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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 | ||
4e342025 | 72 | struct kvmppc_vcpu_book3s { |
4e342025 | 73 | struct kvmppc_sid_map sid_map[SID_MAP_NUM]; |
4e342025 AG |
74 | struct { |
75 | u64 esid; | |
76 | u64 vsid; | |
77 | } slb_shadow[64]; | |
78 | u8 slb_shadow_max; | |
4e342025 AG |
79 | struct kvmppc_bat ibat[8]; |
80 | struct kvmppc_bat dbat[8]; | |
81 | u64 hid[6]; | |
d6d549b2 | 82 | u64 gqr[8]; |
4e342025 | 83 | u64 sdr1; |
4e342025 AG |
84 | u64 hior; |
85 | u64 msr_mask; | |
8b6db3bc AG |
86 | #ifdef CONFIG_PPC_BOOK3S_32 |
87 | u32 vsid_pool[VSID_POOL_SIZE]; | |
ffe36492 | 88 | u32 vsid_next; |
8b6db3bc | 89 | #else |
ffe36492 BH |
90 | u64 proto_vsid_first; |
91 | u64 proto_vsid_max; | |
92 | u64 proto_vsid_next; | |
8b6db3bc AG |
93 | #endif |
94 | int context_id[SID_CONTEXTS]; | |
c4befc58 | 95 | |
1022fc3d AG |
96 | bool hior_explicit; /* HIOR is set by ioctl, not PVR */ |
97 | ||
c4befc58 PM |
98 | struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE]; |
99 | struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG]; | |
100 | struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; | |
101 | struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG]; | |
a4a0f252 PM |
102 | #ifdef CONFIG_PPC_BOOK3S_64 |
103 | struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K]; | |
104 | #endif | |
c4befc58 PM |
105 | int hpte_cache_count; |
106 | spinlock_t mmu_lock; | |
4e342025 AG |
107 | }; |
108 | ||
109 | #define CONTEXT_HOST 0 | |
110 | #define CONTEXT_GUEST 1 | |
111 | #define CONTEXT_GUEST_END 2 | |
112 | ||
c9029c34 PM |
113 | #define VSID_REAL 0x07ffffffffc00000ULL |
114 | #define VSID_BAT 0x07ffffffffb00000ULL | |
115 | #define VSID_64K 0x0800000000000000ULL | |
0f296829 | 116 | #define VSID_1T 0x1000000000000000ULL |
f7bc74e1 AG |
117 | #define VSID_REAL_DR 0x2000000000000000ULL |
118 | #define VSID_REAL_IR 0x4000000000000000ULL | |
5a1b419f | 119 | #define VSID_PR 0x8000000000000000ULL |
4e342025 | 120 | |
af7b4d10 | 121 | extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); |
4e342025 | 122 | extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); |
af7b4d10 | 123 | extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); |
4e342025 AG |
124 | extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); |
125 | extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); | |
126 | extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); | |
de56a948 | 127 | extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu); |
93b159b4 PM |
128 | extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte, |
129 | bool iswrite); | |
130 | extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); | |
4e342025 | 131 | extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); |
0f296829 | 132 | extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size); |
4e342025 | 133 | extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); |
697d3899 PM |
134 | extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run, |
135 | struct kvm_vcpu *vcpu, unsigned long addr, | |
136 | unsigned long status); | |
137 | extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, | |
138 | unsigned long slb_v, unsigned long valid); | |
fef093be AG |
139 | |
140 | extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); | |
141 | extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu); | |
d78bca72 | 142 | extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte); |
fef093be AG |
143 | extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu); |
144 | extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu); | |
145 | extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte); | |
146 | extern int kvmppc_mmu_hpte_sysinit(void); | |
147 | extern void kvmppc_mmu_hpte_sysexit(void); | |
de56a948 | 148 | extern int kvmppc_mmu_hv_init(void); |
ae2113a4 | 149 | extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc); |
fef093be | 150 | |
