Refactor common code around calls to cpu_restore_state().
tb_find_pc() has now no external users, make it static.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
void cpu_gen_init(void);
int cpu_gen_code(CPUArchState *env, struct TranslationBlock *tb,
int *gen_code_size_ptr);
-int cpu_restore_state(struct TranslationBlock *tb,
- CPUArchState *env, uintptr_t searched_pc);
+bool cpu_restore_state(CPUArchState *env, uintptr_t searched_pc);
+
void QEMU_NORETURN cpu_resume_from_signal(CPUArchState *env1, void *puc);
void QEMU_NORETURN cpu_io_recompile(CPUArchState *env, uintptr_t retaddr);
TranslationBlock *tb_gen_code(CPUArchState *env,
}
}
-TranslationBlock *tb_find_pc(uintptr_t pc_ptr);
-
#include "qemu-lock.h"
extern spinlock_t tb_lock;
VAPICHandlers *handlers;
uint8_t opcode[2];
uint32_t imm32;
- TranslationBlock *current_tb;
target_ulong current_pc = 0;
target_ulong current_cs_base = 0;
int current_flags = 0;
}
if (!kvm_enabled()) {
- current_tb = tb_find_pc(env->mem_io_pc);
- cpu_restore_state(current_tb, env, env->mem_io_pc);
+ cpu_restore_state(env, env->mem_io_pc);
cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base,
¤t_flags);
}
cpu_fprintf(f, "\n");
}
-void do_restore_state(CPUAlphaState *env, uintptr_t retaddr)
-{
- if (retaddr) {
- TranslationBlock *tb = tb_find_pc(retaddr);
- if (tb) {
- cpu_restore_state(tb, env, retaddr);
- }
- }
-}
-
/* This should only be called from translate, via gen_excp.
We expect that ENV->PC has already been updated. */
void QEMU_NORETURN helper_excp(CPUAlphaState *env, int excp, int error)
{
env->exception_index = excp;
env->error_code = error;
- do_restore_state(env, retaddr);
+ if (retaddr) {
+ cpu_restore_state(env, retaddr);
+ }
cpu_loop_exit(env);
}
uint64_t pc;
uint32_t insn;
- do_restore_state(env, retaddr);
+ if (retaddr) {
+ cpu_restore_state(env, retaddr);
+ }
pc = env->pc;
insn = cpu_ldl_code(env, pc);
ret = cpu_alpha_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret != 0)) {
- do_restore_state(env, retaddr);
+ if (retaddr) {
+ cpu_restore_state(env, retaddr);
+ }
/* Exception index and error code are already set */
cpu_loop_exit(env);
}
void tlb_fill(CPUARMState *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
ret = cpu_arm_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
+ cpu_restore_state(env, retaddr);
}
raise_exception(env, env->exception_index);
}
void tlb_fill(CPUCRISState *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
D_LOG("%s pc=%x tpc=%x ra=%p\n", __func__,
if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
-
+ if (cpu_restore_state(env, retaddr)) {
/* Evaluate flags after retranslation. */
helper_top_evaluate_flags(env);
}
void cpu_report_tpr_access(CPUX86State *env, TPRAccess access)
{
- TranslationBlock *tb;
-
if (kvm_enabled()) {
env->tpr_access_type = access;
cpu_interrupt(env, CPU_INTERRUPT_TPR);
} else {
- tb = tb_find_pc(env->mem_io_pc);
- cpu_restore_state(tb, env, env->mem_io_pc);
+ cpu_restore_state(env, env->mem_io_pc);
apic_handle_tpr_access_report(env->apic_state, env->eip, access);
}
void tlb_fill(CPUX86State *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
ret = cpu_x86_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (ret) {
if (retaddr) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
+ cpu_restore_state(env, retaddr);
}
raise_exception_err(env, env->exception_index, env->error_code);
}
void tlb_fill(CPULM32State *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
ret = cpu_lm32_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
+ cpu_restore_state(env, retaddr);
}
cpu_loop_exit(env);
}
void tlb_fill(CPUM68KState *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
ret = cpu_m68k_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
+ cpu_restore_state(env, retaddr);
}
cpu_loop_exit(env);
}
void tlb_fill(CPUMBState *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
ret = cpu_mb_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
+ cpu_restore_state(env, retaddr);
}
cpu_loop_exit(env);
}
int error_code,
uintptr_t pc)
{
- TranslationBlock *tb;
#if 1
if (exception < 0x100)
qemu_log("%s: %d %d\n", __func__, exception, error_code);
if (pc) {
/* now we have a real cpu fault */
- tb = tb_find_pc(pc);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, pc);
- }
+ cpu_restore_state(env, pc);
}
cpu_loop_exit(env);
