xref: /openbmc/qemu/include/hw/ppc/spapr.h (revision 3d9569b8)
1 #ifndef HW_SPAPR_H
2 #define HW_SPAPR_H
3 
4 #include "qemu/units.h"
5 #include "sysemu/dma.h"
6 #include "hw/boards.h"
7 #include "hw/ppc/spapr_drc.h"
8 #include "hw/mem/pc-dimm.h"
9 #include "hw/ppc/spapr_ovec.h"
10 #include "hw/ppc/spapr_irq.h"
11 #include "hw/ppc/spapr_xive.h"  /* For SpaprXive */
12 #include "hw/ppc/xics.h"        /* For ICSState */
13 
14 struct SpaprVioBus;
15 struct SpaprPhbState;
16 struct SpaprNvram;
17 
18 typedef struct SpaprEventLogEntry SpaprEventLogEntry;
19 typedef struct SpaprEventSource SpaprEventSource;
20 typedef struct SpaprPendingHpt SpaprPendingHpt;
21 
22 #define HPTE64_V_HPTE_DIRTY     0x0000000000000040ULL
23 #define SPAPR_ENTRY_POINT       0x100
24 
25 #define SPAPR_TIMEBASE_FREQ     512000000ULL
26 
27 #define TYPE_SPAPR_RTC "spapr-rtc"
28 
29 #define SPAPR_RTC(obj)                                  \
30     OBJECT_CHECK(SpaprRtcState, (obj), TYPE_SPAPR_RTC)
31 
32 typedef struct SpaprRtcState SpaprRtcState;
33 struct SpaprRtcState {
34     /*< private >*/
35     DeviceState parent_obj;
36     int64_t ns_offset;
37 };
38 
39 typedef struct SpaprDimmState SpaprDimmState;
40 typedef struct SpaprMachineClass SpaprMachineClass;
41 
42 #define TYPE_SPAPR_MACHINE      "spapr-machine"
43 #define SPAPR_MACHINE(obj) \
44     OBJECT_CHECK(SpaprMachineState, (obj), TYPE_SPAPR_MACHINE)
45 #define SPAPR_MACHINE_GET_CLASS(obj) \
46     OBJECT_GET_CLASS(SpaprMachineClass, obj, TYPE_SPAPR_MACHINE)
47 #define SPAPR_MACHINE_CLASS(klass) \
48     OBJECT_CLASS_CHECK(SpaprMachineClass, klass, TYPE_SPAPR_MACHINE)
49 
50 typedef enum {
51     SPAPR_RESIZE_HPT_DEFAULT = 0,
52     SPAPR_RESIZE_HPT_DISABLED,
53     SPAPR_RESIZE_HPT_ENABLED,
54     SPAPR_RESIZE_HPT_REQUIRED,
55 } SpaprResizeHpt;
56 
57 /**
58  * Capabilities
59  */
60 
61 /* Hardware Transactional Memory */
62 #define SPAPR_CAP_HTM                   0x00
63 /* Vector Scalar Extensions */
64 #define SPAPR_CAP_VSX                   0x01
65 /* Decimal Floating Point */
66 #define SPAPR_CAP_DFP                   0x02
67 /* Cache Flush on Privilege Change */
68 #define SPAPR_CAP_CFPC                  0x03
69 /* Speculation Barrier Bounds Checking */
70 #define SPAPR_CAP_SBBC                  0x04
71 /* Indirect Branch Serialisation */
72 #define SPAPR_CAP_IBS                   0x05
73 /* HPT Maximum Page Size (encoded as a shift) */
74 #define SPAPR_CAP_HPT_MAXPAGESIZE       0x06
75 /* Nested KVM-HV */
76 #define SPAPR_CAP_NESTED_KVM_HV         0x07
77 /* Large Decrementer */
78 #define SPAPR_CAP_LARGE_DECREMENTER     0x08
79 /* Count Cache Flush Assist HW Instruction */
80 #define SPAPR_CAP_CCF_ASSIST            0x09
81 /* Num Caps */
82 #define SPAPR_CAP_NUM                   (SPAPR_CAP_CCF_ASSIST + 1)
83 
84 /*
85  * Capability Values
86  */
87 /* Bool Caps */
88 #define SPAPR_CAP_OFF                   0x00
89 #define SPAPR_CAP_ON                    0x01
90 
91 /* Custom Caps */
92 
93 /* Generic */
94 #define SPAPR_CAP_BROKEN                0x00
95 #define SPAPR_CAP_WORKAROUND            0x01
96 #define SPAPR_CAP_FIXED                 0x02
97 /* SPAPR_CAP_IBS (cap-ibs) */
98 #define SPAPR_CAP_FIXED_IBS             0x02
99 #define SPAPR_CAP_FIXED_CCD             0x03
100 #define SPAPR_CAP_FIXED_NA              0x10 /* Lets leave a bit of a gap... */
101 
102 typedef struct SpaprCapabilities SpaprCapabilities;
103 struct SpaprCapabilities {
104     uint8_t caps[SPAPR_CAP_NUM];
105 };
106 
107 /**
108  * SpaprMachineClass:
109  */
110 struct SpaprMachineClass {
111     /*< private >*/
112     MachineClass parent_class;
113 
114     /*< public >*/
115     bool dr_lmb_enabled;       /* enable dynamic-reconfig/hotplug of LMBs */
116     bool dr_phb_enabled;       /* enable dynamic-reconfig/hotplug of PHBs */
117     bool update_dt_enabled;    /* enable KVMPPC_H_UPDATE_DT */
118     bool use_ohci_by_default;  /* use USB-OHCI instead of XHCI */
119     bool pre_2_10_has_unused_icps;
120     bool legacy_irq_allocation;
121     bool broken_host_serial_model; /* present real host info to the guest */
122     bool pre_4_1_migration; /* don't migrate hpt-max-page-size */
123 
124     void (*phb_placement)(SpaprMachineState *spapr, uint32_t index,
125                           uint64_t *buid, hwaddr *pio,
126                           hwaddr *mmio32, hwaddr *mmio64,
127                           unsigned n_dma, uint32_t *liobns, hwaddr *nv2gpa,
128                           hwaddr *nv2atsd, Error **errp);
129     SpaprResizeHpt resize_hpt_default;
130     SpaprCapabilities default_caps;
131     SpaprIrq *irq;
132 };
133 
134 /**
135  * SpaprMachineState:
136  */
137 struct SpaprMachineState {
138     /*< private >*/
139     MachineState parent_obj;
140 
141     struct SpaprVioBus *vio_bus;
142     QLIST_HEAD(, SpaprPhbState) phbs;
143     struct SpaprNvram *nvram;
144     ICSState *ics;
145     SpaprRtcState rtc;
146 
147     SpaprResizeHpt resize_hpt;
148     void *htab;
149     uint32_t htab_shift;
