Commit | Line | Data |
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bbf45ba5 HB |
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 IBM Corp. 2008 | |
16 | * | |
17 | * Authors: Hollis Blanchard <hollisb@us.ibm.com> | |
18 | */ | |
19 | ||
20 | #ifndef __POWERPC_KVM_PPC_H__ | |
21 | #define __POWERPC_KVM_PPC_H__ | |
22 | ||
23 | /* This file exists just so we can dereference kvm_vcpu, avoiding nested header | |
24 | * dependencies. */ | |
25 | ||
26 | #include <linux/mutex.h> | |
27 | #include <linux/timer.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/kvm_types.h> | |
30 | #include <linux/kvm_host.h> | |
a136a8bd | 31 | #include <linux/bug.h> |
1c0006d8 AG |
32 | #ifdef CONFIG_PPC_BOOK3S |
33 | #include <asm/kvm_book3s.h> | |
c7f38f46 AG |
34 | #else |
35 | #include <asm/kvm_booke.h> | |
1c0006d8 | 36 | #endif |
371fefd6 PM |
37 | #ifdef CONFIG_KVM_BOOK3S_64_HANDLER |
38 | #include <asm/paca.h> | |
39 | #endif | |
bbf45ba5 | 40 | |
bbf45ba5 HB |
41 | enum emulation_result { |
42 | EMULATE_DONE, /* no further processing */ | |
43 | EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ | |
44 | EMULATE_DO_DCR, /* kvm_run filled with DCR request */ | |
45 | EMULATE_FAIL, /* can't emulate this instruction */ | |
37f5bca6 | 46 | EMULATE_AGAIN, /* something went wrong. go again */ |
c402a3f4 | 47 | EMULATE_EXIT_USER, /* emulation requires exit to user-space */ |
bbf45ba5 HB |
48 | }; |
49 | ||
df6909e5 | 50 | extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); |
bbf45ba5 | 51 | extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); |
29eb61bc | 52 | extern void kvmppc_handler_highmem(void); |
bbf45ba5 HB |
53 | |
54 | extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); | |
55 | extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, | |
56 | unsigned int rt, unsigned int bytes, | |
57 | int is_bigendian); | |
3587d534 AG |
58 | extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, |
59 | unsigned int rt, unsigned int bytes, | |
60 | int is_bigendian); | |
bbf45ba5 | 61 | extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, |
b104d066 | 62 | u64 val, unsigned int bytes, int is_bigendian); |
bbf45ba5 HB |
63 | |
64 | extern int kvmppc_emulate_instruction(struct kvm_run *run, | |
65 | struct kvm_vcpu *vcpu); | |
ce263d70 | 66 | extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); |
75f74f0d | 67 | extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); |
5ce941ee | 68 | extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); |
dfd4d47e | 69 | extern void kvmppc_decrementer_func(unsigned long data); |
af8f38b3 | 70 | extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); |
f61c94bb BB |
71 | extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu); |
72 | extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu); | |
bbf45ba5 | 73 | |
ecc0981f HB |
74 | /* Core-specific hooks */ |
75 | ||
89168618 | 76 | extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, |
7924bd41 | 77 | unsigned int gtlb_idx); |
bbf45ba5 | 78 | extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); |
49dd2c49 | 79 | extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); |
ecc0981f | 80 | extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); |
9cc5e953 | 81 | extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu); |
fa86b8dd HB |
82 | extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); |
83 | extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); | |
be8d1cae HB |
84 | extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, |
85 | gva_t eaddr); | |
b52a638c HB |
86 | extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); |
87 | extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); | |
9dd921cf | 88 | |
db93f574 HB |
89 | extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, |
90 | unsigned int id); | |
91 | extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); | |
5cbb5106 | 92 | extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); |
9dd921cf | 93 | extern int kvmppc_core_check_processor_compat(void); |
5cbb5106 HB |
94 | extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, |
95 | struct kvm_translation *tr); | |
9dd921cf HB |
96 | |
97 | extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); | |
98 | extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); | |
99 | ||
a8e4ef84 | 100 | extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu); |
9dd921cf | 101 | extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); |
25a8a02d | 102 | extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); |
9dd921cf | 103 | extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); |
7706664d | 104 | extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); |
9dd921cf HB |
105 | extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, |
106 | struct kvm_interrupt *irq); | |
4fe27d2a | 107 | extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu); |
862d31f7 | 108 | extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu); |
