* Re: [PATCH v2 2/9] powerpc/pseries: Define HVPIPE specific macros
@ 2025-08-13 19:32 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2025-08-13 19:32 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp
::::::
:::::: Manual check reason: "low confidence static check warning: arch/powerpc/kernel/rtas.c:378:46: sparse: sparse: obsolete array initializer, use C99 syntax"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20250812225715.339225-3-haren@linux.ibm.com>
References: <20250812225715.339225-3-haren@linux.ibm.com>
TO: Haren Myneni <haren@linux.ibm.com>
TO: linuxppc-dev@lists.ozlabs.org
CC: maddy@linux.ibm.com
CC: mpe@ellerman.id.au
CC: msuchanek@suse.de
CC: mahesh@linux.ibm.com
CC: tyreld@linux.ibm.com
CC: npiggin@gmail.com
CC: bjking1@linux.ibm.com
CC: hbabu@us.ibm.com
CC: haren@linux.ibm.com
Hi Haren,
kernel test robot noticed the following build warnings:
[auto build test WARNING on v6.17-rc1]
[also build test WARNING on linus/master next-20250813]
[cannot apply to powerpc/next powerpc/fixes]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Haren-Myneni/powerpc-pseries-Define-papr-hvpipe-ioctl/20250813-070046
base: v6.17-rc1
patch link: https://lore.kernel.org/r/20250812225715.339225-3-haren%40linux.ibm.com
patch subject: [PATCH v2 2/9] powerpc/pseries: Define HVPIPE specific macros
:::::: branch date: 20 hours ago
:::::: commit date: 20 hours ago
config: powerpc-randconfig-r112-20250813 (https://download.01.org/0day-ci/archive/20250814/202508140315.vBExalVa-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 8.5.0
reproduce: (https://download.01.org/0day-ci/archive/20250814/202508140315.vBExalVa-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202508140315.vBExalVa-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> arch/powerpc/kernel/rtas.c:378:46: sparse: sparse: obsolete array initializer, use C99 syntax
arch/powerpc/kernel/rtas.c:407:43: sparse: sparse: obsolete array initializer, use C99 syntax
>> arch/powerpc/kernel/rtas.c:101:1: sparse: sparse: symbol 'rtas_ibm_receive_hvpipe_msg_lock' was not declared. Should it be static?
vim +378 arch/powerpc/kernel/rtas.c
adf7a019e5f826 Nathan Lynch 2023-12-12 103
8252b88294d2a7 Nathan Lynch 2023-02-10 104 static struct rtas_function rtas_function_table[] __ro_after_init = {
8252b88294d2a7 Nathan Lynch 2023-02-10 105 [RTAS_FNIDX__CHECK_EXCEPTION] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 106 .name = "check-exception",
8252b88294d2a7 Nathan Lynch 2023-02-10 107 },
8252b88294d2a7 Nathan Lynch 2023-02-10 108 [RTAS_FNIDX__DISPLAY_CHARACTER] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 109 .name = "display-character",
8252b88294d2a7 Nathan Lynch 2023-02-10 110 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 111 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 112 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 113 },
8252b88294d2a7 Nathan Lynch 2023-02-10 114 },
8252b88294d2a7 Nathan Lynch 2023-02-10 115 [RTAS_FNIDX__EVENT_SCAN] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 116 .name = "event-scan",
8252b88294d2a7 Nathan Lynch 2023-02-10 117 },
8252b88294d2a7 Nathan Lynch 2023-02-10 118 [RTAS_FNIDX__FREEZE_TIME_BASE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 119 .name = "freeze-time-base",
8252b88294d2a7 Nathan Lynch 2023-02-10 120 },
8252b88294d2a7 Nathan Lynch 2023-02-10 121 [RTAS_FNIDX__GET_POWER_LEVEL] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 122 .name = "get-power-level",
8252b88294d2a7 Nathan Lynch 2023-02-10 123 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 124 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 125 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 126 },
8252b88294d2a7 Nathan Lynch 2023-02-10 127 },
8252b88294d2a7 Nathan Lynch 2023-02-10 128 [RTAS_FNIDX__GET_SENSOR_STATE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 129 .name = "get-sensor-state",
8252b88294d2a7 Nathan Lynch 2023-02-10 130 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 131 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 132 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 133 },
8252b88294d2a7 Nathan Lynch 2023-02-10 134 },
8252b88294d2a7 Nathan Lynch 2023-02-10 135 [RTAS_FNIDX__GET_TERM_CHAR] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 136 .name = "get-term-char",
8252b88294d2a7 Nathan Lynch 2023-02-10 137 },
8252b88294d2a7 Nathan Lynch 2023-02-10 138 [RTAS_FNIDX__GET_TIME_OF_DAY] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 139 .name = "get-time-of-day",
8252b88294d2a7 Nathan Lynch 2023-02-10 140 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 141 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 142 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 143 },
8252b88294d2a7 Nathan Lynch 2023-02-10 144 },
8252b88294d2a7 Nathan Lynch 2023-02-10 145 [RTAS_FNIDX__IBM_ACTIVATE_FIRMWARE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 146 .name = "ibm,activate-firmware",
8252b88294d2a7 Nathan Lynch 2023-02-10 147 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 148 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 149 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 150 },
adf7a019e5f826 Nathan Lynch 2023-12-12 151 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 152 * PAPR+ as of v2.13 doesn't explicitly impose any
adf7a019e5f826 Nathan Lynch 2023-12-12 153 * restriction, but this typically requires multiple
adf7a019e5f826 Nathan Lynch 2023-12-12 154 * calls before success, and there's no reason to
adf7a019e5f826 Nathan Lynch 2023-12-12 155 * allow sequences to interleave.
