xref: /openbmc/qemu/include/hw/ppc/spapr.h (revision b097ba37)
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 
123     void (*phb_placement)(SpaprMachineState *spapr, uint32_t index,
124                           uint64_t *buid, hwaddr *pio,
125                           hwaddr *mmio32, hwaddr *mmio64,
126                           unsigned n_dma, uint32_t *liobns, hwaddr *nv2gpa,
127                           hwaddr *nv2atsd, Error **errp);
128     SpaprResizeHpt resize_hpt_default;
129     SpaprCapabilities default_caps;
130     SpaprIrq *irq;
131 };
132 
133 /**
134  * SpaprMachineState:
135  */
136 struct SpaprMachineState {
137     /*< private >*/
138     MachineState parent_obj;
139 
140     struct SpaprVioBus *vio_bus;
141     QLIST_HEAD(, SpaprPhbState) phbs;
142     struct SpaprNvram *nvram;
143     ICSState *ics;
144     SpaprRtcState rtc;
145 
146     SpaprResizeHpt resize_hpt;
147     void *htab;
148     uint32_t htab_shift;
149     uint64_t patb_entry; /* Process tbl registed in H_REGISTER_PROCESS_TABLE */
150     SpaprPendingHpt *pending_hpt; /* in-progress resize */
151 
152     hwaddr rma_size;
153     int vrma_adjust;
154     ssize_t rtas_size;
155     void *rtas_blob;
156     uint32_t fdt_size;
157     uint32_t fdt_initial_size;
158     void *fdt_blob;
159     long kernel_size;
160     bool kernel_le;
161     uint32_t initrd_base;
162     long initrd_size;
163     uint64_t rtc_offset; /* Now used only during incoming migration */
164     struct PPCTimebase tb;
165     bool has_graphics;
166     uint32_t vsmt;       /* Virtual SMT mode (KVM's "core stride") */
167 
168     Notifier epow_notifier;
169     QTAILQ_HEAD(, SpaprEventLogEntry) pending_events;
170     bool use_hotplug_event_source;
171     SpaprEventSource *event_sources;
172 
173     /* ibm,client-architecture-support option negotiation */
174     bool cas_reboot;
175     bool cas_legacy_guest_workaround;
176     SpaprOptionVector *ov5;         /* QEMU-supported option vectors */
177     SpaprOptionVector *ov5_cas;     /* negotiated (via CAS) option vectors */
178     uint32_t max_compat_pvr;
179 
180     /* Migration state */
181     int htab_save_index;
182     bool htab_first_pass;
183     int htab_fd;
184 
185     /* Pending DIMM unplug cache. It is populated when a LMB
186      * unplug starts. It can be regenerated if a migration
187      * occurs during the unplug process. */
188     QTAILQ_HEAD(, SpaprDimmState) pending_dimm_unplugs;
189 
190     /*< public >*/
191     char *kvm_type;
192     char *host_model;
193     char *host_serial;
194 
195     int32_t irq_map_nr;
196     unsigned long *irq_map;
197     SpaprXive  *xive;
198     SpaprIrq *irq;
199     qemu_irq *qirqs;
200 
201     bool cmd_line_caps[SPAPR_CAP_NUM];
202     SpaprCapabilities def, eff, mig;
203 
204     unsigned gpu_numa_id;
205 };
206 
207 #define H_SUCCESS         0
208 #define H_BUSY            1        /* Hardware busy -- retry later */
209 #define H_CLOSED          2        /* Resource closed */
210 #define H_NOT_AVAILABLE   3
211 #define H_CONSTRAINED     4        /* Resource request constrained to max allowed */
212 #define H_PARTIAL         5
213 #define H_IN_PROGRESS     14       /* Kind of like busy */
214 #define H_PAGE_REGISTERED 15
215 #define H_PARTIAL_STORE   16
216 #define H_PENDING         17       /* returned from H_POLL_PENDING */
217 #define H_CONTINUE        18       /* Returned from H_Join on success */
218 #define H_LONG_BUSY_START_RANGE         9900  /* Start of long busy range */
219 #define H_LONG_BUSY_ORDER_1_MSEC        9900  /* Long busy, hint that 1msec \
220                                                  is a good time to retry */
221 #define H_LONG_BUSY_ORDER_10_MSEC       9901  /* Long busy, hint that 10msec \
222                                                  is a good time to retry */
223 #define H_LONG_BUSY_ORDER_100_MSEC      9902  /* Long busy, hint that 100msec \
224                                                  is a good time to retry */
225 #define H_LONG_BUSY_ORDER_1_SEC         9903  /* Long busy, hint that 1sec \
