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sgx.c
(28.16 KB)
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sgx_linux.c
(3.44 KB)
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sgx_support.S
(2.23 KB)
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sgxvar.h
(2.83 KB)
Editing: sgx_support.S
/*- * Copyright (c) 2017 Ruslan Bukin <br@bsdpad.com> * All rights reserved. * * This software was developed by BAE Systems, the University of Cambridge * Computer Laboratory, and Memorial University under DARPA/AFRL contract * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing * (TC) research program. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $FreeBSD$ */ #include <machine/asmacros.h> #include <amd64/sgx/sgxvar.h> #include "assym.inc" .text /* * int * sgx_encls(uint32_t eax, uint64_t rbx, uint64_t rcx, uint64_t rdx); * %edi, %rsi, %rdx, %rcx */ ENTRY(sgx_encls) PUSH_FRAME_POINTER pushq %rbx movq PCPU(CURPCB),%r8 movl %edi,%eax movq %rsi,%rbx xchgq %rdx,%rcx movq $sgx_onfault,PCB_ONFAULT(%r8) .byte 0x0f, 0x01, 0xcf movq $0,PCB_ONFAULT(%r8) popq %rbx POP_FRAME_POINTER ret END(sgx_encls) /* * SGX operations fault handler */ ALIGN_TEXT sgx_onfault: movq $0,PCB_ONFAULT(%r8) movl $SGX_EFAULT,%eax popq %rbx POP_FRAME_POINTER ret
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