adf7a019e5f826 Nathan Lynch 2023-12-12 156 */
adf7a019e5f826 Nathan Lynch 2023-12-12 157 .lock = &rtas_ibm_activate_firmware_lock,
8252b88294d2a7 Nathan Lynch 2023-02-10 158 },
8252b88294d2a7 Nathan Lynch 2023-02-10 159 [RTAS_FNIDX__IBM_CBE_START_PTCAL] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 160 .name = "ibm,cbe-start-ptcal",
8252b88294d2a7 Nathan Lynch 2023-02-10 161 },
8252b88294d2a7 Nathan Lynch 2023-02-10 162 [RTAS_FNIDX__IBM_CBE_STOP_PTCAL] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 163 .name = "ibm,cbe-stop-ptcal",
8252b88294d2a7 Nathan Lynch 2023-02-10 164 },
8252b88294d2a7 Nathan Lynch 2023-02-10 165 [RTAS_FNIDX__IBM_CHANGE_MSI] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 166 .name = "ibm,change-msi",
8252b88294d2a7 Nathan Lynch 2023-02-10 167 },
8252b88294d2a7 Nathan Lynch 2023-02-10 168 [RTAS_FNIDX__IBM_CLOSE_ERRINJCT] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 169 .name = "ibm,close-errinjct",
8252b88294d2a7 Nathan Lynch 2023-02-10 170 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 171 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 172 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 173 },
8252b88294d2a7 Nathan Lynch 2023-02-10 174 },
8252b88294d2a7 Nathan Lynch 2023-02-10 175 [RTAS_FNIDX__IBM_CONFIGURE_BRIDGE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 176 .name = "ibm,configure-bridge",
8252b88294d2a7 Nathan Lynch 2023-02-10 177 },
8252b88294d2a7 Nathan Lynch 2023-02-10 178 [RTAS_FNIDX__IBM_CONFIGURE_CONNECTOR] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 179 .name = "ibm,configure-connector",
8252b88294d2a7 Nathan Lynch 2023-02-10 180 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 181 .buf_idx1 = 0, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 182 .buf_idx2 = 1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 183 .fixed_size = 4096,
8252b88294d2a7 Nathan Lynch 2023-02-10 184 },
8252b88294d2a7 Nathan Lynch 2023-02-10 185 },
8252b88294d2a7 Nathan Lynch 2023-02-10 186 [RTAS_FNIDX__IBM_CONFIGURE_KERNEL_DUMP] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 187 .name = "ibm,configure-kernel-dump",
8252b88294d2a7 Nathan Lynch 2023-02-10 188 },
8252b88294d2a7 Nathan Lynch 2023-02-10 189 [RTAS_FNIDX__IBM_CONFIGURE_PE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 190 .name = "ibm,configure-pe",
8252b88294d2a7 Nathan Lynch 2023-02-10 191 },
8252b88294d2a7 Nathan Lynch 2023-02-10 192 [RTAS_FNIDX__IBM_CREATE_PE_DMA_WINDOW] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 193 .name = "ibm,create-pe-dma-window",
8252b88294d2a7 Nathan Lynch 2023-02-10 194 },
8252b88294d2a7 Nathan Lynch 2023-02-10 195 [RTAS_FNIDX__IBM_DISPLAY_MESSAGE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 196 .name = "ibm,display-message",
8252b88294d2a7 Nathan Lynch 2023-02-10 197 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 198 .buf_idx1 = 0, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 199 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 200 },
8252b88294d2a7 Nathan Lynch 2023-02-10 201 },
8252b88294d2a7 Nathan Lynch 2023-02-10 202 [RTAS_FNIDX__IBM_ERRINJCT] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 203 .name = "ibm,errinjct",
8252b88294d2a7 Nathan Lynch 2023-02-10 204 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 205 .buf_idx1 = 2, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 206 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 207 .fixed_size = 1024,
8252b88294d2a7 Nathan Lynch 2023-02-10 208 },
8252b88294d2a7 Nathan Lynch 2023-02-10 209 },
8252b88294d2a7 Nathan Lynch 2023-02-10 210 [RTAS_FNIDX__IBM_EXTI2C] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 211 .name = "ibm,exti2c",
8252b88294d2a7 Nathan Lynch 2023-02-10 212 },
8252b88294d2a7 Nathan Lynch 2023-02-10 213 [RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 214 .name = "ibm,get-config-addr-info",
8252b88294d2a7 Nathan Lynch 2023-02-10 215 },
8252b88294d2a7 Nathan Lynch 2023-02-10 216 [RTAS_FNIDX__IBM_GET_CONFIG_ADDR_INFO2] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 217 .name = "ibm,get-config-addr-info2",
8252b88294d2a7 Nathan Lynch 2023-02-10 218 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 219 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 220 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 221 },
8252b88294d2a7 Nathan Lynch 2023-02-10 222 },
8252b88294d2a7 Nathan Lynch 2023-02-10 223 [RTAS_FNIDX__IBM_GET_DYNAMIC_SENSOR_STATE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 224 .name = "ibm,get-dynamic-sensor-state",
8252b88294d2a7 Nathan Lynch 2023-02-10 225 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 226 .buf_idx1 = 1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 227 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 228 },
adf7a019e5f826 Nathan Lynch 2023-12-12 229 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 230 * PAPR+ v2.13 R1–7.3.19–3 is explicit that the OS
adf7a019e5f826 Nathan Lynch 2023-12-12 231 * must not call ibm,get-dynamic-sensor-state with
adf7a019e5f826 Nathan Lynch 2023-12-12 232 * different inputs until a non-retry status has been
adf7a019e5f826 Nathan Lynch 2023-12-12 233 * returned.
adf7a019e5f826 Nathan Lynch 2023-12-12 234 */
adf7a019e5f826 Nathan Lynch 2023-12-12 235 .lock = &rtas_ibm_get_dynamic_sensor_state_lock,
8252b88294d2a7 Nathan Lynch 2023-02-10 236 },
8252b88294d2a7 Nathan Lynch 2023-02-10 237 [RTAS_FNIDX__IBM_GET_INDICES] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 238 .name = "ibm,get-indices",
8252b88294d2a7 Nathan Lynch 2023-02-10 239 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 240 .buf_idx1 = 2, .size_idx1 = 3,
8252b88294d2a7 Nathan Lynch 2023-02-10 241 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 242 },
adf7a019e5f826 Nathan Lynch 2023-12-12 243 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 244 * PAPR+ v2.13 R1–7.3.17–2 says that the OS must not
adf7a019e5f826 Nathan Lynch 2023-12-12 245 * interleave ibm,get-indices call sequences with
adf7a019e5f826 Nathan Lynch 2023-12-12 246 * different inputs.
adf7a019e5f826 Nathan Lynch 2023-12-12 247 */
adf7a019e5f826 Nathan Lynch 2023-12-12 248 .lock = &rtas_ibm_get_indices_lock,
8252b88294d2a7 Nathan Lynch 2023-02-10 249 },
8252b88294d2a7 Nathan Lynch 2023-02-10 250 [RTAS_FNIDX__IBM_GET_RIO_TOPOLOGY] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 251 .name = "ibm,get-rio-topology",
8252b88294d2a7 Nathan Lynch 2023-02-10 252 },
8252b88294d2a7 Nathan Lynch 2023-02-10 253 [RTAS_FNIDX__IBM_GET_SYSTEM_PARAMETER] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 254 .name = "ibm,get-system-parameter",
8252b88294d2a7 Nathan Lynch 2023-02-10 255 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 256 .buf_idx1 = 1, .size_idx1 = 2,
8252b88294d2a7 Nathan Lynch 2023-02-10 257 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 258 },
8252b88294d2a7 Nathan Lynch 2023-02-10 259 },
8252b88294d2a7 Nathan Lynch 2023-02-10 260 [RTAS_FNIDX__IBM_GET_VPD] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 261 .name = "ibm,get-vpd",
8252b88294d2a7 Nathan Lynch 2023-02-10 262 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 263 .buf_idx1 = 0, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 264 .buf_idx2 = 1, .size_idx2 = 2,
8252b88294d2a7 Nathan Lynch 2023-02-10 265 },
adf7a019e5f826 Nathan Lynch 2023-12-12 266 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 267 * PAPR+ v2.13 R1–7.3.20–4 indicates that sequences
adf7a019e5f826 Nathan Lynch 2023-12-12 268 * should not be allowed to interleave.
