1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/trap.h> 27 #include <sys/machtrap.h> 28 #include <sys/machsystm.h> 29 #include <sys/cpu_module.h> 30 #include <sys/panic.h> 31 #include <sys/uadmin.h> 32 #include <sys/kobj.h> 33 #include <vm/hat_sfmmu.h> 34 #include <sys/reboot.h> 35 36 #ifdef TRAPTRACE 37 #include <sys/traptrace.h> 38 #endif 39 40 void showregs(unsigned, struct regs *, caddr_t, uint_t); 41 42 extern int tudebug; 43 44 void 45 mmu_print_sfsr(uint_t sfsr) 46 { 47 printf("MMU sfsr=%x:", sfsr); 48 switch (X_FAULT_TYPE(sfsr)) { 49 case FT_NONE: 50 printf(" No error"); 51 break; 52 case FT_PRIV: 53 printf(" Privilege violation"); 54 break; 55 case FT_SPEC_LD: 56 printf(" Speculative load on E-bit page"); 57 break; 58 case FT_ATOMIC_NC: 59 printf(" Atomic to uncacheable page"); 60 break; 61 case FT_ILL_ALT: 62 printf(" Illegal lda or sta"); 63 break; 64 case FT_NFO: 65 printf(" Normal access to NFO page"); 66 break; 67 case FT_RANGE: 68 printf(" Data or instruction address out of range"); 69 break; 70 case FT_RANGE_REG: 71 printf(" Jump to register out of range"); 72 break; 73 default: 74 printf(" Unknown error"); 75 break; 76 } 77 if (sfsr) { 78 printf(" on ASI 0x%x E %d CID %d PRIV %d W %d OW %d FV %d", 79 (sfsr & SFSR_ASI) >> SFSR_ASI_SHIFT, 80 (sfsr & SFSR_E) != 0, 81 (sfsr & SFSR_CTX) >> SFSR_CT_SHIFT, 82 (sfsr & SFSR_PR) != 0, 83 (sfsr & SFSR_W) != 0, 84 (sfsr & SFSR_OW) != 0, 85 (sfsr & SFSR_FV) != 0); 86 } 87 printf("\n"); 88 } 89 90 #ifdef TRAPWINDOW 91 long trap_window[25]; 92 #endif /* TRAPWINDOW */ 93 94 /* 95 * Print out debugging info. 96 */ 97 /*ARGSUSED*/ 98 void 99 showregs(uint_t type, struct regs *rp, caddr_t addr, uint_t mmu_fsr) 100 { 101 int s; 102 103 s = spl7(); 104 type &= ~T_USER; 105 printf("%s: ", PTOU(curproc)->u_comm); 106 107 switch (type) { 108 case T_SYS_RTT_ALIGN: 109 case T_ALIGNMENT: 110 printf("alignment error:\n"); 111 break; 112 case T_INSTR_EXCEPTION: 113 printf("text access exception:\n"); 114 break; 115 case T_DATA_EXCEPTION: 116 printf("data access exception:\n"); 117 break; 118 case T_PRIV_INSTR: 119 printf("privileged instruction fault:\n"); 120 break; 121 case T_UNIMP_INSTR: 122 printf("illegal instruction fault:\n"); 123 break; 124 case T_IDIV0: 125 printf("integer divide zero trap:\n"); 126 break; 127 case T_DIV0: 128 printf("zero divide trap:\n"); 129 break; 130 case T_INT_OVERFLOW: 131 printf("integer overflow:\n"); 132 break; 133 case T_BREAKPOINT: 134 printf("breakpoint trap:\n"); 135 break; 136 case T_TAG_OVERFLOW: 137 printf("tag overflow:\n"); 138 break; 139 default: 140 if (type >= T_SOFTWARE_TRAP && type <= T_ESOFTWARE_TRAP) 141 printf("software trap 0x%x\n", type - T_SOFTWARE_TRAP); 142 else 143 printf("trap type = 0x%x\n", type); 144 break; 145 } 146 if (type == T_DATA_EXCEPTION || type == T_INSTR_EXCEPTION) { 147 mmu_print_sfsr(mmu_fsr); 148 } else if (addr) { 149 printf("addr=0x%p\n", (void *)addr); 150 } 151 152 printf("pid=%d, pc=0x%lx, sp=0x%llx, tstate=0x%llx, context=0x%x\n", 153 (ttoproc(curthread) && ttoproc(curthread)->p_pidp) ? 