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. 2007 16 * 17 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18 */ 19 20 #ifndef __POWERPC_KVM_HOST_H__ 21 #define __POWERPC_KVM_HOST_H__ 22 23 #include <linux/mutex.h> 24 #include <linux/hrtimer.h> 25 #include <linux/interrupt.h> 26 #include <linux/types.h> 27 #include <linux/kvm_types.h> 28 #include <asm/kvm_asm.h> 29 30 #define KVM_MAX_VCPUS 1 31 #define KVM_MEMORY_SLOTS 32 32 /* memory slots that does not exposed to userspace */ 33 #define KVM_PRIVATE_MEM_SLOTS 4 34 35 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 36 37 /* We don't currently support large pages. */ 38 #define KVM_HPAGE_GFN_SHIFT(x) 0 39 #define KVM_NR_PAGE_SIZES 1 40 #define KVM_PAGES_PER_HPAGE(x) (1UL<<31) 41 42 #define HPTEG_CACHE_NUM (1 << 15) 43 #define HPTEG_HASH_BITS_PTE 13 44 #define HPTEG_HASH_BITS_VPTE 13 45 #define HPTEG_HASH_BITS_VPTE_LONG 5 46 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE) 47 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE) 48 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG) 49 50 struct kvm; 51 struct kvm_run; 52 struct kvm_vcpu; 53 54 struct kvm_vm_stat { 55 u32 remote_tlb_flush; 56 }; 57 58 struct kvm_vcpu_stat { 59 u32 sum_exits; 60 u32 mmio_exits; 61 u32 dcr_exits; 62 u32 signal_exits; 63 u32 light_exits; 64 /* Account for special types of light exits: */ 65 u32 itlb_real_miss_exits; 66 u32 itlb_virt_miss_exits; 67 u32 dtlb_real_miss_exits; 68 u32 dtlb_virt_miss_exits; 69 u32 syscall_exits; 70 u32 isi_exits; 71 u32 dsi_exits; 72 u32 emulated_inst_exits; 73 u32 dec_exits; 74 u32 ext_intr_exits; 75 u32 halt_wakeup; 76 #ifdef CONFIG_PPC_BOOK3S 77 u32 pf_storage; 78 u32 pf_instruc; 79 u32 sp_storage; 80 u32 sp_instruc; 81 u32 queue_intr; 82 u32 ld; 83 u32 ld_slow; 84 u32 st; 85 u32 st_slow; 86 #endif 87 }; 88 89 enum kvm_exit_types { 90 MMIO_EXITS, 91 DCR_EXITS, 92 SIGNAL_EXITS, 93 ITLB_REAL_MISS_EXITS, 94 ITLB_VIRT_MISS_EXITS, 95 DTLB_REAL_MISS_EXITS, 96 DTLB_VIRT_MISS_EXITS, 97 SYSCALL_EXITS, 98 ISI_EXITS, 99 DSI_EXITS, 100 EMULATED_INST_EXITS, 101 EMULATED_MTMSRWE_EXITS, 102 EMULATED_WRTEE_EXITS, 103 EMULATED_MTSPR_EXITS, 104 EMULATED_MFSPR_EXITS, 105 EMULATED_MTMSR_EXITS, 106 EMULATED_MFMSR_EXITS, 107 EMULATED_TLBSX_EXITS, 108 EMULATED_TLBWE_EXITS, 109 EMULATED_RFI_EXITS, 110 DEC_EXITS, 111 EXT_INTR_EXITS, 112 HALT_WAKEUP, 113 USR_PR_INST, 114 FP_UNAVAIL, 115 DEBUG_EXITS, 116 TIMEINGUEST, 117 __NUMBER_OF_KVM_EXIT_TYPES 118 }; 119 120 /* allow access to big endian 32bit upper/lower parts and 64bit var */ 121 struct kvmppc_exit_timing { 122 union { 123 u64 tv64; 124 struct { 125 u32 tbu, tbl; 126 } tv32; 127 }; 128 }; 129 130 struct kvm_arch { 131 }; 132 133 struct kvmppc_pte { 134 ulong eaddr; 135 u64 vpage; 136 ulong raddr; 137 bool may_read : 1; 138 bool may_write : 1; 139 bool may_execute : 1; 140 }; 141 142 struct kvmppc_mmu { 143 /* book3s_64 only */ 144 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); 145 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); 146 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); 147 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); 148 void (*slbia)(struct kvm_vcpu *vcpu); 149 /* book3s */ 150 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); 151 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); 152 