Don't sync pc if user requests a restart

qemu/accel/tcg/cpu-exec.c

@@ -86,6 +86,8 @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb)
                 case UC_ERR_FETCH_UNALIGNED:
                     break;
                 default:
+                    // If we receive a quit request, users has sync-ed PC themselves.
+                    if (!cpu->uc->quit_request) {
                         if (cc->synchronize_from_tb) {
                             cc->synchronize_from_tb(cpu, last_tb);
                         } else {
@@ -94,6 +96,7 @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, TranslationBlock *itb)
                         }
                     }
             }
+        }
 
         cpu->tcg_exit_req = 0;
     }