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 __LINUX_KVM_POWERPC_H 21 #define __LINUX_KVM_POWERPC_H 22 23 #include <linux/types.h> 24 25 /* Select powerpc specific features in <linux/kvm.h> */ 26 #define __KVM_HAVE_SPAPR_TCE 27 #define __KVM_HAVE_PPC_SMT 28 29 struct kvm_regs { 30 __u64 pc; 31 __u64 cr; 32 __u64 ctr; 33 __u64 lr; 34 __u64 xer; 35 __u64 msr; 36 __u64 srr0; 37 __u64 srr1; 38 __u64 pid; 39 40 __u64 sprg0; 41 __u64 sprg1; 42 __u64 sprg2; 43 __u64 sprg3; 44 __u64 sprg4; 45 __u64 sprg5; 46 __u64 sprg6; 47 __u64 sprg7; 48 49 __u64 gpr[32]; 50 }; 51 52 #define KVM_SREGS_E_IMPL_NONE 0 53 #define KVM_SREGS_E_IMPL_FSL 1 54 55 #define KVM_SREGS_E_FSL_PIDn (1 << 0) /* PID1/PID2 */ 56 57 /* 58 * Feature bits indicate which sections of the sregs struct are valid, 59 * both in KVM_GET_SREGS and KVM_SET_SREGS. On KVM_SET_SREGS, registers 60 * corresponding to unset feature bits will not be modified. This allows 61 * restoring a checkpoint made without that feature, while keeping the 62 * default values of the new registers. 63 * 64 * KVM_SREGS_E_BASE contains: 65 * CSRR0/1 (refers to SRR2/3 on 40x) 66 * ESR 67 * DEAR 68 * MCSR 69 * TSR 70 * TCR 71 * DEC 72 * TB 73 * VRSAVE (USPRG0) 74 */ 75 #define KVM_SREGS_E_BASE (1 << 0) 76 77 /* 78 * KVM_SREGS_E_ARCH206 contains: 79 * 80 * PIR 81 * MCSRR0/1 82 * DECAR 83 * IVPR 84 */ 85 #define KVM_SREGS_E_ARCH206 (1 << 1) 86 87 /* 88 * Contains EPCR, plus the upper half of 64-bit registers 89 * that are 32-bit on 32-bit implementations. 90 */ 91 #define KVM_SREGS_E_64 (1 << 2) 92 93 #define KVM_SREGS_E_SPRG8 (1 << 3) 94 #define KVM_SREGS_E_MCIVPR (1 << 4) 95 96 /* 97 * IVORs are used -- contains IVOR0-15, plus additional IVORs 98 * in combination with an appropriate feature bit. 99 */ 100 #define KVM_SREGS_E_IVOR (1 << 5) 101 102 /* 103 * Contains MAS0-4, MAS6-7, TLBnCFG, MMUCFG. 104 * Also TLBnPS if MMUCFG[MAVN] = 1. 105 */ 106 #define KVM_SREGS_E_ARCH206_MMU (1 << 6) 107 108 /* DBSR, DBCR, IAC, DAC, DVC */ 109 #define KVM_SREGS_E_DEBUG (1 << 7) 110 111 /* Enhanced debug -- DSRR0/1, SPRG9 */ 112 #define KVM_SREGS_E_ED (1 << 8) 113 114 /* Embedded Floating Point (SPE) -- IVOR32-34 if KVM_SREGS_E_IVOR */ 115 #define KVM_SREGS_E_SPE (1 << 9) 116 117 /* External Proxy (EXP) -- EPR */ 118 #define KVM_SREGS_EXP (1 << 10) 119 120 /* External PID (E.PD) -- EPSC/EPLC */ 121 #define KVM_SREGS_E_PD (1 << 11) 122 123 /* Processor Control (E.PC) -- IVOR36-37 if KVM_SREGS_E_IVOR */ 124 #define KVM_SREGS_E_PC (1 << 12) 125 126 /* Page table (E.PT) -- EPTCFG */ 127 #define KVM_SREGS_E_PT (1 << 13) 128 129 /* Embedded Performance Monitor (E.PM) -- IVOR35 if KVM_SREGS_E_IVOR */ 130 #define KVM_SREGS_E_PM (1 << 14) 131 132 /* 133 * Special updates: 134 * 135 * Some registers may change even while a vcpu is not running. 