Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 1 | /* |
| 2 | * S/390 virtual CPU header |
| 3 | * |
| 4 | * Copyright (c) 2009 Ulrich Hecht |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
Blue Swirl | 70539e1 | 2010-03-07 15:48:43 +0000 | [diff] [blame] | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 18 | */ |
| 19 | #ifndef CPU_S390X_H |
| 20 | #define CPU_S390X_H |
| 21 | |
| 22 | #define TARGET_LONG_BITS 64 |
| 23 | |
| 24 | #define ELF_MACHINE EM_S390 |
| 25 | |
| 26 | #define CPUState struct CPUS390XState |
| 27 | |
| 28 | #include "cpu-defs.h" |
| 29 | |
| 30 | #include "softfloat.h" |
| 31 | |
Alexander Graf | 10c339a | 2009-12-05 12:44:26 +0100 | [diff] [blame] | 32 | #define NB_MMU_MODES 2 |
Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 33 | |
| 34 | typedef union FPReg { |
| 35 | struct { |
| 36 | #ifdef WORDS_BIGENDIAN |
| 37 | float32 e; |
| 38 | int32_t __pad; |
| 39 | #else |
| 40 | int32_t __pad; |
| 41 | float32 e; |
| 42 | #endif |
| 43 | }; |
| 44 | float64 d; |
| 45 | uint64_t i; |
| 46 | } FPReg; |
| 47 | |
| 48 | typedef struct CPUS390XState { |
| 49 | uint64_t regs[16]; /* GP registers */ |
| 50 | |
| 51 | uint32_t aregs[16]; /* access registers */ |
| 52 | |
| 53 | uint32_t fpc; /* floating-point control register */ |
| 54 | FPReg fregs[16]; /* FP registers */ |
| 55 | float_status fpu_status; /* passed to softfloat lib */ |
| 56 | |
| 57 | struct { |
| 58 | uint64_t mask; |
| 59 | uint64_t addr; |
| 60 | } psw; |
| 61 | |
| 62 | int cc; /* condition code (0-3) */ |
| 63 | |
| 64 | uint64_t __excp_addr; |
| 65 | |
| 66 | CPU_COMMON |
| 67 | } CPUS390XState; |
| 68 | |
| 69 | #if defined(CONFIG_USER_ONLY) |
| 70 | static inline void cpu_clone_regs(CPUState *env, target_ulong newsp) |
| 71 | { |
| 72 | if (newsp) |
| 73 | env->regs[15] = newsp; |
| 74 | env->regs[0] = 0; |
| 75 | } |
| 76 | #endif |
| 77 | |
Alexander Graf | 10c339a | 2009-12-05 12:44:26 +0100 | [diff] [blame] | 78 | #define MMU_MODE0_SUFFIX _kernel |
| 79 | #define MMU_MODE1_SUFFIX _user |
| 80 | #define MMU_USER_IDX 1 |
| 81 | static inline int cpu_mmu_index (CPUState *env) |
| 82 | { |
| 83 | /* XXX: Currently we don't implement virtual memory */ |
| 84 | return 0; |
| 85 | } |
| 86 | |
Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 87 | CPUS390XState *cpu_s390x_init(const char *cpu_model); |
| 88 | int cpu_s390x_exec(CPUS390XState *s); |
| 89 | void cpu_s390x_close(CPUS390XState *s); |
| 90 | |
| 91 | /* you can call this signal handler from your SIGBUS and SIGSEGV |
| 92 | signal handlers to inform the virtual CPU of exceptions. non zero |
| 93 | is returned if the signal was handled by the virtual CPU. */ |
| 94 | int cpu_s390x_signal_handler(int host_signum, void *pinfo, |
| 95 | void *puc); |
| 96 | int cpu_s390x_handle_mmu_fault (CPUS390XState *env, target_ulong address, int rw, |
| 97 | int mmu_idx, int is_softmuu); |
| 98 | #define cpu_handle_mmu_fault cpu_s390x_handle_mmu_fault |
| 99 | |
| 100 | #define TARGET_PAGE_BITS 12 |
| 101 | |
Richard Henderson | 5270589 | 2010-03-10 14:33:23 -0800 | [diff] [blame] | 102 | /* ??? This is certainly wrong for 64-bit s390x, but given that only KVM |
| 103 | emulation actually works, this is good enough for a placeholder. */ |
