-14 10:25 UTC|newest]
Thread overview: 182+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-10 8:41 [PATCH] efi/libstub/fdt: Standardize the names of EFI stub parameters Shannon Zhao
2015-09-10 8:41 ` Shannon Zhao
2015-09-10 8:41 ` Shannon Zhao
2015-09-10 9:52 ` Mark Rutland
[not found] ` <1441874516-11364-1-git-send-email-zhaoshenglong-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2015-09-10 9:52 ` Mark Rutland
2015-09-10 9:52 ` Mark Rutland
2015-09-10 9:52 ` Mark Rutland
2015-09-10 10:19 ` Stefano Stabellini
2015-09-10 10:19 ` Stefano Stabellini
2015-09-10 10:19 ` Stefano Stabellini
[not found] ` <alpine.DEB.2.02.1509101116580.2672-7Z66fg9igcxYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
2015-09-10 11:24 ` Mark Rutland
2015-09-10 11:24 ` Mark Rutland
2015-09-10 11:24 ` Mark Rutland
2015-09-10 11:37 ` Stefano Stabellini
2015-09-10 11:37 ` Stefano Stabellini
2015-09-10 11:37 ` Stefano Stabellini
2015-09-10 11:37 ` Stefano Stabellini
2015-09-10 12:15 ` Mark Rutland
2015-09-10 12:15 ` Mark Rutland
2015-09-10 12:15 ` Mark Rutland
2015-09-10 12:15 ` Mark Rutland
2015-09-10 12:58 ` [Xen-devel] " Ian Campbell
2015-09-10 12:58 ` Ian Campbell
2015-09-10 12:58 ` Ian Campbell
2015-09-10 13:08 ` Jan Beulich
2015-09-10 13:08 ` Jan Beulich
2015-09-10 13:08 ` Jan Beulich
[not found] ` <55F19D0202000078000A1B54-rw/UEucdPrvD8XXLLHKrIiOjQekVJEpY@public.gmane.org>
2015-09-10 13:30 ` Ian Campbell
2015-09-10 13:30 ` Ian Campbell
2015-09-10 13:30 ` Ian Campbell
2015-09-10 13:30 ` Ian Campbell
2015-09-10 13:08 ` Jan Beulich
2015-09-10 12:58 ` Ian Campbell
2015-09-10 13:52 ` Stefano Stabellini
2015-09-10 13:52 ` Stefano Stabellini
2015-09-10 13:52 ` Stefano Stabellini
2015-09-10 13:52 ` Stefano Stabellini
[not found] ` <alpine.DEB.2.02.1509101429480.2672-7Z66fg9igcxYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
2015-09-10 14:13 ` Leif Lindholm
2015-09-10 14:13 ` Leif Lindholm
2015-09-10 14:13 ` Leif Lindholm
2015-09-10 14:49 ` Mark Rutland
2015-09-10 14:49 ` Mark Rutland
2015-09-10 14:49 ` Mark Rutland
2015-09-10 16:10 ` Stefano Stabellini
2015-09-10 16:10 ` Stefano Stabellini
2015-09-10 16:10 ` Stefano Stabellini
2015-09-10 16:23 ` Mark Rutland
2015-09-10 16:23 ` Mark Rutland
2015-09-10 16:23 ` Mark Rutland
2015-09-11 12:46 ` Daniel Kiper
2015-09-11 12:46 ` Daniel Kiper
2015-09-11 12:46 ` Daniel Kiper
2015-09-11 13:14 ` Stefano Stabellini
2015-09-11 16:25 ` Mark Rutland
[not found] ` <20150911124643.GB4530-fJNZiO034lp9pOct4yEdx/3oZC3j2Omk@public.gmane.org>
2015-09-11 13:14 ` Stefano Stabellini
2015-09-11 13:14 ` Stefano Stabellini
2015-09-11 13:14 ` Stefano Stabellini
2015-09-11 13:30 ` Ard Biesheuvel
2015-09-11 13:30 ` Ard Biesheuvel
2015-09-11 13:30 ` Ard Biesheuvel