void tlb_fill(CPUOpenRISCState *env, target_ulong addr, int is_write,
int mmu_idx, uintptr_t retaddr)
{
- TranslationBlock *tb;
- unsigned long pc;
int ret;
ret = cpu_openrisc_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (ret) {
if (retaddr) {
/* now we have a real cpu fault. */
- pc = (unsigned long)retaddr;
- tb = tb_find_pc(pc);
- if (tb) {
- /* the PC is inside the translated code. It means that we
- have a virtual CPU fault. */
- cpu_restore_state(tb, env, pc);
- }
+ cpu_restore_state(env, retaddr);
}
/* Raise Exception. */
cpu_loop_exit(env);
void tlb_fill(CPUPPCState *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret != 0)) {
if (likely(retaddr)) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (likely(tb)) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
+ cpu_restore_state(env, retaddr);
}
helper_raise_exception_err(env, env->exception_index, env->error_code);
}
void tlb_fill(CPUS390XState *env, target_ulong addr, int is_write, int mmu_idx,
uintptr_t retaddr)
{
- TranslationBlock *tb;
int ret;
ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret != 0)) {
if (likely(retaddr)) {
/* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (likely(tb)) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
+ cpu_restore_state(env, retaddr);
}
cpu_loop_exit(env);
}
#include "cpu.h"
#include "helper.h"
-static inline void cpu_restore_state_from_retaddr(CPUSH4State *env,
- uintptr_t retaddr)
-{
- TranslationBlock *tb;
-
- if (retaddr) {
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
- }
-}
-
#ifndef CONFIG_USER_ONLY
#include "softmmu_exec.h"
ret = cpu_sh4_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (ret) {
/* now we have a real cpu fault */
- cpu_restore_state_from_retaddr(env, retaddr);
+ if (retaddr) {
+ cpu_restore_state(env, retaddr);
+ }
cpu_loop_exit(env);
}
}
uintptr_t retaddr)
{
env->exception_index = index;
- cpu_restore_state_from_retaddr(env, retaddr);
+ if (retaddr) {
+ cpu_restore_state(env, retaddr);
+ }
cpu_loop_exit(env);
}
void cpu_tick_set_limit(CPUTimer *timer, uint64_t limit);
trap_state* cpu_tsptr(CPUSPARCState* env);
#endif
-void cpu_restore_state2(CPUSPARCState *env, uintptr_t retaddr);
#define TB_FLAG_FPU_ENABLED (1 << 4)
#define TB_FLAG_AM_ENABLED (1 << 5)
x1 = (b & 0xffffffff);
if (x1 == 0) {
- cpu_restore_state2(env, GETPC());
+ cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
x1 = (b & 0xffffffff);
if (x1 == 0) {
- cpu_restore_state2(env, GETPC());
+ cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
{
if (b == 0) {
/* Raise divide by zero trap. */
- cpu_restore_state2(env, GETPC());
+ cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
} else if (b == -1) {
/* Avoid overflow trap with i386 divide insn. */
{
if (b == 0) {
/* Raise divide by zero trap. */
- cpu_restore_state2(env, GETPC());
+ cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_DIV_ZERO);
}
return a / b;
return dst;
tag_overflow:
- cpu_restore_state2(env, GETPC());
+ cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_TOVF);
}
return dst;
tag_overflow:
- cpu_restore_state2(env, GETPC());
+ cpu_restore_state(env, GETPC());
helper_raise_exception(env, TT_TOVF);
}
#endif
#endif
-/* XXX: make it generic ? */
-void cpu_restore_state2(CPUSPARCState *env, uintptr_t retaddr)
-{
- TranslationBlock *tb;
-
- if (retaddr) {
- /* now we have a real cpu fault */
- tb = tb_find_pc(retaddr);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, env, retaddr);
- }
- }
-}
-
#if !defined(CONFIG_USER_ONLY)
static void QEMU_NORETURN do_unaligned_access(CPUSPARCState *env,
target_ulong addr, int is_write,
printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx
"\n", addr, env->pc);
#endif
- cpu_restore_state2(env, retaddr);
+ if (retaddr) {
+ cpu_restore_state(env, retaddr);
+ }
helper_raise_exception(env, TT_UNALIGNED);
}
ret = cpu_sparc_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (ret) {
- cpu_restore_state2(env, retaddr);
+ if (retaddr) {
+ cpu_restore_state(env, retaddr);
+ }
cpu_loop_exit(env);
}
}
void tlb_fill(CPUUniCore32State *env, target_ulong addr, int is_write,
int mmu_idx, uintptr_t retaddr)
{
- TranslationBlock *tb;
- unsigned long pc;
int ret;
ret = uc32_cpu_handle_mmu_fault(env, addr, is_write, mmu_idx);
if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
- pc = (unsigned long)retaddr;
- tb = tb_find_pc(pc);
- if (tb) {/* the PC is inside the translated code.
