diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/exec/gen-icount.h | 12 | ||||
| -rw-r--r-- | include/qom/cpu.h | 3 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/exec/gen-icount.h b/include/exec/gen-icount.h index c858a738c0..384153b4c4 100644 --- a/include/exec/gen-icount.h +++ b/include/exec/gen-icount.h @@ -7,10 +7,19 @@ static TCGArg *icount_arg; static int icount_label; +static int exitreq_label; static inline void gen_icount_start(void) { TCGv_i32 count; + TCGv_i32 flag; + + exitreq_label = gen_new_label(); + flag = tcg_temp_local_new_i32(); + tcg_gen_ld_i32(flag, cpu_env, + offsetof(CPUState, tcg_exit_req) - ENV_OFFSET); + tcg_gen_brcondi_i32(TCG_COND_NE, flag, 0, exitreq_label); + tcg_temp_free_i32(flag); if (!use_icount) return; @@ -29,6 +38,9 @@ static inline void gen_icount_start(void) static void gen_icount_end(TranslationBlock *tb, int num_insns) { + gen_set_label(exitreq_label); + tcg_gen_exit_tb((tcg_target_long)tb + TB_EXIT_REQUESTED); + if (use_icount) { *icount_arg = num_insns; gen_set_label(icount_label); diff --git a/include/qom/cpu.h b/include/qom/cpu.h index ee1a7c878a..ab2657c558 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -71,6 +71,8 @@ struct kvm_run; * @created: Indicates whether the CPU thread has been successfully created. * @stop: Indicates a pending stop request. * @stopped: Indicates the CPU has been artificially stopped. + * @tcg_exit_req: Set to force TCG to stop executing linked TBs for this + * CPU and return to its top level loop. * @env_ptr: Pointer to subclass-specific CPUArchState field. * @current_tb: Currently executing TB. * @kvm_fd: vCPU file descriptor for KVM. @@ -100,6 +102,7 @@ struct CPUState { bool stop; bool stopped; volatile sig_atomic_t exit_request; + volatile sig_atomic_t tcg_exit_req; void *env_ptr; /* CPUArchState */ struct TranslationBlock *current_tb; |