xref: /openbmc/qemu/include/hw/ppc/spapr_nested.h (revision a75b180f)
1 #ifndef HW_SPAPR_NESTED_H
2 #define HW_SPAPR_NESTED_H
3 
4 #include "target/ppc/cpu.h"
5 
6 /* Guest State Buffer Element IDs */
7 #define GSB_HV_VCPU_IGNORED_ID  0x0000 /* An element whose value is ignored */
8 #define GSB_HV_VCPU_STATE_SIZE  0x0001 /* HV internal format VCPU state size */
9 #define GSB_VCPU_OUT_BUF_MIN_SZ 0x0002 /* Min size of the Run VCPU o/p buffer */
10 #define GSB_VCPU_LPVR           0x0003 /* Logical PVR */
11 #define GSB_TB_OFFSET           0x0004 /* Timebase Offset */
12 #define GSB_PART_SCOPED_PAGETBL 0x0005 /* Partition Scoped Page Table */
13 #define GSB_PROCESS_TBL         0x0006 /* Process Table */
14                     /* RESERVED 0x0007 - 0x0BFF */
15 #define GSB_VCPU_IN_BUFFER      0x0C00 /* Run VCPU Input Buffer */
16 #define GSB_VCPU_OUT_BUFFER     0x0C01 /* Run VCPU Out Buffer */
17 #define GSB_VCPU_VPA            0x0C02 /* HRA to Guest VCPU VPA */
18                     /* RESERVED 0x0C03 - 0x0FFF */
19 #define GSB_VCPU_GPR0           0x1000
20 #define GSB_VCPU_GPR1           0x1001
21 #define GSB_VCPU_GPR2           0x1002
22 #define GSB_VCPU_GPR3           0x1003
23 #define GSB_VCPU_GPR4           0x1004
24 #define GSB_VCPU_GPR5           0x1005
25 #define GSB_VCPU_GPR6           0x1006
26 #define GSB_VCPU_GPR7           0x1007
27 #define GSB_VCPU_GPR8           0x1008
28 #define GSB_VCPU_GPR9           0x1009
29 #define GSB_VCPU_GPR10          0x100A
30 #define GSB_VCPU_GPR11          0x100B
31 #define GSB_VCPU_GPR12          0x100C
32 #define GSB_VCPU_GPR13          0x100D
33 #define GSB_VCPU_GPR14          0x100E
34 #define GSB_VCPU_GPR15          0x100F
35 #define GSB_VCPU_GPR16          0x1010
36 #define GSB_VCPU_GPR17          0x1011
37 #define GSB_VCPU_GPR18          0x1012
38 #define GSB_VCPU_GPR19          0x1013
39 #define GSB_VCPU_GPR20          0x1014
40 #define GSB_VCPU_GPR21          0x1015
41 #define GSB_VCPU_GPR22          0x1016
42 #define GSB_VCPU_GPR23          0x1017
43 #define GSB_VCPU_GPR24          0x1018
44 #define GSB_VCPU_GPR25          0x1019
45 #define GSB_VCPU_GPR26          0x101A
46 #define GSB_VCPU_GPR27          0x101B
47 #define GSB_VCPU_GPR28          0x101C
48 #define GSB_VCPU_GPR29          0x101D
49 #define GSB_VCPU_GPR30          0x101E
50 #define GSB_VCPU_GPR31          0x101F
51 #define GSB_VCPU_HDEC_EXPIRY_TB 0x1020
52 #define GSB_VCPU_SPR_NIA        0x1021
53 #define GSB_VCPU_SPR_MSR        0x1022
54 #define GSB_VCPU_SPR_LR         0x1023
55 #define GSB_VCPU_SPR_XER        0x1024
56 #define GSB_VCPU_SPR_CTR        0x1025
57 #define GSB_VCPU_SPR_CFAR       0x1026
58 #define GSB_VCPU_SPR_SRR0       0x1027
59 #define GSB_VCPU_SPR_SRR1       0x1028
60 #define GSB_VCPU_SPR_DAR        0x1029
61 #define GSB_VCPU_DEC_EXPIRE_TB  0x102A
62 #define GSB_VCPU_SPR_VTB        0x102B
63 #define GSB_VCPU_SPR_LPCR       0x102C
64 #define GSB_VCPU_SPR_HFSCR      0x102D
65 #define GSB_VCPU_SPR_FSCR       0x102E
66 #define GSB_VCPU_SPR_FPSCR      0x102F
67 #define GSB_VCPU_SPR_DAWR0      0x1030
68 #define GSB_VCPU_SPR_DAWR1      0x1031
69 #define GSB_VCPU_SPR_CIABR      0x1032
70 #define GSB_VCPU_SPR_PURR       0x1033
71 #define GSB_VCPU_SPR_SPURR      0x1034
72 #define GSB_VCPU_SPR_IC         0x1035
73 #define GSB_VCPU_SPR_SPRG0      0x1036
74 #define GSB_VCPU_SPR_SPRG1      0x1037
75 #define GSB_VCPU_SPR_SPRG2      0x1038