226                                                  is a good time to retry */
227 #define H_LONG_BUSY_ORDER_10_SEC        9904  /* Long busy, hint that 10sec \
228                                                  is a good time to retry */
229 #define H_LONG_BUSY_ORDER_100_SEC       9905  /* Long busy, hint that 100sec \
230                                                  is a good time to retry */
231 #define H_LONG_BUSY_END_RANGE           9905  /* End of long busy range */
232 #define H_HARDWARE        -1       /* Hardware error */
233 #define H_FUNCTION        -2       /* Function not supported */
234 #define H_PRIVILEGE       -3       /* Caller not privileged */
235 #define H_PARAMETER       -4       /* Parameter invalid, out-of-range or conflicting */
236 #define H_BAD_MODE        -5       /* Illegal msr value */
237 #define H_PTEG_FULL       -6       /* PTEG is full */
238 #define H_NOT_FOUND       -7       /* PTE was not found" */
239 #define H_RESERVED_DABR   -8       /* DABR address is reserved by the hypervisor on this processor" */
240 #define H_NO_MEM          -9
241 #define H_AUTHORITY       -10
242 #define H_PERMISSION      -11
243 #define H_DROPPED         -12
244 #define H_SOURCE_PARM     -13
245 #define H_DEST_PARM       -14
246 #define H_REMOTE_PARM     -15
247 #define H_RESOURCE        -16
248 #define H_ADAPTER_PARM    -17
249 #define H_RH_PARM         -18
250 #define H_RCQ_PARM        -19
251 #define H_SCQ_PARM        -20
252 #define H_EQ_PARM         -21
253 #define H_RT_PARM         -22
254 #define H_ST_PARM         -23
255 #define H_SIGT_PARM       -24
256 #define H_TOKEN_PARM      -25
257 #define H_MLENGTH_PARM    -27
258 #define H_MEM_PARM        -28
259 #define H_MEM_ACCESS_PARM -29
260 #define H_ATTR_PARM       -30
261 #define H_PORT_PARM       -31
262 #define H_MCG_PARM        -32
263 #define H_VL_PARM         -33
264 #define H_TSIZE_PARM      -34
265 #define H_TRACE_PARM      -35
266 
267 #define H_MASK_PARM       -37
268 #define H_MCG_FULL        -38
269 #define H_ALIAS_EXIST     -39
270 #define H_P_COUNTER       -40
271 #define H_TABLE_FULL      -41
272 #define H_ALT_TABLE       -42
273 #define H_MR_CONDITION    -43
274 #define H_NOT_ENOUGH_RESOURCES -44
275 #define H_R_STATE         -45
276 #define H_RESCINDEND      -46
277 #define H_P2              -55
278 #define H_P3              -56
279 #define H_P4              -57
280 #define H_P5              -58
281 #define H_P6              -59
282 #define H_P7              -60
283 #define H_P8              -61
284 #define H_P9              -62
285 #define H_UNSUPPORTED_FLAG -256
286 #define H_MULTI_THREADS_ACTIVE -9005
287 
288 
289 /* Long Busy is a condition that can be returned by the firmware
290  * when a call cannot be completed now, but the identical call
291  * should be retried later.  This prevents calls blocking in the
292  * firmware for long periods of time.  Annoyingly the firmware can return
293  * a range of return codes, hinting at how long we should wait before
294  * retrying.  If you don't care for the hint, the macro below is a good
295  * way to check for the long_busy return codes
296  */
297 #define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
298                             && (x <= H_LONG_BUSY_END_RANGE))
299 
300 /* Flags */
301 #define H_LARGE_PAGE      (1ULL<<(63-16))
302 #define H_EXACT           (1ULL<<(63-24))       /* Use exact PTE or return H_PTEG_FULL */
303 #define H_R_XLATE         (1ULL<<(63-25))       /* include a valid logical page num in the pte if the valid bit is set */
304 #define H_READ_4          (1ULL<<(63-26))       /* Return 4 PTEs */
305 #define H_PAGE_STATE_CHANGE (1ULL<<(63-28))
306 #define H_PAGE_UNUSED     ((1ULL<<(63-29)) | (1ULL<<(63-30)))
307 #define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
308 #define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1ULL<<(63-31)))
309 #define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE
310 #define H_AVPN            (1ULL<<(63-32))       /* An avpn is provided as a sanity test */
