unsupported.h

00001 /*
00002  * Copyright (c) 2015-2016, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  * not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 #ifndef __UVISOR_API_UNSUPPORTED_H__
00018 #define __UVISOR_API_UNSUPPORTED_H__
00019 
00020 #include "uvisor/api/inc/uvisor_exports.h"
00021 #include <stddef.h>
00022 #include <stdint.h>
00023 
00024 /* uVisor hook for unsupported platforms */
00025 UVISOR_EXTERN void uvisor_init(void);
00026 
00027 /*******************************************************************************
00028  * Re-definitions from:
00029  ******************************************************************************/
00030 
00031 /* uvisor-lib/box-config.h */
00032 
00033 UVISOR_EXTERN const uint32_t __uvisor_mode;
00034 
00035 #define UVISOR_DISABLED 0
00036 
00037 #define UVISOR_SET_MODE(mode) \
00038     UVISOR_SET_MODE_ACL_COUNT(mode, NULL, 0)
00039 
00040 #define UVISOR_SET_MODE_ACL(mode, acl_list) \
00041     UVISOR_SET_MODE_ACL_COUNT(mode, acl_list, UVISOR_ARRAY_COUNT(acl_list))
00042 
00043 #define UVISOR_SET_MODE_ACL_COUNT(mode, acl_list, acl_list_count) \
00044     UVISOR_EXTERN const uint32_t __uvisor_mode = UVISOR_DISABLED; \
00045     static const void *public_box_acl = acl_list; \
00046     extern const __attribute__((section(".keep.uvisor.cfgtbl_ptr_first"), aligned(4))) void * const public_box_cfg_ptr = &public_box_acl;
00047 
00048 #define __UVISOR_BOX_CONFIG_NOCONTEXT(box_name, acl_list, stack_size) \
00049     static const void *box_acl_ ## box_name = acl_list; \
00050     extern const __attribute__((section(".keep.uvisor.cfgtbl_ptr"), aligned(4))) void * const box_name ## _cfg_ptr = &box_acl_ ## box_name;
00051 
00052 #define __UVISOR_BOX_CONFIG_CONTEXT(box_name, acl_list, stack_size, context_type) \
00053     context_type box_ctx_ ## box_name; \
00054     context_type * const uvisor_ctx = &box_ctx_ ## box_name; \
00055     static const void *box_acl_ ## box_name = acl_list; \
00056     const __attribute__((section(".keep.uvisor.cfgtbl_ptr"), aligned(4))) volatile void *box_name ## _cfg_ptr = \
00057         &box_acl_ ## box_name;
00058 
00059 #define __UVISOR_BOX_MACRO(_1, _2, _3, _4, NAME, ...) NAME
00060 #define UVISOR_BOX_CONFIG(...) \
00061     __UVISOR_BOX_MACRO(__VA_ARGS__, __UVISOR_BOX_CONFIG_CONTEXT, \
00062                                     __UVISOR_BOX_CONFIG_NOCONTEXT)(__VA_ARGS__)
00063 
00064 #define UVISOR_BOX_CONFIG_ACL(...) UVISOR_BOX_CONFIG(__VA_ARGS__)
00065 
00066 #define UVISOR_BOX_CONFIG_CTX(...) UVISOR_BOX_CONFIG(__VA_ARGS__)
00067 
00068 #define UVISOR_BOX_NAMESPACE(...)
00069 
00070 #define UVISOR_BOX_HEAPSIZE(...)
00071 
00072 /* uvisor-lib/interrupts.h */
00073 
00074 #define vIRQ_SetVector(irqn, vector)        NVIC_SetVector((IRQn_Type) (irqn), (uint32_t) (vector))
00075 #define vIRQ_GetVector(irqn)                NVIC_GetVector((IRQn_Type) (irqn))
00076 #define vIRQ_EnableIRQ(irqn)                NVIC_EnableIRQ((IRQn_Type) (irqn))
00077 #define vIRQ_DisableIRQ(irqn)               NVIC_DisableIRQ((IRQn_Type) (irqn))
00078 #define vIRQ_DisableAll                     __disable_irq
00079 #define vIRQ_EnableAll                      __enable_irq
00080 #define vIRQ_ClearPendingIRQ(irqn)          NVIC_ClearPendingIRQ((IRQn_Type) (irqn))
00081 #define vIRQ_SetPendingIRQ(irqn)            NVIC_SetPendingIRQ((IRQn_Type) (irqn))
00082 #define vIRQ_GetPendingIRQ(irqn)            NVIC_GetPendingIRQ((IRQn_Type) (irqn))
00083 #define vIRQ_SetPriority(irqn, priority)    NVIC_SetPriority((IRQn_Type) (irqn), (uint32_t) (priority))
00084 #define vIRQ_GetPriority(irqn)              NVIC_GetPriority((IRQn_Type) (irqn))
00085 
00086 /* uvisor-lib/register_gateway.h */
00087 
00088 #define UVISOR_OP_READ(op)  (op)
00089 #define UVISOR_OP_WRITE(op) ((1 << 4) | (op))
00090 #define UVISOR_OP_NOP       0x0
00091 #define UVISOR_OP_AND       0x1
00092 #define UVISOR_OP_OR        0x2
00093 #define UVISOR_OP_XOR       0x3
00094 
00095 /* Default mask for whole register operatins */
