我们使用 KVM 创建虚拟机后，会在 /etc/libvirt/qemu/ 路径下生成该虚拟机的 xml 配置文件，很多时候，我们会以此 xml 配置为模板，进行修改后来创建新的虚拟机，这样，就需要我们了解该配置文件中各个字段的意思，下面，就对该文件做一说明：

     
     
     
     
        
      
       node1
                                                                            
        
      
       8908d03b-0329-4105-851f-c93fd091e9e9
                                             
        
      
       2097152                                                     
         
       
        2097152                                       
          
        
         2                                                       
           
         
                                                                                              
              
          
           hvm    
             
          
           
         
                                                                                        
              
              
            
           
         
                                                 
              
          
           Westmere    
           
                                                                                
                
                
                
                
            
             destroy
                                                                  
              
            
             restart
                                                                      
              
            
             destroy
                                                                        
              
            
                                                                                                 
                 
                 
               
              
            
                                                                                            
                 
             
              /usr/libexec/qemu-kvm
                                                         
                 
             
                                                                    
                    
                                                                
                    
                                                
                    
                                                                  
                    
                       
                      
              
                                                 
                     
                       
               
                      
                      
                        
                
                       
                       
                         
                 
                        
                        
                          
                                                      
                      
                  
                         
                           
                   
                                                                                 
                          
                                                                       
                          
                                                                              
                          
                          
                              
                            
                    
                                                                                         
                           
                     
                              
                                    
                      
                             
                               
                       
                                                                                          
                              
                              
                                
                        
                                                                                       
                               
                               
                                               
                                 
                         
                                                                                  
                                
                                  
                                                                                  
                              
                                                                               
                              
                          
                                                                            
                                 
                                 
                                   
                           
                                                                                               
                                  
                                    
                                
                            
                                                                                
                                   
                                     
                             
                                    
                                      
                              
                                                                                           
                                     
                                     
                              
                             
                            
                           
                          
                         
                        
                       
                      
                     
                    
                   
                  
                 
                
               
              
             
            
           
          
         
        
       
      
     

这里采用源文件注释的方式对字段进行说明，可以是更方便的了解字段意思，各位老铁可直接复制粘贴，修改之后使用。