- It means that we have a virtual CPU fault */
- cpu_restore_state(tb, env, pc);
- }
+ cpu_restore_state(env, retaddr);
}
cpu_loop_exit(env);
}
#define SHIFT 3
#include "softmmu_template.h"
-static void do_restore_state(CPUXtensaState *env, uintptr_t pc)
-{
- TranslationBlock *tb;
-
- tb = tb_find_pc(pc);
- if (tb) {
- cpu_restore_state(tb, env, pc);
- }
-}
-
static void do_unaligned_access(CPUXtensaState *env,
target_ulong addr, int is_write, int is_user, uintptr_t retaddr)
{
if (xtensa_option_enabled(env->config, XTENSA_OPTION_UNALIGNED_EXCEPTION) &&
!xtensa_option_enabled(env->config, XTENSA_OPTION_HW_ALIGNMENT)) {
- do_restore_state(env, retaddr);
+ cpu_restore_state(env, retaddr);
HELPER(exception_cause_vaddr)(env,
env->pc, LOAD_STORE_ALIGNMENT_CAUSE, addr);
}
paddr & TARGET_PAGE_MASK,
access, mmu_idx, page_size);
} else {
- do_restore_state(env, retaddr);
+ cpu_restore_state(env, retaddr);
HELPER(exception_cause_vaddr)(env, env->pc, ret, vaddr);
}
}
static void tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc,
tb_page_addr_t phys_page2);
+static TranslationBlock *tb_find_pc(uintptr_t tc_ptr);
void cpu_gen_init(void)
{
/* The cpu state corresponding to 'searched_pc' is restored.
*/
-int cpu_restore_state(TranslationBlock *tb,
- CPUArchState *env, uintptr_t searched_pc)
+static int cpu_restore_state_from_tb(TranslationBlock *tb, CPUArchState *env,
+ uintptr_t searched_pc)
{
TCGContext *s = &tcg_ctx;
int j;
return 0;
}
+bool cpu_restore_state(CPUArchState *env, uintptr_t retaddr)
+{
+ TranslationBlock *tb;
+
+ tb = tb_find_pc(retaddr);
+ if (tb) {
+ cpu_restore_state_from_tb(tb, env, retaddr);
+ return true;
+ }
+ return false;
+}
+
#ifdef _WIN32
static inline void map_exec(void *addr, long size)
{
restore the CPU state */
current_tb_modified = 1;
- cpu_restore_state(current_tb, env, env->mem_io_pc);
+ cpu_restore_state_from_tb(current_tb, env, env->mem_io_pc);
cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base,
¤t_flags);
}
restore the CPU state */
current_tb_modified = 1;
- cpu_restore_state(current_tb, env, pc);
+ cpu_restore_state_from_tb(current_tb, env, pc);
cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base,
¤t_flags);
}
/* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
tb[1].tc_ptr. Return NULL if not found */
-TranslationBlock *tb_find_pc(uintptr_t tc_ptr)
+static TranslationBlock *tb_find_pc(uintptr_t tc_ptr)
{
int m_min, m_max, m;
uintptr_t v;
cpu_abort(env, "check_watchpoint: could not find TB for pc=%p",
(void *)env->mem_io_pc);
}
- cpu_restore_state(tb, env, env->mem_io_pc);
+ cpu_restore_state_from_tb(tb, env, env->mem_io_pc);
tb_phys_invalidate(tb, -1);
}
(void *)retaddr);
}
n = env->icount_decr.u16.low + tb->icount;
- cpu_restore_state(tb, env, retaddr);
+ cpu_restore_state_from_tb(tb, env, retaddr);
/* Calculate how many instructions had been executed before the fault
occurred. */
n = n - env->icount_decr.u16.low;
int is_write, sigset_t *old_set,
void *puc)
{
- TranslationBlock *tb;
int ret;
#if defined(DEBUG_SIGNAL)
return 1; /* the MMU fault was handled without causing real CPU fault */
}
/* now we have a real cpu fault */
- tb = tb_find_pc(pc);
- if (tb) {
- /* the PC is inside the translated code. It means that we have
- a virtual CPU fault */
- cpu_restore_state(tb, cpu_single_env, pc);
- }
+ cpu_restore_state(cpu_single_env, pc);
/* we restore the process signal mask as the sigreturn should
do it (XXX: use sigsetjmp) */