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  1. 26 5月, 2016 3 次提交
    • L
      conf: permit auto-assignment of controller indexes · 4d100c7a
      Laine Stump 提交于
      Hand-entering indexes for 20 PCI controllers is not as tedious as
      manually determining and entering their PCI addresses, but it's still
      annoying, and the algorithm for determining the proper index is
      incredibly simple (in all cases except one) - just pick the lowest
      unused index.
      
      The one exception is USB2 controllers because multiple controllers in
      the same group have the same index. For these we look to see if 1) the
      most recently added USB controller is also a USB2 controller, and 2)
      the group *that* controller belongs to doesn't yet have a controller
      of the exact model we're just now adding - if both are true, the new
      controller gets the same index, but in all other cases we just assign
      the lowest unused index.
      
      With this patch in place and combined with the automatic PCI address
      assignment, we can define a PCIe switch with several ports like this:
      
        <controller type='pci' model='pcie-root-port'/>
        <controller type='pci' model='pcie-switch-upstream-port'/>
        <controller type='pci' model='pcie-switch-downstream-port'/>
        <controller type='pci' model='pcie-switch-downstream-port'/>
        <controller type='pci' model='pcie-switch-downstream-port'/>
        <controller type='pci' model='pcie-switch-downstream-port'/>
        <controller type='pci' model='pcie-switch-downstream-port'/>
        ...
      
      These will each get a unique index, and PCI addresses that connect
      them together appropriately with no pesky numbers required.
      4d100c7a
    • L
      conf: make virDomainControllerFindUnusedIndex() more generally usable · 808e16ff
      Laine Stump 提交于
      Make virDomainControllerFindUnusedIndex() a global function so that it
      can be used outside domain_conf.c (as well as higher up in
      domain_conf.c itself)/ Also make its DomainDef arg a const* so that
      functions which only have a const* to the domain can use it.
      808e16ff
    • L
      conf/qemu: make IS_USB2_CONTROLLER globally available · 1140b31f
      Laine Stump 提交于
      IS_USB2_CONTROLLER() is useful in more places aside from just when
      assigning PCI addresses in QEMU, and is checking for enum values that
      are all defined in conf/domain_conf.h anyway, so define it there
      instead.
      1140b31f
  2. 25 5月, 2016 37 次提交