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 <linux/kvm_para.h> 29 #include <asm/kvm_asm.h> 30 31 #define KVM_MAX_VCPUS 1 32 #define KVM_MEMORY_SLOTS 32 33 /* memory slots that does not exposed to userspace */ 34 #define KVM_PRIVATE_MEM_SLOTS 4 35 36 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1 37 38 /* We don't currently support large pages. */ 39 #define KVM_HPAGE_GFN_SHIFT(x) 0 40 #define KVM_NR_PAGE_SIZES 1 41 #define KVM_PAGES_PER_HPAGE(x) (1UL<<31) 42 43 #define HPTEG_CACHE_NUM (1 << 15) 44 #define HPTEG_HASH_BITS_PTE 13 45 #define HPTEG_HASH_BITS_PTE_LONG 12 46 #define HPTEG_HASH_BITS_VPTE 13 47 #define HPTEG_HASH_BITS_VPTE_LONG 5 48 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE) 49 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG) 50 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE) 51 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG) 52 53 /* Physical Address Mask - allowed range of real mode RAM access */ 54 #define KVM_PAM 0x0fffffffffffffffULL 55 56 struct kvm; 57 struct kvm_run; 58 struct kvm_vcpu; 59 60 struct kvm_vm_stat { 61 u32 remote_tlb_flush; 62 }; 63 64 struct kvm_vcpu_stat { 65 u32 sum_exits; 66 u32 mmio_exits; 67 u32 dcr_exits; 68 u32 signal_exits; 69 u32 light_exits; 70 /* Account for special types of light exits: */ 71 u32 itlb_real_miss_exits; 72 u32 itlb_virt_miss_exits; 73 u32 dtlb_real_miss_exits; 74 u32 dtlb_virt_miss_exits; 75 u32 syscall_exits; 76 u32 isi_exits; 77 u32 dsi_exits; 78 u32 emulated_inst_exits; 79 u32 dec_exits; 80 u32 ext_intr_exits; 81 u32 halt_wakeup; 82 #ifdef CONFIG_PPC_BOOK3S 83 u32 pf_storage; 84 u32 pf_instruc; 85 u32 sp_storage; 86 u32 sp_instruc; 87 u32 queue_intr; 88 u32 ld; 89 u32 ld_slow; 90 u32 st; 91 u32 st_slow; 92 #endif 93 }; 94 95 enum kvm_exit_types { 96 MMIO_EXITS, 97 DCR_EXITS, 98 SIGNAL_EXITS, 99 ITLB_REAL_MISS_EXITS, 100 ITLB_VIRT_MISS_EXITS, 101 DTLB_REAL_MISS_EXITS, 102 DTLB_VIRT_MISS_EXITS, 103 SYSCALL_EXITS, 104 ISI_EXITS, 105 DSI_EXITS, 106 EMULATED_INST_EXITS, 107 EMULATED_MTMSRWE_EXITS, 108 EMULATED_WRTEE_EXITS, 109 EMULATED_MTSPR_EXITS, 110 EMULATED_MFSPR_EXITS, 111 EMULATED_MTMSR_EXITS, 112 EMULATED_MFMSR_EXITS, 113 EMULATED_TLBSX_EXITS, 114 EMULATED_TLBWE_EXITS, 115 EMULATED_RFI_EXITS, 116 DEC_EXITS, 117 EXT_INTR_EXITS, 118 HALT_WAKEUP, 119 USR_PR_INST, 120 FP_UNAVAIL, 121 DEBUG_EXITS, 122 TIMEINGUEST, 123 __NUMBER_OF_KVM_EXIT_TYPES 124 }; 125 126 /* allow access to big endian 32bit upper/lower parts and 64bit var */ 127 struct kvmppc_exit_timing { 128 union { 129 u64 tv64; 130 struct { 131 u32 tbu, tbl; 132 } tv32; 133 }; 134 }; 135 136 struct kvm_arch { 137 }; 138 139 struct kvmppc_pte { 140 ulong eaddr; 141 u64 vpage; 142 ulong raddr; 143 bool may_read : 1; 144 bool may_write : 1; 145 bool may_execute : 1; 146 }; 147 148 struct kvmppc_mmu { 149 /* book3s_64 only */ 150 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); 151 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); 152 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); 153 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); 154 void (*slbia)(struct kvm_vcpu *vcpu); 155 /* book3s */ 156 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); 157 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); 158 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data); 159 void (*reset_msr)(struct kvm_vcpu *vcpu); 160 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); 161 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); 