mirror of
https://github.com/intel/linux-sgx
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Li, Xun
87 lines
2.8 KiB
C++
87 lines
2.8 KiB
C++
/*
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* Copyright (C) 2011-2020 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "trts_trim.h"
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#include "sgx_trts.h" // for sgx_ocalloc, sgx_is_outside_enclave
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#include "internal/rts.h"
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/* sgx_ocfree() just restores the original outside stack pointer. */
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#define OCALLOC(val, type, len) do { \
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void* __tmp = sgx_ocalloc(len); \
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if (__tmp == NULL) { \
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sgx_ocfree(); \
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return SGX_ERROR_UNEXPECTED;\
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} \
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(val) = (type)__tmp; \
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} while (0)
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typedef struct ms_trim_range_ocall_t {
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size_t ms_fromaddr;
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size_t ms_toaddr;
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} ms_trim_range_ocall_t;
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typedef struct ms_trim_range_commit_ocall_t {
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size_t ms_addr;
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} ms_trim_range_commit_ocall_t;
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sgx_status_t SGXAPI trim_range_ocall(size_t fromaddr, size_t toaddr)
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{
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sgx_status_t status = SGX_SUCCESS;
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ms_trim_range_ocall_t* ms;
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OCALLOC(ms, ms_trim_range_ocall_t*, sizeof(*ms));
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ms->ms_fromaddr = fromaddr;
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ms->ms_toaddr = toaddr;
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status = sgx_ocall(EDMM_TRIM, ms);
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sgx_ocfree();
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return status;
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}
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sgx_status_t SGXAPI trim_range_commit_ocall(size_t addr)
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{
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sgx_status_t status = SGX_SUCCESS;
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ms_trim_range_commit_ocall_t* ms;
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OCALLOC(ms, ms_trim_range_commit_ocall_t*, sizeof(*ms));
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ms->ms_addr = addr;
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status = sgx_ocall(EDMM_TRIM_COMMIT, ms);
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sgx_ocfree();
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return status;
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}
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