"Unknown fault 9", "Unknown fault 10", "Unknown fault 11", "Unknown fault 12",
"Unknown fault 13", "Unknown fault 14", "Unknown fault 15"
};
-#if 0
-printf("ia64_fault, vector=0x%p, ifa=%p, iip=%p, ipsr=%p, isr=%p\n",
- vector, ifa, regs->cr_iip, regs->cr_ipsr, isr);
-#endif
+
+ printf("ia64_fault, vector=0x%p, ifa=%p, iip=%p, ipsr=%p, isr=%p\n",
+ vector, ifa, regs->cr_iip, regs->cr_ipsr, isr);
+
if ((isr & IA64_ISR_NA) && ((isr & IA64_ISR_CODE_MASK) == IA64_ISR_CODE_LFETCH)) {
/*
}
switch (vector) {
- case 24: /* General Exception */
+ case 0:
+ printk("VHPT Translation.\n");
+ break;
+
+ case 4:
+ printk("Alt ITLB.\n");
+ break;
+
+ case 6:
+ printk("Instruction Key Miss.\n");
+ break;
+
+ case 7:
+ printk("Data Key Miss.\n");
+ break;
+
+ case 8:
+ printk("Dirty-bit.\n");
+ break;
+
+ case 20:
+ printk("Page Not Found.\n");
+ break;
+
+ case 21:
+ printk("Key Permission.\n");
+ break;
+
+ case 22:
+ printk("Instruction Access Rights.\n");
+ break;
+
+ case 24: /* General Exception */
code = (isr >> 4) & 0xf;
sprintf(buf, "General Exception: %s%s", reason[code],
- (code == 3) ? ((isr & (1UL << 37))
- ? " (RSE access)" : " (data access)") : "");
+ (code == 3) ? ((isr & (1UL << 37)) ? " (RSE access)" :
+ " (data access)") : "");
if (code == 8) {
# ifdef CONFIG_IA64_PRINT_HAZARDS
printk("%s[%d]: possible hazard @ ip=%016lx (pr = %016lx)\n",
- current->comm, current->pid, regs->cr_iip + ia64_psr(regs)->ri,
+ current->comm, current->pid,
+ regs->cr_iip + ia64_psr(regs)->ri,
regs->pr);
# endif
printf("ia64_fault: returning on hazard\n");
}
break;
- case 25: /* Disabled FP-Register */
- if (isr & 2) {
- //disabled_fph_fault(regs);
- //return;
- }
- sprintf(buf, "Disabled FPL fault---not supposed to happen!");
- break;
-
- case 26: /* NaT Consumption */
- if (user_mode(regs)) {
- void *addr;
-
- if (((isr >> 4) & 0xf) == 2) {
- /* NaT page consumption */
- //sig = SIGSEGV;
- //code = SEGV_ACCERR;
- addr = (void *) ifa;
- } else {
- /* register NaT consumption */
- //sig = SIGILL;
- //code = ILL_ILLOPN;
- addr = (void *) (regs->cr_iip + ia64_psr(regs)->ri);
- }
- //siginfo.si_signo = sig;
- //siginfo.si_code = code;
- //siginfo.si_errno = 0;
- //siginfo.si_addr = addr;
- //siginfo.si_imm = vector;
- //siginfo.si_flags = __ISR_VALID;
- //siginfo.si_isr = isr;
- //force_sig_info(sig, &siginfo, current);
- //return;
- } //else if (ia64_done_with_exception(regs))
- //return;
- sprintf(buf, "NaT consumption");
- break;
-
- case 31: /* Unsupported Data Reference */
- if (user_mode(regs)) {
- //siginfo.si_signo = SIGILL;
- //siginfo.si_code = ILL_ILLOPN;
- //siginfo.si_errno = 0;
- //siginfo.si_addr = (void *) (regs->cr_iip + ia64_psr(regs)->ri);
- //siginfo.si_imm = vector;
- //siginfo.si_flags = __ISR_VALID;
- //siginfo.si_isr = isr;
- //force_sig_info(SIGILL, &siginfo, current);
- //return;
- }
- sprintf(buf, "Unsupported data reference");
+ case 25:
+ printk("Disabled FP-Register.\n");
break;
- case 29: /* Debug */
- case 35: /* Taken Branch Trap */
- case 36: /* Single Step Trap */
- //if (fsys_mode(current, regs)) {}
- switch (vector) {
- case 29:
- //siginfo.si_code = TRAP_HWBKPT;
-#ifdef CONFIG_ITANIUM
- /*
- * Erratum 10 (IFA may contain incorrect address) now has
- * "NoFix" status. There are no plans for fixing this.