| 104 | #define TARGET_PHYS_ADDR_SPACE_BITS 32 |
| 105 | #define TARGET_VIRT_ADDR_SPACE_BITS 32 |
| 106 | |
Alexander Graf | 10c339a | 2009-12-05 12:44:26 +0100 | [diff] [blame] | 107 | #ifndef CONFIG_USER_ONLY |
Blue Swirl | 64b85a8 | 2011-01-23 16:21:20 +0000 | [diff] [blame] | 108 | int s390_virtio_hypercall(CPUState *env); |
| 109 | void kvm_s390_virtio_irq(CPUState *env, int config_change, uint64_t token); |
| 110 | CPUState *s390_cpu_addr2state(uint16_t cpu_addr); |
Alexander Graf | 10c339a | 2009-12-05 12:44:26 +0100 | [diff] [blame] | 111 | #endif |
| 112 | |
| 113 | |
Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 114 | #define cpu_init cpu_s390x_init |
| 115 | #define cpu_exec cpu_s390x_exec |
| 116 | #define cpu_gen_code cpu_s390x_gen_code |
| 117 | |
| 118 | #include "cpu-all.h" |
Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 119 | |
| 120 | #define EXCP_OPEX 1 /* operation exception (sigill) */ |
| 121 | #define EXCP_SVC 2 /* supervisor call (syscall) */ |
| 122 | #define EXCP_ADDR 5 /* addressing exception */ |
| 123 | #define EXCP_EXECUTE_SVC 0xff00000 /* supervisor call via execute insn */ |
| 124 | |
Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 125 | static inline void cpu_get_tb_cpu_state(CPUState* env, target_ulong *pc, |
| 126 | target_ulong *cs_base, int *flags) |
| 127 | { |
| 128 | *pc = env->psw.addr; |
| 129 | /* XXX this is correct for user-mode emulation, but needs |
| 130 | * the asce register information as well when softmmu |
| 131 | * is implemented in the future */ |
| 132 | *cs_base = 0; |
| 133 | *flags = env->psw.mask; |
| 134 | } |
Alexander Graf | 10c339a | 2009-12-05 12:44:26 +0100 | [diff] [blame] | 135 | |
| 136 | /* Program Status Word. */ |
| 137 | #define S390_PSWM_REGNUM 0 |
| 138 | #define S390_PSWA_REGNUM 1 |
| 139 | /* General Purpose Registers. */ |
| 140 | #define S390_R0_REGNUM 2 |
| 141 | #define S390_R1_REGNUM 3 |
| 142 | #define S390_R2_REGNUM 4 |
| 143 | #define S390_R3_REGNUM 5 |
| 144 | #define S390_R4_REGNUM 6 |
| 145 | #define S390_R5_REGNUM 7 |
| 146 | #define S390_R6_REGNUM 8 |
| 147 | #define S390_R7_REGNUM 9 |
| 148 | #define S390_R8_REGNUM 10 |
| 149 | #define S390_R9_REGNUM 11 |
| 150 | #define S390_R10_REGNUM 12 |
| 151 | #define S390_R11_REGNUM 13 |
| 152 | #define S390_R12_REGNUM 14 |
| 153 | #define S390_R13_REGNUM 15 |
| 154 | #define S390_R14_REGNUM 16 |
| 155 | #define S390_R15_REGNUM 17 |
| 156 | /* Access Registers. */ |
| 157 | #define S390_A0_REGNUM 18 |
| 158 | #define S390_A1_REGNUM 19 |
| 159 | #define S390_A2_REGNUM 20 |
| 160 | #define S390_A3_REGNUM 21 |
| 161 | #define S390_A4_REGNUM 22 |
| 162 | #define S390_A5_REGNUM 23 |
| 163 | #define S390_A6_REGNUM 24 |
| 164 | #define S390_A7_REGNUM 25 |
| 165 | #define S390_A8_REGNUM 26 |
| 166 | #define S390_A9_REGNUM 27 |
| 167 | #define S390_A10_REGNUM 28 |
| 168 | #define S390_A11_REGNUM 29 |
| 169 | #define S390_A12_REGNUM 30 |
| 170 | #define S390_A13_REGNUM 31 |
| 171 | #define S390_A14_REGNUM 32 |
| 172 | #define S390_A15_REGNUM 33 |
| 173 | /* Floating Point Control Word. */ |
| 174 | #define S390_FPC_REGNUM 34 |
| 175 | /* Floating Point Registers. */ |
| 176 | #define S390_F0_REGNUM 35 |
| 177 | #define S390_F1_REGNUM 36 |
| 178 | #define S390_F2_REGNUM 37 |
| 179 | #define S390_F3_REGNUM 38 |
