From: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
To: "Jens Wiklander" <jens.wiklander@linaro.org>,
"Sumit Garg" <sumit.garg@kernel.org>,
"Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konradybcio@kernel.org>,
"Bartosz Golaszewski" <bartosz.golaszewski@linaro.org>,
"Apurupa Pattapu" <quic_apurupa@quicinc.com>,
"Kees Cook" <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>
Cc: Harshal Dev <quic_hdev@quicinc.com>,
linux-arm-msm@vger.kernel.org, op-tee@lists.trustedfirmware.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
linux-doc@vger.kernel.org,
Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>,
Sumit Garg <sumit.garg@oss.qualcomm.com>
Subject: [PATCH v7 05/11] tee: increase TEE_MAX_ARG_SIZE to 4096
Date: Tue, 12 Aug 2025 17:35:34 -0700 [thread overview]
Message-ID: <20250812-qcom-tee-using-tee-ss-without-mem-obj-v7-5-ce7a1a774803@oss.qualcomm.com> (raw)
In-Reply-To: <20250812-qcom-tee-using-tee-ss-without-mem-obj-v7-0-ce7a1a774803@oss.qualcomm.com>
Increase TEE_MAX_ARG_SIZE to accommodate worst-case scenarios where
additional buffer space is required to pass all arguments to TEE.
This change is necessary for upcoming support for Qualcomm TEE, which
requires a larger buffer for argument marshaling.
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Tested-by: Harshal Dev <quic_hdev@quicinc.com>
Signed-off-by: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
---
include/uapi/linux/tee.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/uapi/linux/tee.h b/include/uapi/linux/tee.h
index 441d97add53f..71a365afb89b 100644
--- a/include/uapi/linux/tee.h
+++ b/include/uapi/linux/tee.h
@@ -42,7 +42,7 @@
#define TEE_IOC_MAGIC 0xa4
#define TEE_IOC_BASE 0
-#define TEE_MAX_ARG_SIZE 1024
+#define TEE_MAX_ARG_SIZE 4096
#define TEE_GEN_CAP_GP (1 << 0)/* GlobalPlatform compliant TEE */
#define TEE_GEN_CAP_PRIVILEGED (1 << 1)/* Privileged device (for supplicant) */
--
2.34.1
next prev parent reply other threads:[~2025-08-13 0:37 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-13 0:35 [PATCH v7 00/11] Trusted Execution Environment (TEE) driver for Qualcomm TEE (QTEE) Amirreza Zarrabi
2025-08-13 0:35 ` [PATCH v7 01/11] tee: allow a driver to allocate a tee_device without a pool Amirreza Zarrabi
2025-08-13 0:35 ` [PATCH v7 02/11] tee: add close_context to TEE driver operation Amirreza Zarrabi
2025-08-13 0:35 ` [PATCH v7 03/11] tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF Amirreza Zarrabi
2025-08-13 0:35 ` [PATCH v7 04/11] tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF Amirreza Zarrabi
2025-08-13 0:35 ` Amirreza Zarrabi [this message]
2025-08-13 0:35 ` [PATCH v7 06/11] firmware: qcom: scm: add support for object invocation Amirreza Zarrabi
2025-08-13 9:53 ` Konrad Dybcio
2025-08-13 21:37 ` Amirreza Zarrabi
2025-08-13 22:52 ` Konrad Dybcio
2025-08-13 22:55 ` Amirreza Zarrabi
2025-08-13 0:35 ` [PATCH v7 07/11] firmware: qcom: tzmem: export shm_bridge create/delete Amirreza Zarrabi
2025-08-13 10:06 ` Konrad Dybcio
2025-08-13 21:47 ` Amirreza Zarrabi
2025-08-13 10:11 ` Kuldeep Singh
2025-08-13 0:35 ` [PATCH v7 08/11] tee: add Qualcomm TEE driver Amirreza Zarrabi
2025-08-13 21:28 ` kernel test robot
2025-08-13 0:35 ` [PATCH v7 09/11] qcomtee: add primordial object Amirreza Zarrabi
2025-08-13 0:35 ` [PATCH v7 10/11] qcomtee: enable TEE_IOC_SHM_ALLOC ioctl Amirreza Zarrabi
2025-08-13 10:00 ` Konrad Dybcio
2025-08-13 22:24 ` Amirreza Zarrabi
2025-08-13 22:49 ` Konrad Dybcio
2025-08-13 23:07 ` Amirreza Zarrabi
2025-08-13 23:19 ` Amirreza Zarrabi
2025-08-13 23:20 ` Konrad Dybcio
2025-08-13 23:23 ` Amirreza Zarrabi
2025-08-14 5:50 ` Amirreza Zarrabi
2025-08-13 0:35 ` [PATCH v7 11/11] Documentation: tee: Add Qualcomm TEE driver Amirreza Zarrabi
2025-08-13 7:49 ` [PATCH v7 00/11] Trusted Execution Environment (TEE) driver for Qualcomm TEE (QTEE) Jens Wiklander
2025-08-13 21:39 ` Amirreza Zarrabi
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