311 #define H_ANDCOND         (1ULL<<(63-33))
312 #define H_ICACHE_INVALIDATE (1ULL<<(63-40))     /* icbi, etc.  (ignored for IO pages) */
313 #define H_ICACHE_SYNCHRONIZE (1ULL<<(63-41))    /* dcbst, icbi, etc (ignored for IO pages */
314 #define H_ZERO_PAGE       (1ULL<<(63-48))       /* zero the page before mapping (ignored for IO pages) */
315 #define H_COPY_PAGE       (1ULL<<(63-49))
316 #define H_N               (1ULL<<(63-61))
317 #define H_PP1             (1ULL<<(63-62))
318 #define H_PP2             (1ULL<<(63-63))
319 
320 /* Values for 2nd argument to H_SET_MODE */
321 #define H_SET_MODE_RESOURCE_SET_CIABR           1
322 #define H_SET_MODE_RESOURCE_SET_DAWR            2
323 #define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE     3
324 #define H_SET_MODE_RESOURCE_LE                  4
325 
326 /* Flags for H_SET_MODE_RESOURCE_LE */
327 #define H_SET_MODE_ENDIAN_BIG    0
328 #define H_SET_MODE_ENDIAN_LITTLE 1
329 
330 /* VASI States */
331 #define H_VASI_INVALID    0
332 #define H_VASI_ENABLED    1
333 #define H_VASI_ABORTED    2
334 #define H_VASI_SUSPENDING 3
335 #define H_VASI_SUSPENDED  4
336 #define H_VASI_RESUMED    5
337 #define H_VASI_COMPLETED  6
338 
339 /* DABRX flags */
340 #define H_DABRX_HYPERVISOR (1ULL<<(63-61))
341 #define H_DABRX_KERNEL     (1ULL<<(63-62))
342 #define H_DABRX_USER       (1ULL<<(63-63))
343 
344 /* Values for KVM_PPC_GET_CPU_CHAR & H_GET_CPU_CHARACTERISTICS */
345 #define H_CPU_CHAR_SPEC_BAR_ORI31               PPC_BIT(0)
346 #define H_CPU_CHAR_BCCTRL_SERIALISED            PPC_BIT(1)
347 #define H_CPU_CHAR_L1D_FLUSH_ORI30              PPC_BIT(2)
348 #define H_CPU_CHAR_L1D_FLUSH_TRIG2              PPC_BIT(3)
349 #define H_CPU_CHAR_L1D_THREAD_PRIV              PPC_BIT(4)
350 #define H_CPU_CHAR_HON_BRANCH_HINTS             PPC_BIT(5)
351 #define H_CPU_CHAR_THR_RECONF_TRIG              PPC_BIT(6)
352 #define H_CPU_CHAR_CACHE_COUNT_DIS              PPC_BIT(7)
353 #define H_CPU_CHAR_BCCTR_FLUSH_ASSIST           PPC_BIT(9)
354 #define H_CPU_BEHAV_FAVOUR_SECURITY             PPC_BIT(0)
355 #define H_CPU_BEHAV_L1D_FLUSH_PR                PPC_BIT(1)
356 #define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR           PPC_BIT(2)
357 #define H_CPU_BEHAV_FLUSH_COUNT_CACHE           PPC_BIT(5)
358 
359 /* Each control block has to be on a 4K boundary */
360 #define H_CB_ALIGNMENT     4096
361 
362 /* pSeries hypervisor opcodes */
363 #define H_REMOVE                0x04
364 #define H_ENTER                 0x08
365 #define H_READ                  0x0c
366 #define H_CLEAR_MOD             0x10
367 #define H_CLEAR_REF             0x14
368 #define H_PROTECT               0x18
369 #define H_GET_TCE               0x1c
370 #define H_PUT_TCE               0x20
371 #define H_SET_SPRG0             0x24
372 #define H_SET_DABR              0x28
373 #define H_PAGE_INIT             0x2c
374 #define H_SET_ASR               0x30
375 #define H_ASR_ON                0x34
376 #define H_ASR_OFF               0x38
377 #define H_LOGICAL_CI_LOAD       0x3c
378 #define H_LOGICAL_CI_STORE      0x40
379 #define H_LOGICAL_CACHE_LOAD    0x44
380 #define H_LOGICAL_CACHE_STORE   0x48
381 #define H_LOGICAL_ICBI          0x4c
382 #define H_LOGICAL_DCBF          0x50
383 #define H_GET_TERM_CHAR         0x54
384 #define H_PUT_TERM_CHAR         0x58
385 #define H_REAL_TO_LOGICAL       0x5c
386 #define H_HYPERVISOR_DATA       0x60
387 #define H_EOI                   0x64
388 #define H_CPPR                  0x68
389 #define H_IPI                   0x6c
390 #define H_IPOLL                 0x70
391 #define H_XIRR                  0x74
392 #define H_PERFMON               0x7c
393 #define H_MIGRATE_DMA           0x78
394 #define H_REGISTER_VPA          0xDC
395 #define H_CEDE                  0xE0
396 #define H_CONFER                0xE4
397 #define H_PROD                  0xE8
398 #define H_GET_PPP               0xEC
399 #define H_SET_PPP               0xF0
400 #define H_PURR                  0xF4
401 #define H_PIC                   0xF8
402 #define H_REG_CRQ               0xFC
