1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Generate definitions needed by assembly language modules. 4 * This code generates raw asm output which is post-processed to extract 5 * and format the required data. 6 */ 7 8 #define ASM_OFFSETS_C 9 10 #include <linux/kbuild.h> 11 #include <linux/kvm_host.h> 12 #include <linux/sched.h> 13 #include <linux/purgatory.h> 14 #include <asm/idle.h> 15 #include <asm/vdso.h> 16 #include <asm/pgtable.h> 17 #include <asm/gmap.h> 18 #include <asm/nmi.h> 19 20 /* 21 * Make sure that the compiler is new enough. We want a compiler that 22 * is known to work with the "Q" assembler constraint. 23 */ 24 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 3) 25 #error Your compiler is too old; please use version 4.3 or newer 26 #endif 27 28 int main(void) 29 { 30 /* task struct offsets */ 31 OFFSET(__TASK_stack, task_struct, stack); 32 OFFSET(__TASK_thread, task_struct, thread); 33 OFFSET(__TASK_pid, task_struct, pid); 34 BLANK(); 35 /* thread struct offsets */ 36 OFFSET(__THREAD_ksp, thread_struct, ksp); 37 OFFSET(__THREAD_sysc_table, thread_struct, sys_call_table); 38 OFFSET(__THREAD_last_break, thread_struct, last_break); 39 OFFSET(__THREAD_FPU_fpc, thread_struct, fpu.fpc); 40 OFFSET(__THREAD_FPU_regs, thread_struct, fpu.regs); 41 OFFSET(__THREAD_per_cause, thread_struct, per_event.cause); 42 OFFSET(__THREAD_per_address, thread_struct, per_event.address); 43 OFFSET(__THREAD_per_paid, thread_struct, per_event.paid); 44 OFFSET(__THREAD_trap_tdb, thread_struct, trap_tdb); 45 BLANK(); 46 /* thread info offsets */ 47 OFFSET(__TI_flags, task_struct, thread_info.flags); 48 BLANK(); 49 /* pt_regs offsets */ 50 OFFSET(__PT_ARGS, pt_regs, args); 51 OFFSET(__PT_PSW, pt_regs, psw); 52 OFFSET(__PT_GPRS, pt_regs, gprs); 53 OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2); 54 OFFSET(__PT_INT_CODE, pt_regs, int_code); 55 OFFSET(__PT_INT_PARM, pt_regs, int_parm); 56 OFFSET(__PT_INT_PARM_LONG, pt_regs, int_parm_long); 57 OFFSET(__PT_FLAGS, pt_regs, flags); 58 DEFINE(__PT_SIZE, sizeof(struct pt_regs)); 59 BLANK(); 60 /* stack_frame offsets */ 61 OFFSET(__SF_BACKCHAIN, stack_frame, back_chain); 62 OFFSET(__SF_GPRS, stack_frame, gprs); 63 OFFSET(__SF_EMPTY, stack_frame, empty1); 64 OFFSET(__SF_SIE_CONTROL, stack_frame, empty1[0]); 65 OFFSET(__SF_SIE_SAVEAREA, stack_frame, empty1[1]); 66 OFFSET(__SF_SIE_REASON, stack_frame, empty1[2]); 67 OFFSET(__SF_SIE_FLAGS, stack_frame, empty1[3]); 68 BLANK(); 69 /* timeval/timezone offsets for use by vdso */ 70 OFFSET(__VDSO_UPD_COUNT, vdso_data, tb_update_count); 71 OFFSET(__VDSO_XTIME_STAMP, vdso_data, xtime_tod_stamp); 72 OFFSET(__VDSO_XTIME_SEC, vdso_data, xtime_clock_sec); 73 OFFSET(__VDSO_XTIME_NSEC, vdso_data, xtime_clock_nsec); 74 OFFSET(__VDSO_XTIME_CRS_SEC, vdso_data, xtime_coarse_sec); 75 OFFSET(__VDSO_XTIME_CRS_NSEC, vdso_data, xtime_coarse_nsec); 76 OFFSET(__VDSO_WTOM_SEC, vdso_data, wtom_clock_sec); 77 OFFSET(__VDSO_WTOM_NSEC, vdso_data, wtom_clock_nsec); 78 OFFSET(__VDSO_WTOM_CRS_SEC, vdso_data, wtom_coarse_sec); 79 OFFSET(__VDSO_WTOM_CRS_NSEC, vdso_data, wtom_coarse_nsec); 80 OFFSET(__VDSO_TIMEZONE, vdso_data, tz_minuteswest); 81 OFFSET(__VDSO_ECTG_OK, vdso_data, ectg_available); 82 OFFSET(__VDSO_TK_MULT, vdso_data, tk_mult); 83 OFFSET(__VDSO_TK_SHIFT, vdso_data, tk_shift); 84 OFFSET(__VDSO_TS_DIR, vdso_data, ts_dir); 85 OFFSET(__VDSO_TS_END, vdso_data, ts_end); 86 