adf7a019e5f826 Nathan Lynch 2023-12-12 269 */
adf7a019e5f826 Nathan Lynch 2023-12-12 270 .lock = &rtas_ibm_get_vpd_lock,
8252b88294d2a7 Nathan Lynch 2023-02-10 271 },
8252b88294d2a7 Nathan Lynch 2023-02-10 272 [RTAS_FNIDX__IBM_GET_XIVE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 273 .name = "ibm,get-xive",
8252b88294d2a7 Nathan Lynch 2023-02-10 274 },
8252b88294d2a7 Nathan Lynch 2023-02-10 275 [RTAS_FNIDX__IBM_INT_OFF] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 276 .name = "ibm,int-off",
8252b88294d2a7 Nathan Lynch 2023-02-10 277 },
8252b88294d2a7 Nathan Lynch 2023-02-10 278 [RTAS_FNIDX__IBM_INT_ON] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 279 .name = "ibm,int-on",
8252b88294d2a7 Nathan Lynch 2023-02-10 280 },
8252b88294d2a7 Nathan Lynch 2023-02-10 281 [RTAS_FNIDX__IBM_IO_QUIESCE_ACK] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 282 .name = "ibm,io-quiesce-ack",
8252b88294d2a7 Nathan Lynch 2023-02-10 283 },
8252b88294d2a7 Nathan Lynch 2023-02-10 284 [RTAS_FNIDX__IBM_LPAR_PERFTOOLS] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 285 .name = "ibm,lpar-perftools",
8252b88294d2a7 Nathan Lynch 2023-02-10 286 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 287 .buf_idx1 = 2, .size_idx1 = 3,
8252b88294d2a7 Nathan Lynch 2023-02-10 288 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 289 },
adf7a019e5f826 Nathan Lynch 2023-12-12 290 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 291 * PAPR+ v2.13 R1–7.3.26–6 says the OS should allow
adf7a019e5f826 Nathan Lynch 2023-12-12 292 * only one call sequence in progress at a time.
adf7a019e5f826 Nathan Lynch 2023-12-12 293 */
adf7a019e5f826 Nathan Lynch 2023-12-12 294 .lock = &rtas_ibm_lpar_perftools_lock,
8252b88294d2a7 Nathan Lynch 2023-02-10 295 },
8252b88294d2a7 Nathan Lynch 2023-02-10 296 [RTAS_FNIDX__IBM_MANAGE_FLASH_IMAGE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 297 .name = "ibm,manage-flash-image",
8252b88294d2a7 Nathan Lynch 2023-02-10 298 },
8252b88294d2a7 Nathan Lynch 2023-02-10 299 [RTAS_FNIDX__IBM_MANAGE_STORAGE_PRESERVATION] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 300 .name = "ibm,manage-storage-preservation",
8252b88294d2a7 Nathan Lynch 2023-02-10 301 },
8252b88294d2a7 Nathan Lynch 2023-02-10 302 [RTAS_FNIDX__IBM_NMI_INTERLOCK] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 303 .name = "ibm,nmi-interlock",
8252b88294d2a7 Nathan Lynch 2023-02-10 304 },
8252b88294d2a7 Nathan Lynch 2023-02-10 305 [RTAS_FNIDX__IBM_NMI_REGISTER] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 306 .name = "ibm,nmi-register",
8252b88294d2a7 Nathan Lynch 2023-02-10 307 },
8252b88294d2a7 Nathan Lynch 2023-02-10 308 [RTAS_FNIDX__IBM_OPEN_ERRINJCT] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 309 .name = "ibm,open-errinjct",
8252b88294d2a7 Nathan Lynch 2023-02-10 310 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 311 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 312 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 313 },
8252b88294d2a7 Nathan Lynch 2023-02-10 314 },
8252b88294d2a7 Nathan Lynch 2023-02-10 315 [RTAS_FNIDX__IBM_OPEN_SRIOV_ALLOW_UNFREEZE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 316 .name = "ibm,open-sriov-allow-unfreeze",
8252b88294d2a7 Nathan Lynch 2023-02-10 317 },
8252b88294d2a7 Nathan Lynch 2023-02-10 318 [RTAS_FNIDX__IBM_OPEN_SRIOV_MAP_PE_NUMBER] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 319 .name = "ibm,open-sriov-map-pe-number",
8252b88294d2a7 Nathan Lynch 2023-02-10 320 },
8252b88294d2a7 Nathan Lynch 2023-02-10 321 [RTAS_FNIDX__IBM_OS_TERM] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 322 .name = "ibm,os-term",
8252b88294d2a7 Nathan Lynch 2023-02-10 323 },
8252b88294d2a7 Nathan Lynch 2023-02-10 324 [RTAS_FNIDX__IBM_PARTNER_CONTROL] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 325 .name = "ibm,partner-control",
8252b88294d2a7 Nathan Lynch 2023-02-10 326 },
8252b88294d2a7 Nathan Lynch 2023-02-10 327 [RTAS_FNIDX__IBM_PHYSICAL_ATTESTATION] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 328 .name = "ibm,physical-attestation",
8252b88294d2a7 Nathan Lynch 2023-02-10 329 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 330 .buf_idx1 = 0, .size_idx1 = 1,
8252b88294d2a7 Nathan Lynch 2023-02-10 331 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 332 },
adf7a019e5f826 Nathan Lynch 2023-12-12 333 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 334 * This follows a sequence-based pattern similar to
adf7a019e5f826 Nathan Lynch 2023-12-12 335 * ibm,get-vpd et al. Since PAPR+ restricts
adf7a019e5f826 Nathan Lynch 2023-12-12 336 * interleaving call sequences for other functions of
adf7a019e5f826 Nathan Lynch 2023-12-12 337 * this style, assume the restriction applies here,
adf7a019e5f826 Nathan Lynch 2023-12-12 338 * even though it's not explicit in the spec.
