Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <assert.h> |
| 8 | #include <errno.h> |
| 9 | #include <string.h> |
| 10 | |
| 11 | #include <arch_helpers.h> |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 12 | #include <arch/aarch64/arch_features.h> |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 13 | #include <bl31/bl31.h> |
| 14 | #include <common/debug.h> |
| 15 | #include <common/runtime_svc.h> |
| 16 | #include <lib/el3_runtime/context_mgmt.h> |
| 17 | #include <lib/smccc.h> |
| 18 | #include <lib/spinlock.h> |
| 19 | #include <lib/utils.h> |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 20 | #include <plat/common/common_def.h> |
| 21 | #include <plat/common/platform.h> |
| 22 | #include <platform_def.h> |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 23 | #include <services/ffa_svc.h> |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 24 | #include <services/spmd_svc.h> |
| 25 | #include <smccc_helpers.h> |
| 26 | #include "spmd_private.h" |
| 27 | |
| 28 | /******************************************************************************* |
| 29 | * SPM Core context information. |
| 30 | ******************************************************************************/ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 31 | static spmd_spm_core_context_t spm_core_context[PLATFORM_CORE_COUNT]; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 32 | |
| 33 | /******************************************************************************* |
| 34 | * SPM Core attribute information read from its manifest. |
| 35 | ******************************************************************************/ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 36 | static spmc_manifest_attribute_t spmc_attrs; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 37 | |
| 38 | /******************************************************************************* |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 39 | * SPM Core entry point information. Discovered on the primary core and reused |
| 40 | * on secondary cores. |
| 41 | ******************************************************************************/ |
| 42 | static entry_point_info_t *spmc_ep_info; |
| 43 | |
| 44 | /******************************************************************************* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 45 | * SPM Core context on current CPU get helper. |
| 46 | ******************************************************************************/ |
| 47 | spmd_spm_core_context_t *spmd_get_context(void) |
| 48 | { |
| 49 | unsigned int linear_id = plat_my_core_pos(); |
| 50 | |
| 51 | return &spm_core_context[linear_id]; |
| 52 | } |
| 53 | |
| 54 | /******************************************************************************* |
Olivier Deprez | 87a9ee7 | 2019-10-28 08:52:45 +0000 | [diff] [blame] | 55 | * SPM Core entry point information get helper. |
| 56 | ******************************************************************************/ |
| 57 | entry_point_info_t *spmd_spmc_ep_info_get(void) |
| 58 | { |
| 59 | return spmc_ep_info; |
| 60 | } |
| 61 | |
| 62 | /******************************************************************************* |
Olivier Deprez | c7631a5 | 2020-03-23 09:53:06 +0100 | [diff] [blame] | 63 | * SPM Core ID getter. |
| 64 | ******************************************************************************/ |
| 65 | uint16_t spmd_spmc_id_get(void) |
| 66 | { |
| 67 | return spmc_attrs.spmc_id; |
| 68 | } |
| 69 | |
| 70 | /******************************************************************************* |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 71 | * Static function declaration. |
| 72 | ******************************************************************************/ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 73 | static int32_t spmd_init(void); |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 74 | static int spmd_spmc_init(void *pm_addr); |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 75 | static uint64_t spmd_ffa_error_return(void *handle, |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 76 | int error_code); |
| 77 | static uint64_t spmd_smc_forward(uint32_t smc_fid, |
| 78 | bool secure_origin, |
| 79 | uint64_t x1, |
| 80 | uint64_t x2, |
| 81 | uint64_t x3, |
| 82 | uint64_t x4, |
| 83 | void *handle); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 84 | |
| 85 | /******************************************************************************* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 86 | * This function takes an SPMC context pointer and performs a synchronous |