00096 #define __UVISOR_OP_DEFAULT_MASK 0x0
00097 
00098 static UVISOR_FORCEINLINE uint32_t uvisor_read(uint32_t addr, uint32_t op, uint32_t mask)
00099 {
00100     switch(op)
00101     {
00102         case UVISOR_OP_READ(UVISOR_OP_NOP):
00103             return *((uint32_t *) addr);
00104         case UVISOR_OP_READ(UVISOR_OP_AND):
00105             return *((uint32_t *) addr) & mask;
00106         case UVISOR_OP_READ(UVISOR_OP_OR):
00107             return *((uint32_t *) addr) | mask;
00108         case UVISOR_OP_READ(UVISOR_OP_XOR):
00109             return *((uint32_t *) addr) ^ mask;
00110         default:
00111             /* FIXME */
00112             return 0;
00113     }
00114 }
00115 
00116 #define uvisor_read(addr) uvisor_read((uint32_t) (addr), UVISOR_OP_READ(UVISOR_OP_NOP), __UVISOR_OP_DEFAULT_MASK)
00117 
00118 static UVISOR_FORCEINLINE void uvisor_write(uint32_t addr, uint32_t val, uint32_t op, uint32_t mask)
00119 {
00120     switch(op)
00121     {
00122         case UVISOR_OP_WRITE(UVISOR_OP_NOP):
00123             *((uint32_t *) addr) = val;
00124         case UVISOR_OP_WRITE(UVISOR_OP_AND):
00125             *((uint32_t *) addr) &= val | ~mask;
00126         case UVISOR_OP_WRITE(UVISOR_OP_OR):
00127             *((uint32_t *) addr) |= val & mask;
00128         case UVISOR_OP_WRITE(UVISOR_OP_XOR):
00129             *((uint32_t *) addr) ^= val & mask;
00130         default:
00131             /* FIXME */
00132             return;
00133     }
00134 }
00135 
00136 #define uvisor_write(addr, val) uvisor_write((uint32_t) (addr), (uint32_t) (val), \
00137                                              UVISOR_OP_WRITE(UVISOR_OP_NOP), __UVISOR_OP_DEFAULT_MASK)
00138 
00139 /* uvisor-lib/secure_access.h */
00140 
00141 static UVISOR_FORCEINLINE void uvisor_write32(uint32_t volatile *addr, uint32_t val)
00142 {
00143     *(addr) = val;
00144 }
00145 
00146 static UVISOR_FORCEINLINE void uvisor_write16(uint16_t volatile *addr, uint16_t val)
00147 {
00148     *(addr) = val;
00149 }
00150 
00151 static UVISOR_FORCEINLINE void uvisor_write8(uint8_t volatile *addr, uint8_t val)
00152 {
00153     *(addr) = val;
00154 }
00155 
00156 static UVISOR_FORCEINLINE uint32_t uvisor_read32(uint32_t volatile *addr)
00157 {
00158     return *(addr);
00159 }
00160 
00161 static UVISOR_FORCEINLINE uint16_t uvisor_read16(uint16_t volatile *addr)
00162 {
00163     return *(addr);
00164 }
00165 
00166 static UVISOR_FORCEINLINE uint8_t uvisor_read8(uint8_t volatile *addr)
00167 {
00168     return *(addr);
00169 }
00170 
00171 /* The conditional statement will be optimised away since the compiler already
00172  * knows the sizeof(type). */
00173 #define ADDRESS_READ(type, addr) \
00174     (sizeof(type) == 4 ? uvisor_read32((volatile uint32_t *) (addr)) : \
00175      sizeof(type) == 2 ? uvisor_read16((volatile uint16_t *) (addr)) : \
00176      sizeof(type) == 1 ? uvisor_read8((volatile uint8_t *) (addr)) : 0)
00177 
00178 /* The switch statement will be optimised away since the compiler already knows
00179  * the sizeof_type. */
00180 static UVISOR_FORCEINLINE void __address_write(size_t sizeof_type, volatile uint32_t *addr, uint32_t val)
00181 {
00182     switch(sizeof_type) {
00183         case 4:
00184             uvisor_write32((volatile uint32_t *) addr, (uint32_t) val);
00185             break;
00186         case 2:
00187             uvisor_write16((volatile uint16_t *) addr, (uint16_t) val);
00188             break;
00189         case 1:
00190             uvisor_write8((volatile uint8_t *) addr, (uint8_t) val);
00191             break;
00192     }
00193 }
00194 
00195 #define ADDRESS_WRITE(type, addr, val) __address_write(sizeof(type), (volatile uint32_t *) addr, (uint32_t) val)
00196 
00197 #define UNION_READ(type, addr, fieldU, fieldB) ((*((volatile type *) (addr))).fieldB)
00198 
00199 /* uvisor-lib/secure_gateway.h */
00200 
00201 #define secure_gateway(dst_box, dst_fn, ...) dst_fn(__VA_ARGS__)
00202 
00203 #endif /* __UVISOR_API_UNSUPPORTED_H__ */