From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Make sure appended device tree data won't overlap kernel BSS
Date: Mon, 13 Jun 2011 03:49:41 -0700 [thread overview]
Message-ID: <20110613104940.GF10951@atomide.com> (raw)
In-Reply-To: <alpine.LFD.2.00.1106120209450.2142@xanadu.home>
* Nicolas Pitre <nico@fluxnic.net> [110611 23:09]:
> On Fri, 13 May 2011, Tony Lindgren wrote:
>
> > From: Tony Lindgren <tony@atomide.com>
> > Date: Thu, 12 May 2011 05:29:49 -0700
> > Subject: [PATCH] ARM: zImage: Make sure appended device tree data won't overlap kernel BSS
> >
> > Do this before relocating the compressed kernel + device tree data.
> > Otherwise we would have to split the copying into two parts, or copy
> > the device tree data twice.
> >
> > As we only have one register available, pass the size of kernel BSS
> > via linker and do the calculation using r1, then save it to the stack.
> >
> > Note that this patch now makes the stack also usable earlier for
> > CONFIG_ARM_APPENDED_DTB.
> >
> > Signed-off-by: Tony Lindgren <tony@atomide.com>
> [...]
>
> Please tell me what you think of this alternative:
> http://article.gmane.org/gmane.linux.ports.arm.kernel/120182
> I think it is a cleaner solution.
Yeah that's nice, I acked that one in the thread.
Regards,
Tony
WARNING: multiple messages have this Message-ID (diff)
From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Nicolas Pitre <nico-vtqb6HGKxmzR7s880joybQ@public.gmane.org>
Cc: glikely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
Russell King - ARM Linux
<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH] ARM: Make sure appended device tree data won't overlap kernel BSS
Date: Mon, 13 Jun 2011 03:49:41 -0700 [thread overview]
Message-ID: <20110613104940.GF10951@atomide.com> (raw)
In-Reply-To: <alpine.LFD.2.00.1106120209450.2142-QuJgVwGFrdf/9pzu0YdTqQ@public.gmane.org>
* Nicolas Pitre <nico-vtqb6HGKxmzR7s880joybQ@public.gmane.org> [110611 23:09]:
> On Fri, 13 May 2011, Tony Lindgren wrote:
>
> > From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
> > Date: Thu, 12 May 2011 05:29:49 -0700
> > Subject: [PATCH] ARM: zImage: Make sure appended device tree data won't overlap kernel BSS
> >
> > Do this before relocating the compressed kernel + device tree data.
> > Otherwise we would have to split the copying into two parts, or copy
> > the device tree data twice.
> >
> > As we only have one register available, pass the size of kernel BSS
> > via linker and do the calculation using r1, then save it to the stack.
> >
> > Note that this patch now makes the stack also usable earlier for
> > CONFIG_ARM_APPENDED_DTB.
> >
> > Signed-off-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
> [...]
>
> Please tell me what you think of this alternative:
> http://article.gmane.org/gmane.linux.ports.arm.kernel/120182
> I think it is a cleaner solution.
Yeah that's nice, I acked that one in the thread.
Regards,
Tony
next prev parent reply other threads:[~2011-06-13 10:49 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-24 23:18 [PATCHv3] ARM:boot:device tree: Allow the device tree binary to be appended to zImage John Bonesio
2011-03-24 23:18 ` John Bonesio
2011-03-24 23:37 ` Nicolas Pitre
2011-03-24 23:37 ` Nicolas Pitre
2011-03-28 9:13 ` Shawn Guo
2011-03-28 9:13 ` Shawn Guo
2011-04-13 14:00 ` Tony Lindgren
2011-04-13 14:00 ` Tony Lindgren
2011-04-20 5:47 ` Shawn Guo
2011-04-20 5:47 ` Shawn Guo
2011-04-20 7:34 ` Shawn Guo
2011-04-20 7:34 ` Shawn Guo
2011-04-21 8:02 ` Tony Lindgren
2011-04-21 8:02 ` Tony Lindgren
2011-04-21 12:46 ` Tony Lindgren
2011-04-21 12:46 ` Tony Lindgren
2011-04-27 14:23 ` Tony Lindgren
2011-04-27 14:23 ` Tony Lindgren
2011-04-27 14:38 ` Tony Lindgren
2011-04-27 14:38 ` Tony Lindgren
2011-04-27 14:40 ` Nicolas Pitre
2011-04-27 14:40 ` Nicolas Pitre
2011-04-27 14:43 ` Tony Lindgren
2011-04-27 14:43 ` Tony Lindgren
2011-04-29 10:26 ` Tony Lindgren
2011-04-29 10:26 ` Tony Lindgren
2011-04-29 13:02 ` Grant Likely
2011-04-29 13:02 ` Grant Likely
2011-04-29 13:08 ` Grant Likely
2011-04-29 13:08 ` Grant Likely
2011-04-29 13:09 ` Tony Lindgren
2011-04-29 13:09 ` Tony Lindgren
2011-04-29 13:21 ` Nicolas Pitre
2011-04-29 13:21 ` Nicolas Pitre
2011-04-29 13:16 ` Nicolas Pitre
2011-04-29 13:16 ` Nicolas Pitre
2011-04-29 13:53 ` Russell King - ARM Linux
2011-04-29 13:53 ` Russell King - ARM Linux
2011-04-29 19:14 ` Nicolas Pitre
2011-04-29 19:14 ` Nicolas Pitre
2011-05-04 7:23 ` Tony Lindgren
2011-05-04 7:23 ` Tony Lindgren
2011-05-04 13:12 ` Tony Lindgren
2011-05-04 13:12 ` Tony Lindgren
2011-05-04 13:38 ` Nicolas Pitre
2011-05-04 13:38 ` Nicolas Pitre
2011-05-09 11:19 ` [PATCH] ARM: Make sure appended device tree data won't overlap kernel BSS Tony Lindgren
2011-05-09 11:19 ` Tony Lindgren
2011-05-09 14:49 ` Tony Lindgren
2011-05-09 14:49 ` Tony Lindgren
2011-05-12 12:59 ` Tony Lindgren
2011-05-12 12:59 ` Tony Lindgren
2011-05-13 7:39 ` Nicolas Pitre
2011-05-13 7:39 ` Nicolas Pitre
2011-05-13 11:21 ` Tony Lindgren
2011-05-13 11:21 ` Tony Lindgren
2011-05-13 13:09 ` Nicolas Pitre
2011-05-13 13:09 ` Nicolas Pitre
2011-05-13 13:28 ` Tony Lindgren
2011-05-13 13:28 ` Tony Lindgren
2011-06-07 12:43 ` Tony Lindgren
2011-06-07 12:43 ` Tony Lindgren
2011-06-07 13:14 ` Nicolas Pitre
2011-06-07 13:14 ` Nicolas Pitre
2011-06-07 13:22 ` Tony Lindgren
2011-06-07 13:22 ` Tony Lindgren
2011-06-12 6:14 ` Nicolas Pitre
2011-06-12 6:14 ` Nicolas Pitre
2011-06-13 10:49 ` Tony Lindgren [this message]
2011-06-13 10:49 ` Tony Lindgren
2011-05-09 11:23 ` [PATCHv3] ARM:boot:device tree: Allow the device tree binary to be appended to zImage Tony Lindgren
2011-05-09 11:23 ` Tony Lindgren
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