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_slb { 28 u64 esid; 29 u64 vsid; 30 u64 orige; 31 u64 origv; 32 bool valid : 1; 33 bool Ks : 1; 34 bool Kp : 1; 35 bool nx : 1; 36 bool large : 1; /* PTEs are 16MB */ 37 bool tb : 1; /* 1TB segment */ 38 bool class : 1; 39 }; 40 41 struct kvmppc_sr { 42 u32 raw; 43 u32 vsid; 44 bool Ks : 1; 45 bool Kp : 1; 46 bool nx : 1; 47 bool valid : 1; 48 }; 49 50 struct kvmppc_bat { 51 u64 raw; 52 u32 bepi; 53 u32 bepi_mask; 54 u32 brpn; 55 u8 wimg; 56 u8 pp; 57 bool vs : 1; 58 bool vp : 1; 59 }; 60 61 struct kvmppc_sid_map { 62 u64 guest_vsid; 63 u64 guest_esid; 64 u64 host_vsid; 65 bool valid : 1; 66 }; 67 68 #define SID_MAP_BITS 9 69 #define SID_MAP_NUM (1 << SID_MAP_BITS) 70 #define SID_MAP_MASK (SID_MAP_NUM - 1) 71 72 struct kvmppc_vcpu_book3s { 73 struct kvm_vcpu vcpu; 74 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 75 struct kvmppc_sid_map sid_map[SID_MAP_NUM]; 76 struct kvmppc_slb slb[64]; 77 struct { 78 u64 esid; 79 u64 vsid; 80 } slb_shadow[64]; 81 u8 slb_shadow_max; 82 struct kvmppc_sr sr[16]; 83 struct kvmppc_bat ibat[8]; 84 struct kvmppc_bat dbat[8]; 85 u64 hid[6]; 86 u64 gqr[8]; 87 int slb_nr; 88 u32 dsisr; 89 u64 sdr1; 90 u64 hior; 91 u64 msr_mask; 92 u64 vsid_first; 93 u64 vsid_next; 94 u64 vsid_max; 95 int context_id; 96 ulong prog_flags; /* flags to inject when giving a 700 trap */ 97 }; 98 99 #define CONTEXT_HOST 0 100 #define CONTEXT_GUEST 1 101 #define CONTEXT_GUEST_END 2 102 103 #define VSID_REAL 0x1fffffffffc00000ULL 104 #define VSID_BAT 0x1fffffffffb00000ULL 105 #define VSID_REAL_DR 0x2000000000000000ULL 106 #define VSID_REAL_IR 0x4000000000000000ULL 107 #define VSID_PR 0x8000000000000000ULL 108 109 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); 110 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); 111 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); 112 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); 113 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); 114 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); 115 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); 116 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); 117 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); 118 extern struct kvmppc_pte *kvmppc_mmu_find_pte(struct kvm_vcpu *vcpu, u64 ea, bool data); 119 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 120 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data); 121 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); 122 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, 123 bool upper, u32 val); 124 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); 125 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); 126 127 extern u32 kvmppc_trampoline_lowmem; 128 extern u32 kvmppc_trampoline_enter; 129 extern void kvmppc_rmcall(ulong srr0, ulong srr1); 130 extern void kvmppc_load_up_fpu(void); 131 extern void kvmppc_load_up_altivec(void); 132 extern void kvmppc_load_up_vsx(void); 133 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); 134 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); 135 136 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) 137 { 138 return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu); 139 } 140 141 static inline ulong dsisr(void) 142 { 143 ulong r; 144 asm ( "mfdsisr %0 " : "=r" (r) ); 145 return r; 146 } 147 148 extern void kvm_return_point(void); 149 static inline struct kvmppc_book3s_shadow_vcpu *to_svcpu(struct kvm_vcpu *vcpu); 150 151 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) 152 { 153 if ( num < 14 ) { 154 to_svcpu(vcpu)->gpr[num] = val; 155 to_book3s(vcpu)->shadow_vcpu->gpr[num] = val; 156 } else 157 vcpu->arch.gpr[num] = val; 158 } 159 160 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) 161 { 162 if ( num < 14 ) 163 return to_svcpu(vcpu)->gpr[num]; 164 else 165 return vcpu->arch.gpr[num]; 166 } 167 168 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) 169 { 170 to_svcpu(vcpu)->cr = val; 171 to_book3s(vcpu)->shadow_vcpu->cr = val; 172 } 173 174 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) 175 { 176 return to_svcpu(vcpu)->cr; 177 } 178 179 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) 180 { 181 to_svcpu(vcpu)->xer = val; 182 to_book3s(vcpu)->shadow_vcpu->xer = val; 183 } 184 185 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) 186 { 187 return to_svcpu(vcpu)->xer; 188 } 189 190 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) 191 { 192 to_svcpu(vcpu)->ctr = val; 193 } 194 195 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) 196 { 197 return to_svcpu(vcpu)->ctr; 198 } 199 200 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) 201 { 202 to_svcpu(vcpu)->lr = val; 203 } 204 205 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) 206 { 207 return to_svcpu(vcpu)->lr; 208 } 209 210 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) 211 { 212 to_svcpu(vcpu)->pc = val; 213 } 214 215 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) 216 { 217 return to_svcpu(vcpu)->pc; 218 } 219 220 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) 221 { 222 ulong pc = kvmppc_get_pc(vcpu); 223 struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu); 224 225 /* Load the instruction manually if it failed to do so in the 226 * exit path */ 227 if (svcpu->last_inst == KVM_INST_FETCH_FAILED) 228 kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false); 229 230 return svcpu->last_inst; 231 } 232 233 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) 234 { 235 return to_svcpu(vcpu)->fault_dar; 236 } 237 238 /* Magic register values loaded into r3 and r4 before the 'sc' assembly 239 * instruction for the OSI hypercalls */ 240 #define OSI_SC_MAGIC_R3 0x113724FA 241 #define OSI_SC_MAGIC_R4 0x77810F9B 242 243 #define INS_DCBZ 0x7c0007ec 244 245 /* Also add subarch specific defines */ 246 247 #ifdef CONFIG_PPC_BOOK3S_32 248 #include <asm/kvm_book3s_32.h> 249 #else 250 #include <asm/kvm_book3s_64.h> 251 #endif 252 253 #endif /* __ASM_KVM_BOOK3S_H__ */ 254