system/qemu
system/qemu
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/qemu synced 2024-11-05 20:35:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

linux-user: move ppc/ppc64 cpu loop to ppc directory

Browse source 
No code change, only move code from main.c to
ppc/cpu_loop.c.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180411185651.21351-7-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2018-04-11 20:56:38 +02:00
parent d0a28415e6
commit 1140051624
2 changed files with 554 additions and 559 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

560
linux-user/main.c
View file

@ -149,547 +149,6 @@ void fork_end(int child)
}
}
#ifdef TARGET_PPC
static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
{
return cpu_get_host_ticks();
}
uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
{
return cpu_ppc_get_tb(env);
}
uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
{
return cpu_ppc_get_tb(env) >> 32;
}
uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
{
return cpu_ppc_get_tb(env);
}
uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
{
return cpu_ppc_get_tb(env) >> 32;
}
uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
{
return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
}
/* XXX: to be fixed */
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
{
return -1;
}
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
{
return -1;
}
static int do_store_exclusive(CPUPPCState *env)
{
target_ulong addr;
target_ulong page_addr;
target_ulong val, val2 __attribute__((unused)) = 0;
int flags;
int segv = 0;
addr = env->reserve_ea;
page_addr = addr & TARGET_PAGE_MASK;
start_exclusive();
mmap_lock();
flags = page_get_flags(page_addr);
if ((flags & PAGE_READ) == 0) {
segv = 1;
} else {
int reg = env->reserve_info & 0x1f;
int size = env->reserve_info >> 5;
int stored = 0;
if (addr == env->reserve_addr) {
switch (size) {
case 1: segv = get_user_u8(val, addr); break;
case 2: segv = get_user_u16(val, addr); break;
case 4: segv = get_user_u32(val, addr); break;
#if defined(TARGET_PPC64)
case 8: segv = get_user_u64(val, addr); break;
case 16: {
segv = get_user_u64(val, addr);
if (!segv) {
segv = get_user_u64(val2, addr + 8);
}
break;
}
#endif
default: abort();
}
if (!segv && val == env->reserve_val) {
val = env->gpr[reg];
switch (size) {
case 1: segv = put_user_u8(val, addr); break;
case 2: segv = put_user_u16(val, addr); break;
case 4: segv = put_user_u32(val, addr); break;
#if defined(TARGET_PPC64)
case 8: segv = put_user_u64(val, addr); break;
case 16: {
if (val2 == env->reserve_val2) {
if (msr_le) {
val2 = val;
val = env->gpr[reg+1];
} else {
val2 = env->gpr[reg+1];
}
segv = put_user_u64(val, addr);
if (!segv) {
segv = put_user_u64(val2, addr + 8);
}
}
break;
}
#endif
default: abort();
}
if (!segv) {
stored = 1;
}
}
}
env->crf[0] = (stored << 1) | xer_so;
env->reserve_addr = (target_ulong)-1;
}
if (!segv) {
env->nip += 4;
}
mmap_unlock();
end_exclusive();
return segv;
}
void cpu_loop(CPUPPCState *env)
{
CPUState *cs = CPU(ppc_env_get_cpu(env));
target_siginfo_t info;
int trapnr;
target_ulong ret;
for(;;) {
cpu_exec_start(cs);
trapnr = cpu_exec(cs);
cpu_exec_end(cs);
process_queued_cpu_work(cs);
switch(trapnr) {
case POWERPC_EXCP_NONE:
/* Just go on */
break;
case POWERPC_EXCP_CRITICAL: /* Critical input */
cpu_abort(cs, "Critical interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_MCHECK: /* Machine check exception */
cpu_abort(cs, "Machine check exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DSI: /* Data storage exception */
/* XXX: check this. Seems bugged */
switch (env->error_code & 0xFF000000) {
case 0x40000000:
case 0x42000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
break;
case 0x04000000:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLADR;
break;
case 0x08000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_ACCERR;
break;
default:
/* Let's send a regular segfault... */
EXCP_DUMP(env, "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->spr[SPR_DAR];
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_ISI: /* Instruction storage exception */
/* XXX: check this */
switch (env->error_code & 0xFF000000) {
case 0x40000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
break;
case 0x10000000:
case 0x08000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_ACCERR;
break;
default:
/* Let's send a regular segfault... */
EXCP_DUMP(env, "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(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_EXTERNAL: /* External input */
cpu_abort(cs, "External interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ALIGN: /* Alignment exception */
/* XXX: check this */
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
info.si_code = TARGET_BUS_ADRALN;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_PROGRAM: /* Program exception */
case POWERPC_EXCP_HV_EMU: /* HV emulation */
/* XXX: check this */
switch (env->error_code & ~0xF) {
case POWERPC_EXCP_FP:
info.si_signo = TARGET_SIGFPE;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case POWERPC_EXCP_FP_OX:
info.si_code = TARGET_FPE_FLTOVF;
break;
case POWERPC_EXCP_FP_UX:
info.si_code = TARGET_FPE_FLTUND;
break;
case POWERPC_EXCP_FP_ZX:
case POWERPC_EXCP_FP_VXZDZ:
info.si_code = TARGET_FPE_FLTDIV;
break;
case POWERPC_EXCP_FP_XX:
info.si_code = TARGET_FPE_FLTRES;
break;
case POWERPC_EXCP_FP_VXSOFT:
info.si_code = TARGET_FPE_FLTINV;
break;
case POWERPC_EXCP_FP_VXSNAN:
case POWERPC_EXCP_FP_VXISI:
case POWERPC_EXCP_FP_VXIDI:
case POWERPC_EXCP_FP_VXIMZ:
case POWERPC_EXCP_FP_VXVC:
case POWERPC_EXCP_FP_VXSQRT:
case POWERPC_EXCP_FP_VXCVI:
info.si_code = TARGET_FPE_FLTSUB;
break;
default:
EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
env->error_code);
break;
}
break;
case POWERPC_EXCP_INVAL:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case POWERPC_EXCP_INVAL_INVAL:
info.si_code = TARGET_ILL_ILLOPC;
break;
case POWERPC_EXCP_INVAL_LSWX:
info.si_code = TARGET_ILL_ILLOPN;
break;
case POWERPC_EXCP_INVAL_SPR:
info.si_code = TARGET_ILL_PRVREG;
break;
case POWERPC_EXCP_INVAL_FP:
info.si_code = TARGET_ILL_COPROC;
break;
default:
EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
env->error_code & 0xF);
info.si_code = TARGET_ILL_ILLADR;
break;
}
break;
case POWERPC_EXCP_PRIV:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case POWERPC_EXCP_PRIV_OPC:
info.si_code = TARGET_ILL_PRVOPC;
break;
case POWERPC_EXCP_PRIV_REG:
info.si_code = TARGET_ILL_PRVREG;
break;
default:
EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
env->error_code & 0xF);
info.si_code = TARGET_ILL_PRVOPC;
break;
}
break;
case POWERPC_EXCP_TRAP:
cpu_abort(cs, "Tried to call a TRAP\n");
break;
default:
/* Should not happen ! */
cpu_abort(cs, "Unknown program exception (%02x)\n",
env->error_code);
break;
}
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_SYSCALL: /* System call exception */
cpu_abort(cs, "Syscall exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_DECR: /* Decrementer exception */
cpu_abort(cs, "Decrementer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
cpu_abort(cs, "Fix interval timer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
cpu_abort(cs, "Watchdog timer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DTLB: /* Data TLB error */
cpu_abort(cs, "Data TLB exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ITLB: /* Instruction TLB error */
cpu_abort(cs, "Instruction TLB exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
cpu_abort(cs, "Embedded floating-point data IRQ not handled\n");
break;
case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
cpu_abort(cs, "Embedded floating-point round IRQ not handled\n");
break;
case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
cpu_abort(cs, "Performance monitor exception not handled\n");
break;
case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
cpu_abort(cs, "Doorbell interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
cpu_abort(cs, "Doorbell critical interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_RESET: /* System reset exception */
cpu_abort(cs, "Reset interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DSEG: /* Data segment exception */
cpu_abort(cs, "Data segment exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ISEG: /* Instruction segment exception */
cpu_abort(cs, "Instruction segment exception "
"while in user mode. Aborting\n");
break;
/* PowerPC 64 with hypervisor mode support */
case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
cpu_abort(cs, "Hypervisor decrementer interrupt "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_TRACE: /* Trace exception */
/* Nothing to do:
* we use this exception to emulate step-by-step execution mode.
