Mac运行Ionic时，x86仿真为何需要硬件加速支持？

Running command: /Users/swizard/Documents/dev/ionic/q-metro/hooks/after_prepare/010_add_platform_class.js /Users/swizard/Documents/dev/ionic/q-metro add to body class: platform-android ANDROID_HOME=/Users/swizard/Documents/dev/android-sdk-macosx JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home No emulator specified, defaulting to android1 Waiting for emulator... emulator: ERROR: x86 emulation currently requires hardware acceleration! Please ensure Intel HAXM is properly installed and usable. CPU acceleration status: HAX is not installed on this machine (/dev/HAX is missing). 　　如果出现如下问题说明Intel x86 Emulator Accelerator (HAXM Installer) 没有被安装。 运行android skd 打开sdk manager, 安装Intel x86 Emulator Accelerator (HAXM Installer) 直至 installed 状态。 这时回到命令行 到android-sdk-macosx/extras/intel/Hardware_Accelerated_Execution_Manager目录下 执行 ./silent_install.sh 　　再次执行 ionic emulate android 　　就不会出现问题了