| 87 | * SPMC entry. |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 88 | ******************************************************************************/ |
| 89 | uint64_t spmd_spm_core_sync_entry(spmd_spm_core_context_t *spmc_ctx) |
| 90 | { |
| 91 | uint64_t rc; |
| 92 | |
| 93 | assert(spmc_ctx != NULL); |
| 94 | |
| 95 | cm_set_context(&(spmc_ctx->cpu_ctx), SECURE); |
| 96 | |
| 97 | /* Restore the context assigned above */ |
| 98 | cm_el1_sysregs_context_restore(SECURE); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 99 | #if SPMD_SPM_AT_SEL2 |
Max Shvetsov | bdf502d | 2020-02-25 13:56:19 +0000 | [diff] [blame] | 100 | cm_el2_sysregs_context_restore(SECURE); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 101 | #endif |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 102 | cm_set_next_eret_context(SECURE); |
| 103 | |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 104 | /* Enter SPMC */ |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 105 | rc = spmd_spm_core_enter(&spmc_ctx->c_rt_ctx); |
| 106 | |
| 107 | /* Save secure state */ |
| 108 | cm_el1_sysregs_context_save(SECURE); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 109 | #if SPMD_SPM_AT_SEL2 |
Max Shvetsov | bdf502d | 2020-02-25 13:56:19 +0000 | [diff] [blame] | 110 | cm_el2_sysregs_context_save(SECURE); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 111 | #endif |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 112 | |
| 113 | return rc; |
| 114 | } |
| 115 | |
| 116 | /******************************************************************************* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 117 | * This function returns to the place where spmd_spm_core_sync_entry() was |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 118 | * called originally. |
| 119 | ******************************************************************************/ |
| 120 | __dead2 void spmd_spm_core_sync_exit(uint64_t rc) |
| 121 | { |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 122 | spmd_spm_core_context_t *ctx = spmd_get_context(); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 123 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 124 | /* Get current CPU context from SPMC context */ |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 125 | assert(cm_get_context(SECURE) == &(ctx->cpu_ctx)); |
| 126 | |
| 127 | /* |
| 128 | * The SPMD must have initiated the original request through a |
| 129 | * synchronous entry into SPMC. Jump back to the original C runtime |
| 130 | * context with the value of rc in x0; |
| 131 | */ |
| 132 | spmd_spm_core_exit(ctx->c_rt_ctx, rc); |
| 133 | |
| 134 | panic(); |
| 135 | } |
| 136 | |
| 137 | /******************************************************************************* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 138 | * Jump to the SPM Core for the first time. |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 139 | ******************************************************************************/ |
| 140 | static int32_t spmd_init(void) |
| 141 | { |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 142 | spmd_spm_core_context_t *ctx = spmd_get_context(); |
| 143 | uint64_t rc; |
Olivier Deprez | 7c01633 | 2019-10-28 09:03:13 +0000 | [diff] [blame] | 144 | unsigned int linear_id = plat_my_core_pos(); |
| 145 | unsigned int core_id; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 146 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 147 | VERBOSE("SPM Core init start.\n"); |
Olivier Deprez | 7c01633 | 2019-10-28 09:03:13 +0000 | [diff] [blame] | 148 | ctx->state = SPMC_STATE_ON_PENDING; |
| 149 | |
| 150 | /* Set the SPMC context state on other CPUs to OFF */ |
Olivier Deprez | 33e4412 | 2020-04-16 17:54:27 +0200 | [diff] [blame] | 151 | for (core_id = 0U; core_id < PLATFORM_CORE_COUNT; core_id++) { |
Olivier Deprez | 7c01633 | 2019-10-28 09:03:13 +0000 | [diff] [blame] | 152 | if (core_id != linear_id) { |
| 153 | spm_core_context[core_id].state = SPMC_STATE_OFF; |
| 154 | } |
| 155 | } |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 156 | |
| 157 | rc = spmd_spm_core_sync_entry(ctx); |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 158 | if (rc != 0ULL) { |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 159 | ERROR("SPMC initialisation failed 0x%llx\n", rc); |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 160 | return 0; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 161 | } |
| 162 | |
Olivier Deprez | 7c01633 | 2019-10-28 09:03:13 +0000 | [diff] [blame] | 163 | ctx->state = SPMC_STATE_ON; |
