149 lines
6.1 KiB
C
Executable File
149 lines
6.1 KiB
C
Executable File
/*
|
|
* Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of
|
|
* its contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _TZ_THREAD_H_
|
|
#define _TZ_THREAD_H_
|
|
|
|
#include "FreeRTOS.h"
|
|
#include "task.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* convert macro argument to string */
|
|
/* note: this needs one level of indirection, accomplished with the helper macro
|
|
* __MACRO_TO_STRING */
|
|
#define __MACRO_TO_STRING(x) #x
|
|
#define MACRO_TO_STRING(x) __MACRO_TO_STRING(x)
|
|
|
|
/* select an overloaded macro, so that 0 to 4 arguments can be used */
|
|
#define MACRO_SELECT(_0, _1, _2, _3, _4, NAME, ...) NAME
|
|
|
|
/* count macro arguments */
|
|
#define MACRO_NARGS(...) \
|
|
MACRO_SELECT(_0, ##__VA_ARGS__, 4, 3, 2, 1, 0)
|
|
|
|
/* declare explicit callee-saved registers to hold input arguments (0 to 4) */
|
|
/* note: sizeof(type) must be less than or equal to 4 */
|
|
#define MACRO_REGS_ARGS(type, ...) \
|
|
MACRO_SELECT(_0, ##__VA_ARGS__, MACRO_REGS_ARGS4, \
|
|
MACRO_REGS_ARGS3, \
|
|
MACRO_REGS_ARGS2, \
|
|
MACRO_REGS_ARGS1, \
|
|
MACRO_REGS_ARGS0)(type, ##__VA_ARGS__)
|
|
|
|
#define MACRO_REGS_ARGS0(type)
|
|
#define MACRO_REGS_ARGS1(type, a0) \
|
|
register type r0 asm("r0") = (type) (a0);
|
|
#define MACRO_REGS_ARGS2(type, a0, a1) \
|
|
register type r0 asm("r0") = (type) (a0); \
|
|
register type r1 asm("r1") = (type) (a1);
|
|
#define MACRO_REGS_ARGS3(type, a0, a1, a2) \
|
|
register type r0 asm("r0") = (type) (a0); \
|
|
register type r1 asm("r1") = (type) (a1); \
|
|
register type r2 asm("r2") = (type) (a2);
|
|
#define MACRO_REGS_ARGS4(type, a0, a1, a2, a3) \
|
|
register type r0 asm("r0") = (type) (a0); \
|
|
register type r1 asm("r1") = (type) (a1); \
|
|
register type r2 asm("r2") = (type) (a2); \
|
|
register type r3 asm("r3") = (type) (a3);
|
|
|
|
/* declare explicit callee-saved registers to hold output values */
|
|
/* note: currently only one output value is allowed, up to 32bits */
|
|
#define MACRO_REGS_RETVAL(type, name) \
|
|
register type name asm("r0");
|
|
|
|
#define MACRO_GCC_ASM_INPUT(...) \
|
|
MACRO_SELECT(_0, ##__VA_ARGS__, MACRO_GCC_ASM_INPUT4, \
|
|
MACRO_GCC_ASM_INPUT3, \
|
|
MACRO_GCC_ASM_INPUT2, \
|
|
MACRO_GCC_ASM_INPUT1, \
|
|
MACRO_GCC_ASM_INPUT0)(__VA_ARGS__)
|
|
|
|
#define MACRO_GCC_ASM_INPUT0() [__dummy] "I" (0)
|
|
#define MACRO_GCC_ASM_INPUT1(a0) [r0] "r" (r0)
|
|
#define MACRO_GCC_ASM_INPUT2(a0, a1) [r0] "r" (r0), [r1] "r" (r1)
|
|
#define MACRO_GCC_ASM_INPUT3(a0, a1, a2) [r0] "r" (r0), [r1] "r" (r1), [r2] "r" (r2)
|
|
#define MACRO_GCC_ASM_INPUT4(a0, a1, a2, a3) [r0] "r" (r0), [r1] "r" (r1), [r2] "r" (r2), [r3] "r" (r3)
|
|
|
|
#define MACRO_GCC_ASM_OUTPUT(name) [res] "=r" (name)
|
|
|
|
static __always_inline uint32_t TEE_ContextIsValid(void)
|
|
{
|
|
uint32_t secure_context = vPortGetSecureContext();
|
|
|
|
return (secure_context != 0);
|
|
}
|
|
|
|
static __always_inline uint32_t TEE_Malloc(uint32_t SecureStackSize)
|
|
{
|
|
if (TEE_ContextIsValid()) {
|
|
return 1;
|
|
}
|
|
portALLOCATE_SECURE_CONTEXT(SecureStackSize);
|
|
return 0;
|
|
}
|
|
|
|
static __always_inline void TEE_Free(void)
|
|
{
|
|
vPortFreeSecureContext_alone();
|
|
}
|
|
|
|
/*
|
|
* You must not define un-volatile variables or register(r0~r3) variables here,
|
|
* because it maybe as r0~r3 in fact, thus will be modified when nsc-function return.
|
|
* Please don't change it unless you are absolutely sure.
|
|
*/
|
|
#define TEE_FUNC_CALL(dst_func, ...) \
|
|
({ \
|
|
MACRO_REGS_RETVAL(int32_t, res); \
|
|
volatile int32_t _ret = ~0, malloc_valid = 0; \
|
|
if (!TEE_Malloc(configMAXIMAL_SECURE_STACK_SIZE)) { \
|
|
malloc_valid = 1; \
|
|
} \
|
|
MACRO_REGS_ARGS(uint32_t, ##__VA_ARGS__); \
|
|
__asm volatile( \
|
|
"bl " MACRO_TO_STRING(dst_func) "\n" \
|
|
: MACRO_GCC_ASM_OUTPUT(res) \
|
|
: MACRO_GCC_ASM_INPUT(__VA_ARGS__) \
|
|
); \
|
|
__asm volatile("mov %0, r0" : "=r"(_ret) : : "memory"); \
|
|
if (malloc_valid == 1) { \
|
|
TEE_Free(); \
|
|
} \
|
|
res = _ret; \
|
|
})
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _TZ_THREAD_H_ */
|