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> 25 #include <asm/kvm_book3s_asm.h> 26 27 struct kvmppc_bat { 28 u64 raw; 29 u32 bepi; 30 u32 bepi_mask; 31 u32 brpn; 32 u8 wimg; 33 u8 pp; 34 bool vs : 1; 35 bool vp : 1; 36 }; 37 38 struct kvmppc_sid_map { 39 u64 guest_vsid; 40 u64 guest_esid; 41 u64 host_vsid; 42 bool valid : 1; 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 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 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; 61 #ifdef CONFIG_PPC_BOOK3S_64 62 struct hlist_node list_vpte_64k; 63 #endif 64 struct rcu_head rcu_head; 65 u64 host_vpn; 66 u64 pfn; 67 ulong slot; 68 struct kvmppc_pte pte; 69 int pagesize; 70 }; 71 72 struct kvmppc_vcpu_book3s { 73 struct kvmppc_sid_map sid_map[SID_MAP_NUM]; 74 struct { 75 u64 esid; 76 u64 vsid; 77 } slb_shadow[64]; 78 u8 slb_shadow_max; 79 struct kvmppc_bat ibat[8]; 80 struct kvmppc_bat dbat[8]; 81 u64 hid[6]; 82 u64 gqr[8]; 83 u64 sdr1; 84 u64 hior; 85 u64 msr_mask; 86 #ifdef CONFIG_PPC_BOOK3S_32 87 u32 vsid_pool[VSID_POOL_SIZE]; 88 u32 vsid_next; 89 #else 90 u64 proto_vsid_first; 91 u64 proto_vsid_max; 92 u64 proto_vsid_next; 93 #endif 94 int context_id[SID_CONTEXTS]; 95 96 bool hior_explicit; /* HIOR is set by ioctl, not PVR */ 97 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]; 102 #ifdef CONFIG_PPC_BOOK3S_64 103 struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K]; 104 #endif 105 int hpte_cache_count; 106 spinlock_t mmu_lock; 107 }; 108 109 #define VSID_REAL 0x07ffffffffc00000ULL 110 #define VSID_BAT 0x07ffffffffb00000ULL 111 #define VSID_64K 0x0800000000000000ULL 112 #define VSID_1T 0x1000000000000000ULL 113 #define VSID_REAL_DR 0x2000000000000000ULL 114 #define VSID_REAL_IR 0x4000000000000000ULL 115 #define VSID_PR 0x8000000000000000ULL 116 117 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); 118 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); 119 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); 120 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); 121 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); 122 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); 123 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu); 124 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte, 125 bool iswrite); 126 extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); 127 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); 128 extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size); 129 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); 130 extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run, 131 struct kvm_vcpu *vcpu, unsigned long addr, 132 unsigned long status); 133 extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, 134 unsigned long slb_v, unsigned long valid); 135 136 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 137 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu); 138 extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte); 139 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu); 140 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu); 141 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte); 142 extern int kvmppc_mmu_hpte_sysinit(void); 143 extern void kvmppc_mmu_hpte_sysexit(void); 144 extern int kvmppc_mmu_hv_init(void); 145 extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc); 146 147 /* XXX remove this export when load_last_inst() is generic */ 148 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 149 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); 150 extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu, 151 unsigned int vec); 152 extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags); 153 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, 154 bool upper, u32 val); 155 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); 156 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); 157 extern pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing, 158 bool *writable); 159 extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, 160 unsigned long *rmap, long pte_index, int realmode); 161 extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep, 162 unsigned long pte_index); 163 void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep, 164 unsigned long pte_index); 165 extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr, 166 unsigned long *nb_ret); 167 extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr, 168 unsigned long gpa, bool dirty); 169 extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, 170 long pte_index, unsigned long pteh, unsigned long ptel, 171 pgd_t *pgdir, bool realmode, unsigned long *idx_ret); 172 extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags, 173 unsigned long pte_index, unsigned long avpn, 174 unsigned long *hpret); 175 extern long kvmppc_hv_get_dirty_log(struct kvm *kvm, 176 struct kvm_memory_slot *memslot, unsigned long *map); 177 extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, 178 unsigned long mask); 179 extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr); 180 181 extern void kvmppc_entry_trampoline(void); 182 extern void kvmppc_hv_entry_trampoline(void); 183 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); 184 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); 185 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd); 186 extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm); 187 extern int kvmppc_hcall_impl_pr(unsigned long cmd); 188 extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd); 189 extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu, 190 struct kvm_vcpu *vcpu); 191 extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, 192 struct kvmppc_book3s_shadow_vcpu *svcpu); 193 194 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) 195 { 196 return vcpu->arch.book3s; 197 } 198 199 /* Also add subarch specific defines */ 200 201 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER 202 #include <asm/kvm_book3s_32.h> 203 #endif 204 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER 205 #include <asm/kvm_book3s_64.h> 206 #endif 207 208 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 209 { 210 vcpu->arch.gpr[num] = val; 211 } 212 213 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 214 { 215 return vcpu->arch.gpr[num]; 216 } 217 218 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 219 { 220 vcpu->arch.cr = val; 221 } 222 223 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 224 { 225 return vcpu->arch.cr; 226 } 227 228 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 229 { 230 vcpu->arch.xer = val; 231 } 232 233 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 234 { 235 return vcpu->arch.xer; 236 } 237 238 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) 239 { 240 vcpu->arch.ctr = val; 241 } 242 243 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) 244 { 245 return vcpu->arch.ctr; 246 } 247 248 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) 249 { 250 vcpu->arch.lr = val; 251 } 252 253 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) 254 { 255 return vcpu->arch.lr; 256 } 257 258 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) 259 { 260 vcpu->arch.pc = val; 261 } 262 263 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) 264 { 265 return vcpu->arch.pc; 266 } 267 268 static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu); 269 static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu) 270 { 271 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE); 272 } 273 274 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) 275 { 276 return vcpu->arch.fault_dar; 277 } 278 279 static inline bool is_kvmppc_resume_guest(int r) 280 { 281 return (r == RESUME_GUEST || r == RESUME_GUEST_NV); 282 } 283 284 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm); 285 static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu) 286 { 287 /* Only PR KVM supports the magic page */ 288 return !is_kvmppc_hv_enabled(vcpu->kvm); 289 } 290 291 extern int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu); 292 extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu); 293 294 /* Magic register values loaded into r3 and r4 before the 'sc' assembly 295 * instruction for the OSI hypercalls */ 296 #define OSI_SC_MAGIC_R3 0x113724FA 297 #define OSI_SC_MAGIC_R4 0x77810F9B 298 299 #define INS_DCBZ 0x7c0007ec 300 /* TO = 31 for unconditional trap */ 301 #define INS_TW 0x7fe00008 302 303 /* LPIDs we support with this build -- runtime limit may be lower */ 304 #define KVMPPC_NR_LPIDS (LPID_RSVD + 1) 305 306 #define SPLIT_HACK_MASK 0xff000000 307 #define SPLIT_HACK_OFFS 0xfb000000 308 309 #endif /* __ASM_KVM_BOOK3S_H__ */ 310