Re: [Xen-devel] libxl_device handling for nic and vtmp

[Olaf Hering <olaf@xxxxxxxxx>]

On Thu, Feb 18, Wei Liu wrote:

> Sorry I don't follow. What do you mean by 1:1 copy? Why does it make the
> update unnecessary?

The current code does:

  libxl_device_nic_init(&nic_saved);
  libxl_device_nic_copy(CTX, &nic_saved, nic);
  nic->devid = libxl__device_nextid(gc, domid, "vif");
  libxl__update_config_nic(gc, &nic_saved, nic);

Which is equivalent to the more obvious version:

  libxl_device_nic_init(&nic_saved);
  nic->devid = libxl__device_nextid(gc, domid, "vif");
  libxl_device_nic_copy(CTX, &nic_saved, nic);

The input gets modified either way. Is it expected that future versions
of libxl_device_nic/vtmp_copy will not duplicate the mac/uuid parts?


Olaf

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