| 164 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 165 | VERBOSE("SPM Core init end.\n"); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 166 | |
| 167 | return 1; |
| 168 | } |
| 169 | |
| 170 | /******************************************************************************* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 171 | * Loads SPMC manifest and inits SPMC. |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 172 | ******************************************************************************/ |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 173 | static int spmd_spmc_init(void *pm_addr) |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 174 | { |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 175 | spmd_spm_core_context_t *spm_ctx = spmd_get_context(); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 176 | uint32_t ep_attr; |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 177 | int rc; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 178 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 179 | /* Load the SPM Core manifest */ |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 180 | rc = plat_spm_core_manifest_load(&spmc_attrs, pm_addr); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 181 | if (rc != 0) { |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 182 | WARN("No or invalid SPM Core manifest image provided by BL2\n"); |
| 183 | return rc; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | /* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 187 | * Ensure that the SPM Core version is compatible with the SPM |
| 188 | * Dispatcher version. |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 189 | */ |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 190 | if ((spmc_attrs.major_version != FFA_VERSION_MAJOR) || |
| 191 | (spmc_attrs.minor_version > FFA_VERSION_MINOR)) { |
| 192 | WARN("Unsupported FFA version (%u.%u)\n", |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 193 | spmc_attrs.major_version, spmc_attrs.minor_version); |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 194 | return -EINVAL; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 195 | } |
| 196 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 197 | VERBOSE("FFA version (%u.%u)\n", spmc_attrs.major_version, |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 198 | spmc_attrs.minor_version); |
| 199 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 200 | VERBOSE("SPM Core run time EL%x.\n", |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 201 | SPMD_SPM_AT_SEL2 ? MODE_EL2 : MODE_EL1); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 202 | |
Max Shvetsov | e79062e | 2020-03-12 15:16:40 +0000 | [diff] [blame] | 203 | /* Validate the SPMC ID, Ensure high bit is set */ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 204 | if (((spmc_attrs.spmc_id >> SPMC_SECURE_ID_SHIFT) & |
| 205 | SPMC_SECURE_ID_MASK) == 0U) { |
| 206 | WARN("Invalid ID (0x%x) for SPMC.\n", spmc_attrs.spmc_id); |
| 207 | return -EINVAL; |
Max Shvetsov | e79062e | 2020-03-12 15:16:40 +0000 | [diff] [blame] | 208 | } |
| 209 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 210 | /* Validate the SPM Core execution state */ |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 211 | if ((spmc_attrs.exec_state != MODE_RW_64) && |
| 212 | (spmc_attrs.exec_state != MODE_RW_32)) { |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 213 | WARN("Unsupported %s%x.\n", "SPM Core execution state 0x", |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 214 | spmc_attrs.exec_state); |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 215 | return -EINVAL; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 216 | } |
| 217 | |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 218 | VERBOSE("%s%x.\n", "SPM Core execution state 0x", |
| 219 | spmc_attrs.exec_state); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 220 | |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 221 | #if SPMD_SPM_AT_SEL2 |
| 222 | /* Ensure manifest has not requested AArch32 state in S-EL2 */ |
| 223 | if (spmc_attrs.exec_state == MODE_RW_32) { |
| 224 | WARN("AArch32 state at S-EL2 is not supported.\n"); |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 225 | return -EINVAL; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | /* |
| 229 | * Check if S-EL2 is supported on this system if S-EL2 |
| 230 | * is required for SPM |
| 231 | */ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 232 | if (!is_armv8_4_sel2_present()) { |
| 233 | WARN("SPM Core run time S-EL2 is not supported.\n"); |