150     uint64_t patb_entry; /* Process tbl registed in H_REGISTER_PROCESS_TABLE */
151     SpaprPendingHpt *pending_hpt; /* in-progress resize */
152 
153     hwaddr rma_size;
154     int vrma_adjust;
155     ssize_t rtas_size;
156     void *rtas_blob;
157     uint32_t fdt_size;
158     uint32_t fdt_initial_size;
159     void *fdt_blob;
160     long kernel_size;
161     bool kernel_le;
162     uint32_t initrd_base;
163     long initrd_size;
164     uint64_t rtc_offset; /* Now used only during incoming migration */
165     struct PPCTimebase tb;
166     bool has_graphics;
167     uint32_t vsmt;       /* Virtual SMT mode (KVM's "core stride") */
168 
169     Notifier epow_notifier;
170     QTAILQ_HEAD(, SpaprEventLogEntry) pending_events;
171     bool use_hotplug_event_source;
172     SpaprEventSource *event_sources;
173 
174     /* ibm,client-architecture-support option negotiation */
175     bool cas_reboot;
176     bool cas_legacy_guest_workaround;
177     SpaprOptionVector *ov5;         /* QEMU-supported option vectors */
178     SpaprOptionVector *ov5_cas;     /* negotiated (via CAS) option vectors */
179     uint32_t max_compat_pvr;
180 
181     /* Migration state */
182     int htab_save_index;
183     bool htab_first_pass;
184     int htab_fd;
185 
186     /* Pending DIMM unplug cache. It is populated when a LMB
187      * unplug starts. It can be regenerated if a migration
188      * occurs during the unplug process. */
189     QTAILQ_HEAD(, SpaprDimmState) pending_dimm_unplugs;
190 
191     /*< public >*/
192     char *kvm_type;
193     char *host_model;
194     char *host_serial;
195 
196     int32_t irq_map_nr;
197     unsigned long *irq_map;
198     SpaprXive  *xive;
199     SpaprIrq *irq;
200     qemu_irq *qirqs;
201 
202     bool cmd_line_caps[SPAPR_CAP_NUM];
203     SpaprCapabilities def, eff, mig;
204 
205     unsigned gpu_numa_id;
206 };
207 
208 #define H_SUCCESS         0
209 #define H_BUSY            1        /* Hardware busy -- retry later */
210 #define H_CLOSED          2        /* Resource closed */
211 #define H_NOT_AVAILABLE   3
212 #define H_CONSTRAINED     4        /* Resource request constrained to max allowed */
213 #define H_PARTIAL         5
214 #define H_IN_PROGRESS     14       /* Kind of like busy */
215 #define H_PAGE_REGISTERED 15
216 #define H_PARTIAL_STORE   16
217 #define H_PENDING         17       /* returned from H_POLL_PENDING */
218 #define H_CONTINUE        18       /* Returned from H_Join on success */
219 #define H_LONG_BUSY_START_RANGE         9900  /* Start of long busy range */
220 #define H_LONG_BUSY_ORDER_1_MSEC        9900  /* Long busy, hint that 1msec \
221                                                  is a good time to retry */
222 #define H_LONG_BUSY_ORDER_10_MSEC       9901  /* Long busy, hint that 10msec \
223                                                  is a good time to retry */
224 #define H_LONG_BUSY_ORDER_100_MSEC      9902  /* Long busy, hint that 100msec \
225                                                  is a good time to retry */
226 #define H_LONG_BUSY_ORDER_1_SEC         9903  /* Long busy, hint that 1sec \
227                                                  is a good time to retry */
228 #define H_LONG_BUSY_ORDER_10_SEC        9904  /* Long busy, hint that 10sec \
229                                                  is a good time to retry */
230 #define H_LONG_BUSY_ORDER_100_SEC       9905  /* Long busy, hint that 100sec \
231                                                  is a good time to retry */
232 #define H_LONG_BUSY_END_RANGE           9905  /* End of long busy range */
233 #define H_HARDWARE        -1       /* Hardware error */
234 #define H_FUNCTION        -2       /* Function not supported */
235 #define H_PRIVILEGE       -3       /* Caller not privileged */
236 #define H_PARAMETER       -4       /* Parameter invalid, out-of-range or conflicting */
237 #define H_BAD_MODE        -5       /* Illegal msr value */
238 #define H_PTEG_FULL       -6       /* PTEG is full */
239 #define H_NOT_FOUND       -7       /* PTE was not found" */
240 #define H_RESERVED_DABR   -8       /* DABR address is reserved by the hypervisor on this processor" */
241 #define H_NO_MEM          -9
242 #define H_AUTHORITY       -10
243 #define H_PERMISSION      -11
244 #define H_DROPPED         -12
245 #define H_SOURCE_PARM     -13
246 #define H_DEST_PARM       -14
247 #define H_REMOTE_PARM     -15
248 #define H_RESOURCE        -16
249 #define H_ADAPTER_PARM    -17
250 #define H_RH_PARM         -18
251 #define H_RCQ_PARM        -19
252 #define H_SCQ_PARM        -20
253 #define H_EQ_PARM         -21
254 #define H_RT_PARM         -22
255 #define H_ST_PARM         -23
256 #define H_SIGT_PARM       -24
257 #define H_TOKEN_PARM      -25
258 #define H_MLENGTH_PARM    -27
259 #define H_MEM_PARM        -28
260 #define H_MEM_ACCESS_PARM -29
261 #define H_ATTR_PARM       -30
262 #define H_PORT_PARM       -31
263 #define H_MCG_PARM        -32
264 #define H_VL_PARM         -33
265 #define H_TSIZE_PARM      -34
