arch/powerpc/include/asm/hvcall.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_POWERPC_HVCALL_H
   3 #define _ASM_POWERPC_HVCALL_H
   4 #ifdef __KERNEL__
   5
   6 #define HVSC                    .long 0x44000022
   7
   8 #define H_SUCCESS       0
   9 #define H_BUSY          1       /* Hardware busy -- retry later */
  10 #define H_CLOSED        2       /* Resource closed */
  11 #define H_NOT_AVAILABLE 3
  12 #define H_CONSTRAINED   4       /* Resource request constrained to max allowed */
  13 #define H_PARTIAL       5
  14 #define H_IN_PROGRESS   14      /* Kind of like busy */
  15 #define H_PAGE_REGISTERED 15
  16 #define H_PARTIAL_STORE   16
  17 #define H_PENDING       17      /* returned from H_POLL_PENDING */
  18 #define H_CONTINUE      18      /* Returned from H_Join on success */
  19 #define H_LONG_BUSY_START_RANGE         9900  /* Start of long busy range */
  20 #define H_LONG_BUSY_ORDER_1_MSEC        9900  /* Long busy, hint that 1msec \
  21                                                  is a good time to retry */
  22 #define H_LONG_BUSY_ORDER_10_MSEC       9901  /* Long busy, hint that 10msec \
  23                                                  is a good time to retry */
  24 #define H_LONG_BUSY_ORDER_100_MSEC      9902  /* Long busy, hint that 100msec \
  25                                                  is a good time to retry */
  26 #define H_LONG_BUSY_ORDER_1_SEC         9903  /* Long busy, hint that 1sec \
  27                                                  is a good time to retry */
  28 #define H_LONG_BUSY_ORDER_10_SEC        9904  /* Long busy, hint that 10sec \
  29                                                  is a good time to retry */
  30 #define H_LONG_BUSY_ORDER_100_SEC       9905  /* Long busy, hint that 100sec \
  31                                                  is a good time to retry */
  32 #define H_LONG_BUSY_END_RANGE           9905  /* End of long busy range */
  33
  34 /* Internal value used in book3s_hv kvm support; not returned to guests */
  35 #define H_TOO_HARD      9999
  36
  37 #define H_HARDWARE      -1      /* Hardware error */
  38 #define H_FUNCTION      -2      /* Function not supported */
  39 #define H_PRIVILEGE     -3      /* Caller not privileged */
  40 #define H_PARAMETER     -4      /* Parameter invalid, out-of-range or conflicting */
  41 #define H_BAD_MODE      -5      /* Illegal msr value */
  42 #define H_PTEG_FULL     -6      /* PTEG is full */
  43 #define H_NOT_FOUND     -7      /* PTE was not found" */
  44 #define H_RESERVED_DABR -8      /* DABR address is reserved by the hypervisor on this processor" */
  45 #define H_NO_MEM        -9
  46 #define H_AUTHORITY     -10
  47 #define H_PERMISSION    -11
  48 #define H_DROPPED       -12
  49 #define H_SOURCE_PARM   -13
  50 #define H_DEST_PARM     -14
  51 #define H_REMOTE_PARM   -15
  52 #define H_RESOURCE      -16
  53 #define H_ADAPTER_PARM  -17
  54 #define H_RH_PARM       -18
  55 #define H_RCQ_PARM      -19
  56 #define H_SCQ_PARM      -20
  57 #define H_EQ_PARM       -21
  58 #define H_RT_PARM       -22
  59 #define H_ST_PARM       -23
  60 #define H_SIGT_PARM     -24
