sgxreg.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 /* Machine-defined variables. */
   35 
   36 #ifndef _MACHINE_SGXREG_H_
   37 #define _MACHINE_SGXREG_H_
   38 
   39 /* Error codes. */
   40 #define SGX_SUCCESS                     0
   41 #define SGX_INVALID_SIG_STRUCT          1       /* EINIT */
   42 #define SGX_INVALID_ATTRIBUTE           2       /* EINIT, EGETKEY */
   43 #define SGX_BLSTATE                     3       /* EBLOCK */
   44 #define SGX_INVALID_MEASUREMENT         4       /* EINIT */
   45 #define SGX_NOTBLOCKABLE                5       /* EBLOCK */
   46 #define SGX_PG_INVLD                    6       /* EBLOCK */
   47 #define SGX_LOCKFAIL                    7       /* EBLOCK, EMODPR, EMODT */
   48 #define SGX_INVALID_SIGNATURE           8       /* EINIT */
   49 #define SGX_MAC_COMPARE_FAIL            9       /* ELDB, ELDU */
   50 #define SGX_PAGE_NOT_BLOCKED            10      /* EWB */
   51 #define SGX_NOT_TRACKED                 11      /* EWB, EACCEPT */
   52 #define SGX_VA_SLOT_OCCUPIED            12      /* EWB */
   53 #define SGX_CHILD_PRESENT               13      /* EWB, EREMOVE */
   54 #define SGX_ENCLAVE_ACT                 14      /* EREMOVE */
   55 #define SGX_ENTRYEPOCH_LOCKED           15      /* EBLOCK */
   56 #define SGX_INVALID_EINIT_TOKEN         16      /* EINIT */
   57 #define SGX_PREV_TRK_INCMPL             17      /* ETRACK */
   58 #define SGX_PG_IS_SECS                  18      /* EBLOCK */
   59 #define SGX_PAGE_ATTRIBUTES_MISMATCH    19      /* EACCEPT, EACCEPTCOPY */
   60 #define SGX_PAGE_NOT_MODIFIABLE         20      /* EMODPR, EMODT */
   61 #define SGX_INVALID_CPUSVN              32      /* EINIT, EGETKEY */
   62 #define SGX_INVALID_ISVSVN              64      /* EGETKEY */
   63 #define SGX_UNMASKED_EVENT              128     /* EINIT */
   64 #define SGX_INVALID_KEYNAME             256     /* EGETKEY */
   65 
   66 /*
   67  * 2.10 Page Information (PAGEINFO)
   68  * PAGEINFO is an architectural data structure that is used as a parameter
   69  * to the EPC-management instructions. It requires 32-Byte alignment.
   70  */
   71 struct page_info {
   72         uint64_t linaddr;
   73         uint64_t srcpge;
   74         union {
   75                 struct secinfo *secinfo;
   76                 uint64_t pcmd;
   77         };
   78         uint64_t secs;
   79 } __aligned(32);
   80 
   81 /*
   82  * 2.11 Security Information (SECINFO)
   83  * The SECINFO data structure holds meta-data about an enclave page.
   84  */
   85 struct secinfo {
   86         uint64_t flags;
   87 #define SECINFO_FLAGS_PT_S      8       /* Page type shift */
   88 #define SECINFO_FLAGS_PT_M      (0xff << SECINFO_FLAGS_PT_S)
   89         uint64_t reserved[7];
   90 } __aligned(64);
   91 
   92 /*
   93  * 2.7.1 ATTRIBUTES
   94  * The ATTRIBUTES data structure is comprised of bit-granular fields that
   95  * are used in the SECS, CPUID enumeration, the REPORT and the KEYREQUEST
   96  * structures.
   97  */
   98 struct secs_attr {
   99         uint8_t         reserved1: 1;
  100         uint8_t         debug: 1;
  101         uint8_t         mode64bit: 1;
  102         uint8_t         reserved2: 1;
  103         uint8_t         provisionkey: 1;
  104         uint8_t         einittokenkey: 1;
  105         uint8_t         reserved3: 2;
  106 #define SECS_ATTR_RSV4_SIZE     7
  107         uint8_t         reserved4[SECS_ATTR_RSV4_SIZE];
  108         uint64_t        xfrm;                   /* X-Feature Request Mask */
  109 };
  110 
  111 /*
  112  * 2.7 SGX Enclave Control Structure (SECS)
  113  * The SECS data structure requires 4K-Bytes alignment.
  114  */
  115 struct secs {
  116         uint64_t        size;
  117         uint64_t        base;
  118         uint32_t        ssa_frame_size;
  119         uint32_t        misc_select;
  120 #define SECS_RSV1_SIZE  24
  121         uint8_t         reserved1[SECS_RSV1_SIZE];
  122         struct secs_attr attributes;
  123         uint8_t         mr_enclave[32];
  124 #define SECS_RSV2_SIZE  32
  125         uint8_t         reserved2[SECS_RSV2_SIZE];
  126         uint8_t         mr_signer[32];
  127 #define SECS_RSV3_SIZE  96
  128         uint8_t         reserved3[SECS_RSV3_SIZE];
  129         uint16_t        isv_prod_id;
  130         uint16_t        isv_svn;
  131 #define SECS_RSV4_SIZE  3836
  132         uint8_t         reserved4[SECS_RSV4_SIZE];
  133 };
  134 
  135 /*
  136  * 2.8 Thread Control Structure (TCS)
  137  * Each executing thread in the enclave is associated with a
  138  * Thread Control Structure. It requires 4K-Bytes alignment.
  139  */
  140 struct tcs {
  141         uint64_t        reserved1;
  142         uint64_t        flags;
  143         uint64_t        ossa;
  144         uint32_t        cssa;
  145         uint32_t        nssa;
  146         uint64_t        oentry;
  147         uint64_t        reserved2;
  148         uint64_t        ofsbasgx;
  149         uint64_t        ogsbasgx;
  150         uint32_t        fslimit;
  151         uint32_t        gslimit;
  152         uint64_t        reserved3[503];
  153 };
  154 
  155 #endif /* !_MACHINE_SGXREG_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/amd64/include/sgxreg.h

FreeBSD/Linux Kernel Cross Reference
sys/amd64/include/sgxreg.h