266 #define H_TRACE_PARM      -35
267 
268 #define H_MASK_PARM       -37
269 #define H_MCG_FULL        -38
270 #define H_ALIAS_EXIST     -39
271 #define H_P_COUNTER       -40
272 #define H_TABLE_FULL      -41
273 #define H_ALT_TABLE       -42
274 #define H_MR_CONDITION    -43
275 #define H_NOT_ENOUGH_RESOURCES -44
276 #define H_R_STATE         -45
277 #define H_RESCINDEND      -46
278 #define H_P2              -55
279 #define H_P3              -56
280 #define H_P4              -57
281 #define H_P5              -58
282 #define H_P6              -59
283 #define H_P7              -60
284 #define H_P8              -61
285 #define H_P9              -62
286 #define H_UNSUPPORTED_FLAG -256
287 #define H_MULTI_THREADS_ACTIVE -9005
288 
289 
290 /* Long Busy is a condition that can be returned by the firmware
291  * when a call cannot be completed now, but the identical call
292  * should be retried later.  This prevents calls blocking in the
293  * firmware for long periods of time.  Annoyingly the firmware can return
294  * a range of return codes, hinting at how long we should wait before
295  * retrying.  If you don't care for the hint, the macro below is a good
296  * way to check for the long_busy return codes
297  */
298 #define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
299                             && (x <= H_LONG_BUSY_END_RANGE))
300 
301 /* Flags */
302 #define H_LARGE_PAGE      (1ULL<<(63-16))
303 #define H_EXACT           (1ULL<<(63-24))       /* Use exact PTE or return H_PTEG_FULL */
304 #define H_R_XLATE         (1ULL<<(63-25))       /* include a valid logical page num in the pte if the valid bit is set */
305 #define H_READ_4          (1ULL<<(63-26))       /* Return 4 PTEs */
306 #define H_PAGE_STATE_CHANGE (1ULL<<(63-28))
307 #define H_PAGE_UNUSED     ((1ULL<<(63-29)) | (1ULL<<(63-30)))
308 #define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
309 #define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1ULL<<(63-31)))
310 #define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE
311 #define H_AVPN            (1ULL<<(63-32))       /* An avpn is provided as a sanity test */
312 #define H_ANDCOND         (1ULL<<(63-33))
313 #define H_ICACHE_INVALIDATE (1ULL<<(63-40))     /* icbi, etc.  (ignored for IO pages) */
314 #define H_ICACHE_SYNCHRONIZE (1ULL<<(63-41))    /* dcbst, icbi, etc (ignored for IO pages */
315 #define H_ZERO_PAGE       (1ULL<<(63-48))       /* zero the page before mapping (ignored for IO pages) */
316 #define H_COPY_PAGE       (1ULL<<(63-49))
317 #define H_N               (1ULL<<(63-61))
318 #define H_PP1             (1ULL<<(63-62))
319 #define H_PP2             (1ULL<<(63-63))
320 
321 /* Values for 2nd argument to H_SET_MODE */
322 #define H_SET_MODE_RESOURCE_SET_CIABR           1
323 #define H_SET_MODE_RESOURCE_SET_DAWR            2
324 #define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE     3
325 #define H_SET_MODE_RESOURCE_LE                  4
326 
327 /* Flags for H_SET_MODE_RESOURCE_LE */
328 #define H_SET_MODE_ENDIAN_BIG    0
329 #define H_SET_MODE_ENDIAN_LITTLE 1
330 
331 /* VASI States */
332 #define H_VASI_INVALID    0
333 #define H_VASI_ENABLED    1
334 #define H_VASI_ABORTED    2
335 #define H_VASI_SUSPENDING 3
336 #define H_VASI_SUSPENDED  4
337 #define H_VASI_RESUMED    5
338 #define H_VASI_COMPLETED  6
339 
340 /* DABRX flags */
341 #define H_DABRX_HYPERVISOR (1ULL<<(63-61))
342 #define H_DABRX_KERNEL     (1ULL<<(63-62))
343 #define H_DABRX_USER       (1ULL<<(63-63))
344 
345 /* Values for KVM_PPC_GET_CPU_CHAR & H_GET_CPU_CHARACTERISTICS */
346 #define H_CPU_CHAR_SPEC_BAR_ORI31               PPC_BIT(0)
347 #define H_CPU_CHAR_BCCTRL_SERIALISED            PPC_BIT(1)
348 #define H_CPU_CHAR_L1D_FLUSH_ORI30              PPC_BIT(2)
349 #define H_CPU_CHAR_L1D_FLUSH_TRIG2              PPC_BIT(3)
350 #define H_CPU_CHAR_L1D_THREAD_PRIV              PPC_BIT(4)
351 #define H_CPU_CHAR_HON_BRANCH_HINTS             PPC_BIT(5)
352 #define H_CPU_CHAR_THR_RECONF_TRIG              PPC_BIT(6)
353 #define H_CPU_CHAR_CACHE_COUNT_DIS              PPC_BIT(7)
354 #define H_CPU_CHAR_BCCTR_FLUSH_ASSIST           PPC_BIT(9)
355 #define H_CPU_BEHAV_FAVOUR_SECURITY             PPC_BIT(0)
356 #define H_CPU_BEHAV_L1D_FLUSH_PR                PPC_BIT(1)
357 #define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR           PPC_BIT(2)
358 #define H_CPU_BEHAV_FLUSH_COUNT_CACHE           PPC_BIT(5)
359 
360 /* Each control block has to be on a 4K boundary */
361 #define H_CB_ALIGNMENT     4096
362 
363 /* pSeries hypervisor opcodes */
364 #define H_REMOVE                0x04
365 #define H_ENTER                 0x08
366 #define H_READ                  0x0c
367 #define H_CLEAR_MOD             0x10
368 #define H_CLEAR_REF             0x14
369 #define H_PROTECT               0x18
370 #define H_GET_TCE               0x1c
371 #define H_PUT_TCE               0x20
372 #define H_SET_SPRG0             0x24
373 #define H_SET_DABR              0x28
374 #define H_PAGE_INIT             0x2c
375 #define H_SET_ASR               0x30