  61 #define H_TOKEN_PARM    -25
  62 #define H_MLENGTH_PARM  -27
  63 #define H_MEM_PARM      -28
  64 #define H_MEM_ACCESS_PARM -29
  65 #define H_ATTR_PARM     -30
  66 #define H_PORT_PARM     -31
  67 #define H_MCG_PARM      -32
  68 #define H_VL_PARM       -33
  69 #define H_TSIZE_PARM    -34
  70 #define H_TRACE_PARM    -35
  71
  72 #define H_MASK_PARM     -37
  73 #define H_MCG_FULL      -38
  74 #define H_ALIAS_EXIST   -39
  75 #define H_P_COUNTER     -40
  76 #define H_TABLE_FULL    -41
  77 #define H_ALT_TABLE     -42
  78 #define H_MR_CONDITION  -43
  79 #define H_NOT_ENOUGH_RESOURCES -44
  80 #define H_R_STATE       -45
  81 #define H_RESCINDED     -46
  82 #define H_P2            -55
  83 #define H_P3            -56
  84 #define H_P4            -57
  85 #define H_P5            -58
  86 #define H_P6            -59
  87 #define H_P7            -60
  88 #define H_P8            -61
  89 #define H_P9            -62
  90 #define H_TOO_BIG       -64
  91 #define H_UNSUPPORTED   -67
  92 #define H_OVERLAP       -68
  93 #define H_INTERRUPT     -69
  94 #define H_BAD_DATA      -70
  95 #define H_NOT_ACTIVE    -71
  96 #define H_SG_LIST       -72
  97 #define H_OP_MODE       -73
  98 #define H_COP_HW        -74
  99 #define H_STATE         -75
 100 #define H_UNSUPPORTED_FLAG_START        -256
 101 #define H_UNSUPPORTED_FLAG_END          -511
 102 #define H_MULTI_THREADS_ACTIVE  -9005
 103 #define H_OUTSTANDING_COP_OPS   -9006
 104
 105
 106 /* Long Busy is a condition that can be returned by the firmware
 107  * when a call cannot be completed now, but the identical call
 108  * should be retried later.  This prevents calls blocking in the
 109  * firmware for long periods of time.  Annoyingly the firmware can return
 110  * a range of return codes, hinting at how long we should wait before
 111  * retrying.  If you don't care for the hint, the macro below is a good
 112  * way to check for the long_busy return codes
 113  */
 114 #define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
 115                              && (x <= H_LONG_BUSY_END_RANGE))
 116
 117 /* Flags */
 118 #define H_LARGE_PAGE            (1UL<<(63-16))
 119 #define H_EXACT                 (1UL<<(63-24))  /* Use exact PTE or return H_PTEG_FULL */
 120 #define H_R_XLATE               (1UL<<(63-25))  /* include a valid logical page num in the pte if the valid bit is set */
 121 #define H_READ_4                (1UL<<(63-26))  /* Return 4 PTEs */
 122 #define H_PAGE_STATE_CHANGE     (1UL<<(63-28))
 123 #define H_PAGE_UNUSED           ((1UL<<(63-29)) | (1UL<<(63-30)))
 124 #define H_PAGE_SET_UNUSED       (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
 125 #define H_PAGE_SET_LOANED       (H_PAGE_SET_UNUSED | (1UL<<(63-31)))
 126 #define H_PAGE_SET_ACTIVE       H_PAGE_STATE_CHANGE
 127 #define H_AVPN                  (1UL<<(63-32))  /* An avpn is provided as a sanity test */
 128 #define H_ANDCOND               (1UL<<(63-33))
 129 #define H_LOCAL                 (1UL<<(63-35))
 130 #define H_ICACHE_INVALIDATE     (1UL<<(63-40))  /* icbi, etc.  (ignored for IO pages) */
