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4e342025 AG |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License, version 2, as | |
4 | * published by the Free Software Foundation. | |
5 | * | |
6 | * This program is distributed in the hope that it will be useful, | |
7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | * GNU General Public License for more details. | |
10 | * | |
11 | * You should have received a copy of the GNU General Public License | |
12 | * along with this program; if not, write to the Free Software | |
13 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
14 | * | |
15 | * Copyright SUSE Linux Products GmbH 2009 | |
16 | * | |
17 | * Authors: Alexander Graf <agraf@suse.de> | |
18 | */ | |
19 | ||
20 | #ifndef __ASM_KVM_BOOK3S_H__ | |
21 | #define __ASM_KVM_BOOK3S_H__ | |
22 | ||
23 | #include <linux/types.h> | |
24 | #include <linux/kvm_host.h> | |
2191d657 | 25 | #include <asm/kvm_book3s_asm.h> |
4e342025 | 26 | |
4e342025 | 27 | struct kvmppc_bat { |
e15a1137 | 28 | u64 raw; |
4e342025 AG |
29 | u32 bepi; |
30 | u32 bepi_mask; | |
4e342025 AG |
31 | u32 brpn; |
32 | u8 wimg; | |
33 | u8 pp; | |
3ed9c6d2 AG |
34 | bool vs : 1; |
35 | bool vp : 1; | |
4e342025 AG |
36 | }; |
37 | ||
38 | struct kvmppc_sid_map { | |
39 | u64 guest_vsid; | |
40 | u64 guest_esid; | |
41 | u64 host_vsid; | |
3ed9c6d2 | 42 | bool valid : 1; |
4e342025 AG |
43 | }; |
44 | ||
45 | #define SID_MAP_BITS 9 | |
46 | #define SID_MAP_NUM (1 << SID_MAP_BITS) | |
47 | #define SID_MAP_MASK (SID_MAP_NUM - 1) | |
48 | ||
8b6db3bc AG |
49 | #ifdef CONFIG_PPC_BOOK3S_64 |
50 | #define SID_CONTEXTS 1 | |
51 | #else | |
52 | #define SID_CONTEXTS 128 | |
53 | #define VSID_POOL_SIZE (SID_CONTEXTS * 16) | |
54 | #endif | |
55 | ||
c4befc58 PM |
56 | struct hpte_cache { |
57 | struct hlist_node list_pte; | |
58 | struct hlist_node list_pte_long; | |
59 | struct hlist_node list_vpte; | |
60 | struct hlist_node list_vpte_long; | |
a4a0f252 PM |
61 | #ifdef CONFIG_PPC_BOOK3S_64 |
62 | struct hlist_node list_vpte_64k; | |
63 | #endif | |
c4befc58 | 64 | struct rcu_head rcu_head; |
5524a27d | 65 | u64 host_vpn; |
c4befc58 PM |
66 | u64 pfn; |
67 | ulong slot; | |
68 | struct kvmppc_pte pte; | |
c9029c34 | 69 | int pagesize; |
c4befc58 PM |
70 | }; |
71 | ||
e64fb7e2 SJS |
72 | /* |
73 | * Struct for a virtual core. | |
74 | * Note: entry_exit_map combines a bitmap of threads that have entered | |
75 | * in the bottom 8 bits and a bitmap of threads that have exited in the | |
76 | * next 8 bits. This is so that we can atomically set the entry bit | |
77 | * iff the exit map is 0 without taking a lock. | |
78 | */ | |
79 | struct kvmppc_vcore { | |
80 | int n_runnable; | |
81 | int num_threads; | |
82 | int entry_exit_map; | |
83 | int napping_threads; | |
84 | int first_vcpuid; | |
85 | u16 pcpu; | |
86 | u16 last_cpu; | |
87 | u8 vcore_state; | |
88 | u8 in_guest; | |
7b5f8272 | 89 | struct kvm_vcpu *runnable_threads[MAX_SMT_THREADS]; |
e64fb7e2 SJS |
90 | struct list_head preempt_list; |
91 | spinlock_t lock; | |
92 | struct swait_queue_head wq; | |
93 | spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */ | |
94 | u64 stolen_tb; | |
95 | u64 preempt_tb; | |
96 | struct kvm_vcpu *runner; | |
97 | struct kvm *kvm; | |
98 | u64 tb_offset; /* guest timebase - host timebase */ | |
57b8daa7 | 99 | u64 tb_offset_applied; /* timebase offset currently in force */ |
e64fb7e2 SJS |
100 | ulong lpcr; |
101 | u32 arch_compat; | |
102 | ulong pcr; | |
103 | ulong dpdes; /* doorbell state (POWER8) */ | |
88b02cf9 | 104 | ulong vtb; /* virtual timebase */ |
e64fb7e2 | 105 | ulong conferring_threads; |
0cda69dd | 106 | unsigned int halt_poll_ns; |