162 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); 163 bool (*is_dcbz32)(struct kvm_vcpu *vcpu); 164 }; 165 166 struct hpte_cache { 167 struct hlist_node list_pte; 168 struct hlist_node list_pte_long; 169 struct hlist_node list_vpte; 170 struct hlist_node list_vpte_long; 171 struct rcu_head rcu_head; 172 u64 host_va; 173 u64 pfn; 174 ulong slot; 175 struct kvmppc_pte pte; 176 }; 177 178 struct kvm_vcpu_arch { 179 ulong host_stack; 180 u32 host_pid; 181 #ifdef CONFIG_PPC_BOOK3S 182 ulong host_msr; 183 ulong host_r2; 184 void *host_retip; 185 ulong trampoline_lowmem; 186 ulong trampoline_enter; 187 ulong highmem_handler; 188 ulong rmcall; 189 ulong host_paca_phys; 190 struct kvmppc_mmu mmu; 191 #endif 192 193 ulong gpr[32]; 194 195 u64 fpr[32]; 196 u64 fpscr; 197 198 #ifdef CONFIG_ALTIVEC 199 vector128 vr[32]; 200 vector128 vscr; 201 #endif 202 203 #ifdef CONFIG_VSX 204 u64 vsr[32]; 205 #endif 206 207 #ifdef CONFIG_PPC_BOOK3S 208 /* For Gekko paired singles */ 209 u32 qpr[32]; 210 #endif 211 212 #ifdef CONFIG_BOOKE 213 ulong pc; 214 ulong ctr; 215 ulong lr; 216 217 ulong xer; 218 u32 cr; 219 #endif 220 221 #ifdef CONFIG_PPC_BOOK3S 222 ulong shadow_msr; 223 ulong hflags; 224 ulong guest_owned_ext; 225 #endif 226 u32 vrsave; /* also USPRG0 */ 227 u32 mmucr; 228 ulong sprg4; 229 ulong sprg5; 230 ulong sprg6; 231 ulong sprg7; 232 ulong csrr0; 233 ulong csrr1; 234 ulong dsrr0; 235 ulong dsrr1; 236 ulong mcsrr0; 237 ulong mcsrr1; 238 ulong mcsr; 239 ulong esr; 240 u32 dec; 241 u32 decar; 242 u32 tbl; 243 u32 tbu; 244 u32 tcr; 245 u32 tsr; 246 u32 ivor[64]; 247 ulong ivpr; 248 u32 pir; 249 u32 pvr; 250 251 u32 shadow_pid; 252 u32 pid; 253 u32 swap_pid; 254 255 u32 ccr0; 256 u32 ccr1; 257 u32 dbcr0; 258 u32 dbcr1; 259 u32 dbsr; 260 261 #ifdef CONFIG_KVM_EXIT_TIMING 262 struct mutex exit_timing_lock; 263 struct kvmppc_exit_timing timing_exit; 264 struct kvmppc_exit_timing timing_last_enter; 265 u32 last_exit_type; 266 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; 267 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 268 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 269 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 270 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 271 u64 timing_last_exit; 272 struct dentry *debugfs_exit_timing; 273 #endif 274 275 #ifdef CONFIG_BOOKE 276 u32 last_inst; 277 ulong fault_dear; 278 ulong fault_esr; 279 ulong queued_dear; 280 ulong queued_esr; 281 #endif 282 gpa_t paddr_accessed; 283 284 u8 io_gpr; /* GPR used as IO source/target */ 285 u8 mmio_is_bigendian; 286 u8 mmio_sign_extend; 287 u8 dcr_needed; 288 u8 dcr_is_write; 289 u8 osi_needed; 290 u8 osi_enabled; 291 292 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ 293 294 struct hrtimer dec_timer; 295 struct tasklet_struct tasklet; 296 u64 dec_jiffies; 297 unsigned long pending_exceptions; 298 struct kvm_vcpu_arch_shared *shared; 299 unsigned long magic_page_pa; /* phys addr to map the magic page to */ 300 unsigned long magic_page_ea; /* effect. addr to map the magic page to */ 301 302 #ifdef CONFIG_PPC_BOOK3S 303 struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE]; 304 struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG]; 305 struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; 306 struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG]; 307 int hpte_cache_count; 308 spinlock_t mmu_lock; 309 #endif 310 }; 311 312 #endif /* __POWERPC_KVM_HOST_H__ */ 313