76 #define GSB_VCPU_SPR_SPRG3      0x1039
77 #define GSB_VCPU_SPR_PPR        0x103A
78 #define GSB_VCPU_SPR_MMCR0      0x103B
79 #define GSB_VCPU_SPR_MMCR1      0x103C
80 #define GSB_VCPU_SPR_MMCR2      0x103D
81 #define GSB_VCPU_SPR_MMCR3      0x103E
82 #define GSB_VCPU_SPR_MMCRA      0x103F
83 #define GSB_VCPU_SPR_SIER       0x1040
84 #define GSB_VCPU_SPR_SIER2      0x1041
85 #define GSB_VCPU_SPR_SIER3      0x1042
86 #define GSB_VCPU_SPR_BESCR      0x1043
87 #define GSB_VCPU_SPR_EBBHR      0x1044
88 #define GSB_VCPU_SPR_EBBRR      0x1045
89 #define GSB_VCPU_SPR_AMR        0x1046
90 #define GSB_VCPU_SPR_IAMR       0x1047
91 #define GSB_VCPU_SPR_AMOR       0x1048
92 #define GSB_VCPU_SPR_UAMOR      0x1049
93 #define GSB_VCPU_SPR_SDAR       0x104A
94 #define GSB_VCPU_SPR_SIAR       0x104B
95 #define GSB_VCPU_SPR_DSCR       0x104C
96 #define GSB_VCPU_SPR_TAR        0x104D
97 #define GSB_VCPU_SPR_DEXCR      0x104E
98 #define GSB_VCPU_SPR_HDEXCR     0x104F
99 #define GSB_VCPU_SPR_HASHKEYR   0x1050
100 #define GSB_VCPU_SPR_HASHPKEYR  0x1051
101 #define GSB_VCPU_SPR_CTRL       0x1052
102                     /* RESERVED 0x1053 - 0x1FFF */
103 #define GSB_VCPU_SPR_CR         0x2000
104 #define GSB_VCPU_SPR_PIDR       0x2001
105 #define GSB_VCPU_SPR_DSISR      0x2002
106 #define GSB_VCPU_SPR_VSCR       0x2003
107 #define GSB_VCPU_SPR_VRSAVE     0x2004
108 #define GSB_VCPU_SPR_DAWRX0     0x2005
109 #define GSB_VCPU_SPR_DAWRX1     0x2006
110 #define GSB_VCPU_SPR_PMC1       0x2007
111 #define GSB_VCPU_SPR_PMC2       0x2008
112 #define GSB_VCPU_SPR_PMC3       0x2009
113 #define GSB_VCPU_SPR_PMC4       0x200A
114 #define GSB_VCPU_SPR_PMC5       0x200B
115 #define GSB_VCPU_SPR_PMC6       0x200C
116 #define GSB_VCPU_SPR_WORT       0x200D
117 #define GSB_VCPU_SPR_PSPB       0x200E
118                     /* RESERVED 0x200F - 0x2FFF */
119 #define GSB_VCPU_SPR_VSR0       0x3000
120 #define GSB_VCPU_SPR_VSR1       0x3001
121 #define GSB_VCPU_SPR_VSR2       0x3002
122 #define GSB_VCPU_SPR_VSR3       0x3003
123 #define GSB_VCPU_SPR_VSR4       0x3004
124 #define GSB_VCPU_SPR_VSR5       0x3005
125 #define GSB_VCPU_SPR_VSR6       0x3006
126 #define GSB_VCPU_SPR_VSR7       0x3007
127 #define GSB_VCPU_SPR_VSR8       0x3008
128 #define GSB_VCPU_SPR_VSR9       0x3009
129 #define GSB_VCPU_SPR_VSR10      0x300A
130 #define GSB_VCPU_SPR_VSR11      0x300B
131 #define GSB_VCPU_SPR_VSR12      0x300C
132 #define GSB_VCPU_SPR_VSR13      0x300D
133 #define GSB_VCPU_SPR_VSR14      0x300E
134 #define GSB_VCPU_SPR_VSR15      0x300F
135 #define GSB_VCPU_SPR_VSR16      0x3010
136 #define GSB_VCPU_SPR_VSR17      0x3011
137 #define GSB_VCPU_SPR_VSR18      0x3012
138 #define GSB_VCPU_SPR_VSR19      0x3013
139 #define GSB_VCPU_SPR_VSR20      0x3014
140 #define GSB_VCPU_SPR_VSR21      0x3015
141 #define GSB_VCPU_SPR_VSR22      0x3016
142 #define GSB_VCPU_SPR_VSR23      0x3017
143 #define GSB_VCPU_SPR_VSR24      0x3018
144 #define GSB_VCPU_SPR_VSR25      0x3019
145 #define GSB_VCPU_SPR_VSR26      0x301A
146 #define GSB_VCPU_SPR_VSR27      0x301B
147 #define GSB_VCPU_SPR_VSR28      0x301C
148 #define GSB_VCPU_SPR_VSR29      0x301D
149 #define GSB_VCPU_SPR_VSR30      0x301E
150 #define GSB_VCPU_SPR_VSR31      0x301F
151 #define GSB_VCPU_SPR_VSR32      0x3020
152 #define GSB_VCPU_SPR_VSR33      0x3021
153 #define GSB_VCPU_SPR_VSR34      0x3022
154 #define GSB_VCPU_SPR_VSR35      0x3023
155 #define GSB_VCPU_SPR_VSR36      0x3024
