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