403 #define H_FREE_CRQ              0x100
404 #define H_VIO_SIGNAL            0x104
405 #define H_SEND_CRQ              0x108
406 #define H_COPY_RDMA             0x110
407 #define H_REGISTER_LOGICAL_LAN  0x114
408 #define H_FREE_LOGICAL_LAN      0x118
409 #define H_ADD_LOGICAL_LAN_BUFFER 0x11C
410 #define H_SEND_LOGICAL_LAN      0x120
411 #define H_BULK_REMOVE           0x124
412 #define H_MULTICAST_CTRL        0x130
413 #define H_SET_XDABR             0x134
414 #define H_STUFF_TCE             0x138
415 #define H_PUT_TCE_INDIRECT      0x13C
416 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
417 #define H_VTERM_PARTNER_INFO    0x150
418 #define H_REGISTER_VTERM        0x154
419 #define H_FREE_VTERM            0x158
420 #define H_RESET_EVENTS          0x15C
421 #define H_ALLOC_RESOURCE        0x160
422 #define H_FREE_RESOURCE         0x164
423 #define H_MODIFY_QP             0x168
424 #define H_QUERY_QP              0x16C
425 #define H_REREGISTER_PMR        0x170
426 #define H_REGISTER_SMR          0x174
427 #define H_QUERY_MR              0x178
428 #define H_QUERY_MW              0x17C
429 #define H_QUERY_HCA             0x180
430 #define H_QUERY_PORT            0x184
431 #define H_MODIFY_PORT           0x188
432 #define H_DEFINE_AQP1           0x18C
433 #define H_GET_TRACE_BUFFER      0x190
434 #define H_DEFINE_AQP0           0x194
435 #define H_RESIZE_MR             0x198
436 #define H_ATTACH_MCQP           0x19C
437 #define H_DETACH_MCQP           0x1A0
438 #define H_CREATE_RPT            0x1A4
439 #define H_REMOVE_RPT            0x1A8
440 #define H_REGISTER_RPAGES       0x1AC
441 #define H_DISABLE_AND_GETC      0x1B0
442 #define H_ERROR_DATA            0x1B4
443 #define H_GET_HCA_INFO          0x1B8
444 #define H_GET_PERF_COUNT        0x1BC
445 #define H_MANAGE_TRACE          0x1C0
446 #define H_GET_CPU_CHARACTERISTICS 0x1C8
447 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
448 #define H_QUERY_INT_STATE       0x1E4
449 #define H_POLL_PENDING          0x1D8
450 #define H_ILLAN_ATTRIBUTES      0x244
451 #define H_MODIFY_HEA_QP         0x250
452 #define H_QUERY_HEA_QP          0x254
453 #define H_QUERY_HEA             0x258
454 #define H_QUERY_HEA_PORT        0x25C
455 #define H_MODIFY_HEA_PORT       0x260
456 #define H_REG_BCMC              0x264
457 #define H_DEREG_BCMC            0x268
458 #define H_REGISTER_HEA_RPAGES   0x26C
459 #define H_DISABLE_AND_GET_HEA   0x270
460 #define H_GET_HEA_INFO          0x274
461 #define H_ALLOC_HEA_RESOURCE    0x278
462 #define H_ADD_CONN              0x284
463 #define H_DEL_CONN              0x288
464 #define H_JOIN                  0x298
465 #define H_VASI_STATE            0x2A4
466 #define H_ENABLE_CRQ            0x2B0
467 #define H_GET_EM_PARMS          0x2B8
468 #define H_SET_MPP               0x2D0
469 #define H_GET_MPP               0x2D4
470 #define H_HOME_NODE_ASSOCIATIVITY 0x2EC
471 #define H_XIRR_X                0x2FC
472 #define H_RANDOM                0x300
473 #define H_SET_MODE              0x31C
474 #define H_RESIZE_HPT_PREPARE    0x36C
475 #define H_RESIZE_HPT_COMMIT     0x370
476 #define H_CLEAN_SLB             0x374
477 #define H_INVALIDATE_PID        0x378
478 #define H_REGISTER_PROC_TBL     0x37C
479 #define H_SIGNAL_SYS_RESET      0x380
480 
481 #define H_INT_GET_SOURCE_INFO   0x3A8
482 #define H_INT_SET_SOURCE_CONFIG 0x3AC
483 #define H_INT_GET_SOURCE_CONFIG 0x3B0
484 #define H_INT_GET_QUEUE_INFO    0x3B4
485 #define H_INT_SET_QUEUE_CONFIG  0x3B8
486 #define H_INT_GET_QUEUE_CONFIG  0x3BC
487 #define H_INT_SET_OS_REPORTING_LINE 0x3C0
488 #define H_INT_GET_OS_REPORTING_LINE 0x3C4
489 #define H_INT_ESB               0x3C8
490 #define H_INT_SYNC              0x3CC
491 #define H_INT_RESET             0x3D0
492 
493 #define MAX_HCALL_OPCODE        H_INT_RESET
494 
495 /* The hcalls above are standardized in PAPR and implemented by pHyp
496  * as well.
497  *
498  * We also need some hcalls which are specific to qemu / KVM-on-POWER.
499  * We put those into the 0xf000-0xfffc range which is reserved by PAPR
500  * for "platform-specific" hcalls.