156 #define GSB_VCPU_SPR_VSR37      0x3025
157 #define GSB_VCPU_SPR_VSR38      0x3026
158 #define GSB_VCPU_SPR_VSR39      0x3027
159 #define GSB_VCPU_SPR_VSR40      0x3028
160 #define GSB_VCPU_SPR_VSR41      0x3029
161 #define GSB_VCPU_SPR_VSR42      0x302A
162 #define GSB_VCPU_SPR_VSR43      0x302B
163 #define GSB_VCPU_SPR_VSR44      0x302C
164 #define GSB_VCPU_SPR_VSR45      0x302D
165 #define GSB_VCPU_SPR_VSR46      0x302E
166 #define GSB_VCPU_SPR_VSR47      0x302F
167 #define GSB_VCPU_SPR_VSR48      0x3030
168 #define GSB_VCPU_SPR_VSR49      0x3031
169 #define GSB_VCPU_SPR_VSR50      0x3032
170 #define GSB_VCPU_SPR_VSR51      0x3033
171 #define GSB_VCPU_SPR_VSR52      0x3034
172 #define GSB_VCPU_SPR_VSR53      0x3035
173 #define GSB_VCPU_SPR_VSR54      0x3036
174 #define GSB_VCPU_SPR_VSR55      0x3037
175 #define GSB_VCPU_SPR_VSR56      0x3038
176 #define GSB_VCPU_SPR_VSR57      0x3039
177 #define GSB_VCPU_SPR_VSR58      0x303A
178 #define GSB_VCPU_SPR_VSR59      0x303B
179 #define GSB_VCPU_SPR_VSR60      0x303C
180 #define GSB_VCPU_SPR_VSR61      0x303D
181 #define GSB_VCPU_SPR_VSR62      0x303E
182 #define GSB_VCPU_SPR_VSR63      0x303F
183                     /* RESERVED 0x3040 - 0xEFFF */
184 #define GSB_VCPU_SPR_HDAR       0xF000
185 #define GSB_VCPU_SPR_HDSISR     0xF001
186 #define GSB_VCPU_SPR_HEIR       0xF002
187 #define GSB_VCPU_SPR_ASDR       0xF003
188 /* End of list of Guest State Buffer Element IDs */
189 #define GSB_LAST                GSB_VCPU_SPR_ASDR
190 
191 typedef struct SpaprMachineStateNested {
192     uint64_t ptcr;
193     uint8_t api;
194 #define NESTED_API_KVM_HV  1
195 #define NESTED_API_PAPR    2
196     bool capabilities_set;
197     uint32_t pvr_base;
198     GHashTable *guests;
199 } SpaprMachineStateNested;
200 
201 typedef struct SpaprMachineStateNestedGuest {
202     uint32_t pvr_logical;
203     unsigned long nr_vcpus;
204     uint64_t parttbl[2];
205     uint64_t tb_offset;
206     struct SpaprMachineStateNestedGuestVcpu *vcpus;
207 } SpaprMachineStateNestedGuest;
208 
209 /* Nested PAPR API related macros */
210 #define H_GUEST_CAPABILITIES_COPY_MEM 0x8000000000000000
211 #define H_GUEST_CAPABILITIES_P9_MODE  0x4000000000000000
212 #define H_GUEST_CAPABILITIES_P10_MODE 0x2000000000000000
213 #define H_GUEST_CAP_VALID_MASK        (H_GUEST_CAPABILITIES_P10_MODE | \
214                                        H_GUEST_CAPABILITIES_P9_MODE)
215 #define H_GUEST_CAP_COPY_MEM_BMAP     0
216 #define H_GUEST_CAP_P9_MODE_BMAP      1
217 #define H_GUEST_CAP_P10_MODE_BMAP     2
218 #define PAPR_NESTED_GUEST_MAX         4096
219 #define H_GUEST_DELETE_ALL_FLAG       0x8000000000000000ULL
220 #define PAPR_NESTED_GUEST_VCPU_MAX    2048
221 #define VCPU_OUT_BUF_MIN_SZ           0x80ULL
222 #define HVMASK_DEFAULT                0xffffffffffffffff
223 #define HVMASK_LPCR                   0x0070000003820800
224 #define HVMASK_MSR                    0xEBFFFFFFFFBFEFFF
225 #define HVMASK_HDEXCR                 0x00000000FFFFFFFF
226 #define HVMASK_TB_OFFSET              0x000000FFFFFFFFFF
227 #define GSB_MAX_BUF_SIZE              (1024 * 1024)
228 #define H_GUEST_GETSET_STATE_FLAG_GUEST_WIDE 0x8000000000000000
229 #define GUEST_STATE_REQUEST_GUEST_WIDE       0x1
230 #define GUEST_STATE_REQUEST_SET              0x2
231 
232 /*
233  * As per ISA v3.1B, following bits are reserved:
234  *      0:2
235  *      4:57  (ISA mentions bit 58 as well but it should be used for P10)