 131 #define H_ICACHE_SYNCHRONIZE    (1UL<<(63-41))  /* dcbst, icbi, etc (ignored for IO pages */
 132 #define H_COALESCE_CAND (1UL<<(63-42))  /* page is a good candidate for coalescing */
 133 #define H_ZERO_PAGE             (1UL<<(63-48))  /* zero the page before mapping (ignored for IO pages) */
 134 #define H_COPY_PAGE             (1UL<<(63-49))
 135 #define H_N                     (1UL<<(63-61))
 136 #define H_PP1                   (1UL<<(63-62))
 137 #define H_PP2                   (1UL<<(63-63))
 138
 139 /* Flags for H_REGISTER_VPA subfunction field */
 140 #define H_VPA_FUNC_SHIFT        (63-18) /* Bit posn of subfunction code */
 141 #define H_VPA_FUNC_MASK         7UL
 142 #define H_VPA_REG_VPA           1UL     /* Register Virtual Processor Area */
 143 #define H_VPA_REG_DTL           2UL     /* Register Dispatch Trace Log */
 144 #define H_VPA_REG_SLB           3UL     /* Register SLB shadow buffer */
 145 #define H_VPA_DEREG_VPA         5UL     /* Deregister Virtual Processor Area */
 146 #define H_VPA_DEREG_DTL         6UL     /* Deregister Dispatch Trace Log */
 147 #define H_VPA_DEREG_SLB         7UL     /* Deregister SLB shadow buffer */
 148
 149 /* VASI States */
 150 #define H_VASI_INVALID          0
 151 #define H_VASI_ENABLED          1
 152 #define H_VASI_ABORTED          2
 153 #define H_VASI_SUSPENDING       3
 154 #define H_VASI_SUSPENDED        4
 155 #define H_VASI_RESUMED          5
 156 #define H_VASI_COMPLETED        6
 157
 158 /* Each control block has to be on a 4K boundary */
 159 #define H_CB_ALIGNMENT          4096
 160
 161 /* pSeries hypervisor opcodes */
 162 #define H_REMOVE                0x04
 163 #define H_ENTER                 0x08
 164 #define H_READ                  0x0c
 165 #define H_CLEAR_MOD             0x10
 166 #define H_CLEAR_REF             0x14
 167 #define H_PROTECT               0x18
 168 #define H_GET_TCE               0x1c
 169 #define H_PUT_TCE               0x20
 170 #define H_SET_SPRG0             0x24
 171 #define H_SET_DABR              0x28
 172 #define H_PAGE_INIT             0x2c
 173 #define H_SET_ASR               0x30
 174 #define H_ASR_ON                0x34
 175 #define H_ASR_OFF               0x38
 176 #define H_LOGICAL_CI_LOAD       0x3c
 177 #define H_LOGICAL_CI_STORE      0x40
 178 #define H_LOGICAL_CACHE_LOAD    0x44
 179 #define H_LOGICAL_CACHE_STORE   0x48
 180 #define H_LOGICAL_ICBI          0x4c
 181 #define H_LOGICAL_DCBF          0x50
 182 #define H_GET_TERM_CHAR         0x54
 183 #define H_PUT_TERM_CHAR         0x58
 184 #define H_REAL_TO_LOGICAL       0x5c
 185 #define H_HYPERVISOR_DATA       0x60
 186 #define H_EOI                   0x64
 187 #define H_CPPR                  0x68
 188 #define H_IPI                   0x6c
 189 #define H_IPOLL                 0x70
 190 #define H_XIRR                  0x74
 191 #define H_PERFMON               0x7c
 192 #define H_MIGRATE_DMA           0x78
 193 #define H_REGISTER_VPA          0xDC
 194 #define H_CEDE                  0xE0
 195 #define H_CONFER                0xE4
 196 #define H_PROD                  0xE8
 197 #define H_GET_PPP               0xEC
 198 #define H_SET_PPP               0xF0
 199 #define H_PURR                  0xF4