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data); 153 void (*reset_msr)(struct kvm_vcpu *vcpu); 154 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); 155 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); 156 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); 157 bool (*is_dcbz32)(struct kvm_vcpu *vcpu); 158 }; 159 160 struct hpte_cache { 161 struct hlist_node list_pte; 162 struct hlist_node list_vpte; 163 struct hlist_node list_vpte_long; 164 u64 host_va; 165 u64 pfn; 166 ulong slot; 167 struct kvmppc_pte pte; 168 }; 169 170 struct kvm_vcpu_arch { 171 ulong host_stack; 172 u32 host_pid; 173 #ifdef CONFIG_PPC_BOOK3S 174 ulong host_msr; 175 ulong host_r2; 176 void *host_retip; 177 ulong trampoline_lowmem; 178 ulong trampoline_enter; 179 ulong highmem_handler; 180 ulong rmcall; 181 ulong host_paca_phys; 182 struct kvmppc_mmu mmu; 183 #endif 184 185 ulong gpr[32]; 186 187 u64 fpr[32]; 188 u64 fpscr; 189 190 #ifdef CONFIG_ALTIVEC 191 vector128 vr[32]; 192 vector128 vscr; 193 #endif 194 195 #ifdef CONFIG_VSX 196 u64 vsr[32]; 197 #endif 198 199 #ifdef CONFIG_PPC_BOOK3S 200 /* For Gekko paired singles */ 201 u32 qpr[32]; 202 #endif 203 204 #ifdef CONFIG_BOOKE 205 ulong pc; 206 ulong ctr; 207 ulong lr; 208 209 ulong xer; 210 u32 cr; 211 #endif 212 213 ulong msr; 214 #ifdef CONFIG_PPC_BOOK3S 215 ulong shadow_msr; 216 ulong hflags; 217 ulong guest_owned_ext; 218 #endif 219 u32 mmucr; 220 ulong sprg0; 221 ulong sprg1; 222 ulong sprg2; 223 ulong sprg3; 224 ulong sprg4; 225 ulong sprg5; 226 ulong sprg6; 227 ulong sprg7; 228 ulong srr0; 229 ulong srr1; 230 ulong csrr0; 231 ulong csrr1; 232 ulong dsrr0; 233 ulong dsrr1; 234 ulong dear; 235 ulong esr; 236 u32 dec; 237 u32 decar; 238 u32 tbl; 239 u32 tbu; 240 u32 tcr; 241 u32 tsr; 242 u32 ivor[64]; 243 ulong ivpr; 244 u32 pir; 245 u32 pvr; 246 247 u32 shadow_pid; 248 u32 pid; 249 u32 swap_pid; 250 251 u32 ccr0; 252 u32 ccr1; 253 u32 dbcr0; 254 u32 dbcr1; 255 u32 dbsr; 256 257 #ifdef CONFIG_KVM_EXIT_TIMING 258 struct kvmppc_exit_timing timing_exit; 259 struct kvmppc_exit_timing timing_last_enter; 260 u32 last_exit_type; 261 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; 262 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 263 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 264 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 265 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 266 u64 timing_last_exit; 267 struct dentry *debugfs_exit_timing; 268 #endif 269 270 #ifdef CONFIG_BOOKE 271 u32 last_inst; 272 ulong fault_dear; 273 ulong fault_esr; 274 ulong queued_dear; 275 ulong queued_esr; 276 #endif 277 gpa_t paddr_accessed; 278 279 u8 io_gpr; /* GPR used as IO source/target */ 280 u8 mmio_is_bigendian; 281 u8 mmio_sign_extend; 282 u8 dcr_needed; 283 u8 dcr_is_write; 284 u8 osi_needed; 285 u8 osi_enabled; 286 287 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ 288 289 struct hrtimer dec_timer; 290 struct tasklet_struct tasklet; 291 u64 dec_jiffies; 292 unsigned long pending_exceptions; 293 294 #ifdef CONFIG_PPC_BOOK3S 295 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE]; 296 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; 297 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG]; 298 int hpte_cache_count; 299 #endif 300 }; 301 302 #endif /* __POWERPC_KVM_HOST_H__ */ 303