7aa15842 | 107 | atomic_t online_count; |
e64fb7e2 SJS |
108 | }; |
109 | ||
4e342025 | 110 | struct kvmppc_vcpu_book3s { |
4e342025 | 111 | struct kvmppc_sid_map sid_map[SID_MAP_NUM]; |
4e342025 AG |
112 | struct { |
113 | u64 esid; | |
114 | u64 vsid; | |
115 | } slb_shadow[64]; | |
116 | u8 slb_shadow_max; | |
4e342025 AG |
117 | struct kvmppc_bat ibat[8]; |
118 | struct kvmppc_bat dbat[8]; | |
119 | u64 hid[6]; | |
d6d549b2 | 120 | u64 gqr[8]; |
4e342025 | 121 | u64 sdr1; |
4e342025 AG |
122 | u64 hior; |
123 | u64 msr_mask; | |
88b02cf9 | 124 | u64 vtb; |
8b6db3bc AG |
125 | #ifdef CONFIG_PPC_BOOK3S_32 |
126 | u32 vsid_pool[VSID_POOL_SIZE]; | |
ffe36492 | 127 | u32 vsid_next; |
8b6db3bc | 128 | #else |
ffe36492 BH |
129 | u64 proto_vsid_first; |
130 | u64 proto_vsid_max; | |
131 | u64 proto_vsid_next; | |
8b6db3bc AG |
132 | #endif |
133 | int context_id[SID_CONTEXTS]; | |
c4befc58 | 134 | |
1022fc3d AG |
135 | bool hior_explicit; /* HIOR is set by ioctl, not PVR */ |
136 | ||
c4befc58 PM |
137 | struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE]; |
138 | struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG]; | |
139 | struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; | |
140 | struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG]; | |
a4a0f252 PM |
141 | #ifdef CONFIG_PPC_BOOK3S_64 |
142 | struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K]; | |
143 | #endif | |
c4befc58 PM |
144 | int hpte_cache_count; |
145 | spinlock_t mmu_lock; | |
4e342025 AG |
146 | }; |
147 | ||
c9029c34 PM |
148 | #define VSID_REAL 0x07ffffffffc00000ULL |
149 | #define VSID_BAT 0x07ffffffffb00000ULL | |
150 | #define VSID_64K 0x0800000000000000ULL | |
0f296829 | 151 | #define VSID_1T 0x1000000000000000ULL |
f7bc74e1 AG |
152 | #define VSID_REAL_DR 0x2000000000000000ULL |
153 | #define VSID_REAL_IR 0x4000000000000000ULL | |
5a1b419f | 154 | #define VSID_PR 0x8000000000000000ULL |
4e342025 | 155 | |
af7b4d10 | 156 | extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); |
4e342025 | 157 | extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); |
af7b4d10 | 158 | extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); |
4e342025 AG |
159 | extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); |
160 | extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); | |
161 | extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); | |
de56a948 | 162 | extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu); |
93b159b4 PM |
163 | extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte, |
164 | bool iswrite); | |
165 | extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); | |
4e342025 | 166 | extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); |
0f296829 | 167 | extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size); |
4e342025 | 168 | extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); |
697d3899 PM |
169 | extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run, |
170 | struct kvm_vcpu *vcpu, unsigned long addr, | |
171 | unsigned long status); | |
172 | extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, | |
173 | unsigned long slb_v, unsigned long valid); | |
5a319350 PM |
174 | extern int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu, |
175 | unsigned long gpa, gva_t ea, int is_store); | |
fef093be AG |
176 | |
177 | extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); | |
178 | extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu); | |
d78bca72 | 179 | extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte); |
fef093be AG |
180 | extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu); |
181 | extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu); | |
