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  1. XenServer Org
  2. XSO-878

Basic VM operations broken without emu-manager

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    • Enquiry
    • Status: Wishlist (View Workflow)
    • Major
    • Resolution: Unresolved
    • 7.5
    • None
    • API
    • None

    Description

      Since XS 7.4 suspend, resume and migrate depend on the closed-source emu-manager.
       
      How it used to work:
       
      During VM suspend, resume and migrate, xenopsd communicates directly with xenguest to handle reading and writing the libxc VM save record.
       
      How it works now:
       
      With vGPU migration, the process is more complex as there is now both a libxc save record and the vGPU emulator state. Both of these must be written (on suspend) and read (on restore) - coordinating how this happens is delegated, by xenopsd to the closed-source emu-manager process. This process is always used for suspend and resume, whether or not the VM uses vGPU. In XS 7.4 there was an option to not use emu-manager, however this was removed in XS 7.5.
       
      Proposed solutions:
          

      • Open source emu-manager so it can be used by XCP-ng
      • Reintroduce to xenopsd the option to bypass emu-manager

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            bobba Bob Ball
            olivierlambert Olivier Lambert
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            Dates

              Created:
              Updated: