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 CONTEXT_HOST 0 110 #define CONTEXT_GUEST 1 111 #define CONTEXT_GUEST_END 2 112 113 #define VSID_REAL 0x07ffffffffc00000ULL 114 #define VSID_BAT 0x07ffffffffb00000ULL 115 #define VSID_64K 0x0800000000000000ULL 116 #define VSID_1T 0x1000000000000000ULL 117 #define VSID_REAL_DR 0x2000000000000000ULL 118 #define VSID_REAL_IR 0x4000000000000000ULL 119 #define VSID_PR 0x8000000000000000ULL 120 121 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); 122 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); 123 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); 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); 127 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu); 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); 131 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); 132 extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size); 133 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); 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); 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); 142 extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte); 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); 148 extern int kvmppc_mmu_hv_init(void); 149 extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc); 150 151 /* XXX remove this export when load_last_inst() is generic */ 152 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 153 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); 154 extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu, 155 unsigned int vec); 156 extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags); 157 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, 158 bool upper, u32 val); 159 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); 160 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); 161 extern pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing, 162 bool *writable); 163 extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, 164 unsigned long *rmap, long pte_index, int realmode); 165 extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep, 166 unsigned long pte_index); 167 void kvmppc_clear_ref_hpte(struct kvm *kvm, __be64 *hptep, 168 unsigned long pte_index); 169 extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr, 170 unsigned long *nb_ret); 171 extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr, 172 unsigned long gpa, bool dirty); 173 extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, 174 long pte_index, unsigned long pteh, unsigned long ptel, 175 pgd_t *pgdir, bool realmode, unsigned long *idx_ret); 176 extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags, 177 unsigned long pte_index, unsigned long avpn, 178 unsigned long *hpret); 179 extern long kvmppc_hv_get_dirty_log(struct kvm *kvm, 180 struct kvm_memory_slot *memslot, unsigned long *map); 181 extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, 182 unsigned long mask); 183 extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr); 184 185 extern void kvmppc_entry_trampoline(void); 186 extern void kvmppc_hv_entry_trampoline(void); 187 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); 188 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); 189 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd); 190 extern void kvmppc_pr_init_default_hcalls(struct kvm *kvm); 191 extern int kvmppc_hcall_impl_pr(unsigned long cmd); 192 extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd); 193 extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu, 194 struct kvm_vcpu *vcpu); 195 extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, 196 struct kvmppc_book3s_shadow_vcpu *svcpu); 197 198 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) 199 { 200 return vcpu->arch.book3s; 201 } 202 203 /* Also add subarch specific defines */ 204 205 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER 206 #include <asm/kvm_book3s_32.h> 207 #endif 208 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER 209 #include <asm/kvm_book3s_64.h> 210 #endif 211 212 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 213 { 214 vcpu->arch.gpr[num] = val; 215 } 216 217 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 218 { 219 return vcpu->arch.gpr[num]; 220 } 221 222 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 223 { 224 vcpu->arch.cr = val; 225 } 226 227 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 228 { 229 return vcpu->arch.cr; 230 } 231 232 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 233 { 234 vcpu->arch.xer = val; 235 } 236 237 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 238 { 239 return vcpu->arch.xer; 240 } 241 242 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) 243 { 244 vcpu->arch.ctr = val; 245 } 246 247 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) 248 { 249 return vcpu->arch.ctr; 250 } 251 252 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) 253 { 254 vcpu->arch.lr = val; 255 } 256 257 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) 258 { 259 return vcpu->arch.lr; 260 } 261 262 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) 263 { 264 vcpu->arch.pc = val; 265 } 266 267 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) 268 { 269 return vcpu->arch.pc; 270 } 271 272 static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu); 273 static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu) 274 { 275 return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE); 276 } 277 278 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) 279 { 280 return vcpu->arch.fault_dar; 281 } 282 283 static inline bool is_kvmppc_resume_guest(int r) 284 { 285 return (r == RESUME_GUEST || r == RESUME_GUEST_NV); 286 } 287 288 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm); 289 static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu) 290 { 291 /* Only PR KVM supports the magic page */ 292 return !is_kvmppc_hv_enabled(vcpu->kvm); 293 } 294 295 /* Magic register values loaded into r3 and r4 before the 'sc' assembly 296 * instruction for the OSI hypercalls */ 297 #define OSI_SC_MAGIC_R3 0x113724FA 298 #define OSI_SC_MAGIC_R4 0x77810F9B 299 300 #define INS_DCBZ 0x7c0007ec 301 /* TO = 31 for unconditional trap */ 302 #define INS_TW 0x7fe00008 303 304 /* LPIDs we support with this build -- runtime limit may be lower */ 305 #define KVMPPC_NR_LPIDS (LPID_RSVD + 1) 306 307 #define SPLIT_HACK_MASK 0xff000000 308 #define SPLIT_HACK_OFFS 0xfb000000 309 310 #endif /* __ASM_KVM_BOOK3S_H__ */ 311