376 #define H_ASR_ON                0x34
377 #define H_ASR_OFF               0x38
378 #define H_LOGICAL_CI_LOAD       0x3c
379 #define H_LOGICAL_CI_STORE      0x40
380 #define H_LOGICAL_CACHE_LOAD    0x44
381 #define H_LOGICAL_CACHE_STORE   0x48
382 #define H_LOGICAL_ICBI          0x4c
383 #define H_LOGICAL_DCBF          0x50
384 #define H_GET_TERM_CHAR         0x54
385 #define H_PUT_TERM_CHAR         0x58
386 #define H_REAL_TO_LOGICAL       0x5c
387 #define H_HYPERVISOR_DATA       0x60
388 #define H_EOI                   0x64
389 #define H_CPPR                  0x68
390 #define H_IPI                   0x6c
391 #define H_IPOLL                 0x70
392 #define H_XIRR                  0x74
393 #define H_PERFMON               0x7c
394 #define H_MIGRATE_DMA           0x78
395 #define H_REGISTER_VPA          0xDC
396 #define H_CEDE                  0xE0
397 #define H_CONFER                0xE4
398 #define H_PROD                  0xE8
399 #define H_GET_PPP               0xEC
400 #define H_SET_PPP               0xF0
401 #define H_PURR                  0xF4
402 #define H_PIC                   0xF8
403 #define H_REG_CRQ               0xFC
404 #define H_FREE_CRQ              0x100
405 #define H_VIO_SIGNAL            0x104
406 #define H_SEND_CRQ              0x108
407 #define H_COPY_RDMA             0x110
408 #define H_REGISTER_LOGICAL_LAN  0x114
409 #define H_FREE_LOGICAL_LAN      0x118
410 #define H_ADD_LOGICAL_LAN_BUFFER 0x11C
411 #define H_SEND_LOGICAL_LAN      0x120
412 #define H_BULK_REMOVE           0x124
413 #define H_MULTICAST_CTRL        0x130
414 #define H_SET_XDABR             0x134
415 #define H_STUFF_TCE             0x138
416 #define H_PUT_TCE_INDIRECT      0x13C
417 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
418 #define H_VTERM_PARTNER_INFO    0x150
419 #define H_REGISTER_VTERM        0x154
420 #define H_FREE_VTERM            0x158
421 #define H_RESET_EVENTS          0x15C
422 #define H_ALLOC_RESOURCE        0x160
423 #define H_FREE_RESOURCE         0x164
424 #define H_MODIFY_QP             0x168
425 #define H_QUERY_QP              0x16C
426 #define H_REREGISTER_PMR        0x170
427 #define H_REGISTER_SMR          0x174
428 #define H_QUERY_MR              0x178
429 #define H_QUERY_MW              0x17C
430 #define H_QUERY_HCA             0x180
431 #define H_QUERY_PORT            0x184
432 #define H_MODIFY_PORT           0x188
433 #define H_DEFINE_AQP1           0x18C
434 #define H_GET_TRACE_BUFFER      0x190
435 #define H_DEFINE_AQP0           0x194
436 #define H_RESIZE_MR             0x198
437 #define H_ATTACH_MCQP           0x19C
438 #define H_DETACH_MCQP           0x1A0
439 #define H_CREATE_RPT            0x1A4
440 #define H_REMOVE_RPT            0x1A8
441 #define H_REGISTER_RPAGES       0x1AC
442 #define H_DISABLE_AND_GETC      0x1B0
443 #define H_ERROR_DATA            0x1B4
444 #define H_GET_HCA_INFO          0x1B8
445 #define H_GET_PERF_COUNT        0x1BC
446 #define H_MANAGE_TRACE          0x1C0
447 #define H_GET_CPU_CHARACTERISTICS 0x1C8
448 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
449 #define H_QUERY_INT_STATE       0x1E4
450 #define H_POLL_PENDING          0x1D8
451 #define H_ILLAN_ATTRIBUTES      0x244
452 #define H_MODIFY_HEA_QP         0x250
453 #define H_QUERY_HEA_QP          0x254
454 #define H_QUERY_HEA             0x258
455 #define H_QUERY_HEA_PORT        0x25C
456 #define H_MODIFY_HEA_PORT       0x260
457 #define H_REG_BCMC              0x264
458 #define H_DEREG_BCMC            0x268
459 #define H_REGISTER_HEA_RPAGES   0x26C
460 #define H_DISABLE_AND_GET_HEA   0x270
461 #define H_GET_HEA_INFO          0x274
462 #define H_ALLOC_HEA_RESOURCE    0x278
463 #define H_ADD_CONN              0x284
464 #define H_DEL_CONN              0x288
465 #define H_JOIN                  0x298
466 #define H_VASI_STATE            0x2A4
467 #define H_ENABLE_CRQ            0x2B0
468 #define H_GET_EM_PARMS          0x2B8
469 #define H_SET_MPP               0x2D0
470 #define H_GET_MPP               0x2D4
471 #define H_HOME_NODE_ASSOCIATIVITY 0x2EC
472 #define H_XIRR_X                0x2FC
473 #define H_RANDOM                0x300
474 #define H_SET_MODE              0x31C
475 #define H_RESIZE_HPT_PREPARE    0x36C
476 #define H_RESIZE_HPT_COMMIT     0x370
477 #define H_CLEAN_SLB             0x374
478 #define H_INVALIDATE_PID        0x378
479 #define H_REGISTER_PROC_TBL     0x37C
480 #define H_SIGNAL_SYS_RESET      0x380
481 
482 #define H_INT_GET_SOURCE_INFO   0x3A8
483 #define H_INT_SET_SOURCE_CONFIG 0x3AC
484 #define H_INT_GET_SOURCE_CONFIG 0x3B0
485 #define H_INT_GET_QUEUE_INFO    0x3B4
486 #define H_INT_SET_QUEUE_CONFIG  0x3B8
487 #define H_INT_GET_QUEUE_CONFIG  0x3BC
488 #define H_INT_SET_OS_REPORTING_LINE 0x3C0
489 #define H_INT_GET_OS_REPORTING_LINE 0x3C4
490 #define H_INT_ESB               0x3C8
491 #define H_INT_SYNC              0x3CC
492 #define H_INT_RESET             0x3D0
493 
494 #define MAX_HCALL_OPCODE        H_INT_RESET
495 
496 /* The hcalls above are standardized in PAPR and implemented by pHyp
497  * as well.