9dd921cf | 109 | |
75f74f0d HB |
110 | extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, |
111 | unsigned int op, int *advance); | |
54771e62 AG |
112 | extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, |
113 | ulong val); | |
114 | extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, | |
115 | ulong *val); | |
7c973a2e | 116 | extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu); |
75f74f0d | 117 | |
db93f574 HB |
118 | extern int kvmppc_booke_init(void); |
119 | extern void kvmppc_booke_exit(void); | |
120 | ||
c30f8a6c | 121 | extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); |
2a342ed5 | 122 | extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); |
a4cd8b23 | 123 | extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); |
c30f8a6c | 124 | |
32fad281 PM |
125 | extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp); |
126 | extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp); | |
de56a948 PM |
127 | extern void kvmppc_free_hpt(struct kvm *kvm); |
128 | extern long kvmppc_prepare_vrma(struct kvm *kvm, | |
129 | struct kvm_userspace_memory_region *mem); | |
c77162de | 130 | extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, |
da9d1d7f | 131 | struct kvm_memory_slot *memslot, unsigned long porder); |
a8606e20 | 132 | extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); |
54738c09 DG |
133 | extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, |
134 | struct kvm_create_spapr_tce *args); | |
f31e65e1 BH |
135 | extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, |
136 | unsigned long ioba, unsigned long tce); | |
aa04b4cc PM |
137 | extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm, |
138 | struct kvm_allocate_rma *rma); | |
b4e70611 AG |
139 | extern struct kvmppc_linear_info *kvm_alloc_rma(void); |
140 | extern void kvm_release_rma(struct kvmppc_linear_info *ri); | |
d2a1b483 AG |
141 | extern struct kvmppc_linear_info *kvm_alloc_hpt(void); |
142 | extern void kvm_release_hpt(struct kvmppc_linear_info *li); | |
f9e0554d PM |
143 | extern int kvmppc_core_init_vm(struct kvm *kvm); |
144 | extern void kvmppc_core_destroy_vm(struct kvm *kvm); | |
a66b48c3 PM |
145 | extern void kvmppc_core_free_memslot(struct kvm_memory_slot *free, |
146 | struct kvm_memory_slot *dont); | |
147 | extern int kvmppc_core_create_memslot(struct kvm_memory_slot *slot, | |
148 | unsigned long npages); | |
f9e0554d | 149 | extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, |
a66b48c3 | 150 | struct kvm_memory_slot *memslot, |
f9e0554d PM |
151 | struct kvm_userspace_memory_region *mem); |
152 | extern void kvmppc_core_commit_memory_region(struct kvm *kvm, | |
dfe49dbd | 153 | struct kvm_userspace_memory_region *mem, |
8482644a | 154 | const struct kvm_memory_slot *old); |
5b74716e BH |
155 | extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, |
156 | struct kvm_ppc_smmu_info *info); | |
dfe49dbd PM |
157 | extern void kvmppc_core_flush_memslot(struct kvm *kvm, |
158 | struct kvm_memory_slot *memslot); | |
f9e0554d | 159 | |
d30f6e48 SW |
160 | extern int kvmppc_bookehv_init(void); |
161 | extern void kvmppc_bookehv_exit(void); | |
162 | ||
03d25c5b AG |
163 | extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu); |
164 | ||
a2932923 PM |
165 | extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *); |
166 | ||
5df554ad SW |
167 | int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq); |
168 | ||
0564ee8a AG |
169 | /* |
170 | * Cuts out inst bits with ordering according to spec. | |
171 | * That means the leftmost bit is zero. All given bits are included. | |
172 | */ | |
173 | static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) | |
174 | { | |
175 | u32 r; | |
176 | u32 mask; | |
177 | ||
178 | BUG_ON(msb > lsb); | |
179 | ||
180 | mask = (1 << (lsb - msb + 1)) - 1; | |
181 | r = (inst >> (63 - lsb)) & mask; | |
182 | ||
183 | return r; | |
184 | } | |
185 | ||
186 | /* | |
187 | * Replaces inst bits with ordering according to spec. | |
188 | */ | |
189 | static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) | |
190 | { | |
191 | u32 r; | |
192 | u32 mask; | |
193 | ||
194 | BUG_ON(msb > lsb); | |
195 | ||
196 | mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); | |
197 | r = (inst & ~mask) | ((value << (63 - lsb)) & mask); | |
198 | ||
199 | return r; | |
200 | } | |
201 | ||
a136a8bd PM |
202 | union kvmppc_one_reg { |
203 | u32 wval; | |
204 | u64 dval; | |
a8bd19ef PM |
205 | vector128 vval; |
206 | u64 vsxval[2]; | |
55b665b0 PM |
207 | struct { |
208 | u64 addr; | |
209 | u64 length; | |
210 | } vpaval; | |
a136a8bd PM |
211 | }; |
212 | ||
213 | #define one_reg_size(id) \ | |
214 | (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) | |
215 | ||
216 | #define get_reg_val(id, reg) ({ \ | |
217 | union kvmppc_one_reg __u; \ | |
218 | switch (one_reg_size(id)) { \ | |
219 | case 4: __u.wval = (reg); break; \ | |
220 | case 8: __u.dval = (reg); break; \ | |