adf7a019e5f826 Nathan Lynch 2023-12-12 339 */
adf7a019e5f826 Nathan Lynch 2023-12-12 340 .lock = &rtas_ibm_physical_attestation_lock,
8252b88294d2a7 Nathan Lynch 2023-02-10 341 },
8252b88294d2a7 Nathan Lynch 2023-02-10 342 [RTAS_FNIDX__IBM_PLATFORM_DUMP] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 343 .name = "ibm,platform-dump",
8252b88294d2a7 Nathan Lynch 2023-02-10 344 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 345 .buf_idx1 = 4, .size_idx1 = 5,
8252b88294d2a7 Nathan Lynch 2023-02-10 346 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 347 },
adf7a019e5f826 Nathan Lynch 2023-12-12 348 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 349 * PAPR+ v2.13 7.3.3.4.1 indicates that concurrent
adf7a019e5f826 Nathan Lynch 2023-12-12 350 * sequences of ibm,platform-dump are allowed if they
adf7a019e5f826 Nathan Lynch 2023-12-12 351 * are operating on different dump tags. So leave the
adf7a019e5f826 Nathan Lynch 2023-12-12 352 * lock pointer unset for now. This may need
adf7a019e5f826 Nathan Lynch 2023-12-12 353 * reconsideration if kernel-internal users appear.
adf7a019e5f826 Nathan Lynch 2023-12-12 354 */
8252b88294d2a7 Nathan Lynch 2023-02-10 355 },
8252b88294d2a7 Nathan Lynch 2023-02-10 356 [RTAS_FNIDX__IBM_POWER_OFF_UPS] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 357 .name = "ibm,power-off-ups",
8252b88294d2a7 Nathan Lynch 2023-02-10 358 },
8252b88294d2a7 Nathan Lynch 2023-02-10 359 [RTAS_FNIDX__IBM_QUERY_INTERRUPT_SOURCE_NUMBER] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 360 .name = "ibm,query-interrupt-source-number",
8252b88294d2a7 Nathan Lynch 2023-02-10 361 },
8252b88294d2a7 Nathan Lynch 2023-02-10 362 [RTAS_FNIDX__IBM_QUERY_PE_DMA_WINDOW] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 363 .name = "ibm,query-pe-dma-window",
8252b88294d2a7 Nathan Lynch 2023-02-10 364 },
8252b88294d2a7 Nathan Lynch 2023-02-10 365 [RTAS_FNIDX__IBM_READ_PCI_CONFIG] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 366 .name = "ibm,read-pci-config",
8252b88294d2a7 Nathan Lynch 2023-02-10 367 },
8252b88294d2a7 Nathan Lynch 2023-02-10 368 [RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 369 .name = "ibm,read-slot-reset-state",
8252b88294d2a7 Nathan Lynch 2023-02-10 370 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 371 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 372 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 373 },
8252b88294d2a7 Nathan Lynch 2023-02-10 374 },
8252b88294d2a7 Nathan Lynch 2023-02-10 375 [RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 376 .name = "ibm,read-slot-reset-state2",
8252b88294d2a7 Nathan Lynch 2023-02-10 377 },
e143d65baaf23c Haren Myneni 2025-08-12 @378 [RTAS_FNIDX__IBM_RECEIVE_HVPIPE_MSG] {
e143d65baaf23c Haren Myneni 2025-08-12 379 .name = "ibm,receive-hvpipe-msg",
e143d65baaf23c Haren Myneni 2025-08-12 380 .filter = &(const struct rtas_filter) {
e143d65baaf23c Haren Myneni 2025-08-12 381 .buf_idx1 = 0, .size_idx1 = 1,
e143d65baaf23c Haren Myneni 2025-08-12 382 .buf_idx2 = -1, .size_idx2 = -1,
e143d65baaf23c Haren Myneni 2025-08-12 383 },
e143d65baaf23c Haren Myneni 2025-08-12 384 /*
e143d65baaf23c Haren Myneni 2025-08-12 385 * PAPR+ v2.13 R1–7.3.32.1
e143d65baaf23c Haren Myneni 2025-08-12 386 */
e143d65baaf23c Haren Myneni 2025-08-12 387 .lock = &rtas_ibm_receive_hvpipe_msg_lock,
e143d65baaf23c Haren Myneni 2025-08-12 388 },
8252b88294d2a7 Nathan Lynch 2023-02-10 389 [RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 390 .name = "ibm,remove-pe-dma-window",
8252b88294d2a7 Nathan Lynch 2023-02-10 391 },
fad87dbd48156a Nathan Lynch 2024-02-22 392 [RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW] = {
fad87dbd48156a Nathan Lynch 2024-02-22 393 /*
fad87dbd48156a Nathan Lynch 2024-02-22 394 * Note: PAPR+ v2.13 7.3.31.4.1 spells this as
fad87dbd48156a Nathan Lynch 2024-02-22 395 * "ibm,reset-pe-dma-windows" (plural), but RTAS
fad87dbd48156a Nathan Lynch 2024-02-22 396 * implementations use the singular form in practice.
fad87dbd48156a Nathan Lynch 2024-02-22 397 */
fad87dbd48156a Nathan Lynch 2024-02-22 398 .name = "ibm,reset-pe-dma-window",
8252b88294d2a7 Nathan Lynch 2023-02-10 399 },
8252b88294d2a7 Nathan Lynch 2023-02-10 400 [RTAS_FNIDX__IBM_SCAN_LOG_DUMP] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 401 .name = "ibm,scan-log-dump",
8252b88294d2a7 Nathan Lynch 2023-02-10 402 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 403 .buf_idx1 = 0, .size_idx1 = 1,
8252b88294d2a7 Nathan Lynch 2023-02-10 404 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 405 },
8252b88294d2a7 Nathan Lynch 2023-02-10 406 },
e143d65baaf23c Haren Myneni 2025-08-12 407 [RTAS_FNIDX__IBM_SEND_HVPIPE_MSG] {
e143d65baaf23c Haren Myneni 2025-08-12 408 .name = "ibm,send-hvpipe-msg",
e143d65baaf23c Haren Myneni 2025-08-12 409 .filter = &(const struct rtas_filter) {
e143d65baaf23c Haren Myneni 2025-08-12 410 .buf_idx1 = 1, .size_idx1 = -1,
e143d65baaf23c Haren Myneni 2025-08-12 411 .buf_idx2 = -1, .size_idx2 = -1,
e143d65baaf23c Haren Myneni 2025-08-12 412 },
e143d65baaf23c Haren Myneni 2025-08-12 413 /*
e143d65baaf23c Haren Myneni 2025-08-12 414 * PAPR+ v2.13 R1–7.3.32.2
e143d65baaf23c Haren Myneni 2025-08-12 415 */
e143d65baaf23c Haren Myneni 2025-08-12 416 .lock = &rtas_ibm_send_hvpipe_msg_lock,
e143d65baaf23c Haren Myneni 2025-08-12 417 },
8252b88294d2a7 Nathan Lynch 2023-02-10 418 [RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 419 .name = "ibm,set-dynamic-indicator",
8252b88294d2a7 Nathan Lynch 2023-02-10 420 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 421 .buf_idx1 = 2, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 422 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 423 },
adf7a019e5f826 Nathan Lynch 2023-12-12 424 /*
adf7a019e5f826 Nathan Lynch 2023-12-12 425 * PAPR+ v2.13 R1–7.3.18–3 says the OS must not call
adf7a019e5f826 Nathan Lynch 2023-12-12 426 * this function with different inputs until a
adf7a019e5f826 Nathan Lynch 2023-12-12 427 * non-retry status has been returned.