5467a97d AG |
151 | extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); |
152 | extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); | |
4e342025 | 153 | extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); |
bc5ad3f3 BH |
154 | extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu, |
155 | unsigned int vec); | |
de56a948 | 156 | extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags); |
e15a1137 AG |
157 | extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, |
158 | bool upper, u32 val); | |
aba3bd7f | 159 | extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); |
831317b6 | 160 | extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); |
93b159b4 PM |
161 | extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing, |
162 | bool *writable); | |
342d3db7 PM |
163 | extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, |
164 | unsigned long *rmap, long pte_index, int realmode); | |
6f22bd32 | 165 | extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep, |
342d3db7 | 166 | unsigned long pte_index); |
6f22bd32 | 167 | void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep, |
55514893 | 168 | unsigned long pte_index); |
93e60249 PM |
169 | extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr, |
170 | unsigned long *nb_ret); | |
c35635ef PM |
171 | extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr, |
172 | unsigned long gpa, bool dirty); | |
c77162de PM |
173 | extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, |
174 | long pte_index, unsigned long pteh, unsigned long ptel); | |
7ed661bf PM |
175 | extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, |
176 | long pte_index, unsigned long pteh, unsigned long ptel, | |
177 | pgd_t *pgdir, bool realmode, unsigned long *idx_ret); | |
6b445ad4 PM |
178 | extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags, |
179 | unsigned long pte_index, unsigned long avpn, | |
180 | unsigned long *hpret); | |
82ed3616 | 181 | extern long kvmppc_hv_get_dirty_log(struct kvm *kvm, |
dfe49dbd | 182 | struct kvm_memory_slot *memslot, unsigned long *map); |
a0144e2a PM |
183 | extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, |
184 | unsigned long mask); | |
4e342025 | 185 | |
02143947 | 186 | extern void kvmppc_entry_trampoline(void); |
de56a948 | 187 | extern void kvmppc_hv_entry_trampoline(void); |
ca7f4203 AG |
188 | extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); |
189 | extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); | |
0254f074 | 190 | extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd); |
699a0ea0 | 191 | extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm); |
ae2113a4 PM |
192 | extern int kvmppc_hcall_impl_pr(unsigned long cmd); |
193 | extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd); | |
c9dad7f9 AG |
194 | extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu, |
195 | struct kvm_vcpu *vcpu); | |
196 | extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, | |
197 | struct kvmppc_book3s_shadow_vcpu *svcpu); | |
4e342025 AG |
198 | |
199 | static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) | |
200 | { | |
3ff95502 | 201 | return vcpu->arch.book3s; |
4e342025 AG |
202 | } |
203 | ||
de56a948 PM |
204 | /* Also add subarch specific defines */ |
205 | ||
206 | #ifdef CONFIG_KVM_BOOK3S_32_HANDLER | |
207 | #include <asm/kvm_book3s_32.h> | |
208 | #endif | |
209 | #ifdef CONFIG_KVM_BOOK3S_64_HANDLER | |
210 | #include <asm/kvm_book3s_64.h> | |
211 | #endif | |
212 | ||
c7f38f46 AG |
213 | static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) |
214 | { | |
a2d56020 | 215 | vcpu->arch.gpr[num] = val; |
c7f38f46 AG |
216 | } |
217 | ||
218 | static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) | |
219 | { | |
a2d56020 | 220 | return vcpu->arch.gpr[num]; |
c7f38f46 AG |
221 | } |
222 | ||
223 | static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) | |
224 | { | |
a2d56020 | 225 | vcpu->arch.cr = val; |
c7f38f46 AG |
