From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/include/uapi/linux/tee.h | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/kernel/include/uapi/linux/tee.h b/kernel/include/uapi/linux/tee.h
index 4b9eb06..d67cadf 100644
--- a/kernel/include/uapi/linux/tee.h
+++ b/kernel/include/uapi/linux/tee.h
@@ -51,11 +51,15 @@
#define TEE_GEN_CAP_GP (1 << 0)/* GlobalPlatform compliant TEE */
#define TEE_GEN_CAP_PRIVILEGED (1 << 1)/* Privileged device (for supplicant) */
#define TEE_GEN_CAP_REG_MEM (1 << 2)/* Supports registering shared memory */
+#define TEE_GEN_CAP_MEMREF_NULL (1 << 3)/* NULL MemRef support */
+
+#define TEE_MEMREF_NULL (__u64)(-1) /* NULL MemRef Buffer */
/*
* TEE Implementation ID
*/
#define TEE_IMPL_ID_OPTEE 1
+#define TEE_IMPL_ID_AMDTEE 2
/*
* OP-TEE specific capabilities
@@ -172,6 +176,15 @@
#define TEE_IOCTL_LOGIN_APPLICATION 4
#define TEE_IOCTL_LOGIN_USER_APPLICATION 5
#define TEE_IOCTL_LOGIN_GROUP_APPLICATION 6
+/*
+ * Disallow user-space to use GP implementation specific login
+ * method range (0x80000000 - 0xBFFFFFFF). This range is rather
+ * being reserved for REE kernel clients or TEE implementation.
+ */
+#define TEE_IOCTL_LOGIN_REE_KERNEL_MIN 0x80000000
+#define TEE_IOCTL_LOGIN_REE_KERNEL_MAX 0xBFFFFFFF
+/* Private login method for REE kernel clients */
+#define TEE_IOCTL_LOGIN_REE_KERNEL 0x80000000
/**
* struct tee_ioctl_param - parameter
@@ -190,6 +203,16 @@
* a part of a shared memory by specifying an offset (@a) and size (@b) of
* the object. To supply the entire shared memory object set the offset
* (@a) to 0 and size (@b) to the previously returned size of the object.
+ *
+ * A client may need to present a NULL pointer in the argument
+ * passed to a trusted application in the TEE.
+ * This is also a requirement in GlobalPlatform Client API v1.0c
+ * (section 3.2.5 memory references), which can be found at
+ * http://www.globalplatform.org/specificationsdevice.asp
+ *
+ * If a NULL pointer is passed to a TA in the TEE, the (@c)
+ * IOCTL parameters value must be set to TEE_MEMREF_NULL indicating a NULL
+ * memory reference.
*/
struct tee_ioctl_param {
__u64 attr;
--
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