182 | extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte); | |
183 | extern int kvmppc_mmu_hpte_sysinit(void); | |
184 | extern void kvmppc_mmu_hpte_sysexit(void); | |
de56a948 | 185 | extern int kvmppc_mmu_hv_init(void); |
ae2113a4 | 186 | extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc); |
fef093be | 187 | |
5a319350 PM |
188 | extern int kvmppc_book3s_radix_page_fault(struct kvm_run *run, |
189 | struct kvm_vcpu *vcpu, | |
190 | unsigned long ea, unsigned long dsisr); | |
fd10be25 SJS |
191 | extern int kvmppc_mmu_walk_radix_tree(struct kvm_vcpu *vcpu, gva_t eaddr, |
192 | struct kvmppc_pte *gpte, u64 root, | |
193 | u64 *pte_ret_p); | |
9811c78e SJS |
194 | extern int kvmppc_mmu_radix_translate_table(struct kvm_vcpu *vcpu, gva_t eaddr, |
195 | struct kvmppc_pte *gpte, u64 table, | |
196 | int table_index, u64 *pte_ret_p); | |
9e04ba69 PM |
197 | extern int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, |
198 | struct kvmppc_pte *gpte, bool data, bool iswrite); | |
8cf531ed | 199 | extern void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa, |
c43c3a86 PM |
200 | unsigned int shift, |
201 | const struct kvm_memory_slot *memslot, | |
8cf531ed | 202 | unsigned int lpid); |
fd10be25 SJS |
203 | extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, pgd_t *pgtable, |
204 | bool writing, unsigned long gpa, | |
205 | unsigned int lpid); | |
206 | extern int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu, | |
207 | unsigned long gpa, | |
208 | struct kvm_memory_slot *memslot, | |
209 | bool writing, bool kvm_ro, | |
210 | pte_t *inserted_pte, unsigned int *levelp); | |
8cf4ecc0 | 211 | extern int kvmppc_init_vm_radix(struct kvm *kvm); |
5a319350 | 212 | extern void kvmppc_free_radix(struct kvm *kvm); |
fd10be25 SJS |
213 | extern void kvmppc_free_pgtable_radix(struct kvm *kvm, pgd_t *pgd, |
214 | unsigned int lpid); | |
5a319350 PM |
215 | extern int kvmppc_radix_init(void); |
216 | extern void kvmppc_radix_exit(void); | |
01756099 PM |
217 | extern int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, |
218 | unsigned long gfn); | |
219 | extern int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, | |
220 | unsigned long gfn); | |
221 | extern int kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, | |
222 | unsigned long gfn); | |
8f7b79b8 PM |
223 | extern long kvmppc_hv_get_dirty_log_radix(struct kvm *kvm, |
224 | struct kvm_memory_slot *memslot, unsigned long *map); | |
5af3e9d0 PM |
225 | extern void kvmppc_radix_flush_memslot(struct kvm *kvm, |
226 | const struct kvm_memory_slot *memslot); | |
8cf4ecc0 | 227 | extern int kvmhv_get_rmmu_info(struct kvm *kvm, struct kvm_ppc_rmmu_info *info); |
9e04ba69 | 228 | |
35c4a733 | 229 | /* XXX remove this export when load_last_inst() is generic */ |
5467a97d | 230 | extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); |
4e342025 | 231 | extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); |
bc5ad3f3 BH |
232 | extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu, |
233 | unsigned int vec); | |
de56a948 | 234 | extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags); |
533082ae | 235 | extern void kvmppc_trigger_fac_interrupt(struct kvm_vcpu *vcpu, ulong fac); |
e15a1137 AG |
236 | extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, |
237 | bool upper, u32 val); | |
aba3bd7f | 238 | extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); |
831317b6 | 239 | extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); |
ba049e93 DW |
240 | extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, |
241 | bool writing, bool *writable); | |
342d3db7 PM |
242 | extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, |
