From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org, Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: mfe@pengutronix.de
Subject: Re: [PATCH 1/2] ARM: mmu: have zero_page_remappable() check MMU status
Date: Mon, 03 Nov 2025 09:56:50 +0100 [thread overview]
Message-ID: <176216021058.4142877.16070569428789037301.b4-ty@pengutronix.de> (raw)
In-Reply-To: <20251028143238.1782982-1-a.fatoum@pengutronix.de>
On Tue, 28 Oct 2025 15:32:34 +0100, Ahmad Fatoum wrote:
> zero_page_access() and zero_page_faulting() call remap_range(), which
> assumes the TTBR was initialized to page tables set up by barebox.
>
> It's thus not safe to call them from generic code prior to enabling the
> MMU, but we are doing just that. In preparation for fixing, let's make
> zero_page_remappable reflect MMU status.
>
> [...]
Applied, thanks!
[1/2] ARM: mmu: have zero_page_remappable() check MMU status
https://git.pengutronix.de/cgit/barebox/commit/?id=ce3410882a3a (link may not be stable)
[2/2] ARM: i.MX8M: romapi: skip zero_page_access() if MMU is disabled
https://git.pengutronix.de/cgit/barebox/commit/?id=accef8382d96 (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
prev parent reply other threads:[~2025-11-03 8:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-28 14:32 Ahmad Fatoum
2025-10-28 14:32 ` [PATCH 2/2] ARM: i.MX8M: romapi: skip zero_page_access() if MMU is disabled Ahmad Fatoum
2025-11-03 8:56 ` Sascha Hauer [this message]
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