From: Bagas Sanjaya <bagasdotme@gmail.com>
To: Tony Camuso <tcamuso@redhat.com>,
ning.sun@intel.com, tboot-devel@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org, rppt@kernel.org,
tglx@linutronix.de, mingo@kernel.org, bp@alien8.de,
michal.camacho.romero@linux.intel.com
Subject: Re: [tboot-devel] [PATCH 1/1] Disable CET when calling tboot shutdown procedure.
Date: Tue, 25 Nov 2025 07:34:54 +0700 [thread overview]
Message-ID: <aST5ruhnbILZnoUO@archie.me> (raw)
In-Reply-To: <20251017073619.547993-1-michal.camacho.romero@linux.intel.com>
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On Thu, Nov 13, 2025 at 09:37:14AM -0500, Tony Camuso wrote:
> The tboot->shutdown_entry is effectively bios code and CET needs to be
> disabled before calling it.
>
> It resolves TBOOT shutdown failure bug, reported on the SLES (SUSE Linux
> Enterprise Server) 16.0 OS. OS power off, called by the "init 0" command,
> was failing, due to activated Intel Control-Flow Enforcement Technology
> (CET).
> Disabling CET has allowed to execute OS and TBOOT shutdown properly.
Are ``systemctl poweroff`` and ``shutdown -P`` are also affected?
Confused...
--
An old man doll... just what I always wanted! - Clara
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next prev parent reply other threads:[~2025-11-25 0:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-13 14:37 [tboot-devel] [PATCH 1/1] Disable CET when calling tboot shutdown procedure Tony Camuso
2025-11-25 0:34 ` Bagas Sanjaya [this message]
2025-12-10 18:10 ` Tony Camuso
2025-12-11 13:46 ` Tony Camuso
2026-01-12 17:31 ` Tony Camuso
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