498  *
499  * We also need some hcalls which are specific to qemu / KVM-on-POWER.
500  * We put those into the 0xf000-0xfffc range which is reserved by PAPR
501  * for "platform-specific" hcalls.
502  */
503 #define KVMPPC_HCALL_BASE       0xf000
504 #define KVMPPC_H_RTAS           (KVMPPC_HCALL_BASE + 0x0)
505 #define KVMPPC_H_LOGICAL_MEMOP  (KVMPPC_HCALL_BASE + 0x1)
506 /* Client Architecture support */
507 #define KVMPPC_H_CAS            (KVMPPC_HCALL_BASE + 0x2)
508 #define KVMPPC_H_UPDATE_DT      (KVMPPC_HCALL_BASE + 0x3)
509 #define KVMPPC_HCALL_MAX        KVMPPC_H_UPDATE_DT
510 
511 typedef struct SpaprDeviceTreeUpdateHeader {
512     uint32_t version_id;
513 } SpaprDeviceTreeUpdateHeader;
514 
515 #define hcall_dprintf(fmt, ...) \
516     do { \
517         qemu_log_mask(LOG_GUEST_ERROR, "%s: " fmt, __func__, ## __VA_ARGS__); \
518     } while (0)
519 
520 typedef target_ulong (*spapr_hcall_fn)(PowerPCCPU *cpu, SpaprMachineState *sm,
521                                        target_ulong opcode,
522                                        target_ulong *args);
523 
524 void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn);
525 target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode,
526                              target_ulong *args);
527 
528 /* ibm,set-eeh-option */
529 #define RTAS_EEH_DISABLE                 0
530 #define RTAS_EEH_ENABLE                  1
531 #define RTAS_EEH_THAW_IO                 2
532 #define RTAS_EEH_THAW_DMA                3
533 
534 /* ibm,get-config-addr-info2 */
535 #define RTAS_GET_PE_ADDR                 0
536 #define RTAS_GET_PE_MODE                 1
537 #define RTAS_PE_MODE_NONE                0
538 #define RTAS_PE_MODE_NOT_SHARED          1
539 #define RTAS_PE_MODE_SHARED              2
540 
541 /* ibm,read-slot-reset-state2 */
542 #define RTAS_EEH_PE_STATE_NORMAL         0
543 #define RTAS_EEH_PE_STATE_RESET          1
544 #define RTAS_EEH_PE_STATE_STOPPED_IO_DMA 2
545 #define RTAS_EEH_PE_STATE_STOPPED_DMA    4
546 #define RTAS_EEH_PE_STATE_UNAVAIL        5
547 #define RTAS_EEH_NOT_SUPPORT             0
548 #define RTAS_EEH_SUPPORT                 1
549 #define RTAS_EEH_PE_UNAVAIL_INFO         1000
550 #define RTAS_EEH_PE_RECOVER_INFO         0
551 
552 /* ibm,set-slot-reset */
553 #define RTAS_SLOT_RESET_DEACTIVATE       0
554 #define RTAS_SLOT_RESET_HOT              1
555 #define RTAS_SLOT_RESET_FUNDAMENTAL      3
556 
557 /* ibm,slot-error-detail */
558 #define RTAS_SLOT_TEMP_ERR_LOG           1
559 #define RTAS_SLOT_PERM_ERR_LOG           2
560 
561 /* RTAS return codes */
562 #define RTAS_OUT_SUCCESS                        0
563 #define RTAS_OUT_NO_ERRORS_FOUND                1
564 #define RTAS_OUT_HW_ERROR                       -1
565 #define RTAS_OUT_BUSY                           -2
566 #define RTAS_OUT_PARAM_ERROR                    -3
567 #define RTAS_OUT_NOT_SUPPORTED                  -3
568 #define RTAS_OUT_NO_SUCH_INDICATOR              -3
569 #define RTAS_OUT_NOT_AUTHORIZED                 -9002
570 #define RTAS_OUT_SYSPARM_PARAM_ERROR            -9999
571 
572 /* DDW pagesize mask values from ibm,query-pe-dma-window */
573 #define RTAS_DDW_PGSIZE_4K       0x01
574 #define RTAS_DDW_PGSIZE_64K      0x02
575 #define RTAS_DDW_PGSIZE_16M      0x04
576 #define RTAS_DDW_PGSIZE_32M      0x08
577 #define RTAS_DDW_PGSIZE_64M      0x10
578 #define RTAS_DDW_PGSIZE_128M     0x20
579 #define RTAS_DDW_PGSIZE_256M     0x40
580 #define RTAS_DDW_PGSIZE_16G      0x80
581 
582 /* RTAS tokens */
583 #define RTAS_TOKEN_BASE      0x2000
584 
585 #define RTAS_DISPLAY_CHARACTER                  (RTAS_TOKEN_BASE + 0x00)
586 #define RTAS_GET_TIME_OF_DAY                    (RTAS_TOKEN_BASE + 0x01)
587 #define RTAS_SET_TIME_OF_DAY                    (RTAS_TOKEN_BASE + 0x02)
588 #define RTAS_POWER_OFF                          (RTAS_TOKEN_BASE + 0x03)
