diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/exec/cpu-defs.h | 1 | ||||
| -rw-r--r-- | include/exec/exec-all.h | 21 | ||||
| -rw-r--r-- | include/exec/gen-icount.h | 4 | ||||
| -rw-r--r-- | include/exec/softmmu_template.h | 4 | ||||
| -rw-r--r-- | include/qom/cpu.h | 2 |
5 files changed, 19 insertions, 13 deletions
diff --git a/include/exec/cpu-defs.h b/include/exec/cpu-defs.h index bdcfefb3fb..068b6c168f 100644 --- a/include/exec/cpu-defs.h +++ b/include/exec/cpu-defs.h @@ -157,7 +157,6 @@ typedef struct CPUWatchpoint { uint32_t u32; \ icount_decr_u16 u16; \ } icount_decr; \ - uint32_t can_do_io; /* nonzero if memory mapped IO is safe. */ \ \ /* from this point: preserved by CPU reset */ \ /* ice debug support */ \ diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index a387922df4..2179329916 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -380,20 +380,25 @@ extern int singlestep; /* cpu-exec.c */ extern volatile sig_atomic_t exit_request; -/* Deterministic execution requires that IO only be performed on the last - instruction of a TB so that interrupts take effect immediately. */ -static inline int can_do_io(CPUArchState *env) +/** + * cpu_can_do_io: + * @cpu: The CPU for which to check IO. + * + * Deterministic execution requires that IO only be performed on the last + * instruction of a TB so that interrupts take effect immediately. + * + * Returns: %true if memory-mapped IO is safe, %false otherwise. + */ +static inline bool cpu_can_do_io(CPUState *cpu) { - CPUState *cpu = ENV_GET_CPU(env); - if (!use_icount) { - return 1; + return true; } /* If not executing code then assume we are ok. */ if (cpu->current_tb == NULL) { - return 1; + return true; } - return env->can_do_io != 0; + return cpu->can_do_io != 0; } #endif diff --git a/include/exec/gen-icount.h b/include/exec/gen-icount.h index 39a6b61e4f..f0dace3034 100644 --- a/include/exec/gen-icount.h +++ b/include/exec/gen-icount.h @@ -51,14 +51,14 @@ static void gen_tb_end(TranslationBlock *tb, int num_insns) static inline void gen_io_start(void) { TCGv_i32 tmp = tcg_const_i32(1); - tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUArchState, can_do_io)); + tcg_gen_st_i32(tmp, cpu_env, -ENV_OFFSET + offsetof(CPUState, can_do_io)); tcg_temp_free_i32(tmp); } static inline void gen_io_end(void) { TCGv_i32 tmp = tcg_const_i32(0); - tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUArchState, can_do_io)); + tcg_gen_st_i32(tmp, cpu_env, -ENV_OFFSET + offsetof(CPUState, can_do_io)); tcg_temp_free_i32(tmp); } diff --git a/include/exec/softmmu_template.h b/include/exec/softmmu_template.h index c7cd93774d..ac825d251c 100644 --- a/include/exec/softmmu_template.h +++ b/include/exec/softmmu_template.h @@ -127,7 +127,7 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(CPUArchState *env, physaddr = (physaddr & TARGET_PAGE_MASK) + addr; cpu->mem_io_pc = retaddr; - if (mr != &io_mem_rom && mr != &io_mem_notdirty && !can_do_io(env)) { + if (mr != &io_mem_rom && mr != &io_mem_notdirty && !cpu_can_do_io(cpu)) { cpu_io_recompile(env, retaddr); } @@ -333,7 +333,7 @@ static inline void glue(io_write, SUFFIX)(CPUArchState *env, MemoryRegion *mr = iotlb_to_region(cpu->as, physaddr); physaddr = (physaddr & TARGET_PAGE_MASK) + addr; - if (mr != &io_mem_rom && mr != &io_mem_notdirty && !can_do_io(env)) { + if (mr != &io_mem_rom && mr != &io_mem_notdirty && !cpu_can_do_io(cpu)) { cpu_io_recompile(env, retaddr); } diff --git a/include/qom/cpu.h b/include/qom/cpu.h index 9d52cf3a34..f80036e99b 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -157,6 +157,7 @@ struct kvm_run; * @tcg_exit_req: Set to force TCG to stop executing linked TBs for this * CPU and return to its top level loop. * @singlestep_enabled: Flags for single-stepping. + * @can_do_io: Nonzero if memory-mapped IO is safe. * @env_ptr: Pointer to subclass-specific CPUArchState field. * @current_tb: Currently executing TB. * @gdb_regs: Additional GDB registers. @@ -220,6 +221,7 @@ struct CPUState { /* TODO Move common fields from CPUArchState here. */ int cpu_index; /* used by alpha TCG */ uint32_t halted; /* used by alpha, cris, ppc TCG */ + uint32_t can_do_io; }; QTAILQ_HEAD(CPUTailQ, CPUState); |