mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Sascha Hauer <s.hauer@pengutronix.de>,
	BAREBOX <barebox@lists.infradead.org>
Subject: Re: [PATCH 11/14] ARM: i.MX: tqma6ulx: fix barebox chainloading with OP-TEE enabled
Date: Fri, 27 Jun 2025 17:39:26 +0200	[thread overview]
Message-ID: <c7bdaa03-a78d-4b09-b44d-5c6920dbcfaa@pengutronix.de> (raw)
In-Reply-To: <20250627-arm-optee-early-helper-v1-11-4b098e8ac7cd@pengutronix.de>



On 6/27/25 16:07, Sascha Hauer wrote:
> When barebox starts we have to guess if we have to start OP-TEE or not.
> The current detection works by checking if the first stage passed us a
> device tree pointer. This is not robust and might have security issues
> [1], so replace that with the check with imx6_can_access_tzasc(). If we
> can access the TZASC then we are the first stage and configure it and
> start OP-TEE, otherwise assume that we are chainloaded and continue
> without starting OP-TEE.
> 
> Chainloading barebox with OP-TEE enabled contained several bugs, so it
> never actually worked. This patch fixes them.
> 
> [1] https://lore.kernel.org/70b41f3b-4329-48f7-827f-1924e002ab04@pengutronix.de
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

With below bug fixed:

Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>

>  config MACH_TQMA6UL
>  	bool "TQ tqma6ul on mba6ulx"
> +	select CONFIG_ARM_EXCEPTIONS_PBL if FIRMWARE_TQMA6UL_OPTEE

Drop the CONFIG_

Cheers,
Ahmad

-- 
Pengutronix e.K.                  |                             |
Steuerwalder Str. 21              | http://www.pengutronix.de/  |
31137 Hildesheim, Germany         | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686  | Fax:   +49-5121-206917-5555 |




  reply	other threads:[~2025-06-27 16:32 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-27 14:07 [PATCH 00/14] i.MX6 TZASC and OP-TEE early helpers Sascha Hauer
2025-06-27 14:07 ` [PATCH 01/14] pbl: add panic_no_stacktrace() Sascha Hauer
2025-06-27 14:07 ` [PATCH 02/14] arch: Allow data_abort_mask() in PBL Sascha Hauer
2025-06-27 14:07 ` [PATCH 03/14] ARM: add exception handling support for PBL Sascha Hauer
2025-06-27 15:30   ` Ahmad Fatoum
2025-06-27 15:45   ` Marco Felsch
2025-06-27 17:22     ` Sascha Hauer
2025-06-27 17:46       ` Marco Felsch
2025-06-27 14:07 ` [PATCH 04/14] ARM: i.MX6QDL: add imxcfg helper to configure the TZASC1/2 Sascha Hauer
2025-06-27 14:07 ` [PATCH 05/14] ARM: i.MX6Q: add imx6_get_mmdc_sdram_size Sascha Hauer
2025-06-27 14:07 ` [PATCH 06/14] ARM: mach-imx: tzasc: add region configure helpers Sascha Hauer
2025-06-27 14:07 ` [PATCH 07/14] ARM: mach-imx: tzasc: add imx6[q|ul]_tzc380_early_ns_region1() Sascha Hauer
2025-06-27 14:07 ` [PATCH 08/14] ARM: mach-imx: tzasc: add imx6[q|ul]_tzc380_is_bypassed() Sascha Hauer
2025-06-27 15:57   ` Marco Felsch
2025-06-27 17:26     ` Sascha Hauer
2025-06-27 17:42       ` Marco Felsch
2025-06-27 14:07 ` [PATCH 09/14] ARM: i.MX: add imx6_can_access_tzasc() Sascha Hauer
2025-06-27 15:33   ` Ahmad Fatoum
2025-06-27 17:39     ` Sascha Hauer
2025-06-27 16:04   ` Marco Felsch
2025-06-27 17:48     ` Sascha Hauer
2025-06-27 17:54       ` Marco Felsch
2025-06-27 14:07 ` [PATCH 10/14] ARM: optee-early: add mx6_start_optee_early helper Sascha Hauer
2025-06-27 15:38   ` Ahmad Fatoum
2025-06-27 14:07 ` [PATCH 11/14] ARM: i.MX: tqma6ulx: fix barebox chainloading with OP-TEE enabled Sascha Hauer
2025-06-27 15:39   ` Ahmad Fatoum [this message]
2025-06-27 16:08   ` Marco Felsch
2025-06-27 16:10   ` Marco Felsch
2025-06-27 14:07 ` [PATCH 12/14] ARM: i.MX: Webasto ccbv2: " Sascha Hauer
2025-06-27 15:17   ` Ahmad Fatoum
2025-06-27 14:07 ` [PATCH 13/14] ARM: optee-early: drop start_optee_early() Sascha Hauer
2025-06-27 15:21   ` Ahmad Fatoum
2025-06-27 17:59     ` Sascha Hauer
2025-06-27 14:08 ` [PATCH 14/14] ARM: i.MX: tqma6ulx: use ENTRY_FUNCTION_WITHSTACK Sascha Hauer
2025-06-27 15:21   ` Ahmad Fatoum

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=c7bdaa03-a78d-4b09-b44d-5c6920dbcfaa@pengutronix.de \
    --to=a.fatoum@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    --cc=s.hauer@pengutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox