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74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
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/*
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* Copyright (C) 2011-2016 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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#ifndef _TD_MNGR_H_
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#define _TD_MNGR_H_
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#include "arch.h"
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#include "rts.h"
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// use tcs->reserved field to save some information
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typedef struct _tcs_sim_t
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{
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uintptr_t saved_aep;
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size_t tcs_state;
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uintptr_t saved_dtv;
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uintptr_t saved_fs_gs_0;
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} tcs_sim_t;
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#define TCS_STATE_INACTIVE 0 //The TCS is available for a normal EENTER
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#define TCS_STATE_ACTIVE 1 //A Processor is currently executing in the context of this TCS
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// The 1st parameter of enter_enclave function (enclave_enclave.S) is tcs.
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// If the parameter is changed, or EENTER_PROLOG is changed, the macro should be updated accordingly.
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#ifdef SE_GNU64
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#define GET_TCS_PTR(xbp) (tcs_t *)(*(uintptr_t *)((size_t)(xbp) - 10 * sizeof(uintptr_t)))
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#else
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#define GET_TCS_PTR(xbp) (tcs_t *)(*(uintptr_t *)((size_t)(xbp) + 2 * sizeof(uintptr_t)))
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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//Add the implementation to get the _tls_array pointer in GNU here.
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#include "gnu_tls.h"
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extern uint8_t __ImageBase;
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int td_mngr_set_td(void *enclave_base, tcs_t *tcs);
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int td_mngr_restore_td(tcs_t *tcs);
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#ifdef __cplusplus
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}
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#endif
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#endif
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