589 #define RTAS_SYSTEM_REBOOT                      (RTAS_TOKEN_BASE + 0x04)
590 #define RTAS_QUERY_CPU_STOPPED_STATE            (RTAS_TOKEN_BASE + 0x05)
591 #define RTAS_START_CPU                          (RTAS_TOKEN_BASE + 0x06)
592 #define RTAS_STOP_SELF                          (RTAS_TOKEN_BASE + 0x07)
593 #define RTAS_IBM_GET_SYSTEM_PARAMETER           (RTAS_TOKEN_BASE + 0x08)
594 #define RTAS_IBM_SET_SYSTEM_PARAMETER           (RTAS_TOKEN_BASE + 0x09)
595 #define RTAS_IBM_SET_XIVE                       (RTAS_TOKEN_BASE + 0x0A)
596 #define RTAS_IBM_GET_XIVE                       (RTAS_TOKEN_BASE + 0x0B)
597 #define RTAS_IBM_INT_OFF                        (RTAS_TOKEN_BASE + 0x0C)
598 #define RTAS_IBM_INT_ON                         (RTAS_TOKEN_BASE + 0x0D)
599 #define RTAS_CHECK_EXCEPTION                    (RTAS_TOKEN_BASE + 0x0E)
600 #define RTAS_EVENT_SCAN                         (RTAS_TOKEN_BASE + 0x0F)
601 #define RTAS_IBM_SET_TCE_BYPASS                 (RTAS_TOKEN_BASE + 0x10)
602 #define RTAS_QUIESCE                            (RTAS_TOKEN_BASE + 0x11)
603 #define RTAS_NVRAM_FETCH                        (RTAS_TOKEN_BASE + 0x12)
604 #define RTAS_NVRAM_STORE                        (RTAS_TOKEN_BASE + 0x13)
605 #define RTAS_READ_PCI_CONFIG                    (RTAS_TOKEN_BASE + 0x14)
606 #define RTAS_WRITE_PCI_CONFIG                   (RTAS_TOKEN_BASE + 0x15)
607 #define RTAS_IBM_READ_PCI_CONFIG                (RTAS_TOKEN_BASE + 0x16)
608 #define RTAS_IBM_WRITE_PCI_CONFIG               (RTAS_TOKEN_BASE + 0x17)
609 #define RTAS_IBM_QUERY_INTERRUPT_SOURCE_NUMBER  (RTAS_TOKEN_BASE + 0x18)
610 #define RTAS_IBM_CHANGE_MSI                     (RTAS_TOKEN_BASE + 0x19)
611 #define RTAS_SET_INDICATOR                      (RTAS_TOKEN_BASE + 0x1A)
612 #define RTAS_SET_POWER_LEVEL                    (RTAS_TOKEN_BASE + 0x1B)
613 #define RTAS_GET_POWER_LEVEL                    (RTAS_TOKEN_BASE + 0x1C)
614 #define RTAS_GET_SENSOR_STATE                   (RTAS_TOKEN_BASE + 0x1D)
615 #define RTAS_IBM_CONFIGURE_CONNECTOR            (RTAS_TOKEN_BASE + 0x1E)
616 #define RTAS_IBM_OS_TERM                        (RTAS_TOKEN_BASE + 0x1F)
617 #define RTAS_IBM_SET_EEH_OPTION                 (RTAS_TOKEN_BASE + 0x20)
618 #define RTAS_IBM_GET_CONFIG_ADDR_INFO2          (RTAS_TOKEN_BASE + 0x21)
619 #define RTAS_IBM_READ_SLOT_RESET_STATE2         (RTAS_TOKEN_BASE + 0x22)
620 #define RTAS_IBM_SET_SLOT_RESET                 (RTAS_TOKEN_BASE + 0x23)
621 #define RTAS_IBM_CONFIGURE_PE                   (RTAS_TOKEN_BASE + 0x24)
622 #define RTAS_IBM_SLOT_ERROR_DETAIL              (RTAS_TOKEN_BASE + 0x25)
623 #define RTAS_IBM_QUERY_PE_DMA_WINDOW            (RTAS_TOKEN_BASE + 0x26)
624 #define RTAS_IBM_CREATE_PE_DMA_WINDOW           (RTAS_TOKEN_BASE + 0x27)
625 #define RTAS_IBM_REMOVE_PE_DMA_WINDOW           (RTAS_TOKEN_BASE + 0x28)
626 #define RTAS_IBM_RESET_PE_DMA_WINDOW            (RTAS_TOKEN_BASE + 0x29)
627 
628 #define RTAS_TOKEN_MAX                          (RTAS_TOKEN_BASE + 0x2A)
629 
630 /* RTAS ibm,get-system-parameter token values */
631 #define RTAS_SYSPARM_SPLPAR_CHARACTERISTICS      20
632 #define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE        42
633 #define RTAS_SYSPARM_UUID                        48
634 
635 /* RTAS indicator/sensor types
636  *
637  * as defined by PAPR+ 2.7 7.3.5.4, Table 41
638  *
639  * NOTE: currently only DR-related sensors are implemented here
640  */
641 #define RTAS_SENSOR_TYPE_ISOLATION_STATE        9001
642 #define RTAS_SENSOR_TYPE_DR                     9002
643 #define RTAS_SENSOR_TYPE_ALLOCATION_STATE       9003
644 #define RTAS_SENSOR_TYPE_ENTITY_SENSE RTAS_SENSOR_TYPE_ALLOCATION_STATE
645 
646 /* Possible values for the platform-processor-diagnostics-run-mode parameter
647  * of the RTAS ibm,get-system-parameter call.
