diff options
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 57 |
1 files changed, 28 insertions, 29 deletions
@@ -69,10 +69,10 @@ static MemoryRegion io_mem_unassigned; #endif -CPUArchState *first_cpu; +CPUState *first_cpu; /* current CPU in the current thread. It is only valid inside cpu_exec() */ -DEFINE_TLS(CPUArchState *,cpu_single_env); +DEFINE_TLS(CPUState *, current_cpu); /* 0 = Do not count executed instructions. 1 = Precise instruction counting. 2 = Adaptive rate instruction counting. */ @@ -351,27 +351,26 @@ const VMStateDescription vmstate_cpu_common = { CPUState *qemu_get_cpu(int index) { - CPUArchState *env = first_cpu; - CPUState *cpu = NULL; + CPUState *cpu = first_cpu; - while (env) { - cpu = ENV_GET_CPU(env); + while (cpu) { if (cpu->cpu_index == index) { break; } - env = env->next_cpu; + cpu = cpu->next_cpu; } - return env ? cpu : NULL; + return cpu; } void qemu_for_each_cpu(void (*func)(CPUState *cpu, void *data), void *data) { - CPUArchState *env = first_cpu; + CPUState *cpu; - while (env) { - func(ENV_GET_CPU(env), data); - env = env->next_cpu; + cpu = first_cpu; + while (cpu) { + func(cpu, data); + cpu = cpu->next_cpu; } } @@ -379,17 +378,17 @@ void cpu_exec_init(CPUArchState *env) { CPUState *cpu = ENV_GET_CPU(env); CPUClass *cc = CPU_GET_CLASS(cpu); - CPUArchState **penv; + CPUState **pcpu; int cpu_index; #if defined(CONFIG_USER_ONLY) cpu_list_lock(); #endif - env->next_cpu = NULL; - penv = &first_cpu; + cpu->next_cpu = NULL; + pcpu = &first_cpu; cpu_index = 0; - while (*penv != NULL) { - penv = &(*penv)->next_cpu; + while (*pcpu != NULL) { + pcpu = &(*pcpu)->next_cpu; cpu_index++; } cpu->cpu_index = cpu_index; @@ -399,7 +398,7 @@ void cpu_exec_init(CPUArchState *env) #ifndef CONFIG_USER_ONLY cpu->thread_id = qemu_get_thread_id(); #endif - *penv = env; + *pcpu = cpu; #if defined(CONFIG_USER_ONLY) cpu_list_unlock(); #endif @@ -618,7 +617,7 @@ void cpu_abort(CPUArchState *env, const char *fmt, ...) qemu_log("qemu: fatal: "); qemu_log_vprintf(fmt, ap2); qemu_log("\n"); - log_cpu_state(env, CPU_DUMP_FPU | CPU_DUMP_CCOP); + log_cpu_state(cpu, CPU_DUMP_FPU | CPU_DUMP_CCOP); qemu_log_flush(); qemu_log_close(); } @@ -638,7 +637,6 @@ void cpu_abort(CPUArchState *env, const char *fmt, ...) CPUArchState *cpu_copy(CPUArchState *env) { CPUArchState *new_env = cpu_init(env->cpu_model_str); - CPUArchState *next_cpu = new_env->next_cpu; #if defined(TARGET_HAS_ICE) CPUBreakpoint *bp; CPUWatchpoint *wp; @@ -646,9 +644,6 @@ CPUArchState *cpu_copy(CPUArchState *env) memcpy(new_env, env, sizeof(CPUArchState)); - /* Preserve chaining. */ - new_env->next_cpu = next_cpu; - /* Clone all break/watchpoints. Note: Once we support ptrace with hw-debug register access, make sure BP_CPU break/watchpoints are handled correctly on clone. */ @@ -1467,8 +1462,10 @@ static void notdirty_mem_write(void *opaque, hwaddr ram_addr, cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); /* we remove the notdirty callback only if the code has been flushed */ - if (dirty_flags == 0xff) - tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); + if (dirty_flags == 0xff) { + CPUArchState *env = current_cpu->env_ptr; + tlb_set_dirty(env, env->mem_io_vaddr); + } } static bool notdirty_mem_accepts(void *opaque, hwaddr addr, @@ -1486,7 +1483,7 @@ static const MemoryRegionOps notdirty_mem_ops = { /* Generate a debug exception if a watchpoint has been hit. */ static void check_watchpoint(int offset, int len_mask, int flags) { - CPUArchState *env = cpu_single_env; + CPUArchState *env = current_cpu->env_ptr; target_ulong pc, cs_base; target_ulong vaddr; CPUWatchpoint *wp; @@ -1750,12 +1747,14 @@ static void core_commit(MemoryListener *listener) static void tcg_commit(MemoryListener *listener) { - CPUArchState *env; + CPUState *cpu; /* since each CPU stores ram addresses in its TLB cache, we must reset the modified entries */ /* XXX: slow ! */ - for(env = first_cpu; env != NULL; env = env->next_cpu) { + for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) { + CPUArchState *env = cpu->env_ptr; + tlb_flush(env, 1); } } @@ -1925,7 +1924,7 @@ bool address_space_rw(AddressSpace *as, hwaddr addr, uint8_t *buf, if (is_write) { if (!memory_access_is_direct(mr, is_write)) { l = memory_access_size(mr, l, addr1); - /* XXX: could force cpu_single_env to NULL to avoid + /* XXX: could force current_cpu to NULL to avoid potential bugs */ if (l == 4) { /* 32 bit write access */ |