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 * Book3S special bits to indicate contents in the struct by maintaining 153 * backwards compatibility with older structs. If adding a new field, 154 * please make sure to add a flag for that new field */ 155 #define KVM_SREGS_S_HIOR (1 << 0) 156 157 /* 158 * In KVM_SET_SREGS, reserved/pad fields must be left untouched from a 159 * previous KVM_GET_REGS. 160 * 161 * Unless otherwise indicated, setting any register with KVM_SET_SREGS 162 * directly sets its value. It does not trigger any special semantics such 163 * as write-one-to-clear. Calling KVM_SET_SREGS on an unmodified struct 164 * just received from KVM_GET_SREGS is always a no-op. 165 */ 166 struct kvm_sregs { 167 __u32 pvr; 168 union { 169 struct { 170 __u64 sdr1; 171 struct { 172 struct { 173 __u64 slbe; 174 __u64 slbv; 175 } slb[64]; 176 } ppc64; 177 struct { 178 __u32 sr[16]; 179 __u64 ibat[8]; 180 __u64 dbat[8]; 181 } ppc32; 182 __u64 flags; /* KVM_SREGS_S_ */ 183 __u64 hior; 184 } s; 185 struct { 186 union { 187 struct { /* KVM_SREGS_E_IMPL_FSL */ 188 __u32 features; /* KVM_SREGS_E_FSL_ */ 189 __u32 svr; 190 __u64 mcar; 191 __u32 hid0; 192 193 /* KVM_SREGS_E_FSL_PIDn */ 194 __u32 pid1, pid2; 195 } fsl; 196 __u8 pad[256]; 197 } impl; 198 199 __u32 features; /* KVM_SREGS_E_ */ 200 __u32 impl_id; /* KVM_SREGS_E_IMPL_ */ 201 __u32 update_special; /* KVM_SREGS_E_UPDATE_ */ 202 __u32 pir; /* read-only */ 203 __u64 sprg8; 204 __u64 sprg9; /* E.ED */ 205 __u64 csrr0; 206 __u64 dsrr0; /* E.ED */ 207 __u64 mcsrr0; 208 __u32 csrr1; 209 __u32 dsrr1; /* E.ED */ 210 __u32 mcsrr1; 211 __u32 esr; 212 __u64 dear; 213 __u64 ivpr; 214 __u64 mcivpr; 215 __u64 mcsr; /* KVM_SREGS_E_UPDATE_MCSR */ 216 217 __u32 tsr; /* KVM_SREGS_E_UPDATE_TSR */ 218 __u32 tcr; 219 __u32 decar; 220 __u32 dec; /* KVM_SREGS_E_UPDATE_DEC */ 221 222 /* 223 * Userspace can read TB directly, but the 224 * value reported here is consistent with "dec". 225 * 226 * Read-only. 227 */ 228 __u64 tb; 229 230 __u32 dbsr; /* KVM_SREGS_E_UPDATE_DBSR */ 231 __u32 dbcr[3]; 232 __u32 iac[4]; 233 __u32 dac[2]; 234 __u32 dvc[2]; 235 __u8 num_iac; /* read-only */ 236 __u8 num_dac; /* read-only */ 237 __u8 num_dvc; /* read-only */ 238 __u8 pad; 239 240 __u32 epr; /* EXP */ 241 __u32 vrsave; /* a.k.a. USPRG0 */ 242 __u32 epcr; /* KVM_SREGS_E_64 */ 243 244 __u32 mas0; 245 __u32 mas1; 246 __u64 mas2; 247 __u64 mas7_3; 248 __u32 mas4; 249 __u32 mas6; 250 251 __u32 ivor_low[16]; /* IVOR0-15 */ 252 __u32 ivor_high[18]; /* IVOR32+, plus room to expand */ 253 254 __u32 mmucfg; /* read-only */ 255 __u32 eptcfg; /* E.PT, read-only */ 256 __u32 tlbcfg[4];/* read-only */ 257 __u32 tlbps[4]; /* read-only */ 258 259 __u32 eplc, epsc; /* E.PD */ 260 } e; 261 __u8 pad[1020]; 262 } u; 263 }; 264 265 struct kvm_fpu { 266 __u64 fpr[32]; 267 }; 268 269 struct kvm_debug_exit_arch { 270 }; 271 272 /* for KVM_SET_GUEST_DEBUG */ 273 struct kvm_guest_debug_arch { 274 }; 275 276 #define KVM_REG_MASK 0x001f 277 #define KVM_REG_EXT_MASK 0xffe0 278 #define KVM_REG_GPR 0x0000 279 #define KVM_REG_FPR 0x0020 280 #define KVM_REG_QPR 0x0040 281 #define KVM_REG_FQPR 0x0060 282 283 #define KVM_INTERRUPT_SET -1U 284 #define KVM_INTERRUPT_UNSET -2U 285 #define KVM_INTERRUPT_SET_LEVEL -3U 286 287 /* for KVM_CAP_SPAPR_TCE */ 288 struct kvm_create_spapr_tce { 289 __u64 liobn; 290 __u32 window_size; 291 }; 292 293 /* for KVM_ALLOCATE_RMA */ 294 struct kvm_allocate_rma { 295 __u64 rma_size; 296 }; 297 298 #endif /* __LINUX_KVM_POWERPC_H */ 299