Skip to content

Q
qemu

openeuler / qemu

通知 10
Star 0
Fork 0
Q
qemu
提交 61190b14 编写于 作者: B bellard
浏览文件
操作

PowerPC update (Jocelyn Mayer) 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@536 c046a42c-6fe2-441c-8c8c-71466251a162
上级 9886cc16
隐藏空白更改
内联 并排
Showing with 315 addition and 86 deletion
linux-user/main.c
浏览文件 @ 61190b14
......@@ -59,44 +59,44 @@ void gemu_log(const char *fmt, ...)
va_end(ap);
}
#ifdef TARGET_I386
/***********************************************************/
/* CPUX86 core interface */
void cpu_x86_outb(CPUX86State *env, int addr, int val)
void cpu_outb(CPUState *env, int addr, int val)
{
fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
}
void cpu_x86_outw(CPUX86State *env, int addr, int val)
void cpu_outw(CPUState *env, int addr, int val)
{
fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
}
void cpu_x86_outl(CPUX86State *env, int addr, int val)
void cpu_outl(CPUState *env, int addr, int val)
{
fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
}
int cpu_x86_inb(CPUX86State *env, int addr)
int cpu_inb(CPUState *env, int addr)
{
fprintf(stderr, "inb: port=0x%04x\n", addr);
return 0;
}
int cpu_x86_inw(CPUX86State *env, int addr)
int cpu_inw(CPUState *env, int addr)
{
fprintf(stderr, "inw: port=0x%04x\n", addr);
return 0;
}
int cpu_x86_inl(CPUX86State *env, int addr)
int cpu_inl(CPUState *env, int addr)
{
fprintf(stderr, "inl: port=0x%04x\n", addr);
return 0;
}
int cpu_x86_get_pic_interrupt(CPUX86State *env)
#ifdef TARGET_I386
/***********************************************************/
/* CPUX86 core interface */
int cpu_x86_get_pic_interrupt(CPUState *env)
{
return -1;
}
......@@ -428,119 +428,346 @@ void cpu_loop (CPUSPARCState *env)
void cpu_loop(CPUPPCState *env)
{
int trapnr;
target_siginfo_t info;
int trapnr;
uint32_t ret;
for(;;) {
trapnr = cpu_ppc_exec(env);
if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
trapnr != EXCP_TRACE) {
if (loglevel > 0) {
cpu_ppc_dump_state(env, logfile, 0);
}
}
switch(trapnr) {
case EXCP_NONE:
case EXCP_INTERRUPT:
case EXCP_MTMSR: /* mtmsr instruction: */
case EXCP_BRANCH: /* branch instruction */
/* Single step mode */
break;
case EXCP_SYSCALL_USER:
/* system call */
/* WARNING:
* PPC ABI uses overflow flag in cr0 to signal an error
* in syscalls.
*/
#if 0
case EXCP_RESET: /* System reset */
fprintf(stderr, "RESET asked... Stop emulation\n");
cpu_ppc_dump_state(env, stderr, 0);
abort();
printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
#endif
case EXCP_MACHINE_CHECK: /* Machine check exception */
fprintf(stderr, "Machine check exeption... "
"See you in kernel code !\n");
cpu_ppc_dump_state(env, stderr, 0);
env->crf[0] &= ~0x1;
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
env->gpr[5], env->gpr[6], env->gpr[7],
env->gpr[8]);
if (ret > (uint32_t)(-515)) {
env->crf[0] |= 0x1;
ret = -ret;
}
env->gpr[3] = ret;
#if 0
printf("syscall returned 0x%08x (%d)\n", ret, ret);
#endif
break;
case EXCP_RESET:
/* Should not happen ! */
fprintf(stderr, "RESET asked... Stop emulation\n");
if (loglevel)
fprintf(logfile, "RESET asked... Stop emulation\n");
abort();
case EXCP_DSI: /* Impossible memory access */
fprintf(stderr, "Invalid memory access\n");
info.si_signo = SIGSEGV;
case EXCP_MACHINE_CHECK:
fprintf(stderr, "Machine check exeption... Stop emulation\n");
if (loglevel)
fprintf(logfile, "RESET asked... Stop emulation\n");
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLOPN;
info.si_code = TARGET_BUS_OBJERR;
info._sifields._sigfault._addr = env->nip - 4;
queue_signal(info.si_signo, &info);
case EXCP_DSI:
fprintf(stderr, "Invalid data memory access: 0x%08x\n", env->spr[DAR]);
if (loglevel) {
fprintf(logfile, "Invalid data memory access: 0x%08x\n",
env->spr[DAR]);
}
switch (env->error_code & 0xF) {
case EXCP_DSI_TRANSLATE:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
break;
case EXCP_DSI_NOTSUP:
case EXCP_DSI_EXTERNAL:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLADR;
break;
case EXCP_DSI_PROT:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_ACCERR;
break;
case EXCP_DSI_DABR:
info.si_signo = TARGET_SIGTRAP;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