*/
break;
/* PowerPC 64 with hypervisor mode support */
case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
cpu_abort(cs, "Hypervisor data storage exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
cpu_abort(cs, "Hypervisor instruction storage exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
cpu_abort(cs, "Hypervisor data segment exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
cpu_abort(cs, "Hypervisor instruction segment exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_VPU: /* Vector unavailable exception */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
cpu_abort(cs, "Programmable interval timer interrupt "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_IO: /* IO error exception */
cpu_abort(cs, "IO error exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_RUNM: /* Run mode exception */
cpu_abort(cs, "Run mode exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_EMUL: /* Emulation trap exception */
cpu_abort(cs, "Emulation trap exception not handled\n");
break;
case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
cpu_abort(cs, "Instruction fetch TLB exception "
"while in user-mode. Aborting");
break;
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
cpu_abort(cs, "Data load TLB exception while in user-mode. "
"Aborting");
break;
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
cpu_abort(cs, "Data store TLB exception while in user-mode. "
"Aborting");
break;
case POWERPC_EXCP_FPA: /* Floating-point assist exception */
cpu_abort(cs, "Floating-point assist exception not handled\n");
break;
case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
cpu_abort(cs, "Instruction address breakpoint exception "
"not handled\n");
break;
case POWERPC_EXCP_SMI: /* System management interrupt */
cpu_abort(cs, "System management interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_THERM: /* Thermal interrupt */
cpu_abort(cs, "Thermal interrupt interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
cpu_abort(cs, "Performance monitor exception not handled\n");
break;
case POWERPC_EXCP_VPUA: /* Vector assist exception */
cpu_abort(cs, "Vector assist exception not handled\n");
break;
case POWERPC_EXCP_SOFTP: /* Soft patch exception */
cpu_abort(cs, "Soft patch exception not handled\n");
break;
case POWERPC_EXCP_MAINT: /* Maintenance exception */
cpu_abort(cs, "Maintenance exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_STOP: /* stop translation */
/* We did invalidate the instruction cache. Go on */
break;
case POWERPC_EXCP_BRANCH: /* branch instruction: */
/* We just stopped because of a branch. Go on */
break;
case POWERPC_EXCP_SYSCALL_USER:
/* system call in user-mode emulation */
/* WARNING:
* PPC ABI uses overflow flag in cr0 to signal an error
* in syscalls.
*/
env->crf[0] &= ~0x1;
env->nip += 4;
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], 0, 0);
if (ret == -TARGET_ERESTARTSYS) {
env->nip -= 4;
break;
}
if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
/* Returning from a successful sigreturn syscall.
