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d97079d793
Based on the latest version of the virtio specification, the structure virtio_pci_cap has been updated and a new structure virtio_pci_cap64 has been introduced. virtio_pci_cap now includes a field "id" that does not modify the existing structure size since there was a 3 bytes reserved field already there. The id is used in the context of shared memory regions which need to be identified since there could be more than one of this kind of capability. virtio_pci_cap64 is a new structure that includes virtio_pci_cap and extends it to allow 64 bits offsets and 64 bits region length. This is used in the context of shared memory regions capability, as we might need to describe regions of 4G or more, that could be placed at a 4G offset or more in the associated BAR. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>