| 234 | return -EINVAL; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 235 | } |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 236 | #endif /* SPMD_SPM_AT_SEL2 */ |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 237 | |
| 238 | /* Initialise an entrypoint to set up the CPU context */ |
| 239 | ep_attr = SECURE | EP_ST_ENABLE; |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 240 | if ((read_sctlr_el3() & SCTLR_EE_BIT) != 0ULL) { |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 241 | ep_attr |= EP_EE_BIG; |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 242 | } |
| 243 | |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 244 | SET_PARAM_HEAD(spmc_ep_info, PARAM_EP, VERSION_1, ep_attr); |
| 245 | assert(spmc_ep_info->pc == BL32_BASE); |
| 246 | |
| 247 | /* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 248 | * Populate SPSR for SPM Core based upon validated parameters from the |
| 249 | * manifest. |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 250 | */ |
| 251 | if (spmc_attrs.exec_state == MODE_RW_32) { |
| 252 | spmc_ep_info->spsr = SPSR_MODE32(MODE32_svc, SPSR_T_ARM, |
| 253 | SPSR_E_LITTLE, |
| 254 | DAIF_FIQ_BIT | |
| 255 | DAIF_IRQ_BIT | |
| 256 | DAIF_ABT_BIT); |
| 257 | } else { |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 258 | |
| 259 | #if SPMD_SPM_AT_SEL2 |
| 260 | static const uint32_t runtime_el = MODE_EL2; |
| 261 | #else |
| 262 | static const uint32_t runtime_el = MODE_EL1; |
| 263 | #endif |
| 264 | spmc_ep_info->spsr = SPSR_64(runtime_el, |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 265 | MODE_SP_ELX, |
| 266 | DISABLE_ALL_EXCEPTIONS); |
| 267 | } |
| 268 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 269 | /* Initialise SPM Core context with this entry point information */ |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 270 | cm_setup_context(&spm_ctx->cpu_ctx, spmc_ep_info); |
| 271 | |
| 272 | /* Reuse PSCI affinity states to mark this SPMC context as off */ |
| 273 | spm_ctx->state = AFF_STATE_OFF; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 274 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 275 | INFO("SPM Core setup done.\n"); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 276 | |
Olivier Deprez | 9afca12 | 2019-10-28 09:15:52 +0000 | [diff] [blame] | 277 | /* Register power management hooks with PSCI */ |
| 278 | psci_register_spd_pm_hook(&spmd_pm); |
| 279 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 280 | /* Register init function for deferred init. */ |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 281 | bl31_register_bl32_init(&spmd_init); |
| 282 | |
| 283 | return 0; |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 284 | } |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 285 | |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 286 | /******************************************************************************* |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 287 | * Initialize context of SPM Core. |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 288 | ******************************************************************************/ |
| 289 | int spmd_setup(void) |
| 290 | { |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 291 | void *spmc_manifest; |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 292 | int rc; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 293 | |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 294 | spmc_ep_info = bl31_plat_get_next_image_ep_info(SECURE); |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 295 | if (spmc_ep_info == NULL) { |
| 296 | WARN("No SPM Core image provided by BL2 boot loader.\n"); |
| 297 | return -EINVAL; |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | /* Under no circumstances will this parameter be 0 */ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 301 | assert(spmc_ep_info->pc != 0ULL); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 302 | |
| 303 | /* |
| 304 | * Check if BL32 ep_info has a reference to 'tos_fw_config'. This will |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 305 | * be used as a manifest for the SPM Core at the next lower EL/mode. |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 306 | */ |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 307 | spmc_manifest = (void *)spmc_ep_info->args.arg0; |
| 308 | if (spmc_manifest == NULL) { |
| 309 | ERROR("Invalid or absent SPM Core manifest.\n"); |
| 310 | return -EINVAL; |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | /* Load manifest, init SPMC */ |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 314 | rc = spmd_spmc_init(spmc_manifest); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 315 | if (rc != 0) { |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 316 | WARN("Booting device without SPM initialization.\n"); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 317 | } |