Avoid corrupting register state. */
break;
}
if (ret > (target_ulong)(-515)) {
env->crf[0] |= 0x1;
ret = -ret;
}
env->gpr[3] = ret;
break;
case POWERPC_EXCP_STCX:
if (do_store_exclusive(env)) {
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig) {
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
break;
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
break;
case EXCP_ATOMIC:
cpu_exec_step_atomic(cs);
break;
default:
cpu_abort(cs, "Unknown exception 0x%x. Aborting\n", trapnr);
break;
}
process_pending_signals(env);
}
}
#endif
#ifdef TARGET_MIPS
# ifdef TARGET_ABI_MIPSO32
@ -3727,24 +3186,7 @@ int main(int argc, char **argv, char **envp)
target_cpu_copy_regs(env, regs);
#if defined(TARGET_PPC)
{
int i;
#if defined(TARGET_PPC64)
int flag = (env->insns_flags2 & PPC2_BOOKE206) ? MSR_CM : MSR_SF;
#if defined(TARGET_ABI32)
env->msr &= ~((target_ulong)1 << flag);
#else
env->msr |= (target_ulong)1 << flag;
#endif
#endif
env->nip = regs->nip;
for(i = 0; i < 32; i++) {
env->gpr[i] = regs->gpr[i];
}
}
#elif defined(TARGET_M68K)
#if defined(TARGET_M68K)
{
env->pc = regs->pc;
env->dregs[0] = regs->d0;

553
linux-user/ppc/cpu_loop.c
View file

@ -21,6 +21,559 @@
#include "qemu.h"
#include "cpu_loop-common.h"
static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
{
return cpu_get_host_ticks();
}
uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
{
return cpu_ppc_get_tb(env);
}
uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
{
return cpu_ppc_get_tb(env) >> 32;
}
uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
{
return cpu_ppc_get_tb(env);
}
uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
{
return cpu_ppc_get_tb(env) >> 32;
}
uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
{
return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
}
/* XXX: to be fixed */
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
{
return -1;
}
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
{
return -1;
}
static int do_store_exclusive(CPUPPCState *env)
{
target_ulong addr;
target_ulong page_addr;
target_ulong val, val2 __attribute__((unused)) = 0;
int flags;
int segv = 0;
addr = env->reserve_ea;
page_addr = addr & TARGET_PAGE_MASK;
start_exclusive();
mmap_lock();
flags = page_get_flags(page_addr);
if ((flags & PAGE_READ) == 0) {
segv = 1;
} else {
int reg = env->reserve_info & 0x1f;
int size = env->reserve_info >> 5;
int stored = 0;
if (addr == env->reserve_addr) {
switch (size) {
case 1: segv = get_user_u8(val, addr); break;
case 2: segv = get_user_u16(val, addr); break;
case 4: segv = get_user_u32(val, addr); break;
#if defined(TARGET_PPC64)
case 8: segv = get_user_u64(val, addr); break;
case 16: {
segv = get_user_u64(val, addr);
if (!segv) {
segv = get_user_u64(val2, addr + 8);
}
break;
}
#endif
default: abort();
}
if (!segv && val == env->reserve_val) {
val = env->gpr[reg];
switch (size) {
case 1: segv = put_user_u8(val, addr); break;
case 2: segv = put_user_u16(val, addr); break;
case 4: segv = put_user_u32(val, addr); break;
#if defined(TARGET_PPC64)
case 8: segv = put_user_u64(val, addr); break;
case 16: {
if (val2 == env->reserve_val2) {
if (msr_le) {
val2 = val;
val = env->gpr[reg+1];
} else {
val2 = env->gpr[reg+1];
}
segv = put_user_u64(val, addr);
if (!segv) {
segv = put_user_u64(val2, addr + 8);
}
}
break;
}
#endif
default: abort();
}
if (!segv) {
stored = 1;
}
}
}
env->crf[0] = (stored << 1) | xer_so;
env->reserve_addr = (target_ulong)-1;
}
if (!segv) {
env->nip += 4;
}
mmap_unlock();
end_exclusive();
return segv;
}
void cpu_loop(CPUPPCState *env)
{
CPUState *cs = CPU(ppc_env_get_cpu(env));
target_siginfo_t info;
int trapnr;
target_ulong ret;
for(;;) {
cpu_exec_start(cs);
trapnr = cpu_exec(cs);
cpu_exec_end(cs);
process_queued_cpu_work(cs);
switch(trapnr) {
case POWERPC_EXCP_NONE:
/* Just go on */
break;
case POWERPC_EXCP_CRITICAL: /* Critical input */
cpu_abort(cs, "Critical interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_MCHECK: /* Machine check exception */
cpu_abort(cs, "Machine check exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DSI: /* Data storage exception */
/* XXX: check this. Seems bugged */
switch (env->error_code & 0xFF000000) {
case 0x40000000:
case 0x42000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
break;
case 0x04000000:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_ILLADR;
break;
case 0x08000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_ACCERR;
break;
default:
/* Let's send a regular segfault... */
EXCP_DUMP(env, "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->spr[SPR_DAR];
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_ISI: /* Instruction storage exception */