 200 #define H_PIC                   0xF8
 201 #define H_REG_CRQ               0xFC
 202 #define H_FREE_CRQ              0x100
 203 #define H_VIO_SIGNAL            0x104
 204 #define H_SEND_CRQ              0x108
 205 #define H_COPY_RDMA             0x110
 206 #define H_REGISTER_LOGICAL_LAN  0x114
 207 #define H_FREE_LOGICAL_LAN      0x118
 208 #define H_ADD_LOGICAL_LAN_BUFFER 0x11C
 209 #define H_SEND_LOGICAL_LAN      0x120
 210 #define H_BULK_REMOVE           0x124
 211 #define H_MULTICAST_CTRL        0x130
 212 #define H_SET_XDABR             0x134
 213 #define H_STUFF_TCE             0x138
 214 #define H_PUT_TCE_INDIRECT      0x13C
 215 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
 216 #define H_VTERM_PARTNER_INFO    0x150
 217 #define H_REGISTER_VTERM        0x154
 218 #define H_FREE_VTERM            0x158
 219 #define H_RESET_EVENTS          0x15C
 220 #define H_ALLOC_RESOURCE        0x160
 221 #define H_FREE_RESOURCE         0x164
 222 #define H_MODIFY_QP             0x168
 223 #define H_QUERY_QP              0x16C
 224 #define H_REREGISTER_PMR        0x170
 225 #define H_REGISTER_SMR          0x174
 226 #define H_QUERY_MR              0x178
 227 #define H_QUERY_MW              0x17C
 228 #define H_QUERY_HCA             0x180
 229 #define H_QUERY_PORT            0x184
 230 #define H_MODIFY_PORT           0x188
 231 #define H_DEFINE_AQP1           0x18C
 232 #define H_GET_TRACE_BUFFER      0x190
 233 #define H_DEFINE_AQP0           0x194
 234 #define H_RESIZE_MR             0x198
 235 #define H_ATTACH_MCQP           0x19C
 236 #define H_DETACH_MCQP           0x1A0
 237 #define H_CREATE_RPT            0x1A4
 238 #define H_REMOVE_RPT            0x1A8
 239 #define H_REGISTER_RPAGES       0x1AC
 240 #define H_DISABLE_AND_GETC      0x1B0
 241 #define H_ERROR_DATA            0x1B4
 242 #define H_GET_HCA_INFO          0x1B8
 243 #define H_GET_PERF_COUNT        0x1BC
 244 #define H_MANAGE_TRACE          0x1C0
 245 #define H_GET_CPU_CHARACTERISTICS 0x1C8
 246 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
 247 #define H_QUERY_INT_STATE       0x1E4
 248 #define H_POLL_PENDING          0x1D8
 249 #define H_ILLAN_ATTRIBUTES      0x244
 250 #define H_MODIFY_HEA_QP         0x250
 251 #define H_QUERY_HEA_QP          0x254
 252 #define H_QUERY_HEA             0x258
 253 #define H_QUERY_HEA_PORT        0x25C
 254 #define H_MODIFY_HEA_PORT       0x260
 255 #define H_REG_BCMC              0x264
 256 #define H_DEREG_BCMC            0x268
 257 #define H_REGISTER_HEA_RPAGES   0x26C
 258 #define H_DISABLE_AND_GET_HEA   0x270
 259 #define H_GET_HEA_INFO          0x274
 260 #define H_ALLOC_HEA_RESOURCE    0x278
 261 #define H_ADD_CONN              0x284
 262 #define H_DEL_CONN              0x288
 263 #define H_JOIN                  0x298
 264 #define H_VASI_STATE            0x2A4
 265 #define H_VIOCTL                0x2A8
 266 #define H_ENABLE_CRQ            0x2B0
 267 #define H_GET_EM_PARMS          0x2B8
 268 #define H_SET_MPP               0x2D0
 269 #define H_GET_MPP               0x2D4
 270 #define H_REG_SUB_CRQ           0x2DC
 271 #define H_HOME_NODE_ASSOCIATIVITY 0x2EC