adf7a019e5f826 Nathan Lynch 2023-12-12 428 */
adf7a019e5f826 Nathan Lynch 2023-12-12 429 .lock = &rtas_ibm_set_dynamic_indicator_lock,
8252b88294d2a7 Nathan Lynch 2023-02-10 430 },
8252b88294d2a7 Nathan Lynch 2023-02-10 431 [RTAS_FNIDX__IBM_SET_EEH_OPTION] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 432 .name = "ibm,set-eeh-option",
8252b88294d2a7 Nathan Lynch 2023-02-10 433 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 434 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 435 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 436 },
8252b88294d2a7 Nathan Lynch 2023-02-10 437 },
8252b88294d2a7 Nathan Lynch 2023-02-10 438 [RTAS_FNIDX__IBM_SET_SLOT_RESET] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 439 .name = "ibm,set-slot-reset",
8252b88294d2a7 Nathan Lynch 2023-02-10 440 },
8252b88294d2a7 Nathan Lynch 2023-02-10 441 [RTAS_FNIDX__IBM_SET_SYSTEM_PARAMETER] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 442 .name = "ibm,set-system-parameter",
8252b88294d2a7 Nathan Lynch 2023-02-10 443 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 444 .buf_idx1 = 1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 445 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 446 },
8252b88294d2a7 Nathan Lynch 2023-02-10 447 },
8252b88294d2a7 Nathan Lynch 2023-02-10 448 [RTAS_FNIDX__IBM_SET_XIVE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 449 .name = "ibm,set-xive",
8252b88294d2a7 Nathan Lynch 2023-02-10 450 },
8252b88294d2a7 Nathan Lynch 2023-02-10 451 [RTAS_FNIDX__IBM_SLOT_ERROR_DETAIL] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 452 .name = "ibm,slot-error-detail",
8252b88294d2a7 Nathan Lynch 2023-02-10 453 },
8252b88294d2a7 Nathan Lynch 2023-02-10 454 [RTAS_FNIDX__IBM_SUSPEND_ME] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 455 .name = "ibm,suspend-me",
8252b88294d2a7 Nathan Lynch 2023-02-10 456 .banned_for_syscall_on_le = true,
8252b88294d2a7 Nathan Lynch 2023-02-10 457 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 458 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 459 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 460 },
8252b88294d2a7 Nathan Lynch 2023-02-10 461 },
8252b88294d2a7 Nathan Lynch 2023-02-10 462 [RTAS_FNIDX__IBM_TUNE_DMA_PARMS] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 463 .name = "ibm,tune-dma-parms",
8252b88294d2a7 Nathan Lynch 2023-02-10 464 },
8252b88294d2a7 Nathan Lynch 2023-02-10 465 [RTAS_FNIDX__IBM_UPDATE_FLASH_64_AND_REBOOT] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 466 .name = "ibm,update-flash-64-and-reboot",
8252b88294d2a7 Nathan Lynch 2023-02-10 467 },
8252b88294d2a7 Nathan Lynch 2023-02-10 468 [RTAS_FNIDX__IBM_UPDATE_NODES] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 469 .name = "ibm,update-nodes",
8252b88294d2a7 Nathan Lynch 2023-02-10 470 .banned_for_syscall_on_le = true,
8252b88294d2a7 Nathan Lynch 2023-02-10 471 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 472 .buf_idx1 = 0, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 473 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 474 .fixed_size = 4096,
8252b88294d2a7 Nathan Lynch 2023-02-10 475 },
8252b88294d2a7 Nathan Lynch 2023-02-10 476 },
8252b88294d2a7 Nathan Lynch 2023-02-10 477 [RTAS_FNIDX__IBM_UPDATE_PROPERTIES] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 478 .name = "ibm,update-properties",
8252b88294d2a7 Nathan Lynch 2023-02-10 479 .banned_for_syscall_on_le = true,
8252b88294d2a7 Nathan Lynch 2023-02-10 480 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 481 .buf_idx1 = 0, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 482 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 483 .fixed_size = 4096,
8252b88294d2a7 Nathan Lynch 2023-02-10 484 },
8252b88294d2a7 Nathan Lynch 2023-02-10 485 },
8252b88294d2a7 Nathan Lynch 2023-02-10 486 [RTAS_FNIDX__IBM_VALIDATE_FLASH_IMAGE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 487 .name = "ibm,validate-flash-image",
8252b88294d2a7 Nathan Lynch 2023-02-10 488 },
8252b88294d2a7 Nathan Lynch 2023-02-10 489 [RTAS_FNIDX__IBM_WRITE_PCI_CONFIG] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 490 .name = "ibm,write-pci-config",
8252b88294d2a7 Nathan Lynch 2023-02-10 491 },
8252b88294d2a7 Nathan Lynch 2023-02-10 492 [RTAS_FNIDX__NVRAM_FETCH] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 493 .name = "nvram-fetch",
8252b88294d2a7 Nathan Lynch 2023-02-10 494 },
8252b88294d2a7 Nathan Lynch 2023-02-10 495 [RTAS_FNIDX__NVRAM_STORE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 496 .name = "nvram-store",
8252b88294d2a7 Nathan Lynch 2023-02-10 497 },
8252b88294d2a7 Nathan Lynch 2023-02-10 498 [RTAS_FNIDX__POWER_OFF] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 499 .name = "power-off",
8252b88294d2a7 Nathan Lynch 2023-02-10 500 },
8252b88294d2a7 Nathan Lynch 2023-02-10 501 [RTAS_FNIDX__PUT_TERM_CHAR] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 502 .name = "put-term-char",
8252b88294d2a7 Nathan Lynch 2023-02-10 503 },
8252b88294d2a7 Nathan Lynch 2023-02-10 504 [RTAS_FNIDX__QUERY_CPU_STOPPED_STATE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 505 .name = "query-cpu-stopped-state",
8252b88294d2a7 Nathan Lynch 2023-02-10 506 },
8252b88294d2a7 Nathan Lynch 2023-02-10 507 [RTAS_FNIDX__READ_PCI_CONFIG] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 508 .name = "read-pci-config",
8252b88294d2a7 Nathan Lynch 2023-02-10 509 },
8252b88294d2a7 Nathan Lynch 2023-02-10 510 [RTAS_FNIDX__RTAS_LAST_ERROR] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 511 .name = "rtas-last-error",
8252b88294d2a7 Nathan Lynch 2023-02-10 512 },
