2017-08-16 10:38:06 +00:00
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/*-
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* Copyright (c) 2017 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* This software was developed by BAE Systems, the University of Cambridge
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* Computer Laboratory, and Memorial University under DARPA/AFRL contract
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* FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing
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* (TC) research program.
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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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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <machine/asmacros.h>
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#include <amd64/sgx/sgxvar.h>
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2018-03-20 17:58:51 +00:00
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#include "assym.inc"
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2017-08-16 10:38:06 +00:00
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.text
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/*
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* int
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* sgx_encls(uint32_t eax, uint64_t rbx, uint64_t rcx, uint64_t rdx);
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* %edi, %rsi, %rdx, %rcx
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*/
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ENTRY(sgx_encls)
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PUSH_FRAME_POINTER
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pushq %rbx
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movq PCPU(CURPCB),%r8
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movl %edi,%eax
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movq %rsi,%rbx
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xchgq %rdx,%rcx
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movq $sgx_onfault,PCB_ONFAULT(%r8)
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.byte 0x0f, 0x01, 0xcf
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movq $0,PCB_ONFAULT(%r8)
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popq %rbx
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POP_FRAME_POINTER
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ret
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END(sgx_encls)
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/*
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* SGX operations fault handler
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*/
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ALIGN_TEXT
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sgx_onfault:
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movq $0,PCB_ONFAULT(%r8)
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movl $SGX_EFAULT,%eax
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popq %rbx
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POP_FRAME_POINTER
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ret
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