 272 #define H_FREE_SUB_CRQ          0x2E0
 273 #define H_SEND_SUB_CRQ          0x2E4
 274 #define H_SEND_SUB_CRQ_INDIRECT 0x2E8
 275 #define H_BEST_ENERGY           0x2F4
 276 #define H_XIRR_X                0x2FC
 277 #define H_RANDOM                0x300
 278 #define H_COP                   0x304
 279 #define H_GET_MPP_X             0x314
 280 #define H_SET_MODE              0x31C
 281 #define H_BLOCK_REMOVE          0x328
 282 #define H_CLEAR_HPT             0x358
 283 #define H_REQUEST_VMC           0x360
 284 #define H_RESIZE_HPT_PREPARE    0x36C
 285 #define H_RESIZE_HPT_COMMIT     0x370
 286 #define H_REGISTER_PROC_TBL     0x37C
 287 #define H_SIGNAL_SYS_RESET      0x380
 288 #define H_INT_GET_SOURCE_INFO   0x3A8
 289 #define H_INT_SET_SOURCE_CONFIG 0x3AC
 290 #define H_INT_GET_SOURCE_CONFIG 0x3B0
 291 #define H_INT_GET_QUEUE_INFO    0x3B4
 292 #define H_INT_SET_QUEUE_CONFIG  0x3B8
 293 #define H_INT_GET_QUEUE_CONFIG  0x3BC
 294 #define H_INT_SET_OS_REPORTING_LINE 0x3C0
 295 #define H_INT_GET_OS_REPORTING_LINE 0x3C4
 296 #define H_INT_ESB               0x3C8
 297 #define H_INT_SYNC              0x3CC
 298 #define H_INT_RESET             0x3D0
 299 #define H_SCM_READ_METADATA     0x3E4
 300 #define H_SCM_WRITE_METADATA    0x3E8
 301 #define H_SCM_BIND_MEM          0x3EC
 302 #define H_SCM_UNBIND_MEM        0x3F0
 303 #define H_SCM_QUERY_BLOCK_MEM_BINDING 0x3F4
 304 #define H_SCM_QUERY_LOGICAL_MEM_BINDING 0x3F8
 305 #define H_SCM_UNBIND_ALL        0x3FC
 306 #define H_SCM_HEALTH            0x400
 307 #define H_SCM_PERFORMANCE_STATS 0x418
 308 #define MAX_HCALL_OPCODE        H_SCM_PERFORMANCE_STATS
 309
 310 /* Scope args for H_SCM_UNBIND_ALL */
 311 #define H_UNBIND_SCOPE_ALL (0x1)
 312 #define H_UNBIND_SCOPE_DRC (0x2)
 313
 314 /* H_VIOCTL functions */
 315 #define H_GET_VIOA_DUMP_SIZE    0x01
 316 #define H_GET_VIOA_DUMP         0x02
 317 #define H_GET_ILLAN_NUM_VLAN_IDS 0x03
 318 #define H_GET_ILLAN_VLAN_ID_LIST 0x04
 319 #define H_GET_ILLAN_SWITCH_ID   0x05
 320 #define H_DISABLE_MIGRATION     0x06
 321 #define H_ENABLE_MIGRATION      0x07
 322 #define H_GET_PARTNER_INFO      0x08
 323 #define H_GET_PARTNER_WWPN_LIST 0x09
 324 #define H_DISABLE_ALL_VIO_INTS  0x0A
 325 #define H_DISABLE_VIO_INTERRUPT 0x0B
 326 #define H_ENABLE_VIO_INTERRUPT  0x0C
 327 #define H_GET_SESSION_TOKEN     0x19
 328 #define H_SESSION_ERR_DETECTED  0x1A
 329
 330
 331 /* Platform specific hcalls, used by KVM */
 332 #define H_RTAS                  0xf000
 333
 334 /* "Platform specific hcalls", provided by PHYP */
 335 #define H_GET_24X7_CATALOG_PAGE 0xF078
 336 #define H_GET_24X7_DATA         0xF07C
 337 #define H_GET_PERF_COUNTER_INFO 0xF080
 338
 339 /* Platform-specific hcalls used for nested HV KVM */
 340 #define H_SET_PARTITION_TABLE   0xF800
 341 #define H_ENTER_NESTED          0xF804
 342 #define H_TLB_INVALIDATE        0xF808
 343 #define H_COPY_TOFROM_GUEST     0xF80C
 344
 345 /* Flags for H_SVM_PAGE_IN */
 346 #define H_PAGE_IN_SHARED        0x1
 347
 348 /* Platform-specific hcalls used by the Ultravisor */
 349 #define H_SVM_PAGE_IN           0xEF00
 350 #define H_SVM_PAGE_OUT          0xEF04
