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_NR_PAGE_SIZES 1 39 #define KVM_PAGES_PER_HPAGE(x) (1UL<<31) 40 41 #define HPTEG_CACHE_NUM 1024 42 43 struct kvm; 44 struct kvm_run; 45 struct kvm_vcpu; 46 47 struct kvm_vm_stat { 48 u32 remote_tlb_flush; 49 }; 50 51 struct kvm_vcpu_stat { 52 u32 sum_exits; 53 u32 mmio_exits; 54 u32 dcr_exits; 55 u32 signal_exits; 56 u32 light_exits; 57 /* Account for special types of light exits: */ 58 u32 itlb_real_miss_exits; 59 u32 itlb_virt_miss_exits; 60 u32 dtlb_real_miss_exits; 61 u32 dtlb_virt_miss_exits; 62 u32 syscall_exits; 63 u32 isi_exits; 64 u32 dsi_exits; 65 u32 emulated_inst_exits; 66 u32 dec_exits; 67 u32 ext_intr_exits; 68 u32 halt_wakeup; 69 #ifdef CONFIG_PPC64 70 u32 pf_storage; 71 u32 pf_instruc; 72 u32 sp_storage; 73 u32 sp_instruc; 74 u32 queue_intr; 75 u32 ld; 76 u32 ld_slow; 77 u32 st; 78 u32 st_slow; 79 #endif 80 }; 81 82 enum kvm_exit_types { 83 MMIO_EXITS, 84 DCR_EXITS, 85 SIGNAL_EXITS, 86 ITLB_REAL_MISS_EXITS, 87 ITLB_VIRT_MISS_EXITS, 88 DTLB_REAL_MISS_EXITS, 89 DTLB_VIRT_MISS_EXITS, 90 SYSCALL_EXITS, 91 ISI_EXITS, 92 DSI_EXITS, 93 EMULATED_INST_EXITS, 94 EMULATED_MTMSRWE_EXITS, 95 EMULATED_WRTEE_EXITS, 96 EMULATED_MTSPR_EXITS, 97 EMULATED_MFSPR_EXITS, 98 EMULATED_MTMSR_EXITS, 99 EMULATED_MFMSR_EXITS, 100 EMULATED_TLBSX_EXITS, 101 EMULATED_TLBWE_EXITS, 102 EMULATED_RFI_EXITS, 103 DEC_EXITS, 104 EXT_INTR_EXITS, 105 HALT_WAKEUP, 106 USR_PR_INST, 107 FP_UNAVAIL, 108 DEBUG_EXITS, 109 TIMEINGUEST, 110 __NUMBER_OF_KVM_EXIT_TYPES 111 }; 112 113 /* allow access to big endian 32bit upper/lower parts and 64bit var */ 114 struct kvmppc_exit_timing { 115 union { 116 u64 tv64; 117 struct { 118 u32 tbu, tbl; 119 } tv32; 120 }; 121 }; 122 123 struct kvm_arch { 124 }; 125 126 struct kvmppc_pte { 127 u64 eaddr; 128 u64 vpage; 129 u64 raddr; 130 bool may_read; 131 bool may_write; 132 bool may_execute; 133 }; 134 135 struct kvmppc_mmu { 136 /* book3s_64 only */ 137 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); 138 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); 139 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); 140 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); 141 void (*slbia)(struct kvm_vcpu *vcpu); 142 /* book3s */ 143 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); 144 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); 145 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data); 146 void (*reset_msr)(struct kvm_vcpu *vcpu); 147 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); 148 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, u64 esid, u64 *vsid); 149 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); 150 bool (*is_dcbz32)(struct kvm_vcpu *vcpu); 151 }; 152 153 struct hpte_cache { 154 u64 host_va; 155 u64 pfn; 156 ulong slot; 157 struct kvmppc_pte pte; 158 }; 159 160 struct kvm_vcpu_arch { 161 ulong host_stack; 162 u32 host_pid; 163 #ifdef CONFIG_PPC64 164 ulong host_msr; 165 ulong host_r2; 166 void *host_retip; 167 ulong trampoline_lowmem; 168 ulong trampoline_enter; 169 ulong highmem_handler; 170 ulong rmcall; 171 ulong host_paca_phys; 172 struct kvmppc_mmu mmu; 173 #endif 174 175 ulong gpr[32]; 176 177 u64 fpr[32]; 178 u32 fpscr; 179 180 #ifdef CONFIG_ALTIVEC 181 vector128 vr[32]; 182 vector128 vscr; 183 #endif 184 185 #ifdef CONFIG_VSX 186 u64 vsr[32]; 187 #endif 188 189 ulong pc; 190 ulong ctr; 191 ulong lr; 192 193 #ifdef CONFIG_BOOKE 194 ulong xer; 195 u32 cr; 196 #endif 197 198 ulong msr; 199 #ifdef CONFIG_PPC64 200 ulong shadow_msr; 201 ulong shadow_srr1; 202 ulong hflags; 203 ulong guest_owned_ext; 204 #endif 205 u32 mmucr; 206 ulong sprg0; 207 ulong sprg1; 208 ulong sprg2; 209 ulong sprg3; 210 ulong sprg4; 211 ulong sprg5; 212 ulong sprg6; 213 ulong sprg7; 214 ulong srr0; 215 ulong srr1; 216 ulong csrr0; 217 ulong csrr1; 218 ulong dsrr0; 219 ulong dsrr1; 220 ulong dear; 221 ulong esr; 222 u32 dec; 223 u32 decar; 224 u32 tbl; 225 u32 tbu; 226 u32 tcr; 227 u32 tsr; 228 u32 ivor[64]; 229 ulong ivpr; 230 u32 pir; 231 u32 pvr; 232 233 u32 shadow_pid; 234 u32 pid; 235 u32 swap_pid; 236 237 u32 ccr0; 238 u32 ccr1; 239 u32 dbcr0; 240 u32 dbcr1; 241 u32 dbsr; 242 243 #ifdef CONFIG_KVM_EXIT_TIMING 244 struct kvmppc_exit_timing timing_exit; 245 struct kvmppc_exit_timing timing_last_enter; 246 u32 last_exit_type; 247 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; 248 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 249 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 250 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 251 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 252 u64 timing_last_exit; 253 struct dentry *debugfs_exit_timing; 254 #endif 255 256 u32 last_inst; 257 #ifdef CONFIG_PPC64 258 ulong fault_dsisr; 259 #endif 260 ulong fault_dear; 261 ulong fault_esr; 262 ulong queued_dear; 263 ulong queued_esr; 264 gpa_t paddr_accessed; 265 266 u8 io_gpr; /* GPR used as IO source/target */ 267 u8 mmio_is_bigendian; 268 u8 dcr_needed; 269 u8 dcr_is_write; 270 271 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ 272 273 struct hrtimer dec_timer; 274 struct tasklet_struct tasklet; 275 u64 dec_jiffies; 276 unsigned long pending_exceptions; 277 278 #ifdef CONFIG_PPC64 279 struct hpte_cache hpte_cache[HPTEG_CACHE_NUM]; 280 int hpte_cache_offset; 281 #endif 282 }; 283 284 #endif /* __POWERPC_KVM_HOST_H__ */ 285