648  */
649 #define DIAGNOSTICS_RUN_MODE_DISABLED  0
650 #define DIAGNOSTICS_RUN_MODE_STAGGERED 1
651 #define DIAGNOSTICS_RUN_MODE_IMMEDIATE 2
652 #define DIAGNOSTICS_RUN_MODE_PERIODIC  3
653 
654 static inline uint64_t ppc64_phys_to_real(uint64_t addr)
655 {
656     return addr & ~0xF000000000000000ULL;
657 }
658 
659 static inline uint32_t rtas_ld(target_ulong phys, int n)
660 {
661     return ldl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n));
662 }
663 
664 static inline uint64_t rtas_ldq(target_ulong phys, int n)
665 {
666     return (uint64_t)rtas_ld(phys, n) << 32 | rtas_ld(phys, n + 1);
667 }
668 
669 static inline void rtas_st(target_ulong phys, int n, uint32_t val)
670 {
671     stl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n), val);
672 }
673 
674 typedef void (*spapr_rtas_fn)(PowerPCCPU *cpu, SpaprMachineState *sm,
675                               uint32_t token,
676                               uint32_t nargs, target_ulong args,
677                               uint32_t nret, target_ulong rets);
678 void spapr_rtas_register(int token, const char *name, spapr_rtas_fn fn);
679 static inline void spapr_rtas_unregister(int token)
680 {
681     spapr_rtas_register(token, NULL, NULL);
682 }
683 target_ulong spapr_rtas_call(PowerPCCPU *cpu, SpaprMachineState *sm,
684                              uint32_t token, uint32_t nargs, target_ulong args,
685                              uint32_t nret, target_ulong rets);
686 void spapr_dt_rtas_tokens(void *fdt, int rtas);
687 void spapr_load_rtas(SpaprMachineState *spapr, void *fdt, hwaddr addr);
688 
689 #define SPAPR_TCE_PAGE_SHIFT   12
690 #define SPAPR_TCE_PAGE_SIZE    (1ULL << SPAPR_TCE_PAGE_SHIFT)
691 #define SPAPR_TCE_PAGE_MASK    (SPAPR_TCE_PAGE_SIZE - 1)
692 
693 #define SPAPR_VIO_BASE_LIOBN    0x00000000
694 #define SPAPR_VIO_LIOBN(reg)    (0x00000000 | (reg))
695 #define SPAPR_PCI_LIOBN(phb_index, window_num) \
696     (0x80000000 | ((phb_index) << 8) | (window_num))
697 #define SPAPR_IS_PCI_LIOBN(liobn)   (!!((liobn) & 0x80000000))
698 #define SPAPR_PCI_DMA_WINDOW_NUM(liobn) ((liobn) & 0xff)
699 
700 #define RTAS_ERROR_LOG_MAX      2048
701 
702 #define RTAS_EVENT_SCAN_RATE    1
703 
704 /* This helper should be used to encode interrupt specifiers when the related
705  * "interrupt-controller" node has its "#interrupt-cells" property set to 2 (ie,
706  * VIO devices, RTAS event sources and PHBs).
707  */
708 static inline void spapr_dt_irq(uint32_t *intspec, int irq, bool is_lsi)
709 {
710     intspec[0] = cpu_to_be32(irq);
711     intspec[1] = is_lsi ? cpu_to_be32(1) : 0;
712 }
713 
714 typedef struct SpaprTceTable SpaprTceTable;
715 
716 #define TYPE_SPAPR_TCE_TABLE "spapr-tce-table"
717 #define SPAPR_TCE_TABLE(obj) \
718     OBJECT_CHECK(SpaprTceTable, (obj), TYPE_SPAPR_TCE_TABLE)
719 
720 #define TYPE_SPAPR_IOMMU_MEMORY_REGION "spapr-iommu-memory-region"
721 #define SPAPR_IOMMU_MEMORY_REGION(obj) \
722         OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_SPAPR_IOMMU_MEMORY_REGION)
723 
724 struct SpaprTceTable {
725     DeviceState parent;
726     uint32_t liobn;
727     uint32_t nb_table;
728     uint64_t bus_offset;
729     uint32_t page_shift;
730     uint64_t *table;
731     uint32_t mig_nb_table;
732     uint64_t *mig_table;
733     bool bypass;
734     bool need_vfio;
735     bool skipping_replay;
736     int fd;
737     MemoryRegion root;
738     IOMMUMemoryRegion iommu;
739     struct SpaprVioDevice *vdev; /* for @bypass migration compatibility only */
740     QLIST_ENTRY(SpaprTceTable) list;
741 };
742 
743 SpaprTceTable *spapr_tce_find_by_liobn(target_ulong liobn);
744 
745 struct SpaprEventLogEntry {
746     uint32_t summary;
747     uint32_t extended_length;
748     void *extended_log;
749     QTAILQ_ENTRY(SpaprEventLogEntry) next;
750 };
751 
752 void spapr_events_init(SpaprMachineState *sm);
753 void spapr_dt_events(SpaprMachineState *sm, void *fdt);
754 int spapr_h_cas_compose_response(SpaprMachineState *sm,
755                                  target_ulong addr, target_ulong size,
756                                  SpaprOptionVector *ov5_updates);
757 void close_htab_fd(SpaprMachineState *spapr);
758 void spapr_setup_hpt_and_vrma(SpaprMachineState *spapr);
759 void spapr_free_hpt(SpaprMachineState *spapr);
760 SpaprTceTable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn);
761 void spapr_tce_table_enable(SpaprTceTable *tcet,
762                             uint32_t page_shift, uint64_t bus_offset,
763                             uint32_t nb_table);
764 void spapr_tce_table_disable(SpaprTceTable *tcet);
765 void spapr_tce_set_need_vfio(SpaprTceTable *tcet, bool need_vfio);
766 
767 MemoryRegion *spapr_tce_get_iommu(SpaprTceTable *tcet);
768 int spapr_dma_dt(void *fdt, int node_off, const char *propname,
769                  uint32_t liobn, uint64_t window, uint32_t size);
770 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