154 (ttoproc(curthread)->p_pid) : 0, rp->r_pc, rp->r_sp, 155 rp->r_tstate, sfmmu_getctx_sec()); 156 if (USERMODE(rp->r_tstate)) { 157 printf("o0-o7: %llx, %llx, %llx, %llx, %llx, %llx, " 158 "%llx, %llx\n", rp->r_o0, rp->r_o1, rp->r_o2, rp->r_o3, 159 rp->r_o4, rp->r_o5, rp->r_o6, rp->r_o7); 160 } 161 printf("g1-g7: %llx, %llx, %llx, %llx, %llx, %llx, %llx\n", 162 rp->r_g1, rp->r_g2, rp->r_g3, 163 rp->r_g4, rp->r_g5, rp->r_g6, rp->r_g7); 164 165 #ifdef TRAPWINDOW 166 printf("trap_window: wim=%x\n", trap_window[24]); 167 printf("o0-o7: %x, %x, %x, %x, %x, %x, %x, %x\n", 168 trap_window[0], trap_window[1], trap_window[2], trap_window[3], 169 trap_window[4], trap_window[5], trap_window[6], trap_window[7]); 170 printf("l0-l7: %x, %x, %x, %x, %x, %x, %x, %x\n", 171 trap_window[8], trap_window[9], trap_window[10], trap_window[11], 172 trap_window[12], trap_window[13], trap_window[14], trap_window[15]); 173 printf("i0-i7: %x, %x, %x, %x, %x, %x, %x, %x\n", 174 trap_window[16], trap_window[17], trap_window[18], trap_window[19], 175 trap_window[20], trap_window[21], trap_window[22], trap_window[23]); 176 #endif /* TRAPWINDOW */ 177 if (tudebug > 1 && (boothowto & RB_DEBUG)) { 178 debug_enter((char *)NULL); 179 } 180 splx(s); 181 } 182 183 static void 184 ptl1_showtrap(ptl1_state_t *pstate) 185 { 186 ptl1_regs_t *rp = &pstate->ptl1_regs; 187 short i, j, maxtl = rp->ptl1_trap_regs[0].ptl1_tl; 188 189 printf("%%tl %%tpc %%tnpc %%tstate" 190 " %%tt\n"); 191 192 for (i = maxtl - 1; i >= 0; i--) { 193 ptl1_trapregs_t *ptp = &rp->ptl1_trap_regs[i]; 194 uint64_t tstate = ptp->ptl1_tstate; 195 uint32_t ccr, asi, cwp, pstate; 196 197 cwp = (tstate >> TSTATE_CWP_SHIFT) & TSTATE_CWP_MASK; 198 pstate = (tstate >> TSTATE_PSTATE_SHIFT) & TSTATE_PSTATE_MASK; 199 asi = (tstate >> TSTATE_ASI_SHIFT) & TSTATE_ASI_MASK; 200 ccr = (tstate >> TSTATE_CCR_SHIFT) & TSTATE_CCR_MASK; 201 202 printf(" %d %016" PRIx64 " %016" PRIx64 " %010" PRIx64 203 " %03x\n", ptp->ptl1_tl, ptp->ptl1_tpc, 204 ptp->ptl1_tnpc, tstate, ptp->ptl1_tt); 205 printf(" %%ccr: %02x %%asi: %02x %%cwp: %x " 206 "%%pstate: %b\n", ccr, asi, cwp, pstate, PSTATE_BITS); 207 } 208 209 printf("%%g0-3: %016x %016" PRIx64 " %016" PRIx64 " %016" 210 PRIx64 "\n", 0, rp->ptl1_g1, rp->ptl1_g2, rp->ptl1_g3); 211 printf("%%g4-7: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" 212 PRIx64 "\n", rp->ptl1_g4, rp->ptl1_g5, rp->ptl1_g6, rp->ptl1_g7); 213 214 i = rp->ptl1_cwp; 215 j = rp->ptl1_canrestore; 216 for (; j >= 0; i--, j--) { 217 struct rwindow *wp; 218 ulong_t off; 219 char *sym; 220 221 if (i < 0) 222 i += MAXWIN; 223 224 wp = &rp->ptl1_rwindow[i]; 225 226 if ((sym = kobj_getsymname(wp->rw_in[7], &off)) != NULL) { 227 printf("Register window %d, caller %s+%lx\n", 228 i, sym, off); 229 } else { 230 printf("Register window %d, caller %lx\n", 231 i, wp->rw_in[7]); 232 } 233 234 if (i == rp->ptl1_cwp) { 235 struct rwindow *nwp; 236 237 if (i == MAXWIN - 1) 238 nwp = &rp->ptl1_rwindow[0]; 239 else 240 nwp = &rp->ptl1_rwindow[i+1]; 241 printf("%%o0-3: %016lx %016lx %016lx %016lx\n" 242 "%%o4-7: %016lx %016lx %016lx %016lx\n", 243 nwp->rw_in[0], nwp->rw_in[1], nwp->rw_in[2], 244 nwp->rw_in[3], nwp->rw_in[4], nwp->rw_in[5], 245 nwp->rw_in[6], nwp->rw_in[7]); 246 } 247 printf("%%l0-3: %016lx %016lx %016lx %016lx\n" 248 "%%l4-7: %016lx %016lx %016lx %016lx\n", 249 wp->rw_local[0], wp->rw_local[1], wp->rw_local[2], 250 wp->rw_local[3], wp->rw_local[4], wp->rw_local[5], 251 wp->rw_local[6], wp->rw_local[7]); 252 253 printf("%%i0-3: %016lx %016lx %016lx %016lx\n" 254 "%%i4-7: %016lx %016lx %016lx %016lx\n", 255 wp->rw_in[0], wp->rw_in[1], wp->rw_in[2], wp->rw_in[3], 256 wp->rw_in[4], wp->rw_in[5], wp->rw_in[6], wp->rw_in[7]); 257 } 258 } 259 260 void 261 panic_showtrap(struct panic_trap_info *tip) 262 { 263 ptl1_state_t *pstate = &CPU->cpu_m.ptl1_state; 264 /* 265 * If ptl1_panic() was called, print out the information 266 * saved in the ptl1_state struture. 267 */ 268 if (pstate->ptl1_entry_count) { 269 ptl1_showtrap(pstate); 270 return; 271 } 272 273 showregs(tip->trap_type, tip->trap_regs, tip->trap_addr, 274 tip->trap_mmu_fsr); 275 } 276 277 static void 278 ptl1_savetrap(panic_data_t *pdp, ptl1_state_t *pstate) 279 { 280 ptl1_regs_t *rp = &pstate->ptl1_regs; 281 short i, maxtl = rp->ptl1_trap_regs[0].ptl1_tl; 282 panic_nv_t *pnv = PANICNVGET(pdp); 283 char name[PANICNVNAMELEN]; 284 285 for (i = maxtl - 1; i >= 0; i--) { 286 ptl1_trapregs_t *ptp = &rp->ptl1_trap_regs[i]; 287 288 (void) snprintf(name, sizeof (name), "tl[%d]", i); 289 PANICNVADD(pnv, name, ptp->ptl1_tl); 290 (void) snprintf(name, sizeof (name), "tt[%d]", i); 291 PANICNVADD(pnv, name, ptp->ptl1_tt); 292 (void) snprintf(name, sizeof (name), "tpc[%d]", i); 293 PANICNVADD(pnv, name, ptp->ptl1_tpc); 294 (void) snprintf(name, sizeof (name), "tnpc[%d]", i); 295 PANICNVADD(pnv, name, ptp->ptl1_tnpc); 296 (void) snprintf(name, sizeof (name), "tstate[%d]", i); 297 PANICNVADD(pnv, name, ptp->ptl1_tstate); 298 } 299 300 PANICNVSET(pdp, pnv); 301 } 302 303 void 304 panic_savetrap(panic_data_t *pdp, struct panic_trap_info *tip) 305 { 306 panic_nv_t *pnv; 307 ptl1_state_t *pstate = &CPU->cpu_m.ptl1_state; 308 /* 309 * If ptl1_panic() was called, save the trap registers 310 * stored in the ptl1_state struture. 311 */ 312 if (pstate->ptl1_entry_count) { 313 ptl1_savetrap(pdp, pstate); 314 return; 315 } 316 317 panic_saveregs(pdp, tip->trap_regs); 318 pnv = PANICNVGET(pdp); 319 320 PANICNVADD(pnv, "sfsr", tip->trap_mmu_fsr); 321 PANICNVADD(pnv, "sfar", tip->trap_addr); 322 PANICNVADD(pnv, "tt", tip->trap_type); 323 324 PANICNVSET(pdp, pnv); 325 } 326