| 318 | |
Olivier Deprez | 69ca84a | 2020-02-07 15:44:43 +0100 | [diff] [blame] | 319 | return rc; |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | /******************************************************************************* |
| 323 | * Forward SMC to the other security state |
| 324 | ******************************************************************************/ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 325 | static uint64_t spmd_smc_forward(uint32_t smc_fid, |
| 326 | bool secure_origin, |
| 327 | uint64_t x1, |
| 328 | uint64_t x2, |
| 329 | uint64_t x3, |
| 330 | uint64_t x4, |
| 331 | void *handle) |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 332 | { |
Olivier Deprez | ebc3477 | 2020-04-16 16:59:21 +0200 | [diff] [blame] | 333 | unsigned int secure_state_in = (secure_origin) ? SECURE : NON_SECURE; |
| 334 | unsigned int secure_state_out = (!secure_origin) ? SECURE : NON_SECURE; |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 335 | |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 336 | /* Save incoming security state */ |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 337 | cm_el1_sysregs_context_save(secure_state_in); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 338 | #if SPMD_SPM_AT_SEL2 |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 339 | cm_el2_sysregs_context_save(secure_state_in); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 340 | #endif |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 341 | |
| 342 | /* Restore outgoing security state */ |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 343 | cm_el1_sysregs_context_restore(secure_state_out); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 344 | #if SPMD_SPM_AT_SEL2 |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 345 | cm_el2_sysregs_context_restore(secure_state_out); |
Max Shvetsov | e7fd80e | 2020-02-25 13:55:00 +0000 | [diff] [blame] | 346 | #endif |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 347 | cm_set_next_eret_context(secure_state_out); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 348 | |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 349 | SMC_RET8(cm_get_context(secure_state_out), smc_fid, x1, x2, x3, x4, |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 350 | SMC_GET_GP(handle, CTX_GPREG_X5), |
| 351 | SMC_GET_GP(handle, CTX_GPREG_X6), |
| 352 | SMC_GET_GP(handle, CTX_GPREG_X7)); |
| 353 | } |
| 354 | |
| 355 | /******************************************************************************* |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 356 | * Return FFA_ERROR with specified error code |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 357 | ******************************************************************************/ |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 358 | static uint64_t spmd_ffa_error_return(void *handle, int error_code) |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 359 | { |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 360 | SMC_RET8(handle, FFA_ERROR, |
| 361 | FFA_TARGET_INFO_MBZ, error_code, |
| 362 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 363 | FFA_PARAM_MBZ, FFA_PARAM_MBZ); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 364 | } |
| 365 | |
Olivier Deprez | 33e4412 | 2020-04-16 17:54:27 +0200 | [diff] [blame] | 366 | /******************************************************************************* |
| 367 | * spmd_check_address_in_binary_image |
| 368 | ******************************************************************************/ |
| 369 | bool spmd_check_address_in_binary_image(uint64_t address) |
| 370 | { |
| 371 | assert(!check_uptr_overflow(spmc_attrs.load_address, spmc_attrs.binary_size)); |
| 372 | |
| 373 | return ((address >= spmc_attrs.load_address) && |
| 374 | (address < (spmc_attrs.load_address + spmc_attrs.binary_size))); |
| 375 | } |
| 376 | |
Olivier Deprez | ebc3477 | 2020-04-16 16:59:21 +0200 | [diff] [blame] | 377 | /****************************************************************************** |
| 378 | * spmd_is_spmc_message |
| 379 | *****************************************************************************/ |
| 380 | static bool spmd_is_spmc_message(unsigned int ep) |
| 381 | { |
| 382 | return ((ffa_endpoint_destination(ep) == SPMD_DIRECT_MSG_ENDPOINT_ID) |
| 383 | && (ffa_endpoint_source(ep) == spmc_attrs.spmc_id)); |
| 384 | } |
| 385 | |