136 * To avoid losing these changes, by default these registers are 137 * not updated by KVM_SET_SREGS. To force an update, set the bit 138 * in u.e.update_special corresponding to the register to be updated. 139 * 140 * The update_special field is zero on return from KVM_GET_SREGS. 141 * 142 * When restoring a checkpoint, the caller can set update_special 143 * to 0xffffffff to ensure that everything is restored, even new features 144 * that the caller doesn't know about. 145 */ 146 #define KVM_SREGS_E_UPDATE_MCSR (1 << 0) 147 #define KVM_SREGS_E_UPDATE_TSR (1 << 1) 148 #define KVM_SREGS_E_UPDATE_DEC (1 << 2) 149 #define KVM_SREGS_E_UPDATE_DBSR (1 << 3) 150 151 /* 152 * In KVM_SET_SREGS, reserved/pad fields must be left untouched from a 153 * previous KVM_GET_REGS. 154 * 155 * Unless otherwise indicated, setting any register with KVM_SET_SREGS 156 * directly sets its value. It does not trigger any special semantics such 157 * as write-one-to-clear. Calling KVM_SET_SREGS on an unmodified struct 158 * just received from KVM_GET_SREGS is always a no-op. 159 */ 160 struct kvm_sregs { 161 __u32 pvr; 162 union { 163 struct { 164 __u64 sdr1; 165 struct { 166 struct { 167 __u64 slbe; 168 __u64 slbv; 169 } slb[64]; 170 } ppc64; 171 struct { 172 __u32 sr[16]; 173 __u64 ibat[8]; 174 __u64 dbat[8]; 175 } ppc32; 176 } s; 177 struct { 178 union { 179 struct { /* KVM_SREGS_E_IMPL_FSL */ 180 __u32 features; /* KVM_SREGS_E_FSL_ */ 181 __u32 svr; 182 __u64 mcar; 183 __u32 hid0; 184 185 /* KVM_SREGS_E_FSL_PIDn */ 186 __u32 pid1, pid2; 187 } fsl; 188 __u8 pad[256]; 189 } impl; 190 191 __u32 features; /* KVM_SREGS_E_ */ 192 __u32 impl_id; /* KVM_SREGS_E_IMPL_ */ 193 __u32 update_special; /* KVM_SREGS_E_UPDATE_ */ 194 __u32 pir; /* read-only */ 195 __u64 sprg8; 196 __u64 sprg9; /* E.ED */ 197 __u64 csrr0; 198 __u64 dsrr0; /* E.ED */ 199 __u64 mcsrr0; 200 __u32 csrr1; 201 __u32 dsrr1; /* E.ED */ 202 __u32 mcsrr1; 203 __u32 esr; 204 __u64 dear; 205 __u64 ivpr; 206 __u64 mcivpr; 207 __u64 mcsr; /* KVM_SREGS_E_UPDATE_MCSR */ 208 209 __u32 tsr; /* KVM_SREGS_E_UPDATE_TSR */ 210 __u32 tcr; 211 __u32 decar; 212 __u32 dec; /* KVM_SREGS_E_UPDATE_DEC */ 213 214 /* 215 * Userspace can read TB directly, but the 216 * value reported here is consistent with "dec". 