/* XXX: check this */
switch (env->error_code & 0xFF000000) {
case 0x40000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
break;
case 0x10000000:
case 0x08000000:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_ACCERR;
break;
default:
/* Let's send a regular segfault... */
EXCP_DUMP(env, "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(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_EXTERNAL: /* External input */
cpu_abort(cs, "External interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ALIGN: /* Alignment exception */
/* XXX: check this */
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
info.si_code = TARGET_BUS_ADRALN;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_PROGRAM: /* Program exception */
case POWERPC_EXCP_HV_EMU: /* HV emulation */
/* XXX: check this */
switch (env->error_code & ~0xF) {
case POWERPC_EXCP_FP:
info.si_signo = TARGET_SIGFPE;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case POWERPC_EXCP_FP_OX:
info.si_code = TARGET_FPE_FLTOVF;
break;
case POWERPC_EXCP_FP_UX:
info.si_code = TARGET_FPE_FLTUND;
break;
case POWERPC_EXCP_FP_ZX:
case POWERPC_EXCP_FP_VXZDZ:
info.si_code = TARGET_FPE_FLTDIV;
break;
case POWERPC_EXCP_FP_XX:
info.si_code = TARGET_FPE_FLTRES;
break;
case POWERPC_EXCP_FP_VXSOFT:
info.si_code = TARGET_FPE_FLTINV;
break;
case POWERPC_EXCP_FP_VXSNAN:
case POWERPC_EXCP_FP_VXISI:
case POWERPC_EXCP_FP_VXIDI:
case POWERPC_EXCP_FP_VXIMZ:
case POWERPC_EXCP_FP_VXVC:
case POWERPC_EXCP_FP_VXSQRT:
case POWERPC_EXCP_FP_VXCVI:
info.si_code = TARGET_FPE_FLTSUB;
break;
default:
EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
env->error_code);
break;
}
break;
case POWERPC_EXCP_INVAL:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case POWERPC_EXCP_INVAL_INVAL:
info.si_code = TARGET_ILL_ILLOPC;
break;
case POWERPC_EXCP_INVAL_LSWX:
info.si_code = TARGET_ILL_ILLOPN;
break;
case POWERPC_EXCP_INVAL_SPR:
info.si_code = TARGET_ILL_PRVREG;
break;
case POWERPC_EXCP_INVAL_FP:
info.si_code = TARGET_ILL_COPROC;
break;
default:
EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
env->error_code & 0xF);
info.si_code = TARGET_ILL_ILLADR;
break;
}
break;
case POWERPC_EXCP_PRIV:
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
switch (env->error_code & 0xF) {
case POWERPC_EXCP_PRIV_OPC:
info.si_code = TARGET_ILL_PRVOPC;
break;
case POWERPC_EXCP_PRIV_REG:
info.si_code = TARGET_ILL_PRVREG;
break;
default:
EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
env->error_code & 0xF);
info.si_code = TARGET_ILL_PRVOPC;
break;
}
break;
case POWERPC_EXCP_TRAP:
cpu_abort(cs, "Tried to call a TRAP\n");
break;
default:
/* Should not happen ! */
cpu_abort(cs, "Unknown program exception (%02x)\n",
env->error_code);
break;
}
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_SYSCALL: /* System call exception */
cpu_abort(cs, "Syscall exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_DECR: /* Decrementer exception */
cpu_abort(cs, "Decrementer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
cpu_abort(cs, "Fix interval timer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
cpu_abort(cs, "Watchdog timer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DTLB: /* Data TLB error */
cpu_abort(cs, "Data TLB exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ITLB: /* Instruction TLB error */
cpu_abort(cs, "Instruction TLB exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
cpu_abort(cs, "Embedded floating-point data IRQ not handled\n");
break;
case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
cpu_abort(cs, "Embedded floating-point round IRQ not handled\n");
break;
case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
cpu_abort(cs, "Performance monitor exception not handled\n");
break;
case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
cpu_abort(cs, "Doorbell interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
cpu_abort(cs, "Doorbell critical interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_RESET: /* System reset exception */
cpu_abort(cs, "Reset interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DSEG: /* Data segment exception */
cpu_abort(cs, "Data segment exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ISEG: /* Instruction segment exception */
cpu_abort(cs, "Instruction segment exception "
"while in user mode. Aborting\n");
break;
/* PowerPC 64 with hypervisor mode support */
case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
cpu_abort(cs, "Hypervisor decrementer interrupt "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_TRACE: /* Trace exception */
/* Nothing to do:
* we use this exception to emulate step-by-step execution mode.