243 | unsigned long *rmap, long pte_index, int realmode); | |
c43c3a86 | 244 | extern void kvmppc_update_dirty_map(const struct kvm_memory_slot *memslot, |
e641a317 | 245 | unsigned long gfn, unsigned long psize); |
6f22bd32 | 246 | extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep, |
342d3db7 | 247 | unsigned long pte_index); |
6f22bd32 | 248 | void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep, |
55514893 | 249 | unsigned long pte_index); |
93e60249 PM |
250 | extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr, |
251 | unsigned long *nb_ret); | |
c35635ef PM |
252 | extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr, |
253 | unsigned long gpa, bool dirty); | |
7ed661bf PM |
254 | extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, |
255 | long pte_index, unsigned long pteh, unsigned long ptel, | |
256 | pgd_t *pgdir, bool realmode, unsigned long *idx_ret); | |
6b445ad4 PM |
257 | extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags, |
258 | unsigned long pte_index, unsigned long avpn, | |
259 | unsigned long *hpret); | |
8f7b79b8 | 260 | extern long kvmppc_hv_get_dirty_log_hpt(struct kvm *kvm, |
dfe49dbd | 261 | struct kvm_memory_slot *memslot, unsigned long *map); |
8f7b79b8 PM |
262 | extern void kvmppc_harvest_vpa_dirty(struct kvmppc_vpa *vpa, |
263 | struct kvm_memory_slot *memslot, | |
264 | unsigned long *map); | |
a0144e2a PM |
265 | extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, |
266 | unsigned long mask); | |
8e6afa36 | 267 | extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr); |
4e342025 | 268 | |
4bb3c7a0 PM |
269 | extern int kvmhv_p9_tm_emulation_early(struct kvm_vcpu *vcpu); |
270 | extern int kvmhv_p9_tm_emulation(struct kvm_vcpu *vcpu); | |
271 | extern void kvmhv_emulate_tm_rollback(struct kvm_vcpu *vcpu); | |
272 | ||
02143947 | 273 | extern void kvmppc_entry_trampoline(void); |
de56a948 | 274 | extern void kvmppc_hv_entry_trampoline(void); |
ca7f4203 AG |
275 | extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); |
276 | extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); | |
0254f074 | 277 | extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd); |
699a0ea0 | 278 | extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm); |
ae2113a4 PM |
279 | extern int kvmppc_hcall_impl_pr(unsigned long cmd); |
280 | extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd); | |
07ae5389 AG |
281 | extern void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu); |
282 | extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu); | |
8d2e2fc5 SG |
283 | |
284 | #ifdef CONFIG_PPC_TRANSACTIONAL_MEM | |
285 | void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu); | |
286 | void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu); | |
e32c53d1 | 287 | void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu); |
5706340a | 288 | void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu); |
8d2e2fc5 SG |
289 | #else |
290 | static inline void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu) {} | |
291 | static inline void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu) {} | |
e32c53d1 | 292 | static inline void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu) {} |
5706340a | 293 | static inline void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu) {} |
8d2e2fc5 SG |
294 | #endif |
295 | ||
8e3f5fc1 PM |
296 | long kvmhv_nested_init(void); |
297 | void kvmhv_nested_exit(void); | |
298 | void kvmhv_vm_nested_init(struct kvm *kvm); | |
299 | long kvmhv_set_partition_table(struct kvm_vcpu *vcpu); | |
300 | void kvmhv_set_ptbl_entry(unsigned int lpid, u64 dw0, u64 dw1); | |
301 | void kvmhv_release_all_nested(struct kvm *kvm); | |