 351 #define H_SVM_INIT_START        0xEF08
 352 #define H_SVM_INIT_DONE         0xEF0C
 353 #define H_SVM_INIT_ABORT        0xEF14
 354
 355 /* Values for 2nd argument to H_SET_MODE */
 356 #define H_SET_MODE_RESOURCE_SET_CIABR           1
 357 #define H_SET_MODE_RESOURCE_SET_DAWR            2
 358 #define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE     3
 359 #define H_SET_MODE_RESOURCE_LE                  4
 360
 361 /* Values for argument to H_SIGNAL_SYS_RESET */
 362 #define H_SIGNAL_SYS_RESET_ALL                  -1
 363 #define H_SIGNAL_SYS_RESET_ALL_OTHERS           -2
 364 /* >= 0 values are CPU number */
 365
 366 /* H_GET_CPU_CHARACTERISTICS return values */
 367 #define H_CPU_CHAR_SPEC_BAR_ORI31       (1ull << 63) // IBM bit 0
 368 #define H_CPU_CHAR_BCCTRL_SERIALISED    (1ull << 62) // IBM bit 1
 369 #define H_CPU_CHAR_L1D_FLUSH_ORI30      (1ull << 61) // IBM bit 2
 370 #define H_CPU_CHAR_L1D_FLUSH_TRIG2      (1ull << 60) // IBM bit 3
 371 #define H_CPU_CHAR_L1D_THREAD_PRIV      (1ull << 59) // IBM bit 4
 372 #define H_CPU_CHAR_BRANCH_HINTS_HONORED (1ull << 58) // IBM bit 5
 373 #define H_CPU_CHAR_THREAD_RECONFIG_CTRL (1ull << 57) // IBM bit 6
 374 #define H_CPU_CHAR_COUNT_CACHE_DISABLED (1ull << 56) // IBM bit 7
 375 #define H_CPU_CHAR_BCCTR_FLUSH_ASSIST   (1ull << 54) // IBM bit 9
 376
 377 #define H_CPU_BEHAV_FAVOUR_SECURITY     (1ull << 63) // IBM bit 0
 378 #define H_CPU_BEHAV_L1D_FLUSH_PR        (1ull << 62) // IBM bit 1
 379 #define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR   (1ull << 61) // IBM bit 2
 380 #define H_CPU_BEHAV_FLUSH_COUNT_CACHE   (1ull << 58) // IBM bit 5
 381
 382 /* Flag values used in H_REGISTER_PROC_TBL hcall */
 383 #define PROC_TABLE_OP_MASK      0x18
 384 #define PROC_TABLE_DEREG        0x10
 385 #define PROC_TABLE_NEW          0x18
 386 #define PROC_TABLE_TYPE_MASK    0x06
 387 #define PROC_TABLE_HPT_SLB      0x00
 388 #define PROC_TABLE_HPT_PT       0x02
 389 #define PROC_TABLE_RADIX        0x04
 390 #define PROC_TABLE_GTSE         0x01
 391
 392 #ifndef __ASSEMBLY__
 393 #include <linux/types.h>
 394
 395 /**
 396  * plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
 397  * @opcode: The hypervisor call to make.
 398  *
 399  * This call supports up to 7 arguments and only returns the status of
 400  * the hcall. Use this version where possible, its slightly faster than
 401  * the other plpar_hcalls.
 402  */
 403 long plpar_hcall_norets(unsigned long opcode, ...);
 404
 405 /**
 406  * plpar_hcall: - Make a pseries hypervisor call
 407  * @opcode: The hypervisor call to make.
 408  * @retbuf: Buffer to store up to 4 return arguments in.
 409  *
 410  * This call supports up to 6 arguments and 4 return arguments. Use
 411  * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
 412  *
 413  * Used for all but the craziest of phyp interfaces (see plpar_hcall9)
 414  */
 415 #define PLPAR_HCALL_BUFSIZE 4
 416 long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
 417
 418 /**
 419  * plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats
 420  * @opcode: The hypervisor call to make.
 421  * @retbuf: Buffer to store up to 4 return arguments in.