501  */
502 #define KVMPPC_HCALL_BASE       0xf000
503 #define KVMPPC_H_RTAS           (KVMPPC_HCALL_BASE + 0x0)
504 #define KVMPPC_H_LOGICAL_MEMOP  (KVMPPC_HCALL_BASE + 0x1)
505 /* Client Architecture support */
506 #define KVMPPC_H_CAS            (KVMPPC_HCALL_BASE + 0x2)
507 #define KVMPPC_H_UPDATE_DT      (KVMPPC_HCALL_BASE + 0x3)
508 #define KVMPPC_HCALL_MAX        KVMPPC_H_UPDATE_DT
509 
510 typedef struct SpaprDeviceTreeUpdateHeader {
511     uint32_t version_id;
512 } SpaprDeviceTreeUpdateHeader;
513 
514 #define hcall_dprintf(fmt, ...) \
515     do { \
516         qemu_log_mask(LOG_GUEST_ERROR, "%s: " fmt, __func__, ## __VA_ARGS__); \
517     } while (0)
518 
519 typedef target_ulong (*spapr_hcall_fn)(PowerPCCPU *cpu, SpaprMachineState *sm,
520                                        target_ulong opcode,
521                                        target_ulong *args);
522 
523 void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn);
524 target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode,
525                              target_ulong *args);
526 
527 /* ibm,set-eeh-option */
528 #define RTAS_EEH_DISABLE                 0
529 #define RTAS_EEH_ENABLE                  1
530 #define RTAS_EEH_THAW_IO                 2
531 #define RTAS_EEH_THAW_DMA                3
532 
533 /* ibm,get-config-addr-info2 */
534 #define RTAS_GET_PE_ADDR                 0
535 #define RTAS_GET_PE_MODE                 1
536 #define RTAS_PE_MODE_NONE                0
537 #define RTAS_PE_MODE_NOT_SHARED          1
538 #define RTAS_PE_MODE_SHARED              2
539 
540 /* ibm,read-slot-reset-state2 */
541 #define RTAS_EEH_PE_STATE_NORMAL         0
542 #define RTAS_EEH_PE_STATE_RESET          1
543 #define RTAS_EEH_PE_STATE_STOPPED_IO_DMA 2
544 #define RTAS_EEH_PE_STATE_STOPPED_DMA    4
545 #define RTAS_EEH_PE_STATE_UNAVAIL        5
546 #define RTAS_EEH_NOT_SUPPORT             0
547 #define RTAS_EEH_SUPPORT                 1
548 #define RTAS_EEH_PE_UNAVAIL_INFO         1000
549 #define RTAS_EEH_PE_RECOVER_INFO         0
550 
551 /* ibm,set-slot-reset */
552 #define RTAS_SLOT_RESET_DEACTIVATE       0
553 #define RTAS_SLOT_RESET_HOT              1
554 #define RTAS_SLOT_RESET_FUNDAMENTAL      3
555 
556 /* ibm,slot-error-detail */
557 #define RTAS_SLOT_TEMP_ERR_LOG           1
558 #define RTAS_SLOT_PERM_ERR_LOG           2
559 
560 /* RTAS return codes */
561 #define RTAS_OUT_SUCCESS                        0
562 #define RTAS_OUT_NO_ERRORS_FOUND                1
563 #define RTAS_OUT_HW_ERROR                       -1
564 #define RTAS_OUT_BUSY                           -2
565 #define RTAS_OUT_PARAM_ERROR                    -3
566 #define RTAS_OUT_NOT_SUPPORTED                  -3
567 #define RTAS_OUT_NO_SUCH_INDICATOR              -3
568 #define RTAS_OUT_NOT_AUTHORIZED                 -9002
569 #define RTAS_OUT_SYSPARM_PARAM_ERROR            -9999
570 
571 /* DDW pagesize mask values from ibm,query-pe-dma-window */
572 #define RTAS_DDW_PGSIZE_4K       0x01
573 #define RTAS_DDW_PGSIZE_64K      0x02
574 #define RTAS_DDW_PGSIZE_16M      0x04
575 #define RTAS_DDW_PGSIZE_32M      0x08
576 #define RTAS_DDW_PGSIZE_64M      0x10
577 #define RTAS_DDW_PGSIZE_128M     0x20
578 #define RTAS_DDW_PGSIZE_256M     0x40
579 #define RTAS_DDW_PGSIZE_16G      0x80
580 
581 /* RTAS tokens */
582 #define RTAS_TOKEN_BASE      0x2000
583 
584 #define RTAS_DISPLAY_CHARACTER                  (RTAS_TOKEN_BASE + 0x00)
585 #define RTAS_GET_TIME_OF_DAY                    (RTAS_TOKEN_BASE + 0x01)
586 #define RTAS_SET_TIME_OF_DAY                    (RTAS_TOKEN_BASE + 0x02)
587 #define RTAS_POWER_OFF                          (RTAS_TOKEN_BASE + 0x03)
588 #define RTAS_SYSTEM_REBOOT                      (RTAS_TOKEN_BASE + 0x04)
589 #define RTAS_QUERY_CPU_STOPPED_STATE            (RTAS_TOKEN_BASE + 0x05)
590 #define RTAS_START_CPU                          (RTAS_TOKEN_BASE + 0x06)
591 #define RTAS_STOP_SELF                          (RTAS_TOKEN_BASE + 0x07)
592 #define RTAS_IBM_GET_SYSTEM_PARAMETER           (RTAS_TOKEN_BASE + 0x08)
593 #define RTAS_IBM_SET_SYSTEM_PARAMETER           (RTAS_TOKEN_BASE + 0x09)
594 #define RTAS_IBM_SET_XIVE                       (RTAS_TOKEN_BASE + 0x0A)
595 #define RTAS_IBM_GET_XIVE                       (RTAS_TOKEN_BASE + 0x0B)
596 #define RTAS_IBM_INT_OFF                        (RTAS_TOKEN_BASE + 0x0C)
597 #define RTAS_IBM_INT_ON                         (RTAS_TOKEN_BASE + 0x0D)
598 #define RTAS_CHECK_EXCEPTION                    (RTAS_TOKEN_BASE + 0x0E)
599 #define RTAS_EVENT_SCAN                         (RTAS_TOKEN_BASE + 0x0F)
600 #define RTAS_IBM_SET_TCE_BYPASS                 (RTAS_TOKEN_BASE + 0x10)
601 #define RTAS_QUIESCE                            (RTAS_TOKEN_BASE + 0x11)
602 #define RTAS_NVRAM_FETCH                        (RTAS_TOKEN_BASE + 0x12)
603 #define RTAS_NVRAM_STORE                        (RTAS_TOKEN_BASE + 0x13)
604 #define RTAS_READ_PCI_CONFIG                    (RTAS_TOKEN_BASE + 0x14)
605 #define RTAS_WRITE_PCI_CONFIG                   (RTAS_TOKEN_BASE + 0x15)
606 #define RTAS_IBM_READ_PCI_CONFIG                (RTAS_TOKEN_BASE + 0x16)
607 #define RTAS_IBM_WRITE_PCI_CONFIG               (RTAS_TOKEN_BASE + 0x17)
608 #define RTAS_IBM_QUERY_INTERRUPT_SOURCE_NUMBER  (RTAS_TOKEN_BASE + 0x18)
609 #define RTAS_IBM_CHANGE_MSI                     (RTAS_TOKEN_BASE + 0x19)
610 #define RTAS_SET_INDICATOR                      (RTAS_TOKEN_BASE + 0x1A)
611 #define RTAS_SET_POWER_LEVEL                    (RTAS_TOKEN_BASE + 0x1B)
612 #define RTAS_GET_POWER_LEVEL                    (RTAS_TOKEN_BASE + 0x1C)
613 #define RTAS_GET_SENSOR_STATE                   (RTAS_TOKEN_BASE + 0x1D)
614 #define RTAS_IBM_CONFIGURE_CONNECTOR            (RTAS_TOKEN_BASE + 0x1E)
615 #define RTAS_IBM_OS_TERM                        (RTAS_TOKEN_BASE + 0x1F)
616 #define RTAS_IBM_SET_EEH_OPTION                 (RTAS_TOKEN_BASE + 0x20)
617 #define RTAS_IBM_GET_CONFIG_ADDR_INFO2          (RTAS_TOKEN_BASE + 0x21)
618 #define RTAS_IBM_READ_SLOT_RESET_STATE2         (RTAS_TOKEN_BASE + 0x22)
619 #define RTAS_IBM_SET_SLOT_RESET                 (RTAS_TOKEN_BASE + 0x23)
620 #define RTAS_IBM_CONFIGURE_PE                   (RTAS_TOKEN_BASE + 0x24)
621 #define RTAS_IBM_SLOT_ERROR_DETAIL              (RTAS_TOKEN_BASE + 0x25)
622 #define RTAS_IBM_QUERY_PE_DMA_WINDOW            (RTAS_TOKEN_BASE + 0x26)
623 #define RTAS_IBM_CREATE_PE_DMA_WINDOW           (RTAS_TOKEN_BASE + 0x27)
624 #define RTAS_IBM_REMOVE_PE_DMA_WINDOW           (RTAS_TOKEN_BASE + 0x28)
625 #define RTAS_IBM_RESET_PE_DMA_WINDOW            (RTAS_TOKEN_BASE + 0x29)
626 
627 #define RTAS_TOKEN_MAX                          (RTAS_TOKEN_BASE + 0x2A)
628 
629 /* RTAS ibm,get-system-parameter token values */
630 #define RTAS_SYSPARM_SPLPAR_CHARACTERISTICS      20
631 #define RTAS_SYSPARM_DIAGNOSTICS_RUN_MODE        42
632 #define RTAS_SYSPARM_UUID                        48
633 
634 /* RTAS indicator/sensor types
635  *
636  * as defined by PAPR+ 2.7 7.3.5.4, Table 41
637  *
638  * NOTE: currently only DR-related sensors are implemented here
639  */
640 #define RTAS_SENSOR_TYPE_ISOLATION_STATE        9001
641 #define RTAS_SENSOR_TYPE_DR                     9002
642 #define RTAS_SENSOR_TYPE_ALLOCATION_STATE       9003
643 #define RTAS_SENSOR_TYPE_ENTITY_SENSE RTAS_SENSOR_TYPE_ALLOCATION_STATE
644 
645 /* Possible values for the platform-processor-diagnostics-run-mode parameter
646  * of the RTAS ibm,get-system-parameter call.