OFFSET(__VDSO_ECTG_BASE, vdso_per_cpu_data, ectg_timer_base); 87 OFFSET(__VDSO_ECTG_USER, vdso_per_cpu_data, ectg_user_time); 88 OFFSET(__VDSO_CPU_NR, vdso_per_cpu_data, cpu_nr); 89 OFFSET(__VDSO_NODE_ID, vdso_per_cpu_data, node_id); 90 BLANK(); 91 /* constants used by the vdso */ 92 DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME); 93 DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC); 94 DEFINE(__CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE); 95 DEFINE(__CLOCK_MONOTONIC_COARSE, CLOCK_MONOTONIC_COARSE); 96 DEFINE(__CLOCK_THREAD_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID); 97 DEFINE(__CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); 98 DEFINE(__CLOCK_COARSE_RES, LOW_RES_NSEC); 99 BLANK(); 100 /* idle data offsets */ 101 OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter); 102 OFFSET(__CLOCK_IDLE_EXIT, s390_idle_data, clock_idle_exit); 103 OFFSET(__TIMER_IDLE_ENTER, s390_idle_data, timer_idle_enter); 104 OFFSET(__TIMER_IDLE_EXIT, s390_idle_data, timer_idle_exit); 105 BLANK(); 106 /* hardware defined lowcore locations 0x000 - 0x1ff */ 107 OFFSET(__LC_EXT_PARAMS, lowcore, ext_params); 108 OFFSET(__LC_EXT_CPU_ADDR, lowcore, ext_cpu_addr); 109 OFFSET(__LC_EXT_INT_CODE, lowcore, ext_int_code); 110 OFFSET(__LC_SVC_ILC, lowcore, svc_ilc); 111 OFFSET(__LC_SVC_INT_CODE, lowcore, svc_code); 112 OFFSET(__LC_PGM_ILC, lowcore, pgm_ilc); 113 OFFSET(__LC_PGM_INT_CODE, lowcore, pgm_code); 114 OFFSET(__LC_DATA_EXC_CODE, lowcore, data_exc_code); 115 OFFSET(__LC_MON_CLASS_NR, lowcore, mon_class_num); 116 OFFSET(__LC_PER_CODE, lowcore, per_code); 117 OFFSET(__LC_PER_ATMID, lowcore, per_atmid); 118 OFFSET(__LC_PER_ADDRESS, lowcore, per_address); 119 OFFSET(__LC_EXC_ACCESS_ID, lowcore, exc_access_id); 120 OFFSET(__LC_PER_ACCESS_ID, lowcore, per_access_id); 121 OFFSET(__LC_OP_ACCESS_ID, lowcore, op_access_id); 122 OFFSET(__LC_AR_MODE_ID, lowcore, ar_mode_id); 123 OFFSET(__LC_TRANS_EXC_CODE, lowcore, trans_exc_code); 124 OFFSET(__LC_MON_CODE, lowcore, monitor_code); 125 OFFSET(__LC_SUBCHANNEL_ID, lowcore, subchannel_id); 126 OFFSET(__LC_SUBCHANNEL_NR, lowcore, subchannel_nr); 127 OFFSET(__LC_IO_INT_PARM, lowcore, io_int_parm); 128 OFFSET(__LC_IO_INT_WORD, lowcore, io_int_word); 129 OFFSET(__LC_STFL_FAC_LIST, lowcore, stfl_fac_list); 130 OFFSET(__LC_STFLE_FAC_LIST, lowcore, stfle_fac_list); 131 OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code); 132 OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code); 133 OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address); 134 OFFSET(__LC_LAST_BREAK, lowcore, breaking_event_addr); 135 OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw); 136 OFFSET(__LC_EXT_OLD_PSW, lowcore, external_old_psw); 137 OFFSET(__LC_SVC_OLD_PSW, lowcore, svc_old_psw); 138 OFFSET(__LC_PGM_OLD_PSW, lowcore, program_old_psw); 139 OFFSET(__LC_MCK_OLD_PSW, lowcore, mcck_old_psw); 140 OFFSET(__LC_IO_OLD_PSW, lowcore, io_old_psw); 141 OFFSET(__LC_RST_NEW_PSW, lowcore, restart_psw); 142 OFFSET(__LC_EXT_NEW_PSW, lowcore, external_new_psw); 143 OFFSET(__LC_SVC_NEW_PSW, lowcore, svc_new_psw); 144 OFFSET(__LC_PGM_NEW_PSW, lowcore, program_new_psw); 145 OFFSET(__LC_MCK_NEW_PSW, lowcore, mcck_new_psw); 146 OFFSET(__LC_IO_NEW_PSW, lowcore, io_new_psw); 147 /* software defined lowcore locations 0x200 - 0xdff*/ 148 OFFSET(__LC_SAVE_AREA_SYNC, lowcore, save_area_sync); 149 OFFSET(__LC_SAVE_AREA_ASYNC, lowcore, save_area_async); 150 