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    Introduce device aliases · 5da9c980
    Daniel P. Berrange 提交于
    This patch introduces the support for giving all devices a short,
    unique name, henceforth known as a 'device alias'.  These aliases
    are not set by the end user, instead being assigned by the hypervisor
    if it decides it want to support this concept.
    
    The QEMU driver sets them whenever using the -device arg syntax
    and uses them for improved hotplug/hotunplug. it is the intent
    that other APIs (block / interface stats & device hotplug) be
    able to accept device alias names in the future.
    
    The XML syntax is
    
       <alias name="video0"/>
    
    This may appear in any type of device that supports device info.
    
    * src/conf/domain_conf.c, src/conf/domain_conf.h: Add a 'alias'
      field to virDomainDeviceInfo struct & parse/format it in XML
    * src/libvirt_private.syms: Export virDomainDefClearDeviceAliases
    * src/qemu/qemu_conf.c: Replace use of "nic_name" field with the
      standard device alias
    * src/qemu/qemu_driver.c: Clear device aliases at shutdown
    5da9c980
qemu_driver.c 266.1 KB