647  */
648 #define DIAGNOSTICS_RUN_MODE_DISABLED  0
649 #define DIAGNOSTICS_RUN_MODE_STAGGERED 1
650 #define DIAGNOSTICS_RUN_MODE_IMMEDIATE 2
651 #define DIAGNOSTICS_RUN_MODE_PERIODIC  3
652 
653 static inline uint64_t ppc64_phys_to_real(uint64_t addr)
654 {
655     return addr & ~0xF000000000000000ULL;
656 }
657 
658 static inline uint32_t rtas_ld(target_ulong phys, int n)
659 {
660     return ldl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n));
661 }
662 
663 static inline uint64_t rtas_ldq(target_ulong phys, int n)
664 {
665     return (uint64_t)rtas_ld(phys, n) << 32 | rtas_ld(phys, n + 1);
666 }
667 
668 static inline void rtas_st(target_ulong phys, int n, uint32_t val)
669 {
670     stl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n), val);
671 }
672 
673 typedef void (*spapr_rtas_fn)(PowerPCCPU *cpu, SpaprMachineState *sm,
674                               uint32_t token,
675                               uint32_t nargs, target_ulong args,
676                               uint32_t nret, target_ulong rets);
677 void spapr_rtas_register(int token, const char *name, spapr_rtas_fn fn);
678 static inline void spapr_rtas_unregister(int token)
679 {
680     spapr_rtas_register(token, NULL, NULL);
681 }
682 target_ulong spapr_rtas_call(PowerPCCPU *cpu, SpaprMachineState *sm,
683                              uint32_t token, uint32_t nargs, target_ulong args,
684                              uint32_t nret, target_ulong rets);
685 void spapr_dt_rtas_tokens(void *fdt, int rtas);
686 void spapr_load_rtas(SpaprMachineState *spapr, void *fdt, hwaddr addr);
687 
688 #define SPAPR_TCE_PAGE_SHIFT   12
689 #define SPAPR_TCE_PAGE_SIZE    (1ULL << SPAPR_TCE_PAGE_SHIFT)
690 #define SPAPR_TCE_PAGE_MASK    (SPAPR_TCE_PAGE_SIZE - 1)
691 
692 #define SPAPR_VIO_BASE_LIOBN    0x00000000
693 #define SPAPR_VIO_LIOBN(reg)    (0x00000000 | (reg))
694 #define SPAPR_PCI_LIOBN(phb_index, window_num) \
695     (0x80000000 | ((phb_index) << 8) | (window_num))
696 #define SPAPR_IS_PCI_LIOBN(liobn)   (!!((liobn) & 0x80000000))
697 #define SPAPR_PCI_DMA_WINDOW_NUM(liobn) ((liobn) & 0xff)
698 
699 #define RTAS_ERROR_LOG_MAX      2048
700 
701 #define RTAS_EVENT_SCAN_RATE    1
702 
703 /* This helper should be used to encode interrupt specifiers when the related
704  * "interrupt-controller" node has its "#interrupt-cells" property set to 2 (ie,
705  * VIO devices, RTAS event sources and PHBs).
706  */
707 static inline void spapr_dt_irq(uint32_t *intspec, int irq, bool is_lsi)
708 {
709     intspec[0] = cpu_to_be32(irq);
710     intspec[1] = is_lsi ? cpu_to_be32(1) : 0;
711 }
712 
713 typedef struct SpaprTceTable SpaprTceTable;
714 
715 #define TYPE_SPAPR_TCE_TABLE "spapr-tce-table"
716 #define SPAPR_TCE_TABLE(obj) \
717     OBJECT_CHECK(SpaprTceTable, (obj), TYPE_SPAPR_TCE_TABLE)
718 
719 #define TYPE_SPAPR_IOMMU_MEMORY_REGION "spapr-iommu-memory-region"
720 #define SPAPR_IOMMU_MEMORY_REGION(obj) \
721         OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_SPAPR_IOMMU_MEMORY_REGION)
722 
723 struct SpaprTceTable {
724     DeviceState parent;
725     uint32_t liobn;
726     uint32_t nb_table;
727     uint64_t bus_offset;
728     uint32_t page_shift;
729     uint64_t *table;
730     uint32_t mig_nb_table;
731     uint64_t *mig_table;
732     bool bypass;
733     bool need_vfio;
734     bool skipping_replay;
735     int fd;
736     MemoryRegion root;
737     IOMMUMemoryRegion iommu;
738     struct SpaprVioDevice *vdev; /* for @bypass migration compatibility only */
739     QLIST_ENTRY(SpaprTceTable) list;
740 };
741 
742 SpaprTceTable *spapr_tce_find_by_liobn(target_ulong liobn);
743 
744 struct SpaprEventLogEntry {
745     uint32_t summary;
746     uint32_t extended_length;
747     void *extended_log;
748     QTAILQ_ENTRY(SpaprEventLogEntry) next;
749 };
750 
751 void spapr_events_init(SpaprMachineState *sm);
752 void spapr_dt_events(SpaprMachineState *sm, void *fdt);
753 int spapr_h_cas_compose_response(SpaprMachineState *sm,
754                                  target_ulong addr, target_ulong size,
755                                  SpaprOptionVector *ov5_updates);
756 void close_htab_fd(SpaprMachineState *spapr);
757 void spapr_setup_hpt_and_vrma(SpaprMachineState *spapr);
758 void spapr_free_hpt(SpaprMachineState *spapr);
759 SpaprTceTable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn);
760 void spapr_tce_table_enable(SpaprTceTable *tcet,
761                             uint32_t page_shift, uint64_t bus_offset,
762                             uint32_t nb_table);
763 void spapr_tce_table_disable(SpaprTceTable *tcet);
764 void spapr_tce_set_need_vfio(SpaprTceTable *tcet, bool need_vfio);
765 
766 MemoryRegion *spapr_tce_get_iommu(SpaprTceTable *tcet);
767 int spapr_dma_dt(void *fdt, int node_off, const char *propname,
768                  uint32_t liobn, uint64_t window, uint32_t size);