771                       SpaprTceTable *tcet);
772 void spapr_pci_switch_vga(bool big_endian);
773 void spapr_hotplug_req_add_by_index(SpaprDrc *drc);
774 void spapr_hotplug_req_remove_by_index(SpaprDrc *drc);
775 void spapr_hotplug_req_add_by_count(SpaprDrcType drc_type,
776                                        uint32_t count);
777 void spapr_hotplug_req_remove_by_count(SpaprDrcType drc_type,
778                                           uint32_t count);
779 void spapr_hotplug_req_add_by_count_indexed(SpaprDrcType drc_type,
780                                             uint32_t count, uint32_t index);
781 void spapr_hotplug_req_remove_by_count_indexed(SpaprDrcType drc_type,
782                                                uint32_t count, uint32_t index);
783 int spapr_hpt_shift_for_ramsize(uint64_t ramsize);
784 void spapr_reallocate_hpt(SpaprMachineState *spapr, int shift,
785                           Error **errp);
786 void spapr_clear_pending_events(SpaprMachineState *spapr);
787 int spapr_max_server_number(SpaprMachineState *spapr);
788 void spapr_store_hpte(PowerPCCPU *cpu, hwaddr ptex,
789                       uint64_t pte0, uint64_t pte1);
790 
791 /* DRC callbacks. */
792 void spapr_core_release(DeviceState *dev);
793 int spapr_core_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
794                            void *fdt, int *fdt_start_offset, Error **errp);
795 void spapr_lmb_release(DeviceState *dev);
796 int spapr_lmb_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
797                           void *fdt, int *fdt_start_offset, Error **errp);
798 void spapr_phb_release(DeviceState *dev);
799 int spapr_phb_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
800                           void *fdt, int *fdt_start_offset, Error **errp);
801 
802 void spapr_rtc_read(SpaprRtcState *rtc, struct tm *tm, uint32_t *ns);
803 int spapr_rtc_import_offset(SpaprRtcState *rtc, int64_t legacy_offset);
804 
805 #define TYPE_SPAPR_RNG "spapr-rng"
806 
807 #define SPAPR_MEMORY_BLOCK_SIZE ((hwaddr)1 << 28) /* 256MB */
808 
809 /*
810  * This defines the maximum number of DIMM slots we can have for sPAPR
811  * guest. This is not defined by sPAPR but we are defining it to 32 slots
812  * based on default number of slots provided by PowerPC kernel.
813  */
814 #define SPAPR_MAX_RAM_SLOTS     32
815 
816 /* 1GB alignment for hotplug memory region */
817 #define SPAPR_DEVICE_MEM_ALIGN (1 * GiB)
818 
819 /*
820  * Number of 32 bit words in each LMB list entry in ibm,dynamic-memory
821  * property under ibm,dynamic-reconfiguration-memory node.
822  */
823 #define SPAPR_DR_LMB_LIST_ENTRY_SIZE 6
824 
825 /*
826  * Defines for flag value in ibm,dynamic-memory property under
827  * ibm,dynamic-reconfiguration-memory node.
828  */
829 #define SPAPR_LMB_FLAGS_ASSIGNED 0x00000008
830 #define SPAPR_LMB_FLAGS_DRC_INVALID 0x00000020
831 #define SPAPR_LMB_FLAGS_RESERVED 0x00000080
832 
833 void spapr_do_system_reset_on_cpu(CPUState *cs, run_on_cpu_data arg);
834 
835 #define HTAB_SIZE(spapr)        (1ULL << ((spapr)->htab_shift))
836 
837 int spapr_get_vcpu_id(PowerPCCPU *cpu);
838 void spapr_set_vcpu_id(PowerPCCPU *cpu, int cpu_index, Error **errp);
839 PowerPCCPU *spapr_find_cpu(int vcpu_id);
840 
841 int spapr_caps_pre_load(void *opaque);
842 int spapr_caps_pre_save(void *opaque);
843 
844 /*
845  * Handling of optional capabilities
846  */
847 extern const VMStateDescription vmstate_spapr_cap_htm;
848 extern const VMStateDescription vmstate_spapr_cap_vsx;
849 extern const VMStateDescription vmstate_spapr_cap_dfp;
850 extern const VMStateDescription vmstate_spapr_cap_cfpc;
851 extern const VMStateDescription vmstate_spapr_cap_sbbc;
852 extern const VMStateDescription vmstate_spapr_cap_ibs;
853 extern const VMStateDescription vmstate_spapr_cap_hpt_maxpagesize;
854 extern const VMStateDescription vmstate_spapr_cap_nested_kvm_hv;
855 extern const VMStateDescription vmstate_spapr_cap_large_decr;
856 extern const VMStateDescription vmstate_spapr_cap_ccf_assist;
857 
858 static inline uint8_t spapr_get_cap(SpaprMachineState *spapr, int cap)
859 {
860     return spapr->eff.caps[cap];
861 }
862 
863 void spapr_caps_init(SpaprMachineState *spapr);
864 void spapr_caps_apply(SpaprMachineState *spapr);
865 void spapr_caps_cpu_apply(SpaprMachineState *spapr, PowerPCCPU *cpu);
866 void spapr_caps_add_properties(SpaprMachineClass *smc, Error **errp);
867 int spapr_caps_post_migration(SpaprMachineState *spapr);
868 
869 void spapr_check_pagesize(SpaprMachineState *spapr, hwaddr pagesize,
870                           Error **errp);
871 /*
872  * XIVE definitions
873  */
874 #define SPAPR_OV5_XIVE_LEGACY   0x0
875 #define SPAPR_OV5_XIVE_EXPLOIT  0x40
876 #define SPAPR_OV5_XIVE_BOTH     0x80 /* Only to advertise on the platform */
877 
878 void spapr_set_all_lpcrs(target_ulong value, target_ulong mask);
879 #endif /* HW_SPAPR_H */
880