2015-09-11 13:30 ` Ard Biesheuvel
2015-09-11 15:45 ` Daniel Kiper
2015-09-11 15:45 ` Daniel Kiper
2015-09-11 15:45 ` Daniel Kiper
2015-09-11 15:45 ` Daniel Kiper
2015-09-14 8:42 ` Shannon Zhao
2015-09-14 8:42 ` Shannon Zhao
2015-09-14 8:42 ` Shannon Zhao
2015-09-14 9:09 ` Ard Biesheuvel
2015-09-14 9:09 ` Ard Biesheuvel
2015-09-14 9:09 ` Ard Biesheuvel
2015-09-14 9:09 ` Ard Biesheuvel
2015-09-14 9:31 ` Shannon Zhao
2015-09-14 9:31 ` Shannon Zhao
2015-09-14 9:31 ` Shannon Zhao
[not found] ` <55F693F5.8030203-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2015-09-14 9:36 ` Ard Biesheuvel
2015-09-14 9:36 ` Ard Biesheuvel
2015-09-14 9:36 ` Ard Biesheuvel
2015-09-14 10:39 ` Jan Beulich
[not found] ` <CAKv+Gu-2kyd3Gf3ceSa1jdgCjqJ8zBCesa4xehLiZ+VzergS3Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 10:39 ` [Xen-devel] " Jan Beulich
2015-09-14 10:39 ` Jan Beulich
2015-09-14 10:39 ` Jan Beulich
[not found] ` <55F6C01502000078000A2823-rw/UEucdPrvD8XXLLHKrIiOjQekVJEpY@public.gmane.org>
2015-09-14 11:16 ` Ard Biesheuvel
2015-09-14 11:16 ` Ard Biesheuvel
2015-09-14 11:16 ` Ard Biesheuvel
2015-09-14 11:34 ` Jan Beulich
[not found] ` <CAKv+Gu_k4-BqW7CQwB82-GfeXXNKk0bCjr=ZNFy1iDBNzKNWSg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 11:34 ` [Xen-devel] " Jan Beulich
2015-09-14 11:34 ` Jan Beulich
2015-09-14 11:34 ` Jan Beulich
2015-09-14 11:16 ` Ard Biesheuvel
2015-09-14 9:36 ` Ard Biesheuvel
2015-09-11 16:33 ` Mark Rutland
2015-09-11 16:33 ` Mark Rutland
2015-09-11 16:33 ` Mark Rutland
2015-09-11 16:33 ` Mark Rutland
2015-09-11 16:25 ` Mark Rutland
2015-09-11 16:25 ` Mark Rutland
2015-09-11 16:25 ` Mark Rutland
2015-09-12 11:36 ` Daniel Kiper
2015-09-12 11:36 ` Daniel Kiper
2015-09-12 11:36 ` Daniel Kiper
2015-09-12 11:36 ` Daniel Kiper
2015-09-14 9:25 ` Mark Rutland
2015-09-14 9:25 ` Mark Rutland
2015-09-14 9:25 ` Mark Rutland
2015-09-14 9:25 ` Mark Rutland
2015-09-14 9:43 ` Ard Biesheuvel
2015-09-14 9:43 ` Ard Biesheuvel
2015-09-14 9:43 ` Ard Biesheuvel
2015-09-14 9:57 ` Ian Campbell
[not found] ` <CAKv+Gu9ER1cKvPHobq-wo7ggPesJj4OQ7=aTr24GVpubHvVqjQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 9:57 ` Ian Campbell
2015-09-14 9:57 ` Ian Campbell
[not found] ` <1442224673.3549.131.camel-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
2015-09-14 10:02 ` Ard Biesheuvel
2015-09-14 10:02 ` Ard Biesheuvel
[not found] ` <CAKv+Gu_Gh649EwdtodLY9Q28JhqYg8o6RShXXH1ZbxsfYRfi2Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 10:25 ` Ian Campbell [this message]
2015-09-14 10:25 ` Ian Campbell
2015-09-14 10:25 ` Ian Campbell
2015-09-14 10:02 ` Ard Biesheuvel
2015-09-14 12:28 ` Daniel Kiper
2015-09-14 12:28 ` Daniel Kiper