236  *      61:63 (hence, haven't included PCR bits for v2.06 and v2.05
237  *             in LOW BITS)
238  */
239 #define PCR_LOW_BITS   (PCR_COMPAT_3_10 | PCR_COMPAT_3_00)
240 #define HVMASK_PCR     (~PCR_LOW_BITS)
241 
242 #define GUEST_STATE_ELEMENT(i, sz, s, f, ptr, c) { \
243     .id = (i),                                     \
244     .size = (sz),                                  \
245     .location = ptr,                               \
246     .offset = offsetof(struct s, f),               \
247     .copy = (c)                                    \
248 }
249 
250 #define GSBE_NESTED(i, sz, f, c) {                             \
251     .id = (i),                                                 \
252     .size = (sz),                                              \
253     .location = get_guest_ptr,                                 \
254     .offset = offsetof(struct SpaprMachineStateNestedGuest, f),\
255     .copy = (c),                                               \
256     .mask = HVMASK_DEFAULT                                     \
257 }
258 
259 #define GSBE_NESTED_MSK(i, sz, f, c, m) {                      \
260     .id = (i),                                                 \
261     .size = (sz),                                              \
262     .location = get_guest_ptr,                                 \
263     .offset = offsetof(struct SpaprMachineStateNestedGuest, f),\
264     .copy = (c),                                               \
265     .mask = (m)                                                \
266 }
267 
268 #define GSBE_NESTED_VCPU(i, sz, f, c) {                            \
269     .id = (i),                                                     \
270     .size = (sz),                                                  \
271     .location = get_vcpu_ptr,                                      \
272     .offset = offsetof(struct SpaprMachineStateNestedGuestVcpu, f),\
273     .copy = (c),                                                   \
274     .mask = HVMASK_DEFAULT                                         \
275 }
276 
277 #define GUEST_STATE_ELEMENT_NOP(i, sz) { \
278     .id = (i),                             \
279     .size = (sz),                          \
280     .location = NULL,                      \
281     .offset = 0,                           \
282     .copy = NULL,                          \
283     .mask = HVMASK_DEFAULT                 \
284 }
285 
286 #define GUEST_STATE_ELEMENT_NOP_DW(i)   \
287         GUEST_STATE_ELEMENT_NOP(i, 8)
288 #define GUEST_STATE_ELEMENT_NOP_W(i) \
289         GUEST_STATE_ELEMENT_NOP(i, 4)
290 
291 #define GUEST_STATE_ELEMENT_BASE(i, s, c) {  \
292             .id = (i),                           \
293             .size = (s),                         \
294             .location = get_vcpu_state_ptr,      \
295             .offset = 0,                         \
296             .copy = (c),                         \
297             .mask = HVMASK_DEFAULT               \
298     }
299 
300 #define GUEST_STATE_ELEMENT_OFF(i, s, f, c) {    \
301             .id = (i),                           \
302             .size = (s),                         \
303             .location = get_vcpu_state_ptr,      \
304             .offset = offsetof(struct nested_ppc_state, f),  \
305             .copy = (c),                         \
306             .mask = HVMASK_DEFAULT               \
307     }
308 