360cae31 | 302 | long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu); |
e3b6b466 | 303 | long kvmhv_do_nested_tlbie(struct kvm_vcpu *vcpu); |
360cae31 PM |
304 | int kvmhv_run_single_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu, |
305 | u64 time_limit, unsigned long lpcr); | |
306 | void kvmhv_save_hv_regs(struct kvm_vcpu *vcpu, struct hv_guest_state *hr); | |
307 | void kvmhv_restore_hv_return_state(struct kvm_vcpu *vcpu, | |
308 | struct hv_guest_state *hr); | |
309 | long int kvmhv_nested_page_fault(struct kvm_vcpu *vcpu); | |
8e3f5fc1 | 310 | |
7284ca8a SG |
311 | void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac); |
312 | ||
644abbb2 | 313 | extern int kvm_irq_bypass; |
4e342025 AG |
314 | |
315 | static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) | |
316 | { | |
3ff95502 | 317 | return vcpu->arch.book3s; |
4e342025 AG |
318 | } |
319 | ||
de56a948 PM |
320 | /* Also add subarch specific defines */ |
321 | ||
322 | #ifdef CONFIG_KVM_BOOK3S_32_HANDLER | |
323 | #include <asm/kvm_book3s_32.h> | |
324 | #endif | |
325 | #ifdef CONFIG_KVM_BOOK3S_64_HANDLER | |
326 | #include <asm/kvm_book3s_64.h> | |
327 | #endif | |
328 | ||
c7f38f46 AG |
329 | static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) |
330 | { | |
1143a706 | 331 | vcpu->arch.regs.gpr[num] = val; |
c7f38f46 AG |
332 | } |
333 | ||
334 | static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) | |
335 | { | |
1143a706 | 336 | return vcpu->arch.regs.gpr[num]; |
c7f38f46 AG |
337 | } |
338 | ||
339 | static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) | |
340 | { | |
fd0944ba | 341 | vcpu->arch.regs.ccr = val; |
c7f38f46 AG |
342 | } |
343 | ||
344 | static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) | |
345 | { | |
fd0944ba | 346 | return vcpu->arch.regs.ccr; |
c7f38f46 AG |
347 | } |
348 | ||
c63517c2 | 349 | static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) |
c7f38f46 | 350 | { |
173c520a | 351 | vcpu->arch.regs.xer = val; |
c7f38f46 AG |
352 | } |
353 | ||
c63517c2 | 354 | static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu) |
c7f38f46 | 355 | { |
173c520a | 356 | return vcpu->arch.regs.xer; |
c7f38f46 AG |
357 | } |
358 | ||
359 | static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) | |
360 | { | |
173c520a | 361 | vcpu->arch.regs.ctr = val; |
c7f38f46 AG |
362 | } |
363 | ||
364 | static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) | |
365 | { | |
173c520a | 366 | return vcpu->arch.regs.ctr; |
c7f38f46 AG |
367 | } |
368 | ||
369 | static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) | |
370 | { | |
173c520a | 371 | vcpu->arch.regs.link = val; |
c7f38f46 AG |
372 | } |
373 | ||
374 | static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) | |
375 | { | |
173c520a | 376 | return vcpu->arch.regs.link; |
c7f38f46 AG |
377 | } |
378 | ||
379 | static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) | |
380 | { | |
173c520a | 381 | vcpu->arch.regs.nip = val; |
c7f38f46 AG |
382 | } |
383 | ||
384 | static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) | |
385 | { | |
173c520a | 386 | return vcpu->arch.regs.nip; |
c7f38f46 AG |
387 | } |
388 | ||
5deb8e7a | 389 | static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu); |
73601775 | 390 | static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu) |
c7f38f46 | 391 | { |
5deb8e7a | 392 | return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE); |
73601775 | 393 | } |
c7f38f46 | 394 | |
c7f38f46 AG |
395 | static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) |
396 | { | |
a2d56020 PM |
397 | return vcpu->arch.fault_dar; |
398 | } | |
399 | ||
e59d24e6 GK |
400 | static inline bool is_kvmppc_resume_guest(int r) |
