From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org, Ahmad Fatoum <a.fatoum@barebox.org>
Subject: Re: [PATCH] mmu: explicitly map executable non-SDRAM regions with MAP_CODE
Date: Fri, 20 Jun 2025 14:46:08 +0200 [thread overview]
Message-ID: <175042356864.3112578.12807191128971308852.b4-ty@pengutronix.de> (raw)
In-Reply-To: <20250618123642.1432610-1-a.fatoum@barebox.org>
On Wed, 18 Jun 2025 14:36:42 +0200, Ahmad Fatoum wrote:
> So far we have been setting eXecute Never on MAP_UNCACHED regions and
> left it out for the default MAP_CACHED region.
>
> We have at least three places, which depend on this to remap non-SDRAM
> regions executable, so ROM code or newly uploaded code can be run.
>
> Switch them over to use a new MAP_CODE mapping type. For now, this is
> equivalent to MAP_CACHED, but with the addition of W^X support in
> barebox, this will be required to avoid a prefetch abort when MMU
> attributes are used.
>
> [...]
Applied, thanks!
[1/1] mmu: explicitly map executable non-SDRAM regions with MAP_CODE
https://git.pengutronix.de/cgit/barebox/commit/?id=225fda833a82 (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
prev parent reply other threads:[~2025-06-20 12:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-18 12:36 Ahmad Fatoum
2025-06-20 12:45 ` Sascha Hauer
2025-06-20 15:45 ` Ahmad Fatoum
2025-06-20 12:46 ` Sascha Hauer [this message]
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