8252b88294d2a7 Nathan Lynch 2023-02-10 513 [RTAS_FNIDX__SET_INDICATOR] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 514 .name = "set-indicator",
8252b88294d2a7 Nathan Lynch 2023-02-10 515 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 516 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 517 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 518 },
8252b88294d2a7 Nathan Lynch 2023-02-10 519 },
8252b88294d2a7 Nathan Lynch 2023-02-10 520 [RTAS_FNIDX__SET_POWER_LEVEL] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 521 .name = "set-power-level",
8252b88294d2a7 Nathan Lynch 2023-02-10 522 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 523 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 524 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 525 },
8252b88294d2a7 Nathan Lynch 2023-02-10 526 },
8252b88294d2a7 Nathan Lynch 2023-02-10 527 [RTAS_FNIDX__SET_TIME_FOR_POWER_ON] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 528 .name = "set-time-for-power-on",
8252b88294d2a7 Nathan Lynch 2023-02-10 529 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 530 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 531 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 532 },
8252b88294d2a7 Nathan Lynch 2023-02-10 533 },
8252b88294d2a7 Nathan Lynch 2023-02-10 534 [RTAS_FNIDX__SET_TIME_OF_DAY] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 535 .name = "set-time-of-day",
8252b88294d2a7 Nathan Lynch 2023-02-10 536 .filter = &(const struct rtas_filter) {
8252b88294d2a7 Nathan Lynch 2023-02-10 537 .buf_idx1 = -1, .size_idx1 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 538 .buf_idx2 = -1, .size_idx2 = -1,
8252b88294d2a7 Nathan Lynch 2023-02-10 539 },
8252b88294d2a7 Nathan Lynch 2023-02-10 540 },
8252b88294d2a7 Nathan Lynch 2023-02-10 541 [RTAS_FNIDX__START_CPU] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 542 .name = "start-cpu",
8252b88294d2a7 Nathan Lynch 2023-02-10 543 },
8252b88294d2a7 Nathan Lynch 2023-02-10 544 [RTAS_FNIDX__STOP_SELF] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 545 .name = "stop-self",
8252b88294d2a7 Nathan Lynch 2023-02-10 546 },
8252b88294d2a7 Nathan Lynch 2023-02-10 547 [RTAS_FNIDX__SYSTEM_REBOOT] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 548 .name = "system-reboot",
8252b88294d2a7 Nathan Lynch 2023-02-10 549 },
8252b88294d2a7 Nathan Lynch 2023-02-10 550 [RTAS_FNIDX__THAW_TIME_BASE] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 551 .name = "thaw-time-base",
8252b88294d2a7 Nathan Lynch 2023-02-10 552 },
8252b88294d2a7 Nathan Lynch 2023-02-10 553 [RTAS_FNIDX__WRITE_PCI_CONFIG] = {
8252b88294d2a7 Nathan Lynch 2023-02-10 554 .name = "write-pci-config",
8252b88294d2a7 Nathan Lynch 2023-02-10 555 },
8252b88294d2a7 Nathan Lynch 2023-02-10 556 };
8252b88294d2a7 Nathan Lynch 2023-02-10 557
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread* [PATCH v2 0/9] powerpc/pseries: Add hypervisor pipe (HVPIPE) suport
@ 2025-08-12 22:57 Haren Myneni
2025-08-12 22:57 ` [PATCH v2 2/9] powerpc/pseries: Define HVPIPE specific macros Haren Myneni
0 siblings, 1 reply; 2+ messages in thread
From: Haren Myneni @ 2025-08-12 22:57 UTC (permalink / raw)
To: linuxppc-dev
Cc: maddy, mpe, msuchanek, mahesh, tyreld, npiggin, bjking1, hbabu,
haren
On powerPC systems, the Hardware Management Console (HMC) is used
to create and manage logical partitions (LPAR) and both HMC and
LPARs exchange information over Ethernet which can expose security
implications. Hence the current method of communication is not
viable for secure boot configuration. To overcome these concerns,
the hypervisor introduced new inband hypervisor channel called
“Hypervisor Pipe (HVPIPE)” which allows HMC and LPARs to exchange
information with ibm,send-hvpipe-msg and ibm,receive-hvpipe-msg
RTAS calls. Sources can be any target that the hypervisor supports,
but only HMC source is supported.
ibm,send-hvpipe-msg RTAS: Inputs such as Source ID indicator of
which target the data is intended and the buffer list to hold the
payload, and returns the status. Each target represented by source
ID. For example, HMC1, HMC2 and etc.
ibm,receive-hvpipe-msg RTAS: Input buffer to hold the data and size
of the buffer, and returns the source ID of identifier of the target
providing the data, the bytes written in the buffer and the status.
The hypervisor defines HVPIPE with certain requirements and
constraints:
- The OS can determine HVPIPE feature availability with
“ibm,hypervisor-pipe-capable” property in the /rtas node of the
device tree.
- One pipe is assigned per partition and for all sources.
- Success return status of send HVPIPE means the payload is
delivered to source.
- Success return status of send HVPIPE as ACK to source.
- Generate HVPIPE event message interrupt if the status of pipe is
changed in the hypervisor such as payload is pending or pipe to
the specific source is closed
- Then the partition issue check exception handler to retrieve the
message which defines source ID of the pipe and its status.
- The hypervisor will not generate another HVPIPE event message
until the partition obtains the payload with recv HVPIPE RTAS.
- Supports only 4088 bytes of maximum payload right now,
This patch series adds HVPIPE support and provides interfaces to
the user space to execute ibm,send-hvpipe-msg and
ibm,receive-hvpipe-msg RTAS calls. We already have RTAS calls
execution such as ibm,get-indices, ibm,platform-dump,
ibm,get/set-system-parameter, etc to the user space and following
the similar interfaces foe send and recv HVPIPE RTAS functions.
- Create /dev/papr-hvpipe entry if HVPIPE is enabled
- devfd = open("/dev/papr-hvpipe", ..)
- fd = ioctl(fd,HVPIPE_IOC_CREATE_HANDLE, &srcID) for each source.
