Manish V Badarkhe | 8a76603 | 2022-02-23 11:26:53 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2022 Arm Limited. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | * |
| 6 | * DRTM service |
| 7 | * |
| 8 | * Authors: |
| 9 | * Lucian Paul-Trifu <lucian.paultrifu@gmail.com> |
| 10 | * Brian Nezvadovitz <brinez@microsoft.com> 2021-02-01 |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #ifndef ARM_DRTM_SVC_H |
| 15 | #define ARM_DRTM_SVC_H |
| 16 | |
| 17 | /* |
| 18 | * SMC function IDs for DRTM Service |
| 19 | * Upper word bits set: Fast call, SMC64, Standard Secure Svc. Call (OEN = 4) |
| 20 | */ |
| 21 | #define DRTM_FID(func_num) \ |
| 22 | ((SMC_TYPE_FAST << FUNCID_TYPE_SHIFT) | \ |
| 23 | (SMC_64 << FUNCID_CC_SHIFT) | \ |
| 24 | (OEN_STD_START << FUNCID_OEN_SHIFT) | \ |
| 25 | ((func_num) << FUNCID_NUM_SHIFT)) |
| 26 | |
| 27 | #define DRTM_FNUM_SVC_VERSION U(0x110) |
| 28 | #define DRTM_FNUM_SVC_FEATURES U(0x111) |
| 29 | #define DRTM_FNUM_SVC_UNPROTECT_MEM U(0x113) |
| 30 | #define DRTM_FNUM_SVC_DYNAMIC_LAUNCH U(0x114) |
| 31 | #define DRTM_FNUM_SVC_CLOSE_LOCALITY U(0x115) |
| 32 | #define DRTM_FNUM_SVC_GET_ERROR U(0x116) |
| 33 | #define DRTM_FNUM_SVC_SET_ERROR U(0x117) |
| 34 | #define DRTM_FNUM_SVC_SET_TCB_HASH U(0x118) |
| 35 | #define DRTM_FNUM_SVC_LOCK_TCB_HASH U(0x119) |
| 36 | |
| 37 | #define ARM_DRTM_SVC_VERSION DRTM_FID(DRTM_FNUM_SVC_VERSION) |
| 38 | #define ARM_DRTM_SVC_FEATURES DRTM_FID(DRTM_FNUM_SVC_FEATURES) |
| 39 | #define ARM_DRTM_SVC_UNPROTECT_MEM DRTM_FID(DRTM_FNUM_SVC_UNPROTECT_MEM) |
| 40 | #define ARM_DRTM_SVC_DYNAMIC_LAUNCH DRTM_FID(DRTM_FNUM_SVC_DYNAMIC_LAUNCH) |
| 41 | #define ARM_DRTM_SVC_CLOSE_LOCALITY DRTM_FID(DRTM_FNUM_SVC_CLOSE_LOCALITY) |
| 42 | #define ARM_DRTM_SVC_GET_ERROR DRTM_FID(DRTM_FNUM_SVC_GET_ERROR) |
| 43 | #define ARM_DRTM_SVC_SET_ERROR DRTM_FID(DRTM_FNUM_SVC_SET_ERROR) |
| 44 | #define ARM_DRTM_SVC_SET_TCB_HASH DRTM_FID(DRTM_FNUM_SVC_SET_TCB_HASH) |
| 45 | #define ARM_DRTM_SVC_LOCK_TCB_HASH DRTM_FID(DRTM_FNUM_SVC_LOCK_TCB_HASH) |
| 46 | |
| 47 | #define is_drtm_fid(_fid) \ |
| 48 | (((_fid) >= ARM_DRTM_SVC_VERSION) && ((_fid) <= ARM_DRTM_SVC_LOCK_TCB_HASH)) |
| 49 | |
| 50 | /* ARM DRTM Service Calls version numbers */ |
| 51 | #define ARM_DRTM_VERSION_MAJOR U(0) |
| 52 | #define ARM_DRTM_VERSION_MAJOR_SHIFT 16 |
| 53 | #define ARM_DRTM_VERSION_MAJOR_MASK U(0x7FFF) |
| 54 | #define ARM_DRTM_VERSION_MINOR U(1) |
| 55 | #define ARM_DRTM_VERSION_MINOR_SHIFT 0 |
| 56 | #define ARM_DRTM_VERSION_MINOR_MASK U(0xFFFF) |
| 57 | |
| 58 | #define ARM_DRTM_VERSION \ |
| 59 | ((((ARM_DRTM_VERSION_MAJOR) & ARM_DRTM_VERSION_MAJOR_MASK) << \ |
| 60 | ARM_DRTM_VERSION_MAJOR_SHIFT) \ |
| 61 | | (((ARM_DRTM_VERSION_MINOR) & ARM_DRTM_VERSION_MINOR_MASK) << \ |
| 62 | ARM_DRTM_VERSION_MINOR_SHIFT)) |
| 63 | |
| 64 | #define ARM_DRTM_FUNC_SHIFT U(63) |
| 65 | #define ARM_DRTM_FUNC_MASK U(0x1) |
| 66 | #define ARM_DRTM_FUNC_ID U(0x0) |
| 67 | #define ARM_DRTM_FEAT_ID U(0x1) |
| 68 | |
| 69 | /* Initialization routine for the DRTM service */ |
| 70 | int drtm_setup(void); |
| 71 | |
| 72 | /* Handler to be called to handle DRTM SMC calls */ |
| 73 | uint64_t drtm_smc_handler(uint32_t smc_fid, |
| 74 | uint64_t x1, |
| 75 | uint64_t x2, |
| 76 | uint64_t x3, |
| 77 | uint64_t x4, |
| 78 | void *cookie, |
| 79 | void *handle, |
| 80 | uint64_t flags); |
| 81 | |
| 82 | #endif /* ARM_DRTM_SVC_H */ |