707cdaf42e
This commit expands RPC support for the OP-TEE driver using 2 files:
1) drivers/misc/optee_rpc.c
* Add support for RPCs that can be handled directly by the kernel.
* Can delegate RPC handling to optee_supplicant.c for RPCs that
need userspace interaction.
2) drivers/misc/optee_supplicant.c
* Enable communication between the userspace TEE supplicant and the
kernel driver.
Additional changes were needed to the following files:
1) drivers/misc/optee.c
* Add ioctls used SOLELY by the userspace TEE supplicant.
* Register /dev/teepriv0 if the supplicant is enabled in Kconfig
* Add OPTEE_ROLE_CA and OPTEE_ROLE_SUPPLICANT conditionals to
differentiate paths, between a normal Client Application (CA)
and the TEE supplicant.
* Change some functions from static to "public" to reuse them
in other C files.
* Adjust optee_to/from_msg_param() to work with RPCs.
2) drivers/misc/optee_smc.c
* Call the RPC handler from optee_rpc.c
3) drivers/misc/optee_msg.h
* Add definition needed for RPCs
4) drivers/misc/tee.h
* Add ioctl definitions
* Add TEE_SHM_SUPP flag, checked when unregistering supplicant
memory.
5) Documentation/guides/optee.rs
* Add documentation for RPCs and the supplicant.
6) drivers/misc/{CMakeLists.txt, Make.defs}
* Account for the new files.
7) drivers/misc/Kconfig
* Add DEV_OPTEE_SUPPLICANT option to enable/disable the supplicant
driver.
Signed-off-by: Theodore Karatapanis <tkaratapanis@census-labs.com>
98 lines
2.3 KiB
Text
98 lines
2.3 KiB
Text
############################################################################
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# drivers/misc/Make.defs
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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ifeq ($(CONFIG_DEV_SIMPLE_ADDRENV),y)
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CSRCS += addrenv.c
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endif
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ifeq ($(CONFIG_DEV_NULL),y)
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CSRCS += dev_null.c
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endif
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ifeq ($(CONFIG_DEV_ZERO),y)
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CSRCS += dev_zero.c
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endif
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ifeq ($(CONFIG_DEV_MEM),y)
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CSRCS += dev_mem.c
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endif
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ifeq ($(CONFIG_DEV_ASCII),y)
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CSRCS += dev_ascii.c
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endif
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ifeq ($(CONFIG_LWL_CONSOLE),y)
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CSRCS += lwl_console.c
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endif
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ifneq ($(CONFIG_DISABLE_MOUNTPOINT),y)
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CSRCS += ramdisk.c
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ifeq ($(CONFIG_DRVR_MKRD),y)
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CSRCS += mkrd.c
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endif
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endif
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ifeq ($(CONFIG_DRVR_WRITEBUFFER),y)
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CSRCS += rwbuffer.c
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else ifeq ($(CONFIG_DRVR_READAHEAD),y)
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CSRCS += rwbuffer.c
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endif
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ifeq ($(CONFIG_DEV_RPMSG),y)
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CSRCS += rpmsgdev.c
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endif
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ifeq ($(CONFIG_DEV_RPMSG_SERVER),y)
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CSRCS += rpmsgdev_server.c
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endif
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ifeq ($(CONFIG_BLK_RPMSG),y)
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CSRCS += rpmsgblk.c
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endif
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ifeq ($(CONFIG_BLK_RPMSG_SERVER),y)
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CSRCS += rpmsgblk_server.c
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CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)fs$(DELIM)inode
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CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)fs
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endif
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ifneq ($(CONFIG_DEV_OPTEE_NONE),y)
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CSRCS += optee.c
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ifeq ($(CONFIG_DEV_OPTEE_SMC),y)
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CSRCS += optee_smc.c
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CSRCS += optee_rpc.c
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ifeq ($(CONFIG_DEV_OPTEE_SUPPLICANT),y)
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CSRCS += optee_supplicant.c
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endif
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else
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CSRCS += optee_socket.c
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endif
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endif
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ifeq ($(CONFIG_GOLDFISH_PIPE),y)
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CSRCS += goldfish_pipe.c
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endif
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# Include build support
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DEPPATH += --dep-path misc
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VPATH += :misc
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