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Empty cdroms are not going to connect, avoid waiting for the backend to switch to state 4, which is never going to happen, and return error instead from XenPvBlockFrontInitialization(). Detect an empty cdrom by looking at the "params" node on xenstore, which is set to "" or "aio:" for empty drives by libxl. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18651 6f19259b-4bc3-4df7-8a09-765794883524
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Acidanthera UEFI Development Kit based on EDK II edk2-stable202405
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