Olivier Deprez | 33e4412 | 2020-04-16 17:54:27 +0200 | [diff] [blame] | 386 | /****************************************************************************** |
| 387 | * spmd_handle_spmc_message |
| 388 | *****************************************************************************/ |
Olivier Deprez | c7631a5 | 2020-03-23 09:53:06 +0100 | [diff] [blame] | 389 | static int spmd_handle_spmc_message(unsigned long long msg, |
| 390 | unsigned long long parm1, unsigned long long parm2, |
| 391 | unsigned long long parm3, unsigned long long parm4) |
Olivier Deprez | 33e4412 | 2020-04-16 17:54:27 +0200 | [diff] [blame] | 392 | { |
| 393 | VERBOSE("%s %llx %llx %llx %llx %llx\n", __func__, |
| 394 | msg, parm1, parm2, parm3, parm4); |
| 395 | |
| 396 | switch (msg) { |
| 397 | case SPMD_DIRECT_MSG_SET_ENTRY_POINT: |
| 398 | return spmd_pm_secondary_core_set_ep(parm1, parm2, parm3); |
| 399 | default: |
| 400 | break; |
| 401 | } |
| 402 | |
| 403 | return -EINVAL; |
| 404 | } |
| 405 | |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 406 | /******************************************************************************* |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 407 | * This function handles all SMCs in the range reserved for FFA. Each call is |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 408 | * either forwarded to the other security state or handled by the SPM dispatcher |
| 409 | ******************************************************************************/ |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 410 | uint64_t spmd_smc_handler(uint32_t smc_fid, |
| 411 | uint64_t x1, |
| 412 | uint64_t x2, |
| 413 | uint64_t x3, |
| 414 | uint64_t x4, |
| 415 | void *cookie, |
| 416 | void *handle, |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 417 | uint64_t flags) |
| 418 | { |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 419 | spmd_spm_core_context_t *ctx = spmd_get_context(); |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 420 | bool secure_origin; |
| 421 | int32_t ret; |
J-Alves | 4c95c70 | 2020-05-26 14:03:05 +0100 | [diff] [blame] | 422 | uint32_t input_version; |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 423 | |
| 424 | /* Determine which security state this SMC originated from */ |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 425 | secure_origin = is_caller_secure(flags); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 426 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 427 | INFO("SPM: 0x%x 0x%llx 0x%llx 0x%llx 0x%llx 0x%llx 0x%llx 0x%llx\n", |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 428 | smc_fid, x1, x2, x3, x4, SMC_GET_GP(handle, CTX_GPREG_X5), |
| 429 | SMC_GET_GP(handle, CTX_GPREG_X6), |
| 430 | SMC_GET_GP(handle, CTX_GPREG_X7)); |
| 431 | |
| 432 | switch (smc_fid) { |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 433 | case FFA_ERROR: |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 434 | /* |
| 435 | * Check if this is the first invocation of this interface on |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 436 | * this CPU. If so, then indicate that the SPM Core initialised |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 437 | * unsuccessfully. |
| 438 | */ |
Olivier Deprez | 7c01633 | 2019-10-28 09:03:13 +0000 | [diff] [blame] | 439 | if (secure_origin && (ctx->state == SPMC_STATE_ON_PENDING)) { |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 440 | spmd_spm_core_sync_exit(x2); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 441 | } |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 442 | |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 443 | return spmd_smc_forward(smc_fid, secure_origin, |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 444 | x1, x2, x3, x4, handle); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 445 | break; /* not reached */ |
| 446 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 447 | case FFA_VERSION: |
J-Alves | 4c95c70 | 2020-05-26 14:03:05 +0100 | [diff] [blame] | 448 | input_version = (uint32_t)(0xFFFFFFFF & x1); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 449 | /* |
J-Alves | 4c95c70 | 2020-05-26 14:03:05 +0100 | [diff] [blame] | 450 | * If caller is secure and SPMC was initialized, |
| 451 | * return FFA_VERSION of SPMD. |
| 452 | * If caller is non secure and SPMC was initialized, |
| 453 | * return SPMC's version. |
| 454 | * Sanity check to "input_version". |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 455 | */ |
J-Alves | 4c95c70 | 2020-05-26 14:03:05 +0100 | [diff] [blame] | 456 | if ((input_version & FFA_VERSION_BIT31_MASK) || |
