From: "H. Peter Anvin" <hpa@zytor.com>
To: Andy Lutomirski <luto@amacapital.net>,
"Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
mcb30@ipxe.org, Juergen Gross <jgross@suse.com>,
Jan Beulich <JBeulich@suse.com>, Joerg Roedel <joro@8bytes.org>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Andrey Konovalov <andreyknvl@google.com>,
long.wanglong@huawei.com, qiuxishi@huawei.com,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
valentinrothberg@gmail.com, peter.senna@gmail.com,
Luis Rodriguez <mcgrof@suse.com>, X86 ML <x86@kernel.org>,
Xen Devel <xen-devel@lists.xensource.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC v1 5/8] x86/init: move ebda reservations into linker table
Date: Thu, 17 Dec 2015 12:55:14 -0800 [thread overview]
Message-ID: <56732132.4080401@zytor.com> (raw)
In-Reply-To: <CALCETrW_rdxW9h0JDCG_a7PCbW88QOv2KMVdWrDwd+Zr5MfG0w@mail.gmail.com>
On 12/17/15 12:48, Andy Lutomirski wrote:
>
> I'm entirely ignorant of anything going on in gPXE/iPXE.
>
> Can you explain what a linker table *does*? It looks like all you've
> done in this patch is to move code around. What actually happens?
>
A linker table is a data structure that is stitched together from items
in multiple object files.
We already have a *bunch* of linker tables in Linux, mostly the init
tables, but they are all built in an ad hoc manner which requires linker
script modifications, which are of course per architecture.
My desire would be to make a general linker table facility so that a new
linker table can be implemented by changing C code only.
-hpa
next prev parent reply other threads:[~2015-12-17 20:55 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-15 22:16 [RFC v1 0/8] x86/init: Linux linker tables Luis R. Rodriguez
2015-12-15 22:16 ` [RFC v1 1/8] paravirt: rename paravirt_enabled to paravirt_legacy Luis R. Rodriguez
2016-01-20 19:32 ` Konrad Rzeszutek Wilk
2016-02-04 22:50 ` Luis R. Rodriguez
2015-12-15 22:16 ` [RFC v1 2/8] tables.h: add linker table support Luis R. Rodriguez
2016-01-20 20:04 ` Konrad Rzeszutek Wilk
2016-01-20 23:15 ` Michael Brown
2016-01-20 23:24 ` H. Peter Anvin
2015-12-15 22:16 ` [RFC v1 3/8] x86/boot: add BIT() to boot/bitops.h Luis R. Rodriguez
2016-01-20 20:17 ` Konrad Rzeszutek Wilk
2016-01-20 20:33 ` Luis R. Rodriguez
2015-12-15 22:16 ` [RFC v1 4/8] x86/init: add linker table support Luis R. Rodriguez
2016-01-20 20:45 ` Konrad Rzeszutek Wilk
2016-01-20 21:00 ` Konrad Rzeszutek Wilk
2016-01-20 21:33 ` Luis R. Rodriguez
2016-01-20 21:41 ` H. Peter Anvin
2016-01-20 22:12 ` Luis R. Rodriguez
2016-01-20 22:20 ` H. Peter Anvin
2016-01-22 0:25 ` Luis R. Rodriguez
2016-01-22 0:42 ` H. Peter Anvin
2016-02-11 20:45 ` Luis R. Rodriguez
2016-01-21 8:38 ` Roger Pau Monné
2016-01-21 13:45 ` Boris Ostrovsky
2016-01-21 19:25 ` H. Peter Anvin
2016-01-21 19:46 ` Luis R. Rodriguez
2016-01-21 19:50 ` H. Peter Anvin
2016-01-21 19:52 ` H. Peter Anvin
2016-01-22 0:19 ` Luis R. Rodriguez
2016-01-21 20:05 ` Luis R. Rodriguez
2016-01-21 21:36 ` H. Peter Anvin
2015-12-15 22:16 ` [RFC v1 5/8] x86/init: move ebda reservations into linker table Luis R. Rodriguez
2015-12-17 20:48 ` Andy Lutomirski
2015-12-17 20:55 ` H. Peter Anvin [this message]
2015-12-17 20:57 ` Andy Lutomirski
2015-12-17 23:40 ` Luis R. Rodriguez
2016-01-20 20:46 ` Konrad Rzeszutek Wilk
2015-12-15 22:16 ` [RFC v1 6/8] x86/init: use linker table for i386 early setup Luis R. Rodriguez
2016-01-20 21:14 ` Konrad Rzeszutek Wilk
2016-01-20 21:41 ` Luis R. Rodriguez
2016-02-11 19:55 ` Luis R. Rodriguez
2015-12-15 22:16 ` [RFC v1 7/8] x86/init: user linker table for ce4100 " Luis R. Rodriguez
2016-01-20 21:14 ` Konrad Rzeszutek Wilk
2015-12-15 22:16 ` [RFC v1 8/8] x86/init: use linker table for mid " Luis R. Rodriguez
2016-01-20 21:15 ` Konrad Rzeszutek Wilk
2015-12-15 22:59 ` [RFC v1 0/8] x86/init: Linux linker tables H. Peter Anvin
2015-12-17 20:38 ` H. Peter Anvin
2015-12-17 23:46 ` Luis R. Rodriguez
2015-12-17 23:58 ` Luis R. Rodriguez
2015-12-18 4:25 ` H. Peter Anvin
2015-12-18 4:40 ` H. Peter Anvin
2016-01-21 20:19 ` H. Peter Anvin
2016-01-21 20:33 ` Luis R. Rodriguez
2016-01-21 21:37 ` Konrad Rzeszutek Wilk
2016-01-21 22:25 ` [Xen-devel] " Luis R. Rodriguez
2016-01-21 23:56 ` H. Peter Anvin
2016-01-22 0:28 ` Luis R. Rodriguez
2016-01-22 8:15 ` Michael Brown
2016-01-22 13:44 ` Michael Matz
2016-01-22 19:06 ` H. Peter Anvin
2016-01-22 21:52 ` Luis R. Rodriguez
2016-02-03 0:22 ` Luis R. Rodriguez
2016-02-03 0:25 ` H. Peter Anvin
2016-02-03 0:28 ` Luis R. Rodriguez
2016-02-03 0:48 ` Luis R. Rodriguez
2016-02-02 23:48 ` H. Peter Anvin
2016-02-03 0:15 ` Luis R. Rodriguez
2015-12-18 18:50 ` Luis R. Rodriguez
2015-12-18 18:58 ` H. Peter Anvin
2016-01-20 21:16 ` Konrad Rzeszutek Wilk
2016-01-20 21:49 ` Luis R. Rodriguez
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