4  *  Copyright (c) 2003-2008 Fabrice Bellard
23 #include "user-internals.h"
25 #include "signal-common.h"
60     return -1;  in ppc_dcr_read()
65     return -1;  in ppc_dcr_write()
91         case POWERPC_EXCP_MCHECK:   /* Machine check exception               */  in cpu_loop()
92             cpu_abort(cs, "Machine check exception while in user mode. "  in cpu_loop()
99                             env->spr[SPR_DAR]);  in cpu_loop()
107             /* XXX: check this */  in cpu_loop()
108             switch (env->error_code & ~0xF) {  in cpu_loop()
111                 switch (env->error_code & 0xF) {  in cpu_loop()
139                               env->error_code);  in cpu_loop()
146                 switch (env->error_code & 0xF) {  in cpu_loop()
161                               env->error_code & 0xF);  in cpu_loop()
168                 switch (env->error_code & 0xF) {  in cpu_loop()
177                               env->error_code & 0xF);  in cpu_loop()
189                           env->error_code);  in cpu_loop()
192             force_sig_fault(si_signo, si_code, env->nip);  in cpu_loop()
194         case POWERPC_EXCP_FPU:      /* Floating-point unavailable exception  */  in cpu_loop()
196         case POWERPC_EXCP_SPEU:     /* SPE/embedded floating-point unavail.  */  in cpu_loop()
198             force_sig_fault(TARGET_SIGILL, TARGET_ILL_COPROC, env->nip);  in cpu_loop()
209         case POWERPC_EXCP_FIT:      /* Fixed-interval timer interrupt        */  in cpu_loop()
225         case POWERPC_EXCP_EFPDI:    /* Embedded floating-point data IRQ      */  in cpu_loop()
226             cpu_abort(cs, "Embedded floating-point data IRQ not handled\n");  in cpu_loop()
228         case POWERPC_EXCP_EFPRI:    /* Embedded floating-point round IRQ     */  in cpu_loop()
229             cpu_abort(cs, "Embedded floating-point round IRQ not handled\n");  in cpu_loop()
261              * we use this exception to emulate step-by-step execution mode.  in cpu_loop()
290                       "while in user-mode. Aborting");  in cpu_loop()
293             cpu_abort(cs, "Data load TLB exception while in user-mode. "  in cpu_loop()
297             cpu_abort(cs, "Data store TLB exception while in user-mode. "  in cpu_loop()
300         case POWERPC_EXCP_FPA:      /* Floating-point assist exception       */  in cpu_loop()
301             cpu_abort(cs, "Floating-point assist exception not handled\n");  in cpu_loop()
321         case POWERPC_EXCP_SOFTP:    /* Soft patch exception                  */  in cpu_loop()
322             cpu_abort(cs, "Soft patch exception not handled\n");  in cpu_loop()
329             /* system call in user-mode emulation */  in cpu_loop()
334             env->crf[0] &= ~0x1;  in cpu_loop()
335             env->nip += 4;  in cpu_loop()
336             ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],  in cpu_loop()
337                              env->gpr[5], env->gpr[6], env->gpr[7],  in cpu_loop()
338                              env->gpr[8], 0, 0);  in cpu_loop()
339             if (ret == -QEMU_ERESTARTSYS) {  in cpu_loop()
340                 env->nip -= 4;  in cpu_loop()
343             if (ret == (target_ulong)(-QEMU_ESIGRETURN)) {  in cpu_loop()
348             if (ret > (target_ulong)(-515)) {  in cpu_loop()
349                 env->crf[0] |= 0x1;  in cpu_loop()
350                 ret = -ret;  in cpu_loop()
352             env->gpr[3] = ret;  in cpu_loop()
355             force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->nip);  in cpu_loop()
376             env->reserve_addr = -1;  in cpu_loop()
386     int flag = (env->insns_flags2 & PPC2_BOOKE206) ? MSR_CM : MSR_SF;  in target_cpu_copy_regs()
388     ppc_store_msr(env, env->msr & ~((target_ulong)1 << flag));  in target_cpu_copy_regs()
390     ppc_store_msr(env, env->msr | (target_ulong)1 << flag);  in target_cpu_copy_regs()
394     env->nip = regs->nip;  in target_cpu_copy_regs()
396         env->gpr[i] = regs->gpr[i];  in target_cpu_copy_regs()