[not found] ` <20150914122858.GI4530-fJNZiO034lp9pOct4yEdx/3oZC3j2Omk@public.gmane.org>
2015-09-14 13:09 ` Ard Biesheuvel
2015-09-14 13:09 ` Ard Biesheuvel
2015-09-14 13:57 ` Daniel Kiper
[not found] ` <CAKv+Gu_z2X=9-qgoKTS7dKLqtSUvysyu9LzZryJqcSR4X8Ss6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-09-14 13:57 ` Daniel Kiper
2015-09-14 13:57 ` Daniel Kiper
2015-09-14 13:09 ` Ard Biesheuvel
2015-09-14 12:28 ` Daniel Kiper
2015-09-14 9:47 ` Stefano Stabellini
2015-09-14 9:47 ` Stefano Stabellini
2015-09-14 9:47 ` Stefano Stabellini
2015-09-14 9:47 ` Stefano Stabellini
2015-09-14 12:19 ` Daniel Kiper
2015-09-14 12:19 ` Daniel Kiper
2015-09-14 12:19 ` Daniel Kiper
2015-09-14 12:19 ` Daniel Kiper
2015-09-11 12:46 ` Daniel Kiper
2015-09-10 16:23 ` Mark Rutland
2015-09-11 11:00 ` Ian Campbell
[not found] ` <alpine.DEB.2.02.1509101655020.2672-7Z66fg9igcxYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
2015-09-11 11:00 ` Ian Campbell
2015-09-11 11:00 ` Ian Campbell
2015-09-11 11:00 ` Ian Campbell
2015-09-10 16:10 ` Stefano Stabellini
2015-09-10 14:13 ` Leif Lindholm
2015-09-10 14:49 ` Mark Rutland
2015-09-10 12:55 ` Jan Beulich
2015-09-10 12:55 ` Jan Beulich
2015-09-10 12:55 ` Jan Beulich
2015-09-10 14:53 ` Mark Rutland
2015-09-10 14:53 ` Mark Rutland
2015-09-10 14:53 ` Mark Rutland
2015-09-10 15:06 ` Jan Beulich
2015-09-10 15:06 ` Jan Beulich
2015-09-10 15:06 ` Jan Beulich
2015-09-11 16:36 ` Mark Rutland
[not found] ` <55F1B89802000078000A1C9B-rw/UEucdPrvD8XXLLHKrIiOjQekVJEpY@public.gmane.org>
2015-09-11 16:36 ` Mark Rutland
2015-09-11 16:36 ` Mark Rutland
2015-09-11 16:36 ` Mark Rutland
2015-09-10 15:06 ` Jan Beulich
2015-09-10 12:55 ` Jan Beulich
2015-09-10 11:24 ` Mark Rutland
2015-09-10 10:19 ` Stefano Stabellini
2015-09-10 11:32 ` Andrew Turner
2015-09-10 11:32 ` Andrew Turner
2015-09-10 11:32 ` Andrew Turner
[not found] ` <20150910123251.7e0810d1-I/y7IllHY3//9pzu0YdTqQ@public.gmane.org>
2015-09-10 11:48 ` Julien Grall
2015-09-10 11:48 ` Julien Grall
2015-09-10 11:48 ` Julien Grall
2015-09-10 12:05 ` Roger Pau Monné
2015-09-10 12:05 ` Roger Pau Monné
2015-09-10 12:05 ` Roger Pau Monné
2015-09-10 12:05 ` Roger Pau Monné
[not found] ` <55F1721D.1010801-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
2015-09-10 12:53 ` [Xen-devel] " Julien Grall
2015-09-10 12:53 ` Julien Grall
2015-09-10 12:53 ` Julien Grall
2015-09-10 12:53 ` Julien Grall
2015-09-10 11:48 ` Julien Grall
2015-09-10 11:32 ` Andrew Turner
2015-09-17 11:43 ` Shannon Zhao
2015-09-17 11:43 ` Shannon Zhao
2015-09-17 11:43 ` Shannon Zhao
2015-09-17 11:43 ` Shannon Zhao
-- strict thread matches above, loose matches on Subject: below --
2015-09-10 8:41 Shannon Zhao
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