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71708c9794
The VIRTIO specification[1] says: > The upper 32 bits of the CID are reserved and zeroed. We should therefore not allow the user to supply a VSOCK CID with those bits set. To accomplish this, limit the public API of the virtio-vsock device to only accept 32-bit CIDs, while still using 64-bit CIDs internally since that's how virtio-vsock works. [1]: https://docs.oasis-open.org/virtio/virtio/v1.2/csd01/virtio-v1.2-csd01.html#x1-4400004 Signed-off-by: Alyssa Ross <hi@alyssa.is> (cherry picked from commit 451d3fb2f01b81c99580ee78ff35b376aba88138)