401 | { | |
402 | return (r == RESUME_GUEST || r == RESUME_GUEST_NV); | |
403 | } | |
404 | ||
c12fb43c AG |
405 | static inline bool is_kvmppc_hv_enabled(struct kvm *kvm); |
406 | static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu) | |
407 | { | |
408 | /* Only PR KVM supports the magic page */ | |
409 | return !is_kvmppc_hv_enabled(vcpu->kvm); | |
410 | } | |
411 | ||
99342cf8 DG |
412 | extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu); |
413 | extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu); | |
414 | ||
ad0a048b AG |
415 | /* Magic register values loaded into r3 and r4 before the 'sc' assembly |
416 | * instruction for the OSI hypercalls */ | |
417 | #define OSI_SC_MAGIC_R3 0x113724FA | |
418 | #define OSI_SC_MAGIC_R4 0x77810F9B | |
419 | ||
4e342025 | 420 | #define INS_DCBZ 0x7c0007ec |
8c32a2ea BB |
421 | /* TO = 31 for unconditional trap */ |
422 | #define INS_TW 0x7fe00008 | |
4e342025 | 423 | |
c01e3f66 AG |
424 | #define SPLIT_HACK_MASK 0xff000000 |
425 | #define SPLIT_HACK_OFFS 0xfb000000 | |
426 | ||
1e175d2e SB |
427 | /* |
428 | * This packs a VCPU ID from the [0..KVM_MAX_VCPU_ID) space down to the | |
429 | * [0..KVM_MAX_VCPUS) space, using knowledge of the guest's core stride | |
430 | * (but not its actual threading mode, which is not available) to avoid | |
431 | * collisions. | |
432 | * | |
433 | * The implementation leaves VCPU IDs from the range [0..KVM_MAX_VCPUS) (block | |
434 | * 0) unchanged: if the guest is filling each VCORE completely then it will be | |
435 | * using consecutive IDs and it will fill the space without any packing. | |
436 | * | |
437 | * For higher VCPU IDs, the packed ID is based on the VCPU ID modulo | |
438 | * KVM_MAX_VCPUS (effectively masking off the top bits) and then an offset is | |
439 | * added to avoid collisions. | |
440 | * | |
441 | * VCPU IDs in the range [KVM_MAX_VCPUS..(KVM_MAX_VCPUS*2)) (block 1) are only | |
442 | * possible if the guest is leaving at least 1/2 of each VCORE empty, so IDs | |
443 | * can be safely packed into the second half of each VCORE by adding an offset | |
444 | * of (stride / 2). | |
445 | * | |
446 | * Similarly, if VCPU IDs in the range [(KVM_MAX_VCPUS*2)..(KVM_MAX_VCPUS*4)) | |
447 | * (blocks 2 and 3) are seen, the guest must be leaving at least 3/4 of each | |
448 | * VCORE empty so packed IDs can be offset by (stride / 4) and (stride * 3 / 4). | |
449 | * | |
450 | * Finally, VCPU IDs from blocks 5..7 will only be seen if the guest is using a | |
451 | * stride of 8 and 1 thread per core so the remaining offsets of 1, 5, 3 and 7 | |
452 | * must be free to use. | |
453 | * | |
454 | * (The offsets for each block are stored in block_offsets[], indexed by the | |
455 | * block number if the stride is 8. For cases where the guest's stride is less | |
456 | * than 8, we can re-use the block_offsets array by multiplying the block | |
457 | * number by (MAX_SMT_THREADS / stride) to reach the correct entry.) | |
458 | */ | |
459 | static inline u32 kvmppc_pack_vcpu_id(struct kvm *kvm, u32 id) | |
460 | { | |
461 | const int block_offsets[MAX_SMT_THREADS] = {0, 4, 2, 6, 1, 5, 3, 7}; | |
462 | int stride = kvm->arch.emul_smt_mode; | |
463 | int block = (id / KVM_MAX_VCPUS) * (MAX_SMT_THREADS / stride); | |
464 | u32 packed_id; | |
465 | ||
466 | if (WARN_ONCE(block >= MAX_SMT_THREADS, "VCPU ID too large to pack")) | |
467 | return 0; | |
468 | packed_id = (id % KVM_MAX_VCPUS) + block_offsets[block]; | |
469 | if (WARN_ONCE(packed_id >= KVM_MAX_VCPUS, "VCPU ID packing failed")) | |
470 | return 0; | |
471 | return packed_id; | |
472 | } | |
473 | ||
4e342025 | 474 | #endif /* __ASM_KVM_BOOK3S_H__ */ |