diff options
Diffstat (limited to 'fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/platform/linux-sgx/sgx_rsrv_mem_mngr.h')
-rw-r--r-- | fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/platform/linux-sgx/sgx_rsrv_mem_mngr.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/platform/linux-sgx/sgx_rsrv_mem_mngr.h b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/platform/linux-sgx/sgx_rsrv_mem_mngr.h new file mode 100644 index 000000000..5555d4d9f --- /dev/null +++ b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/core/shared/platform/linux-sgx/sgx_rsrv_mem_mngr.h @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2011-2019 Intel Corporation. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Intel Corporation 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. + * + */ + +/* + * This file is copied from + * https://github.com/intel/linux-sgx/blob/4589daddd58bec7367a6a9de3fe301e6de17671a/common/inc/internal/sgx_rsrv_mem_mngr.h + * The reason we copied here is that the official SGX SDK release has + * not included this header file yet. + */ + +#pragma once + +#ifndef _SGX_RSRV_MEM_MNGR_H_ +#define _SGX_RSRV_MEM_MNGR_H_ + +#include "stdint.h" +#include "sgx_error.h" + +#define SGX_PROT_READ 0x1 /* page can be read */ +#define SGX_PROT_WRITE 0x2 /* page can be written */ +#define SGX_PROT_EXEC 0x4 /* page can be executed */ +#define SGX_PROT_NONE 0x0 /* page can not be accessed */ + +#ifdef __cplusplus +extern "C" { +#endif + +/* Allocate a range of EPC memory from the reserved memory area with RW + * permission + * + * Parameters: + * Inputs: length [in]: Size of region to be allocated in bytes. Page aligned. + * Return: Starting address of the new allocated memory area on success; + * otherwise NULL + */ +void * +sgx_alloc_rsrv_mem(size_t length); + +/* Free a range of EPC memory from the reserved memory area + * + * Parameters: + * Inputs: addr[in]: Starting address of region to be freed. Page aligned. + * length[in]: The length of the memory to be freed in bytes. + * Page aligned. + * Return: 0 on success; otherwise -1 + */ +int +sgx_free_rsrv_mem(void *addr, size_t length); + +/* Modify the access permissions of the pages in the reserved memory area. + * + * Parameters: + * Inputs: addr[in]: Starting address of region which needs to change access + * permission. Page aligned. + * length[in]: The length of the memory to be manipulated in bytes. + * Page aligned. + * prot[in]: The target memory protection. + * Return: sgx_status_t - SGX_SUCCESS or failure as defined in sgx_error.h + */ +sgx_status_t +sgx_tprotect_rsrv_mem(void *addr, size_t len, int prot); + +#ifdef __cplusplus +} +#endif + +#endif |