| 457 | (ctx->state == SPMC_STATE_RESET)) { |
| 458 | ret = FFA_ERROR_NOT_SUPPORTED; |
| 459 | } else if (!secure_origin) { |
| 460 | ret = MAKE_FFA_VERSION(spmc_attrs.major_version, spmc_attrs.minor_version); |
| 461 | } else { |
| 462 | ret = MAKE_FFA_VERSION(FFA_VERSION_MAJOR, FFA_VERSION_MINOR); |
| 463 | } |
| 464 | |
| 465 | SMC_RET8(handle, ret, FFA_TARGET_INFO_MBZ, FFA_TARGET_INFO_MBZ, |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 466 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 467 | FFA_PARAM_MBZ, FFA_PARAM_MBZ); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 468 | break; /* not reached */ |
| 469 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 470 | case FFA_FEATURES: |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 471 | /* |
| 472 | * This is an optional interface. Do the minimal checks and |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 473 | * forward to SPM Core which will handle it if implemented. |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 474 | */ |
| 475 | |
| 476 | /* |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 477 | * Check if x1 holds a valid FFA fid. This is an |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 478 | * optimization. |
| 479 | */ |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 480 | if (!is_ffa_fid(x1)) { |
| 481 | return spmd_ffa_error_return(handle, |
| 482 | FFA_ERROR_NOT_SUPPORTED); |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 483 | } |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 484 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 485 | /* Forward SMC from Normal world to the SPM Core */ |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 486 | if (!secure_origin) { |
| 487 | return spmd_smc_forward(smc_fid, secure_origin, |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 488 | x1, x2, x3, x4, handle); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 489 | } |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 490 | |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 491 | /* |
| 492 | * Return success if call was from secure world i.e. all |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 493 | * FFA functions are supported. This is essentially a |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 494 | * nop. |
| 495 | */ |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 496 | SMC_RET8(handle, FFA_SUCCESS_SMC32, x1, x2, x3, x4, |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 497 | SMC_GET_GP(handle, CTX_GPREG_X5), |
| 498 | SMC_GET_GP(handle, CTX_GPREG_X6), |
| 499 | SMC_GET_GP(handle, CTX_GPREG_X7)); |
| 500 | |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 501 | break; /* not reached */ |
| 502 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 503 | case FFA_ID_GET: |
Max Shvetsov | e79062e | 2020-03-12 15:16:40 +0000 | [diff] [blame] | 504 | /* |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 505 | * Returns the ID of the calling FFA component. |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 506 | */ |
Max Shvetsov | e79062e | 2020-03-12 15:16:40 +0000 | [diff] [blame] | 507 | if (!secure_origin) { |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 508 | SMC_RET8(handle, FFA_SUCCESS_SMC32, |
| 509 | FFA_TARGET_INFO_MBZ, FFA_NS_ENDPOINT_ID, |
| 510 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 511 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 512 | FFA_PARAM_MBZ); |
Max Shvetsov | e79062e | 2020-03-12 15:16:40 +0000 | [diff] [blame] | 513 | } |
| 514 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 515 | SMC_RET8(handle, FFA_SUCCESS_SMC32, |
| 516 | FFA_TARGET_INFO_MBZ, spmc_attrs.spmc_id, |
| 517 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 518 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 519 | FFA_PARAM_MBZ); |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 520 | |
Max Shvetsov | e79062e | 2020-03-12 15:16:40 +0000 | [diff] [blame] | 521 | break; /* not reached */ |
| 522 | |
Olivier Deprez | 33e4412 | 2020-04-16 17:54:27 +0200 | [diff] [blame] | 523 | case FFA_MSG_SEND_DIRECT_REQ_SMC32: |
| 524 | if (secure_origin && spmd_is_spmc_message(x1)) { |
| 525 | ret = spmd_handle_spmc_message(x3, x4, |
| 526 | SMC_GET_GP(handle, CTX_GPREG_X5), |
| 527 | SMC_GET_GP(handle, CTX_GPREG_X6), |
| 528 | SMC_GET_GP(handle, CTX_GPREG_X7)); |
| 529 | |
| 530 | SMC_RET8(handle, FFA_SUCCESS_SMC32, |
| 531 | FFA_TARGET_INFO_MBZ, ret, |
| 532 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 533 | FFA_PARAM_MBZ, FFA_PARAM_MBZ, |
| 534 | FFA_PARAM_MBZ); |
| 535 | } else { |
| 536 | /* Forward direct message to the other world */ |