217 * 218 * Read-only. 219 */ 220 __u64 tb; 221 222 __u32 dbsr; /* KVM_SREGS_E_UPDATE_DBSR */ 223 __u32 dbcr[3]; 224 __u32 iac[4]; 225 __u32 dac[2]; 226 __u32 dvc[2]; 227 __u8 num_iac; /* read-only */ 228 __u8 num_dac; /* read-only */ 229 __u8 num_dvc; /* read-only */ 230 __u8 pad; 231 232 __u32 epr; /* EXP */ 233 __u32 vrsave; /* a.k.a. USPRG0 */ 234 __u32 epcr; /* KVM_SREGS_E_64 */ 235 236 __u32 mas0; 237 __u32 mas1; 238 __u64 mas2; 239 __u64 mas7_3; 240 __u32 mas4; 241 __u32 mas6; 242 243 __u32 ivor_low[16]; /* IVOR0-15 */ 244 __u32 ivor_high[18]; /* IVOR32+, plus room to expand */ 245 246 __u32 mmucfg; /* read-only */ 247 __u32 eptcfg; /* E.PT, read-only */ 248 __u32 tlbcfg[4];/* read-only */ 249 __u32 tlbps[4]; /* read-only */ 250 251 __u32 eplc, epsc; /* E.PD */ 252 } e; 253 __u8 pad[1020]; 254 } u; 255 }; 256 257 struct kvm_fpu { 258 __u64 fpr[32]; 259 }; 260 261 struct kvm_debug_exit_arch { 262 }; 263 264 /* for KVM_SET_GUEST_DEBUG */ 265 struct kvm_guest_debug_arch { 266 }; 267 268 #define KVM_REG_MASK 0x001f 269 #define KVM_REG_EXT_MASK 0xffe0 270 #define KVM_REG_GPR 0x0000 271 #define KVM_REG_FPR 0x0020 272 #define KVM_REG_QPR 0x0040 273 #define KVM_REG_FQPR 0x0060 274 275 #define KVM_INTERRUPT_SET -1U 276 #define KVM_INTERRUPT_UNSET -2U 277 #define KVM_INTERRUPT_SET_LEVEL -3U 278 279 #define KVM_CPU_440 1 280 #define KVM_CPU_E500V2 2 281 #define KVM_CPU_3S_32 3 282 #define KVM_CPU_3S_64 4 283 284 /* for KVM_CAP_SPAPR_TCE */ 285 struct kvm_create_spapr_tce { 286 __u64 liobn; 287 __u32 window_size; 288 }; 289 290 /* for KVM_ALLOCATE_RMA */ 291 struct kvm_allocate_rma { 292 __u64 rma_size; 293 }; 294 295 struct kvm_book3e_206_tlb_entry { 296 __u32 mas8; 297 __u32 mas1; 298 __u64 mas2; 299 __u64 mas7_3; 300 }; 301 302 struct kvm_book3e_206_tlb_params { 303 /* 304 * For mmu types KVM_MMU_FSL_BOOKE_NOHV and KVM_MMU_FSL_BOOKE_HV: 305 * 306 * - The number of ways of TLB0 must be a power of two between 2 and 307 * 16. 308 * - TLB1 must be fully associative. 309 * - The size of TLB0 must be a multiple of the number of ways, and 310 * the number of sets must be a power of two. 311 * - The size of TLB1 may not exceed 64 entries. 312 * - TLB0 supports 4 KiB pages. 313 * - The page sizes supported by TLB1 are as indicated by 314 * TLB1CFG (if MMUCFG[MAVN] = 0) or TLB1PS (if MMUCFG[MAVN] = 1) 315 * as returned by KVM_GET_SREGS. 316 * - TLB2 and TLB3 are reserved, and their entries in tlb_sizes[] 317 * and tlb_ways[] must be zero. 318 * 319 * tlb_ways[n] = tlb_sizes[n] means the array is fully associative. 320 * 321 * KVM will adjust TLBnCFG based on the sizes configured here, 322 * though arrays greater than 2048 entries will have TLBnCFG[NENTRY] 323 * set to zero. 324 */ 325 __u32 tlb_sizes[4]; 326 __u32 tlb_ways[4]; 327 __u32 reserved[8]; 328 }; 329 330 #define KVM_ONE_REG_PPC_HIOR KVM_ONE_REG_PPC | 0x100 331 332 #endif /* __LINUX_KVM_POWERPC_H */ 333