| 180 | #define S390_F4_REGNUM 39 |
| 181 | #define S390_F5_REGNUM 40 |
| 182 | #define S390_F6_REGNUM 41 |
| 183 | #define S390_F7_REGNUM 42 |
| 184 | #define S390_F8_REGNUM 43 |
| 185 | #define S390_F9_REGNUM 44 |
| 186 | #define S390_F10_REGNUM 45 |
| 187 | #define S390_F11_REGNUM 46 |
| 188 | #define S390_F12_REGNUM 47 |
| 189 | #define S390_F13_REGNUM 48 |
| 190 | #define S390_F14_REGNUM 49 |
| 191 | #define S390_F15_REGNUM 50 |
| 192 | /* Total. */ |
| 193 | #define S390_NUM_REGS 51 |
| 194 | |
| 195 | /* Pseudo registers -- PC and condition code. */ |
| 196 | #define S390_PC_REGNUM S390_NUM_REGS |
| 197 | #define S390_CC_REGNUM (S390_NUM_REGS+1) |
| 198 | #define S390_NUM_PSEUDO_REGS 2 |
| 199 | #define S390_NUM_TOTAL_REGS (S390_NUM_REGS+2) |
| 200 | |
| 201 | |
| 202 | |
| 203 | /* Program Status Word. */ |
| 204 | #define S390_PSWM_REGNUM 0 |
| 205 | #define S390_PSWA_REGNUM 1 |
| 206 | /* General Purpose Registers. */ |
| 207 | #define S390_R0_REGNUM 2 |
| 208 | #define S390_R1_REGNUM 3 |
| 209 | #define S390_R2_REGNUM 4 |
| 210 | #define S390_R3_REGNUM 5 |
| 211 | #define S390_R4_REGNUM 6 |
| 212 | #define S390_R5_REGNUM 7 |
| 213 | #define S390_R6_REGNUM 8 |
| 214 | #define S390_R7_REGNUM 9 |
| 215 | #define S390_R8_REGNUM 10 |
| 216 | #define S390_R9_REGNUM 11 |
| 217 | #define S390_R10_REGNUM 12 |
| 218 | #define S390_R11_REGNUM 13 |
| 219 | #define S390_R12_REGNUM 14 |
| 220 | #define S390_R13_REGNUM 15 |
| 221 | #define S390_R14_REGNUM 16 |
| 222 | #define S390_R15_REGNUM 17 |
| 223 | /* Access Registers. */ |
| 224 | #define S390_A0_REGNUM 18 |
| 225 | #define S390_A1_REGNUM 19 |
| 226 | #define S390_A2_REGNUM 20 |
| 227 | #define S390_A3_REGNUM 21 |
| 228 | #define S390_A4_REGNUM 22 |
| 229 | #define S390_A5_REGNUM 23 |
| 230 | #define S390_A6_REGNUM 24 |
| 231 | #define S390_A7_REGNUM 25 |
| 232 | #define S390_A8_REGNUM 26 |
| 233 | #define S390_A9_REGNUM 27 |
| 234 | #define S390_A10_REGNUM 28 |
| 235 | #define S390_A11_REGNUM 29 |
| 236 | #define S390_A12_REGNUM 30 |
| 237 | #define S390_A13_REGNUM 31 |
| 238 | #define S390_A14_REGNUM 32 |
| 239 | #define S390_A15_REGNUM 33 |
| 240 | /* Floating Point Control Word. */ |
| 241 | #define S390_FPC_REGNUM 34 |
| 242 | /* Floating Point Registers. */ |
| 243 | #define S390_F0_REGNUM 35 |
| 244 | #define S390_F1_REGNUM 36 |
| 245 | #define S390_F2_REGNUM 37 |
| 246 | #define S390_F3_REGNUM 38 |
| 247 | #define S390_F4_REGNUM 39 |
| 248 | #define S390_F5_REGNUM 40 |
| 249 | #define S390_F6_REGNUM 41 |
| 250 | #define S390_F7_REGNUM 42 |
| 251 | #define S390_F8_REGNUM 43 |
| 252 | #define S390_F9_REGNUM 44 |
| 253 | #define S390_F10_REGNUM 45 |
| 254 | #define S390_F11_REGNUM 46 |
| 255 | #define S390_F12_REGNUM 47 |
| 256 | #define S390_F13_REGNUM 48 |
| 257 | #define S390_F14_REGNUM 49 |
| 258 | #define S390_F15_REGNUM 50 |
| 259 | /* Total. */ |
| 260 | #define S390_NUM_REGS 51 |
| 261 | |
| 262 | /* Pseudo registers -- PC and condition code. */ |
| 263 | #define S390_PC_REGNUM S390_NUM_REGS |
| 264 | #define S390_CC_REGNUM (S390_NUM_REGS+1) |
| 265 | #define S390_NUM_PSEUDO_REGS 2 |
| 266 | #define S390_NUM_TOTAL_REGS (S390_NUM_REGS+2) |
| 267 | |
| 268 | |
Alexander Graf | 10ec511 | 2009-12-05 12:44:21 +0100 | [diff] [blame] | 269 | #endif |