| 537 | return spmd_smc_forward(smc_fid, secure_origin, |
| 538 | x1, x2, x3, x4, handle); |
| 539 | } |
| 540 | break; /* Not reached */ |
| 541 | |
| 542 | case FFA_MSG_SEND_DIRECT_RESP_SMC32: |
| 543 | if (secure_origin && spmd_is_spmc_message(x1)) { |
| 544 | spmd_spm_core_sync_exit(0); |
| 545 | } else { |
| 546 | /* Forward direct message to the other world */ |
| 547 | return spmd_smc_forward(smc_fid, secure_origin, |
| 548 | x1, x2, x3, x4, handle); |
| 549 | } |
| 550 | break; /* Not reached */ |
| 551 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 552 | case FFA_RX_RELEASE: |
| 553 | case FFA_RXTX_MAP_SMC32: |
| 554 | case FFA_RXTX_MAP_SMC64: |
| 555 | case FFA_RXTX_UNMAP: |
| 556 | case FFA_MSG_RUN: |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 557 | /* This interface must be invoked only by the Normal world */ |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 558 | if (secure_origin) { |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 559 | return spmd_ffa_error_return(handle, |
| 560 | FFA_ERROR_NOT_SUPPORTED); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 561 | } |
| 562 | |
| 563 | /* Fall through to forward the call to the other world */ |
| 564 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 565 | case FFA_PARTITION_INFO_GET: |
| 566 | case FFA_MSG_SEND: |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 567 | case FFA_MSG_SEND_DIRECT_REQ_SMC64: |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 568 | case FFA_MSG_SEND_DIRECT_RESP_SMC64: |
| 569 | case FFA_MEM_DONATE_SMC32: |
| 570 | case FFA_MEM_DONATE_SMC64: |
| 571 | case FFA_MEM_LEND_SMC32: |
| 572 | case FFA_MEM_LEND_SMC64: |
| 573 | case FFA_MEM_SHARE_SMC32: |
| 574 | case FFA_MEM_SHARE_SMC64: |
| 575 | case FFA_MEM_RETRIEVE_REQ_SMC32: |
| 576 | case FFA_MEM_RETRIEVE_REQ_SMC64: |
| 577 | case FFA_MEM_RETRIEVE_RESP: |
| 578 | case FFA_MEM_RELINQUISH: |
| 579 | case FFA_MEM_RECLAIM: |
| 580 | case FFA_SUCCESS_SMC32: |
| 581 | case FFA_SUCCESS_SMC64: |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 582 | /* |
| 583 | * TODO: Assume that no requests originate from EL3 at the |
| 584 | * moment. This will change if a SP service is required in |
| 585 | * response to secure interrupts targeted to EL3. Until then |
| 586 | * simply forward the call to the Normal world. |
| 587 | */ |
| 588 | |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 589 | return spmd_smc_forward(smc_fid, secure_origin, |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 590 | x1, x2, x3, x4, handle); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 591 | break; /* not reached */ |
| 592 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 593 | case FFA_MSG_WAIT: |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 594 | /* |
| 595 | * Check if this is the first invocation of this interface on |
| 596 | * this CPU from the Secure world. If so, then indicate that the |
Olivier Deprez | 2bae35f | 2020-04-16 13:39:06 +0200 | [diff] [blame] | 597 | * SPM Core initialised successfully. |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 598 | */ |
Olivier Deprez | 7c01633 | 2019-10-28 09:03:13 +0000 | [diff] [blame] | 599 | if (secure_origin && (ctx->state == SPMC_STATE_ON_PENDING)) { |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 600 | spmd_spm_core_sync_exit(0); |
| 601 | } |
| 602 | |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 603 | /* Fall through to forward the call to the other world */ |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 604 | |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 605 | case FFA_MSG_YIELD: |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 606 | /* This interface must be invoked only by the Secure world */ |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 607 | if (!secure_origin) { |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 608 | return spmd_ffa_error_return(handle, |
| 609 | FFA_ERROR_NOT_SUPPORTED); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 610 | } |
| 611 | |
Olivier Deprez | 41ff36a | 2019-12-23 16:21:12 +0100 | [diff] [blame] | 612 | return spmd_smc_forward(smc_fid, secure_origin, |
Max Shvetsov | 745889c | 2020-02-27 14:54:21 +0000 | [diff] [blame] | 613 | x1, x2, x3, x4, handle); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 614 | break; /* not reached */ |
| 615 | |
| 616 | default: |
| 617 | WARN("SPM: Unsupported call 0x%08x\n", smc_fid); |
J-Alves | 2672cde | 2020-05-07 18:42:25 +0100 | [diff] [blame] | 618 | return spmd_ffa_error_return(handle, FFA_ERROR_NOT_SUPPORTED); |
Achin Gupta | 86f2353 | 2019-10-11 15:41:16 +0100 | [diff] [blame] | 619 | } |
| 620 | } |