769 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
770                       SpaprTceTable *tcet);
771 void spapr_pci_switch_vga(bool big_endian);
772 void spapr_hotplug_req_add_by_index(SpaprDrc *drc);
773 void spapr_hotplug_req_remove_by_index(SpaprDrc *drc);
774 void spapr_hotplug_req_add_by_count(SpaprDrcType drc_type,
775                                        uint32_t count);
776 void spapr_hotplug_req_remove_by_count(SpaprDrcType drc_type,
777                                           uint32_t count);
778 void spapr_hotplug_req_add_by_count_indexed(SpaprDrcType drc_type,
779                                             uint32_t count, uint32_t index);
780 void spapr_hotplug_req_remove_by_count_indexed(SpaprDrcType drc_type,
781                                                uint32_t count, uint32_t index);
782 int spapr_hpt_shift_for_ramsize(uint64_t ramsize);
783 void spapr_reallocate_hpt(SpaprMachineState *spapr, int shift,
784                           Error **errp);
785 void spapr_clear_pending_events(SpaprMachineState *spapr);
786 int spapr_max_server_number(SpaprMachineState *spapr);
787 void spapr_store_hpte(PowerPCCPU *cpu, hwaddr ptex,
788                       uint64_t pte0, uint64_t pte1);
789 
790 /* DRC callbacks. */
791 void spapr_core_release(DeviceState *dev);
792 int spapr_core_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
793                            void *fdt, int *fdt_start_offset, Error **errp);
794 void spapr_lmb_release(DeviceState *dev);
795 int spapr_lmb_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
796                           void *fdt, int *fdt_start_offset, Error **errp);
797 void spapr_phb_release(DeviceState *dev);
798 int spapr_phb_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
799                           void *fdt, int *fdt_start_offset, Error **errp);
800 
801 void spapr_rtc_read(SpaprRtcState *rtc, struct tm *tm, uint32_t *ns);
802 int spapr_rtc_import_offset(SpaprRtcState *rtc, int64_t legacy_offset);
803 
804 #define TYPE_SPAPR_RNG "spapr-rng"
805 
806 #define SPAPR_MEMORY_BLOCK_SIZE ((hwaddr)1 << 28) /* 256MB */
807 
808 /*
809  * This defines the maximum number of DIMM slots we can have for sPAPR
810  * guest. This is not defined by sPAPR but we are defining it to 32 slots
811  * based on default number of slots provided by PowerPC kernel.
812  */
813 #define SPAPR_MAX_RAM_SLOTS     32
814 
815 /* 1GB alignment for hotplug memory region */
816 #define SPAPR_DEVICE_MEM_ALIGN (1 * GiB)
817 
818 /*
819  * Number of 32 bit words in each LMB list entry in ibm,dynamic-memory
820  * property under ibm,dynamic-reconfiguration-memory node.
821  */
822 #define SPAPR_DR_LMB_LIST_ENTRY_SIZE 6
823 
824 /*
825  * Defines for flag value in ibm,dynamic-memory property under
826  * ibm,dynamic-reconfiguration-memory node.
827  */
828 #define SPAPR_LMB_FLAGS_ASSIGNED 0x00000008
829 #define SPAPR_LMB_FLAGS_DRC_INVALID 0x00000020
830 #define SPAPR_LMB_FLAGS_RESERVED 0x00000080
831 
832 void spapr_do_system_reset_on_cpu(CPUState *cs, run_on_cpu_data arg);
833 
834 #define HTAB_SIZE(spapr)        (1ULL << ((spapr)->htab_shift))
835 
836 int spapr_get_vcpu_id(PowerPCCPU *cpu);
837 void spapr_set_vcpu_id(PowerPCCPU *cpu, int cpu_index, Error **errp);
838 PowerPCCPU *spapr_find_cpu(int vcpu_id);
839 
840 int spapr_caps_pre_load(void *opaque);
841 int spapr_caps_pre_save(void *opaque);
842 
843 /*
844  * Handling of optional capabilities
845  */
846 extern const VMStateDescription vmstate_spapr_cap_htm;
847 extern const VMStateDescription vmstate_spapr_cap_vsx;
848 extern const VMStateDescription vmstate_spapr_cap_dfp;
849 extern const VMStateDescription vmstate_spapr_cap_cfpc;
850 extern const VMStateDescription vmstate_spapr_cap_sbbc;
851 extern const VMStateDescription vmstate_spapr_cap_ibs;
852 extern const VMStateDescription vmstate_spapr_cap_nested_kvm_hv;
853 extern const VMStateDescription vmstate_spapr_cap_large_decr;
854 extern const VMStateDescription vmstate_spapr_cap_ccf_assist;
855 
856 static inline uint8_t spapr_get_cap(SpaprMachineState *spapr, int cap)
857 {
858     return spapr->eff.caps[cap];
859 }
860 
861 void spapr_caps_init(SpaprMachineState *spapr);
862 void spapr_caps_apply(SpaprMachineState *spapr);
863 void spapr_caps_cpu_apply(SpaprMachineState *spapr, PowerPCCPU *cpu);
864 void spapr_caps_add_properties(SpaprMachineClass *smc, Error **errp);
865 int spapr_caps_post_migration(SpaprMachineState *spapr);
866 
867 void spapr_check_pagesize(SpaprMachineState *spapr, hwaddr pagesize,
868                           Error **errp);
869 /*
870  * XIVE definitions
871  */
872 #define SPAPR_OV5_XIVE_LEGACY   0x0
873 #define SPAPR_OV5_XIVE_EXPLOIT  0x40
874 #define SPAPR_OV5_XIVE_BOTH     0x80 /* Only to advertise on the platform */
875 
876 void spapr_set_all_lpcrs(target_ulong value, target_ulong mask);
877 #endif /* HW_SPAPR_H */
878