OFFSET(__LC_SAVE_AREA_RESTART, lowcore, save_area_restart); 151 OFFSET(__LC_CPU_FLAGS, lowcore, cpu_flags); 152 OFFSET(__LC_RETURN_PSW, lowcore, return_psw); 153 OFFSET(__LC_RETURN_MCCK_PSW, lowcore, return_mcck_psw); 154 OFFSET(__LC_SYNC_ENTER_TIMER, lowcore, sync_enter_timer); 155 OFFSET(__LC_ASYNC_ENTER_TIMER, lowcore, async_enter_timer); 156 OFFSET(__LC_MCCK_ENTER_TIMER, lowcore, mcck_enter_timer); 157 OFFSET(__LC_EXIT_TIMER, lowcore, exit_timer); 158 OFFSET(__LC_USER_TIMER, lowcore, user_timer); 159 OFFSET(__LC_SYSTEM_TIMER, lowcore, system_timer); 160 OFFSET(__LC_STEAL_TIMER, lowcore, steal_timer); 161 OFFSET(__LC_LAST_UPDATE_TIMER, lowcore, last_update_timer); 162 OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock); 163 OFFSET(__LC_INT_CLOCK, lowcore, int_clock); 164 OFFSET(__LC_MCCK_CLOCK, lowcore, mcck_clock); 165 OFFSET(__LC_CLOCK_COMPARATOR, lowcore, clock_comparator); 166 OFFSET(__LC_BOOT_CLOCK, lowcore, boot_clock); 167 OFFSET(__LC_CURRENT, lowcore, current_task); 168 OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack); 169 OFFSET(__LC_ASYNC_STACK, lowcore, async_stack); 170 OFFSET(__LC_PANIC_STACK, lowcore, panic_stack); 171 OFFSET(__LC_RESTART_STACK, lowcore, restart_stack); 172 OFFSET(__LC_RESTART_FN, lowcore, restart_fn); 173 OFFSET(__LC_RESTART_DATA, lowcore, restart_data); 174 OFFSET(__LC_RESTART_SOURCE, lowcore, restart_source); 175 OFFSET(__LC_USER_ASCE, lowcore, user_asce); 176 OFFSET(__LC_VDSO_ASCE, lowcore, vdso_asce); 177 OFFSET(__LC_LPP, lowcore, lpp); 178 OFFSET(__LC_CURRENT_PID, lowcore, current_pid); 179 OFFSET(__LC_PERCPU_OFFSET, lowcore, percpu_offset); 180 OFFSET(__LC_VDSO_PER_CPU, lowcore, vdso_per_cpu_data); 181 OFFSET(__LC_MACHINE_FLAGS, lowcore, machine_flags); 182 OFFSET(__LC_PREEMPT_COUNT, lowcore, preempt_count); 183 OFFSET(__LC_GMAP, lowcore, gmap); 184 OFFSET(__LC_BR_R1, lowcore, br_r1_trampoline); 185 /* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */ 186 OFFSET(__LC_DUMP_REIPL, lowcore, ipib); 187 /* hardware defined lowcore locations 0x1000 - 0x18ff */ 188 OFFSET(__LC_MCESAD, lowcore, mcesad); 189 OFFSET(__LC_EXT_PARAMS2, lowcore, ext_params2); 190 OFFSET(__LC_FPREGS_SAVE_AREA, lowcore, floating_pt_save_area); 191 OFFSET(__LC_GPREGS_SAVE_AREA, lowcore, gpregs_save_area); 192 OFFSET(__LC_PSW_SAVE_AREA, lowcore, psw_save_area); 193 OFFSET(__LC_PREFIX_SAVE_AREA, lowcore, prefixreg_save_area); 194 OFFSET(__LC_FP_CREG_SAVE_AREA, lowcore, fpt_creg_save_area); 195 OFFSET(__LC_TOD_PROGREG_SAVE_AREA, lowcore, tod_progreg_save_area); 196 OFFSET(__LC_CPU_TIMER_SAVE_AREA, lowcore, cpu_timer_save_area); 197 OFFSET(__LC_CLOCK_COMP_SAVE_AREA, lowcore, clock_comp_save_area); 198 OFFSET(__LC_AREGS_SAVE_AREA, lowcore, access_regs_save_area); 199 OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area); 200 OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb); 201 BLANK(); 202 /* extended machine check save area */ 203 OFFSET(__MCESA_GS_SAVE_AREA, mcesa, guarded_storage_save_area); 204 BLANK(); 205 /* gmap/sie offsets */ 206 OFFSET(__GMAP_ASCE, gmap, asce); 207 OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c); 208 OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20); 209 /* kexec_sha_region */ 210 OFFSET(__KEXEC_SHA_REGION_START, kexec_sha_region, start); 211 OFFSET(__KEXEC_SHA_REGION_LEN, kexec_sha_region, len); 212 DEFINE(__KEXEC_SHA_REGION_SIZE, sizeof(struct kexec_sha_region)); 213 return 0; 214 } 215