报错信息：
Starting emulator for AVD \'old_android\'
emulator: WARNING: Classic qemu does not support SMP. The hw.cpu.ncore option from your config file is ignored.
emulator: ERROR: x86 emulation currently requires hardware acceleration!
Please ensure Intel HAXM is properly installed and usable.
CPU acceleration status: HAXM is not installed on this machine
原因是：
-
安装HAXM软件，官方下载地址： http://software.intel.com/zh-cn/articles/intel-hardware-accelerated-execution-manager/
验证安装状态：命令行里输入sc query intelhaxm 看到STATE的属性是RUNNING即可
- BIOS需要配置CPU VT-x虚拟化技术。
联想笔记本开启VT-x虚拟化方法：http://www.cnblogs.com/samren/p/6117847.html
Dell笔记本开启VT虚拟化方法（注意需要配置2处）：
Vertualization ----> Enable Intel
VT for Direct I/O
（本文完）