sgxvar.h

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    1 /*-
    2  * Copyright (c) 2017 Ruslan Bukin <br@bsdpad.com>
    3  * All rights reserved.
    4  *
    5  * This software was developed by BAE Systems, the University of Cambridge
    6  * Computer Laboratory, and Memorial University under DARPA/AFRL contract
    7  * FA8650-15-C-7558 ("CADETS"), as part of the DARPA Transparent Computing
    8  * (TC) research program.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  * $FreeBSD$
   32  */
   33 
   34 #ifndef _AMD64_SGX_SGXVAR_H_
   35 #define _AMD64_SGX_SGXVAR_H_
   36 
   37 #define SGX_CPUID                       0x12
   38 #define SGX_PAGE_SIZE                   4096
   39 #define SGX_VA_PAGE_SLOTS               512
   40 #define SGX_VA_PAGES_OFFS               512
   41 #define SGX_SECS_VM_OBJECT_INDEX        -1
   42 #define SGX_SIGSTRUCT_SIZE              1808
   43 #define SGX_EINITTOKEN_SIZE             304
   44 #define SGX_IOCTL_MAX_DATA_LEN          26
   45 #define SGX_ENCL_SIZE_MAX_DEF           0x1000000000ULL
   46 #define SGX_EFAULT                      99
   47 
   48 #ifndef LOCORE
   49 static MALLOC_DEFINE(M_SGX, "sgx", "SGX driver");
   50 
   51 struct sgx_vm_handle {
   52         struct sgx_softc        *sc;
   53         vm_object_t             mem;
   54         uint64_t                base;
   55         vm_size_t               size;
   56         struct sgx_enclave      *enclave;
   57 };
   58 
   59 /* EPC (Enclave Page Cache) page. */
   60 struct epc_page {
   61         uint64_t                base;
   62         uint64_t                phys;
   63         int                     index;
   64 };
   65 
   66 struct sgx_enclave {
   67         uint64_t                        base;
   68         uint64_t                        size;
   69         struct sgx_vm_handle            *vmh;
   70         TAILQ_ENTRY(sgx_enclave)        next;
   71         vm_object_t                     object;
   72         struct epc_page                 *secs_epc_page;
   73 };
   74 
   75 struct sgx_softc {
   76         struct cdev                     *sgx_cdev;
   77         struct mtx                      mtx_encls;
   78         struct mtx                      mtx;
   79         uint64_t                        epc_base;
   80         uint64_t                        epc_size;
   81         struct epc_page                 *epc_pages;
   82         struct vmem                     *vmem_epc;
   83         uint32_t                        npages;
   84         TAILQ_HEAD(, sgx_enclave)       enclaves;
   85         uint64_t                        enclave_size_max;
   86         uint8_t                         state;
   87 #define SGX_STATE_RUNNING               (1 << 0)
   88 };
   89 #endif /* !LOCORE */
   90 
   91 #endif /* !_AMD64_SGX_SGXVAR_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/amd64/sgx/sgxvar.h

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sys/amd64/sgx/sgxvar.h