309 #define GUEST_STATE_ELEMENT_MSK(i, s, f, c, m) { \
310             .id = (i),                           \
311             .size = (s),                         \
312             .location = get_vcpu_state_ptr,      \
313             .offset = offsetof(struct nested_ppc_state, f),  \
314             .copy = (c),                         \
315             .mask = (m)                          \
316     }
317 
318 #define GUEST_STATE_ELEMENT_ENV_QW(i, f) \
319     GUEST_STATE_ELEMENT_OFF(i, 16, f, copy_state_16to16)
320 #define GUEST_STATE_ELEMENT_ENV_DW(i, f) \
321     GUEST_STATE_ELEMENT_OFF(i, 8, f, copy_state_8to8)
322 #define GUEST_STATE_ELEMENT_ENV_W(i, f) \
323     GUEST_STATE_ELEMENT_OFF(i, 4, f, copy_state_4to8)
324 #define GUEST_STATE_ELEMENT_ENV_WW(i, f) \
325     GUEST_STATE_ELEMENT_OFF(i, 4, f, copy_state_4to4)
326 #define GSE_ENV_DWM(i, f, m) \
327     GUEST_STATE_ELEMENT_MSK(i, 8, f, copy_state_8to8, m)
328 
329 struct guest_state_element {
330     uint16_t id;
331     uint16_t size;
332     uint8_t value[];
333 } QEMU_PACKED;
334 
335 struct guest_state_buffer {
336     uint32_t num_elements;
337     struct guest_state_element elements[];
338 } QEMU_PACKED;
339 
340 /* Actual buffer plus some metadata about the request */
341 struct guest_state_request {
342     struct guest_state_buffer *gsb;
343     int64_t buf;
344     int64_t len;
345     uint16_t flags;
346 };
347 
348 /*
349  * Register state for entering a nested guest with H_ENTER_NESTED.
350  * New member must be added at the end.
351  */
352 struct kvmppc_hv_guest_state {
353     uint64_t version;      /* version of this structure layout, must be first */
354     uint32_t lpid;
355     uint32_t vcpu_token;
356     /* These registers are hypervisor privileged (at least for writing) */
357     uint64_t lpcr;
358     uint64_t pcr;
359     uint64_t amor;
360     uint64_t dpdes;
361     uint64_t hfscr;
362     int64_t tb_offset;
363     uint64_t dawr0;
364     uint64_t dawrx0;
365     uint64_t ciabr;
366     uint64_t hdec_expiry;
367     uint64_t purr;
368     uint64_t spurr;
369     uint64_t ic;
370     uint64_t vtb;
371     uint64_t hdar;
372     uint64_t hdsisr;
373     uint64_t heir;
374     uint64_t asdr;
375     /* These are OS privileged but need to be set late in guest entry */
376     uint64_t srr0;
377     uint64_t srr1;
378     uint64_t sprg[4];
379     uint64_t pidr;
380     uint64_t cfar;
381     uint64_t ppr;
382     /* Version 1 ends here */
383     uint64_t dawr1;
384     uint64_t dawrx1;
385     /* Version 2 ends here */
386 };
387 
388 /* Latest version of hv_guest_state structure */
389 #define HV_GUEST_STATE_VERSION  2
390 
391 /* Linux 64-bit powerpc pt_regs struct, used by nested HV */
392 struct kvmppc_pt_regs {
393     uint64_t gpr[32];
394     uint64_t nip;
395     uint64_t msr;
396     uint64_t orig_gpr3;    /* Used for restarting system calls */
397     uint64_t ctr;
398     uint64_t link;
399     uint64_t xer;
400     uint64_t ccr;
401     uint64_t softe;        /* Soft enabled/disabled */
402     uint64_t trap;         /* Reason for being here */
403     uint64_t dar;          /* Fault registers */
404     uint64_t dsisr;        /* on 4xx/Book-E used for ESR */
405     uint64_t result;       /* Result of a system call */
406 };
407 
408 /*
409  * nested_ppc_state is used to save the host CPU state before switching it to
410  * the guest CPU state, to be restored on H_ENTER_NESTED exit.