break;
default:
/* Let's send a regular segfault... */
fprintf(stderr, "Invalid segfault errno (%02x)\n",
env->error_code);
if (loglevel) {
fprintf(logfile, "Invalid segfault errno (%02x)\n",
env->error_code);
}
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
break;
}
info._sifields._sigfault._addr = env->nip;
queue_signal(info.si_signo, &info);
break;
case EXCP_ISI: /* Impossible instruction fetch */
case EXCP_ISI:
fprintf(stderr, "Invalid instruction fetch\n");
info.si_signo = SIGBUS;
if (loglevel)
fprintf(logfile, "Invalid instruction fetch\n");
switch (env->error_code) {
case EXCP_ISI_TRANSLATE:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLOPN;
info._sifields._sigfault._addr = env->nip;
info.si_code = TARGET_SEGV_MAPERR;
break;
case EXCP_ISI_GUARD:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLADR;
break;
case EXCP_ISI_NOEXEC:
case EXCP_ISI_PROT:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_ACCERR;
break;
default:
/* Let's send a regular segfault... */
fprintf(stderr, "Invalid segfault errno (%02x)\n",
env->error_code);
if (loglevel) {
fprintf(logfile, "Invalid segfault errno (%02x)\n",
env->error_code);
}
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
break;
}
info._sifields._sigfault._addr = env->nip - 4;
queue_signal(info.si_signo, &info);
break;
case EXCP_EXTERNAL: /* External interruption */
fprintf(stderr, "External access exeption\n");
cpu_ppc_dump_state(env, stderr, 0);
abort();
case EXCP_ALIGN: /* Alignment exception */
fprintf(stderr, "Alignment exception\n");
cpu_ppc_dump_state(env, stderr, 0);
abort();
case EXCP_PROGRAM: /* Program exception */
fprintf(stderr, "Program exception\n");
cpu_ppc_dump_state(env, stderr, 0);
case EXCP_EXTERNAL:
/* Should not happen ! */
fprintf(stderr, "External interruption... Stop emulation\n");
if (loglevel)
fprintf(logfile, "External interruption... Stop emulation\n");
abort();
break;
/* Trap */
case EXCP_TRAP: /* Trap */
case EXCP_TRACE: /* Trace exception (optional) */
info.si_signo = SIGTRAP;
case EXCP_ALIGN:
fprintf(stderr, "Invalid unaligned memory access\n");
if (loglevel)
fprintf(logfile, "Invalid unaligned memory access\n");
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLOPN;
info._sifields._sigfault._addr = env->nip;
info.si_code = TARGET_BUS_ADRALN;
info._sifields._sigfault._addr = env->nip - 4;
queue_signal(info.si_signo, &info);
break;
/* Invalid instruction */
case EXCP_PROGRAM:
switch (env->error_code & ~0xF) {
case EXCP_FP:
fprintf(stderr, "Program exception\n");
if (loglevel)
fprintf(logfile, "Program exception\n");
/* Set FX */
env->fpscr[7] |= 0x8;
/* Finally, update FEX */
if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
env->fpscr[7] |= 0x4;
info.si_signo = TARGET_SIGFPE;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case EXCP_FP_OX:
info.si_code = TARGET_FPE_FLTOVF;
break;
case EXCP_FP_UX:
info.si_code = TARGET_FPE_FLTUND;
break;
case EXCP_FP_ZX:
case EXCP_FP_VXZDZ:
info.si_code = TARGET_FPE_FLTDIV;
break;
case EXCP_FP_XX:
info.si_code = TARGET_FPE_FLTRES;
break;
case EXCP_FP_VXSOFT:
info.si_code = TARGET_FPE_FLTINV;
break;
case EXCP_FP_VXNAN:
case EXCP_FP_VXISI:
case EXCP_FP_VXIDI:
case EXCP_FP_VXIMZ:
case EXCP_FP_VXVC:
case EXCP_FP_VXSQRT:
case EXCP_FP_VXCVI:
info.si_code = TARGET_FPE_FLTSUB;
break;
default:
fprintf(stderr, "Unknown floating point exception "
"(%02x)\n", env->error_code);
if (loglevel) {
fprintf(logfile, "Unknown floating point exception "
"(%02x)\n", env->error_code & 0xF);
}
}
break;
case EXCP_INVAL:
info.si_signo = SIGILL;
info.si_errno = 0;
fprintf(stderr, "Invalid instruction\n");
if (loglevel)
fprintf(logfile, "Invalid instruction\n");
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case EXCP_INVAL_INVAL:
info.si_code = TARGET_ILL_ILLOPC;
break;
case EXCP_INVAL_LSWX:
info.si_code = TARGET_ILL_ILLOPN;
info._sifields._sigfault._addr = env->nip;
break;
case EXCP_INVAL_SPR:
info.si_code = TARGET_ILL_PRVREG;
break;
case EXCP_INVAL_FP:
info.si_code = TARGET_ILL_COPROC;
break;
default:
fprintf(stderr, "Unknown invalid operation (%02x)\n",
env->error_code & 0xF);
if (loglevel) {