- size = write(fd, buf, size)
- Buffer contains papr_hvpipe_hdr and the payload and send the
payload with ibm,send-hvpipe-msg
- Return the size if the RTAS is success, otherwise return the
equivalent RTAS failure error code.
- ret = poll(fd,..)
- The user space waits for the payload from the source. OS wakes
up FD whenever receives interrupt from the hypervisor
- size = read(fd, buf, size)
- Buffer should have the space to contain papr_hvpipe_hdr and
the payload
- Each read() issue ibm,receive-hvpipe-msg and return the size
for RTAS success. Otherwise return the equivalent RTAS failure
error code.
This series consists of the following patches:
powerpc/pseries: Define papr-hvpipe ioctl
-provide HVPIPE_IOC_CREATE_HANDLE ioctl to the user space
powerpc/pseries: Define HVPIPE specific macros
– Define RTAS macros needed for ibm,send-hvpipe-msg and
ibm,receive-hvpipe-msg RTAS
powerpc/pseries: Add papr-hvpipe char driver for HVPIPE interfaces
– Add devpapr-hvpipe user space interfaces
powerpc/pseries: Send payload with ibm,send-hvpipe-msg RTAS
– Add send HVPIPE RTAS execution from user space
powerpc/pseries: Receive payload with ibm,receive-hvpipe-msg RTAS
– Add recv HVPIPE RTAS execution from user space
powerpc/pseries: Wakeup hvpipe FD when the payload is pending
– The kernel wakes up user space FD when the payload is pending
from the corresponding source
powerpc/pseries: Enable HVPIPE event message interrupt
– Enable HVPIPE interrupt and adds the handler
powerpc/pseries: Enable hvpipe with ibm,set-system-parameter RTAS
– Enable HVPIPE in the hypervisor
powerpc/pseries: HVPIPE changes to support migration
- LPM support
Changelog:
v2:
- Rebase to 6.17-rc1:
Changes in Documentation/userspace-api/ioctl/ioctl-number.rst
- Fixed build warnings for uninitialized ret variable in
papr_hvpipe_init() as reported by kernel test robot <lkp@intel.com>
- Execute migration handler only if the HVPIPE is enabled during
bootup (papr_hvpipe_work is used).
Haren Myneni (9):
powerpc/pseries: Define papr-hvpipe ioctl
powerpc/pseries: Define HVPIPE specific macros
powerpc/pseries: Add papr-hvpipe char driver for HVPIPE interfaces
powerpc/pseries: Send payload with ibm,send-hvpipe-msg RTAS
powerpc/pseries: Receive payload with ibm,receive-hvpipe-msg RTAS
powerpc/pseries: Wakeup hvpipe FD when the payload is pending
powerpc/pseries: Enable HVPIPE event message interrupt
powerpc/pseries: Enable hvpipe with ibm,set-system-parameter RTAS
powerpc/pseries: HVPIPE changes to support migration
.../userspace-api/ioctl/ioctl-number.rst | 2 +
arch/powerpc/include/asm/papr-sysparm.h | 1 +
arch/powerpc/include/asm/rtas.h | 9 +
arch/powerpc/include/uapi/asm/papr-hvpipe.h | 33 +
arch/powerpc/kernel/rtas.c | 24 +
arch/powerpc/kernel/rtasd.c | 2 +
arch/powerpc/platforms/pseries/Makefile | 1 +
arch/powerpc/platforms/pseries/mobility.c | 3 +
arch/powerpc/platforms/pseries/papr-hvpipe.c | 808 ++++++++++++++++++
arch/powerpc/platforms/pseries/papr-hvpipe.h | 42 +
10 files changed, 925 insertions(+)
create mode 100644 arch/powerpc/include/uapi/asm/papr-hvpipe.h
create mode 100644 arch/powerpc/platforms/pseries/papr-hvpipe.c
create mode 100644 arch/powerpc/platforms/pseries/papr-hvpipe.h
--
2.43.5
^ permalink raw reply [flat|nested] 2+ messages in thread* [PATCH v2 2/9] powerpc/pseries: Define HVPIPE specific macros
2025-08-12 22:57 [PATCH v2 0/9] powerpc/pseries: Add hypervisor pipe (HVPIPE) suport Haren Myneni
@ 2025-08-12 22:57 ` Haren Myneni
0 siblings, 0 replies; 2+ messages in thread
From: Haren Myneni @ 2025-08-12 22:57 UTC (permalink / raw)
To: linuxppc-dev
Cc: maddy, mpe, msuchanek, mahesh, tyreld, npiggin, bjking1, hbabu,
haren
Define HVPIPE specific macros which are needed to support
ibm,send-hvpipe-msg and ibm,receive-hvpipe-msg RTAS calls
and used to handle HVPIPE message events.
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
---
arch/powerpc/include/asm/rtas.h | 9 +++++++++
arch/powerpc/kernel/rtas.c | 24 ++++++++++++++++++++++++
arch/powerpc/kernel/rtasd.c | 2 ++
3 files changed, 35 insertions(+)
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h
index 75fa0293c508..d046bbd5017d 100644
--- a/arch/powerpc/include/asm/rtas.h
+++ b/arch/powerpc/include/asm/rtas.h
@@ -68,9 +68,11 @@ enum rtas_function_index {
RTAS_FNIDX__IBM_READ_PCI_CONFIG,
RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE,
RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2,
+ RTAS_FNIDX__IBM_RECEIVE_HVPIPE_MSG,
RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW,
RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW,
RTAS_FNIDX__IBM_SCAN_LOG_DUMP,
+ RTAS_FNIDX__IBM_SEND_HVPIPE_MSG,
RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR,
RTAS_FNIDX__IBM_SET_EEH_OPTION,
RTAS_FNIDX__IBM_SET_SLOT_RESET,
@@ -163,9 +165,11 @@ typedef struct {
#define RTAS_FN_IBM_READ_PCI_CONFIG rtas_fn_handle(RTAS_FNIDX__IBM_READ_PCI_CONFIG)
#define RTAS_FN_IBM_READ_SLOT_RESET_STATE rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE)