411  */
412 struct nested_ppc_state {
413     uint64_t gpr[32];
414     uint64_t lr;
415     uint64_t ctr;
416     uint64_t cfar;
417     uint64_t msr;
418     uint64_t nip;
419     uint32_t cr;
420 
421     uint64_t xer;
422 
423     uint64_t lpcr;
424     uint64_t lpidr;
425     uint64_t pidr;
426     uint64_t pcr;
427     uint64_t dpdes;
428     uint64_t hfscr;
429     uint64_t srr0;
430     uint64_t srr1;
431     uint64_t sprg0;
432     uint64_t sprg1;
433     uint64_t sprg2;
434     uint64_t sprg3;
435     uint64_t ppr;
436 
437     int64_t tb_offset;
438     /* Nested PAPR API */
439     uint64_t amor;
440     uint64_t dawr0;
441     uint64_t dawrx0;
442     uint64_t ciabr;
443     uint64_t purr;
444     uint64_t spurr;
445     uint64_t ic;
446     uint64_t vtb;
447     uint64_t hdar;
448     uint64_t hdsisr;
449     uint64_t heir;
450     uint64_t asdr;
451     uint64_t dawr1;
452     uint64_t dawrx1;
453     uint64_t dexcr;
454     uint64_t hdexcr;
455     uint64_t hashkeyr;
456     uint64_t hashpkeyr;
457     ppc_vsr_t vsr[64] QEMU_ALIGNED(16);
458     uint64_t ebbhr;
459     uint64_t tar;
460     uint64_t ebbrr;
461     uint64_t bescr;
462     uint64_t iamr;
463     uint64_t amr;
464     uint64_t uamor;
465     uint64_t dscr;
466     uint64_t fscr;
467     uint64_t pspb;
468     uint64_t ctrl;
469     uint64_t vrsave;
470     uint64_t dar;
471     uint64_t dsisr;
472     uint64_t pmc1;
473     uint64_t pmc2;
474     uint64_t pmc3;
475     uint64_t pmc4;
476     uint64_t pmc5;
477     uint64_t pmc6;
478     uint64_t mmcr0;
479     uint64_t mmcr1;
480     uint64_t mmcr2;
481     uint64_t mmcra;
482     uint64_t sdar;
483     uint64_t siar;
484     uint64_t sier;
485     uint32_t vscr;
486     uint64_t fpscr;
487     int64_t dec_expiry_tb;
488 };
489 
490 struct SpaprMachineStateNestedGuestVcpuRunBuf {
491     uint64_t addr;
492     uint64_t size;
493 };
494 
495 typedef struct SpaprMachineStateNestedGuestVcpu {
496     bool enabled;
497     struct nested_ppc_state state;
498     struct SpaprMachineStateNestedGuestVcpuRunBuf runbufin;
499     struct SpaprMachineStateNestedGuestVcpuRunBuf runbufout;
500     int64_t tb_offset;
501     uint64_t hdecr_expiry_tb;
502 } SpaprMachineStateNestedGuestVcpu;
503 
504 struct guest_state_element_type {
505     uint16_t id;
506     int size;
507 #define GUEST_STATE_ELEMENT_TYPE_FLAG_GUEST_WIDE 0x1
508 #define GUEST_STATE_ELEMENT_TYPE_FLAG_READ_ONLY  0x2
509    uint16_t flags;
510     void *(*location)(SpaprMachineStateNestedGuest *, target_ulong);
511     size_t offset;
512     void (*copy)(void *, void *, bool);
513     uint64_t mask;
514 };
515 
516 void spapr_exit_nested(PowerPCCPU *cpu, int excp);
517 typedef struct SpaprMachineState SpaprMachineState;
518 bool spapr_get_pate_nested_hv(SpaprMachineState *spapr, PowerPCCPU *cpu,
519                               target_ulong lpid, ppc_v3_pate_t *entry);
520 uint8_t spapr_nested_api(SpaprMachineState *spapr);
521 void spapr_nested_gsb_init(void);
522 bool spapr_get_pate_nested_papr(SpaprMachineState *spapr, PowerPCCPU *cpu,
523                                 target_ulong lpid, ppc_v3_pate_t *entry);
524 #endif /* HW_SPAPR_NESTED_H */
525