221 | default: BUG(); \ | |
222 | } \ | |
223 | __u; \ | |
224 | }) | |
225 | ||
226 | ||
227 | #define set_reg_val(id, val) ({ \ | |
228 | u64 __v; \ | |
229 | switch (one_reg_size(id)) { \ | |
230 | case 4: __v = (val).wval; break; \ | |
231 | case 8: __v = (val).dval; break; \ | |
232 | default: BUG(); \ | |
233 | } \ | |
234 | __v; \ | |
235 | }) | |
236 | ||
5ce941ee SW |
237 | void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); |
238 | int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); | |
239 | ||
240 | void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); | |
241 | int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); | |
242 | ||
31f3438e PM |
243 | int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); |
244 | int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); | |
a136a8bd PM |
245 | int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); |
246 | int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); | |
31f3438e | 247 | |
5ce941ee SW |
248 | void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); |
249 | ||
5df554ad | 250 | struct openpic; |
5df554ad | 251 | |
371fefd6 PM |
252 | #ifdef CONFIG_KVM_BOOK3S_64_HV |
253 | static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) | |
254 | { | |
255 | paca[cpu].kvm_hstate.xics_phys = addr; | |
256 | } | |
aa04b4cc | 257 | |
b4e70611 | 258 | extern void kvm_linear_init(void); |
aa04b4cc | 259 | |
371fefd6 PM |
260 | #else |
261 | static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) | |
262 | {} | |
aa04b4cc | 263 | |
b4e70611 | 264 | static inline void kvm_linear_init(void) |
aa04b4cc | 265 | {} |
371fefd6 PM |
266 | #endif |
267 | ||
1c810636 AG |
268 | static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr) |
269 | { | |
270 | #ifdef CONFIG_KVM_BOOKE_HV | |
271 | mtspr(SPRN_GEPR, epr); | |
272 | #elif defined(CONFIG_BOOKE) | |
273 | vcpu->arch.epr = epr; | |
274 | #endif | |
275 | } | |
276 | ||
5df554ad SW |
277 | #ifdef CONFIG_KVM_MPIC |
278 | ||
279 | void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu); | |
eb1e4f43 SW |
280 | int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, |
281 | u32 cpu); | |
282 | void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu); | |
5df554ad SW |
283 | |
284 | #else | |
285 | ||
286 | static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu) | |
287 | { | |
288 | } | |
289 | ||
eb1e4f43 SW |
290 | static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, |
291 | struct kvm_vcpu *vcpu, u32 cpu) | |
292 | { | |
293 | return -EINVAL; | |
294 | } | |
295 | ||
296 | static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, | |
297 | struct kvm_vcpu *vcpu) | |
298 | { | |
299 | } | |
300 | ||
5df554ad SW |
301 | #endif /* CONFIG_KVM_MPIC */ |
302 | ||
dc83b8bc SW |
303 | int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, |
304 | struct kvm_config_tlb *cfg); | |
305 | int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, | |
306 | struct kvm_dirty_tlb *cfg); | |
307 | ||
043cc4d7 SW |
308 | long kvmppc_alloc_lpid(void); |
309 | void kvmppc_claim_lpid(long lpid); | |
310 | void kvmppc_free_lpid(long lpid); | |
311 | void kvmppc_init_lpid(unsigned long nr_lpids); | |
312 | ||
249ba1ee AG |
313 | static inline void kvmppc_mmu_flush_icache(pfn_t pfn) |
314 | { | |
249ba1ee | 315 | struct page *page; |
adccf65c BB |
316 | /* |
317 | * We can only access pages that the kernel maps | |
318 | * as memory. Bail out for unmapped ones. | |
319 | */ | |
320 | if (!pfn_valid(pfn)) | |
321 | return; | |
322 | ||
323 | /* Clear i-cache for new pages */ | |
249ba1ee AG |
324 | page = pfn_to_page(pfn); |
325 | if (!test_bit(PG_arch_1, &page->flags)) { | |
326 | flush_dcache_icache_page(page); | |
327 | set_bit(PG_arch_1, &page->flags); | |
328 | } | |
329 | } | |
330 | ||
bd2be683 AG |
331 | /* Please call after prepare_to_enter. This function puts the lazy ee state |
332 | back to normal mode, without actually enabling interrupts. */ | |
333 | static inline void kvmppc_lazy_ee_enable(void) | |
334 | { | |
335 | #ifdef CONFIG_PPC64 | |
336 | /* Only need to enable IRQs by hard enabling them after this */ | |
337 | local_paca->irq_happened = 0; | |
338 | local_paca->soft_enabled = 1; | |
339 | #endif | |
340 | } | |
249ba1ee | 341 | |
7cdd7a95 MC |
342 | static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb) |
343 | { | |
344 | ulong ea; | |
8823a8fd | 345 | ulong msr_64bit = 0; |
7cdd7a95 MC |
346 | |
347 | ea = kvmppc_get_gpr(vcpu, rb); | |
348 | if (ra) | |
349 | ea += kvmppc_get_gpr(vcpu, ra); | |
350 | ||
8823a8fd MC |
351 | #if defined(CONFIG_PPC_BOOK3E_64) |
352 | msr_64bit = MSR_CM; | |
353 | #elif defined(CONFIG_PPC_BOOK3S_64) | |
354 | msr_64bit = MSR_SF; | |
355 | #endif | |
356 | ||
357 | if (!(vcpu->arch.shared->msr & msr_64bit)) | |
358 | ea = (uint32_t)ea; | |
359 | ||
7cdd7a95 MC |
360 | return ea; |
361 | } | |
362 | ||
bbf45ba5 | 363 | #endif /* __POWERPC_KVM_PPC_H__ */ |