#define RTAS_FN_IBM_READ_SLOT_RESET_STATE2 rtas_fn_handle(RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2)
+#define RTAS_FN_IBM_RECEIVE_HVPIPE_MSG rtas_fn_handle(RTAS_FNIDX__IBM_RECEIVE_HVPIPE_MSG)
#define RTAS_FN_IBM_REMOVE_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW)
#define RTAS_FN_IBM_RESET_PE_DMA_WINDOW rtas_fn_handle(RTAS_FNIDX__IBM_RESET_PE_DMA_WINDOW)
#define RTAS_FN_IBM_SCAN_LOG_DUMP rtas_fn_handle(RTAS_FNIDX__IBM_SCAN_LOG_DUMP)
+#define RTAS_FN_IBM_SEND_HVPIPE_MSG rtas_fn_handle(RTAS_FNIDX__IBM_SEND_HVPIPE_MSG)
#define RTAS_FN_IBM_SET_DYNAMIC_INDICATOR rtas_fn_handle(RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR)
#define RTAS_FN_IBM_SET_EEH_OPTION rtas_fn_handle(RTAS_FNIDX__IBM_SET_EEH_OPTION)
#define RTAS_FN_IBM_SET_SLOT_RESET rtas_fn_handle(RTAS_FNIDX__IBM_SET_SLOT_RESET)
@@ -217,6 +221,7 @@ typedef struct {
#define RTAS_HARDWARE_ERROR -1 /* Hardware or other unspecified error. */
#define RTAS_BUSY -2 /* Retry immediately. */
#define RTAS_INVALID_PARAMETER -3 /* Invalid indicator/domain/sensor etc. */
+#define RTAS_FUNC_NOT_SUPPORTED -5 /* Function not supported */
#define RTAS_UNEXPECTED_STATE_CHANGE -7 /* Seems limited to EEH and slot reset. */
#define RTAS_EXTENDED_DELAY_MIN 9900 /* Retry after delaying for ~1ms. */
#define RTAS_EXTENDED_DELAY_MAX 9905 /* Retry after delaying for ~100s. */
@@ -233,6 +238,7 @@ typedef struct {
#define RTAS_EPOW_WARNING 0x40000000 /* set bit 1 */
#define RTAS_HOTPLUG_EVENTS 0x10000000 /* set bit 3 */
#define RTAS_IO_EVENTS 0x08000000 /* set bit 4 */
+#define RTAS_HVPIPE_MSG_EVENTS 0x04000000 /* set bit 5 */
#define RTAS_EVENT_SCAN_ALL_EVENTS 0xffffffff
/* RTAS event severity */
@@ -282,6 +288,7 @@ typedef struct {
#define RTAS_TYPE_DEALLOC 0xE3
#define RTAS_TYPE_DUMP 0xE4
#define RTAS_TYPE_HOTPLUG 0xE5
+#define RTAS_TYPE_HVPIPE 0xE6
/* I don't add PowerMGM events right now, this is a different topic */
#define RTAS_TYPE_PMGM_POWER_SW_ON 0x60
#define RTAS_TYPE_PMGM_POWER_SW_OFF 0x61
@@ -374,6 +381,7 @@ inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
#define PSERIES_ELOG_SECT_ID_HMC_ID (('H' << 8) | 'M')
#define PSERIES_ELOG_SECT_ID_EPOW (('E' << 8) | 'P')
#define PSERIES_ELOG_SECT_ID_IO_EVENT (('I' << 8) | 'E')
+#define PSERIES_ELOG_SECT_ID_HVPIPE_EVENT (('P' << 8) | 'E')
#define PSERIES_ELOG_SECT_ID_MANUFACT_INFO (('M' << 8) | 'I')
#define PSERIES_ELOG_SECT_ID_CALL_HOME (('C' << 8) | 'H')
#define PSERIES_ELOG_SECT_ID_USER_DEF (('U' << 8) | 'D')
@@ -519,6 +527,7 @@ extern struct mutex rtas_ibm_get_indices_lock;
extern struct mutex rtas_ibm_set_dynamic_indicator_lock;
extern struct mutex rtas_ibm_get_dynamic_sensor_state_lock;
extern struct mutex rtas_ibm_physical_attestation_lock;
+extern struct mutex rtas_ibm_send_hvpipe_msg_lock;
#define GLOBAL_INTERRUPT_QUEUE 9005
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index e61245c4468e..8d81c1e7a8db 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -98,6 +98,8 @@ DEFINE_MUTEX(rtas_ibm_get_vpd_lock);
DEFINE_MUTEX(rtas_ibm_get_indices_lock);
DEFINE_MUTEX(rtas_ibm_set_dynamic_indicator_lock);
DEFINE_MUTEX(rtas_ibm_get_dynamic_sensor_state_lock);
+DEFINE_MUTEX(rtas_ibm_receive_hvpipe_msg_lock);
+DEFINE_MUTEX(rtas_ibm_send_hvpipe_msg_lock);
static struct rtas_function rtas_function_table[] __ro_after_init = {
[RTAS_FNIDX__CHECK_EXCEPTION] = {
@@ -373,6 +375,17 @@ static struct rtas_function rtas_function_table[] __ro_after_init = {
[RTAS_FNIDX__IBM_READ_SLOT_RESET_STATE2] = {
.name = "ibm,read-slot-reset-state2",
},
+ [RTAS_FNIDX__IBM_RECEIVE_HVPIPE_MSG] {
+ .name = "ibm,receive-hvpipe-msg",
+ .filter = &(const struct rtas_filter) {
+ .buf_idx1 = 0, .size_idx1 = 1,
+ .buf_idx2 = -1, .size_idx2 = -1,
+ },
+ /*
+ * PAPR+ v2.13 R1–7.3.32.1
+ */
+ .lock = &rtas_ibm_receive_hvpipe_msg_lock,
+ },
[RTAS_FNIDX__IBM_REMOVE_PE_DMA_WINDOW] = {
.name = "ibm,remove-pe-dma-window",
},
@@ -391,6 +404,17 @@ static struct rtas_function rtas_function_table[] __ro_after_init = {
.buf_idx2 = -1, .size_idx2 = -1,
},
},
+ [RTAS_FNIDX__IBM_SEND_HVPIPE_MSG] {
+ .name = "ibm,send-hvpipe-msg",
+ .filter = &(const struct rtas_filter) {
+ .buf_idx1 = 1, .size_idx1 = -1,
+ .buf_idx2 = -1, .size_idx2 = -1,
+ },
+ /*
+ * PAPR+ v2.13 R1–7.3.32.2
+ */
+ .lock = &rtas_ibm_send_hvpipe_msg_lock,
+ },
[RTAS_FNIDX__IBM_SET_DYNAMIC_INDICATOR] = {
.name = "ibm,set-dynamic-indicator",
.filter = &(const struct rtas_filter) {
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 9bba469239fc..6336ec9aedd0 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -89,6 +89,8 @@ static char *rtas_event_type(int type)
return "Platform Resource Reassignment Event";
case RTAS_TYPE_HOTPLUG:
return "Hotplug Event";
+ case RTAS_TYPE_HVPIPE:
+ return "Hypervisor Pipe Notification event";
}
return rtas_type[0];
--
2.43.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
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2025-08-12 22:57 ` [PATCH v2 2/9] powerpc/pseries: Define HVPIPE specific macros Haren Myneni
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