 422  *
 423  * This call supports up to 6 arguments and 4 return arguments. Use
 424  * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
 425  *
 426  * Used when phyp interface needs to be called in real mode. Similar to
 427  * plpar_hcall, but plpar_hcall_raw works in real mode and does not
 428  * calculate hypervisor call statistics.
 429  */
 430 long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);
 431
 432 /**
 433  * plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
 434  * @opcode: The hypervisor call to make.
 435  * @retbuf: Buffer to store up to 9 return arguments in.
 436  *
 437  * This call supports up to 9 arguments and 9 return arguments. Use
 438  * PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
 439  */
 440 #define PLPAR_HCALL9_BUFSIZE 9
 441 long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
 442 long plpar_hcall9_raw(unsigned long opcode, unsigned long *retbuf, ...);
 443
 444 struct hvcall_mpp_data {
 445         unsigned long entitled_mem;
 446         unsigned long mapped_mem;
 447         unsigned short group_num;
 448         unsigned short pool_num;
 449         unsigned char mem_weight;
 450         unsigned char unallocated_mem_weight;
 451         unsigned long unallocated_entitlement;  /* value in bytes */
 452         unsigned long pool_size;
 453         signed long loan_request;
 454         unsigned long backing_mem;
 455 };
 456
 457 int h_get_mpp(struct hvcall_mpp_data *);
 458
 459 struct hvcall_mpp_x_data {
 460         unsigned long coalesced_bytes;
 461         unsigned long pool_coalesced_bytes;
 462         unsigned long pool_purr_cycles;
 463         unsigned long pool_spurr_cycles;
 464         unsigned long reserved[3];
 465 };
 466
 467 int h_get_mpp_x(struct hvcall_mpp_x_data *mpp_x_data);
 468
 469 static inline unsigned int get_longbusy_msecs(int longbusy_rc)
 470 {
 471         switch (longbusy_rc) {
 472         case H_LONG_BUSY_ORDER_1_MSEC:
 473                 return 1;
 474         case H_LONG_BUSY_ORDER_10_MSEC:
 475                 return 10;
 476         case H_LONG_BUSY_ORDER_100_MSEC:
 477                 return 100;
 478         case H_LONG_BUSY_ORDER_1_SEC:
 479                 return 1000;
 480         case H_LONG_BUSY_ORDER_10_SEC:
 481                 return 10000;
 482         case H_LONG_BUSY_ORDER_100_SEC:
 483                 return 100000;
 484         default:
 485                 return 1;
 486         }
 487 }
 488
 489 struct h_cpu_char_result {
 490         u64 character;
 491         u64 behaviour;
 492 };
 493
 494 /* Register state for entering a nested guest with H_ENTER_NESTED */
 495 struct hv_guest_state {
 496         u64 version;            /* version of this structure layout */
 497         u32 lpid;
 498         u32 vcpu_token;
 499         /* These registers are hypervisor privileged (at least for writing) */
 500         u64 lpcr;
 501         u64 pcr;
 502         u64 amor;
 503         u64 dpdes;
 504         u64 hfscr;
 505         s64 tb_offset;
 506         u64 dawr0;
 507         u64 dawrx0;
 508         u64 ciabr;
 509         u64 hdec_expiry;
 510         u64 purr;
 511         u64 spurr;
 512         u64 ic;
 513         u64 vtb;
 514         u64 hdar;
 515         u64 hdsisr;
 516         u64 heir;
 517         u64 asdr;
 518         /* These are OS privileged but need to be set late in guest entry */
 519         u64 srr0;
 520         u64 srr1;
 521         u64 sprg[4];
 522         u64 pidr;
 523         u64 cfar;
 524         u64 ppr;
 525 };
 526
 527 /* Latest version of hv_guest_state structure */
 528 #define HV_GUEST_STATE_VERSION  1
 529
 530 #endif /* __ASSEMBLY__ */
 531 #endif /* __KERNEL__ */
 532 #endif /* _ASM_POWERPC_HVCALL_H */