*/
break;
/* PowerPC 64 with hypervisor mode support */
case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
cpu_abort(cs, "Hypervisor data storage exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
cpu_abort(cs, "Hypervisor instruction storage exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
cpu_abort(cs, "Hypervisor data segment exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
cpu_abort(cs, "Hypervisor instruction segment exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_VPU: /* Vector unavailable exception */
info.si_signo = TARGET_SIGILL;
info.si_errno = 0;
info.si_code = TARGET_ILL_COPROC;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
cpu_abort(cs, "Programmable interval timer interrupt "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_IO: /* IO error exception */
cpu_abort(cs, "IO error exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_RUNM: /* Run mode exception */
cpu_abort(cs, "Run mode exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_EMUL: /* Emulation trap exception */
cpu_abort(cs, "Emulation trap exception not handled\n");
break;
case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
cpu_abort(cs, "Instruction fetch TLB exception "
"while in user-mode. Aborting");
break;
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
cpu_abort(cs, "Data load TLB exception while in user-mode. "
"Aborting");
break;
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
cpu_abort(cs, "Data store TLB exception while in user-mode. "
"Aborting");
break;
case POWERPC_EXCP_FPA: /* Floating-point assist exception */
cpu_abort(cs, "Floating-point assist exception not handled\n");
break;
case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
cpu_abort(cs, "Instruction address breakpoint exception "
"not handled\n");
break;
case POWERPC_EXCP_SMI: /* System management interrupt */
cpu_abort(cs, "System management interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_THERM: /* Thermal interrupt */
cpu_abort(cs, "Thermal interrupt interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
cpu_abort(cs, "Performance monitor exception not handled\n");
break;
case POWERPC_EXCP_VPUA: /* Vector assist exception */
cpu_abort(cs, "Vector assist exception not handled\n");
break;
case POWERPC_EXCP_SOFTP: /* Soft patch exception */
cpu_abort(cs, "Soft patch exception not handled\n");
break;
case POWERPC_EXCP_MAINT: /* Maintenance exception */
cpu_abort(cs, "Maintenance exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_STOP: /* stop translation */
/* We did invalidate the instruction cache. Go on */
break;
case POWERPC_EXCP_BRANCH: /* branch instruction: */
/* We just stopped because of a branch. Go on */
break;
case POWERPC_EXCP_SYSCALL_USER:
/* system call in user-mode emulation */
/* WARNING:
* PPC ABI uses overflow flag in cr0 to signal an error
* in syscalls.
*/
env->crf[0] &= ~0x1;
env->nip += 4;
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], 0, 0);
if (ret == -TARGET_ERESTARTSYS) {
env->nip -= 4;
break;
}
if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
/* Returning from a successful sigreturn syscall.
Avoid corrupting register state. */
break;
}
if (ret > (target_ulong)(-515)) {
env->crf[0] |= 0x1;
ret = -ret;
}
env->gpr[3] = ret;
break;
case POWERPC_EXCP_STCX:
if (do_store_exclusive(env)) {
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->nip;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig) {
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
break;
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
break;
case EXCP_ATOMIC:
cpu_exec_step_atomic(cs);
break;
default:
cpu_abort(cs, "Unknown exception 0x%x. Aborting\n", trapnr);
break;
}
process_pending_signals(env);
}
}
void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
{
int i;
#if defined(TARGET_PPC64)
int flag = (env->insns_flags2 & PPC2_BOOKE206) ? MSR_CM : MSR_SF;
#if defined(TARGET_ABI32)
env->msr &= ~((target_ulong)1 << flag);
#else
env->msr |= (target_ulong)1 << flag;
#endif
#endif
env->nip = regs->nip;
for(i = 0; i < 32; i++) {
env->gpr[i] = regs->gpr[i];
}
}