fprintf(logfile, "Unknown invalid operation (%02x)\n",
env->error_code & 0xF);
}
info.si_code = TARGET_ILL_ILLADR;
break;
}
break;
case EXCP_PRIV:
fprintf(stderr, "Privilege violation\n");
if (loglevel)
fprintf(logfile, "Privilege violation\n");
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case EXCP_PRIV_OPC:
info.si_code = TARGET_ILL_PRVOPC;
break;
case EXCP_PRIV_REG:
info.si_code = TARGET_ILL_PRVREG;
break;
default:
fprintf(stderr, "Unknown privilege violation (%02x)\n",
env->error_code & 0xF);
info.si_code = TARGET_ILL_PRVOPC;
break;
}
break;
case EXCP_TRAP:
fprintf(stderr, "Tried to call a TRAP\n");
if (loglevel)
fprintf(logfile, "Tried to call a TRAP\n");
abort();
default:
/* Should not happen ! */
fprintf(stderr, "Unknown program exception (%02x)\n",
env->error_code);
if (loglevel) {
fprintf(logfile, "Unknwon program exception (%02x)\n",
env->error_code);
}
abort();
}
info._sifields._sigfault._addr = env->nip - 4;
queue_signal(info.si_signo, &info);
break;
/* Privileged instruction */
case EXCP_PRIV: /* Privileged instruction */
info.si_signo = SIGILL;
case EXCP_NO_FP:
fprintf(stderr, "No floating point allowed\n");
if (loglevel)
fprintf(logfile, "No floating point allowed\n");
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLOPN;
info._sifields._sigfault._addr = env->nip;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip - 4;
queue_signal(info.si_signo, &info);
break;
case EXCP_NO_FP: /* No floating point */
case EXCP_DECR: /* Decrementer exception */
case EXCP_DECR:
/* Should not happen ! */
fprintf(stderr, "Decrementer exception\n");
if (loglevel)
fprintf(logfile, "Decrementer exception\n");
abort();
case EXCP_RESA: /* Implementation specific */
/* Should not happen ! */
fprintf(stderr, "RESA exception should never happen !\n");
if (loglevel)
fprintf(logfile, "RESA exception should never happen !\n");
abort();
case EXCP_RESB: /* Implementation specific */
case EXCP_FP_ASSIST: /* Floating-point assist (optional) */
fprintf(stderr, "Misc expt...\n");
cpu_ppc_dump_state(env, stderr, 0);
/* Should not happen ! */
fprintf(stderr, "RESB exception should never happen !\n");
if (loglevel)
fprintf(logfile, "RESB exception should never happen !\n");
abort();
case EXCP_SYSCALL:
{
uint32_t ret;
/* system call */
/* WARNING:
* PPC ABI uses overflow flag in cr0 to signal an error
* in syscalls.
*/
env->crf[0] &= ~0x1;
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
env->gpr[5], env->gpr[6], env->gpr[7],
env->gpr[8]);
if (ret > (uint32_t)(-515)) {
env->crf[0] |= 0x1;
ret = -ret;
}
env->gpr[3] = ret;
case EXCP_TRACE:
/* Do nothing: we use this to trace execution */
break;
case EXCP_FP_ASSIST:
/* Should not happen ! */
fprintf(stderr, "Floating point assist exception\n");
if (loglevel)
fprintf(logfile, "Floating point assist exception\n");
abort();
case EXCP_MTMSR:
/* We reloaded the msr, just go on */
if (msr_pr) {
fprintf(stderr, "Tried to go into supervisor mode !\n");
if (loglevel)
fprintf(logfile, "Tried to go into supervisor mode !\n");
abort();
}
break;
case EXCP_BRANCH:
/* We stopped because of a jump... */
break;
case EXCP_RFI:
/* Should not occur: we always are in user mode */
fprintf(stderr, "Return from interrupt ?\n");
if (loglevel)
fprintf(logfile, "Return from interrupt ?\n");
abort();
case EXCP_INTERRUPT:
/* Don't know why this should ever happen... */
break;
default:
// error:
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
trapnr);
cpu_ppc_dump_state(env, stderr, 0);
if (loglevel) {
fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
"0x%02x - aborting\n", trapnr, env->error_code);
}
abort();
}
if (trapnr < EXCP_PPC_MAX)
env->exceptions &= ~(1 << trapnr);
process_pending_signals(env);
if (env->exceptions != 0) {
check_exception_state(env);
}
}
}
#endif
......@@ -750,8 +977,10 @@ int main(int argc, char **argv)
#elif defined(TARGET_PPC)
{
int i;
for (i = 0; i < 32; i++)
env->msr[i] = (regs->msr >> i) & 1;
for (i = 0; i < 32; i++) {
if (i != 12 && i != 6)
env->msr[i] = (regs->msr >> i) & 1;
}
env->nip = regs->nip;
for(i = 0; i < 32; i++) {
env->gpr[i] = regs->gpr[i];
......
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或