NACK: [SRU][N:linux-bluefield][PATCH v1 1/1] UBUNTU: SAUCE: UBUNTU: [CONFIG] Fix OP-TEE driver load for Noble

[Kuba Pawlak]

On 14.08.2025 17:59, James Hurley wrote:
> BugLink: https://bugs.launchpad.net/bugs/2120582
>
> Need to disable the KCONFIG support for the ARM FF-A Transport to make OPTEE functional.
>
> OP-TEE supports 2 communication transports and by default attempts to set up both transports.
> (1) SMC - Secure Monitor Transport - this is the traditional and primary transport mechanism for OP-TEE.
> (2) FF-A (Firmware Framework for Arm) Transport - this is new and added for Ubuntu 24.04
>
> For the FF-A transport, the OPTEE driver depends on the FFA Kernel Module.
>
> The FFA Kernel Module requires ARM SMCCC version 1.2 support. Ubuntu 24.04 kernel only supports ARM SMCCC
> version 1.1 and below. What happens is when the FFA Kernel Module loads, it aborts since 1.2 is NOT supported
> and is unloaded. Later the OPTEE driver uses an FFA API and tries calling into the FFA kernel Module
> (which has unloaded), resulting in the OPTEE driver getting an undefined symbol error and unloading itself.
> This also results in the Msoft fTPM driver and tee-supplicant not loading either as they depend on the
> OPTEE driver.
>
> The fix is to disable the kernel configuration (CONFIG_ARM_FFA_TRANSPORT and CONFIG_ARM_FFA_SMCCC) for the
> ARM FFA Transport. This results in OPTEE not calling into the FFA kernel module and instead using its
> traditional SMC transport and loads and functions properly.
> ---
>   debian.master/config/annotations | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/debian.master/config/annotations b/debian.master/config/annotations
> index 7c73cd54a6c4..3f636baed4db 100644
> --- a/debian.master/config/annotations
> +++ b/debian.master/config/annotations
> @@ -1735,8 +1735,8 @@ CONFIG_ARM_ERRATA_857271                        policy<{'armhf': 'y'}>
>   CONFIG_ARM_ERRATA_857272                        policy<{'armhf': 'y'}>
>   CONFIG_ARM_EXYNOS_BUS_DEVFREQ                   policy<{'armhf': 'n'}>
>   CONFIG_ARM_EXYNOS_CPUIDLE                       policy<{'armhf': 'n'}>
> -CONFIG_ARM_FFA_SMCCC                            policy<{'arm64': 'y'}>
> -CONFIG_ARM_FFA_TRANSPORT                        policy<{'arm64': 'm'}>
> +CONFIG_ARM_FFA_SMCCC                            policy<{'arm64': 'n'}>
> +CONFIG_ARM_FFA_TRANSPORT                        policy<{'arm64': 'n'}>
>   CONFIG_ARM_GIC                                  policy<{'arm64': 'y', 'armhf': 'y'}>
>   CONFIG_ARM_GIC_MAX_NR                           policy<{'arm64': '1', 'armhf': '1'}>
>   CONFIG_ARM_GIC_PM                               policy<{'arm64': 'y'}>
> --
> 2.43.2
>

debian.master is not the place to do it. This needs to be done in 'debian.bluefield'
The change should be:


diff --git a/debian.bluefield/config/annotations b/debian.bluefield/config/annotations
index 9573eefe3041..d8bf7fc871e0 100644
--- a/debian.bluefield/config/annotations
+++ b/debian.bluefield/config/annotations
@@ -134,6 +134,8 @@ CONFIG_ARM64_PA_BITS_52                         policy<{'arm64-bluefield-64k': '
  CONFIG_ARM64_VA_BITS_39                         policy<{'arm64': 'n', 'arm64-bluefield-64k': '-'}>
  CONFIG_ARM64_VA_BITS_42                         policy<{'arm64-bluefield-64k': 'n'}>
  CONFIG_ARM64_VA_BITS_52                         policy<{'arm64-bluefield-64k': 'n'}>
+CONFIG_ARM_FFA_SMCCC                            policy<{'arm64': '-'}>
+CONFIG_ARM_FFA_TRANSPORT                        policy<{'arm64': 'n'}>
  CONFIG_ARM_SMMU_QCOM_DEBUG                      policy<{'arm64': 'y', 'arm64-bluefield-64k': 'n'}>
  CONFIG_ATL1                                     policy<{'arm64': '-'}>
  CONFIG_ATL1C                                    policy<{'arm64': '-'}>


Nacked-by: Kuba Pawlak <kuba.pawlak at canonical.com>

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