- */
- if (ia64_psr(regs)->is == 0)
- ifa = regs->cr_iip;
-#endif
- break;
- case 35: ifa = 0; break;
- case 36: ifa = 0; break;
- //case 35: siginfo.si_code = TRAP_BRANCH; ifa = 0; break;
- //case 36: siginfo.si_code = TRAP_TRACE; ifa = 0; break;
- }
- //siginfo.si_signo = SIGTRAP;
- //siginfo.si_errno = 0;
- //siginfo.si_addr = (void *) ifa;
- //siginfo.si_imm = 0;
- //siginfo.si_flags = __ISR_VALID;
- //siginfo.si_isr = isr;
- //force_sig_info(SIGTRAP, &siginfo, current);
- //return;
-
- case 32: /* fp fault */
- case 33: /* fp trap */
- //result = handle_fpu_swa((vector == 32) ? 1 : 0, regs, isr);
- //if ((result < 0) || (current->thread.flags & IA64_THREAD_FPEMU_SIGFPE)) {
- //siginfo.si_signo = SIGFPE;
- //siginfo.si_errno = 0;
- //siginfo.si_code = FPE_FLTINV;
- //siginfo.si_addr = (void *) (regs->cr_iip + ia64_psr(regs)->ri);
- //siginfo.si_flags = __ISR_VALID;
- //siginfo.si_isr = isr;
- //siginfo.si_imm = 0;
- //force_sig_info(SIGFPE, &siginfo, current);
- //}
- //return;
- sprintf(buf, "FP fault/trap");
- break;
-
- case 34:
- if (isr & 0x2) {
- /* Lower-Privilege Transfer Trap */
- /*
- * Just clear PSR.lp and then return immediately: all the
- * interesting work (e.g., signal delivery is done in the kernel
- * exit path).
- */
- //ia64_psr(regs)->lp = 0;
- //return;
- sprintf(buf, "Lower-Privilege Transfer trap");
- } else {
- /* Unimplemented Instr. Address Trap */
- if (user_mode(regs)) {
- //siginfo.si_signo = SIGILL;
- //siginfo.si_code = ILL_BADIADDR;
- //siginfo.si_errno = 0;
- //siginfo.si_flags = 0;
- //siginfo.si_isr = 0;
- //siginfo.si_imm = 0;
- //siginfo.si_addr = (void *) (regs->cr_iip + ia64_psr(regs)->ri);
- //force_sig_info(SIGILL, &siginfo, current);
- //return;
- }
- sprintf(buf, "Unimplemented Instruction Address fault");
- }
+ case 26:
+ printk("NaT consumption.\n");
break;
- case 45:
- printk(KERN_ERR "Unexpected IA-32 exception (Trap 45)\n");
- printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx\n",
- regs->cr_iip, ifa, isr);
- //force_sig(SIGSEGV, current);
+ case 29:
+ printk("Debug.\n");
break;
- case 46:
- printk(KERN_ERR "Unexpected IA-32 intercept trap (Trap 46)\n");
- printk(KERN_ERR " iip - 0x%lx, ifa - 0x%lx, isr - 0x%lx, iim - 0x%lx\n",
- regs->cr_iip, ifa, isr, iim);
- //force_sig(SIGSEGV, current);
- return;
+ case 30:
+ printk("Unaligned Reference.\n");
+ break;
+
+ case 31:
+ printk("Unsupported data reference.\n");
+ break;
- case 47:
- sprintf(buf, "IA-32 Interruption Fault (int 0x%lx)", isr >> 16);
+ case 32:
+ printk("Floating-Point Fault.\n");
break;
- default:
- sprintf(buf, "Fault %lu", vector);
+ case 33:
+ printk("Floating-Point Trap.\n");
+ break;
+
+ case 34:
+ printk("Lower Privilege Transfer Trap.\n");
+ break;
+
+ case 35:
+ printk("Taken Branch Trap.\n");
+ break;
+
+ case 36:
+ printk("Single Step Trap.\n");
+ break;
+
+ case 45:
+ printk("IA-32 Exception.\n");
+ break;
+
+ case 46:
+ printk("IA-32 Intercept.\n");
+ break;
+
+ case 47:
+ printk("IA-32 Interrupt.\n");
+ break;
+
+ default:
+ printk("Fault %lu\n", vector);
break;
}
- //die_if_kernel(buf, regs, error);
-printk("ia64_fault: %s: reflecting\n",buf);
-PSCB(current,itir) = vcpu_get_itir_on_fault(current,ifa);
-PSCB(current,ifa) = ifa;
-reflect_interruption(isr,regs,IA64_GENEX_VECTOR);
-//while(1);
- //force_sig(SIGILL, current);
+
+ show_registers(regs);
+ panic("Fault in Xen.\n");
}
unsigned long running_on_sim = 0;
projects / xen.git / commitdiff