On 14.05.14 06:11, Gavin Shan wrote:
The address of passed PCI devices (domain:bus:slot:func) might be quite different from the perspective of host and guest. We have to trace the address mapping so that we can emulate EEH RTAS requests from guest. The patch introduces additional fields to eeh_pe and eeh_dev for the purpose. Also, the patch adds function eeh_vfio_pe_get() and eeh_vfio_dev_get() to search EEH PE or device according to the given guest address. Both of them will be used by subsequent patches. Signed-off-by: Gavin Shan <gwshan@xxxxxxxxxxxxxxxxxx>
I don't see the point of VFIO knowing about guest addresses. They are not unique across a system and the whole idea that a VFIO device has to be owned by a guest is also pretty dubious.
I suppose what you really care about here is just a token for a specific device? But why do you need one where we don't have tokens yet?
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