226 | } |
227 | ||
228 | static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) | |
229 | { | |
a2d56020 | 230 | return vcpu->arch.cr; |
c7f38f46 AG |
231 | } |
232 | ||
233 | static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) | |
234 | { | |
a2d56020 | 235 | vcpu->arch.xer = val; |
c7f38f46 AG |
236 | } |
237 | ||
238 | static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) | |
239 | { | |
a2d56020 | 240 | return vcpu->arch.xer; |
c7f38f46 AG |
241 | } |
242 | ||
243 | static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) | |
244 | { | |
a2d56020 | 245 | vcpu->arch.ctr = val; |
c7f38f46 AG |
246 | } |
247 | ||
248 | static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) | |
249 | { | |
a2d56020 | 250 | return vcpu->arch.ctr; |
c7f38f46 AG |
251 | } |
252 | ||
253 | static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) | |
254 | { | |
a2d56020 | 255 | vcpu->arch.lr = val; |
c7f38f46 AG |
256 | } |
257 | ||
258 | static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) | |
259 | { | |
a2d56020 | 260 | return vcpu->arch.lr; |
c7f38f46 AG |
261 | } |
262 | ||
263 | static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) | |
264 | { | |
a2d56020 | 265 | vcpu->arch.pc = val; |
c7f38f46 AG |
266 | } |
267 | ||
268 | static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) | |
269 | { | |
a2d56020 | 270 | return vcpu->arch.pc; |
c7f38f46 AG |
271 | } |
272 | ||
5deb8e7a | 273 | static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu); |
73601775 | 274 | static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu) |
c7f38f46 | 275 | { |
5deb8e7a | 276 | return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE); |
73601775 | 277 | } |
c7f38f46 | 278 | |
7a8ff56b | 279 | static inline u32 kvmppc_get_last_inst_internal(struct kvm_vcpu *vcpu, ulong pc) |
c7f38f46 | 280 | { |
c7f38f46 AG |
281 | /* Load the instruction manually if it failed to do so in the |
282 | * exit path */ | |
a2d56020 PM |
283 | if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) |
284 | kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false); | |
c7f38f46 | 285 | |
73601775 CLG |
286 | return kvmppc_need_byteswap(vcpu) ? swab32(vcpu->arch.last_inst) : |
287 | vcpu->arch.last_inst; | |
c7f38f46 AG |
288 | } |
289 | ||
7a8ff56b AG |
290 | static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) |
291 | { | |
292 | return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu)); | |
c7f38f46 AG |
293 | } |
294 | ||
8b23de29 PM |
295 | /* |
296 | * Like kvmppc_get_last_inst(), but for fetching a sc instruction. | |
297 | * Because the sc instruction sets SRR0 to point to the following | |
298 | * instruction, we have to fetch from pc - 4. | |
299 | */ | |
300 | static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu) | |
301 | { | |
7a8ff56b | 302 | return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu) - 4); |
8b23de29 PM |
303 | } |
304 | ||
c7f38f46 AG |
305 | static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) |
306 | { | |
a2d56020 PM |
307 | return vcpu->arch.fault_dar; |
308 | } | |
309 | ||
e59d24e6 GK |
310 | static inline bool is_kvmppc_resume_guest(int r) |
311 | { | |
312 | return (r == RESUME_GUEST || r == RESUME_GUEST_NV); | |
313 | } | |
314 | ||
ad0a048b AG |
315 | /* Magic register values loaded into r3 and r4 before the 'sc' assembly |
316 | * instruction for the OSI hypercalls */ | |
317 | #define OSI_SC_MAGIC_R3 0x113724FA | |
318 | #define OSI_SC_MAGIC_R4 0x77810F9B | |
319 | ||
4e342025 | 320 | #define INS_DCBZ 0x7c0007ec |
8c32a2ea BB |
321 | /* TO = 31 for unconditional trap */ |
322 | #define INS_TW 0x7fe00008 | |
4e342025 | 323 | |
043cc4d7 SW |
324 | /* LPIDs we support with this build -- runtime limit may be lower */ |
325 | #define KVMPPC_NR_LPIDS (LPID_RSVD + 1) | |
326 | ||
c01e3f66 AG |
327 | #define SPLIT_HACK_MASK 0xff000000 |
328 | #define SPLIT_HACK_OFFS 0xfb000000 | |
329 | ||
4e342025 | 330 | #endif /* __ASM_KVM_BOOK3S_H__ */ |