Hi,
I get a question about the pvdriver which is really confusing me in these
days. It's about how it works. I went through some documents (papers) said
that pvdrivers helped transfer data between backends and frontends with
grant-table operations like they transferred memory pages (containing data) to
complete transmission, or frontends mapped address space of backends so they can
directly write data in or read out. However some other docs said that way was
already abandoned and now they used shared memory and copied data twice (in and
out) to complete transmission.
Can someone help me about this? I would be much appreciated as it can saves
me much time and energy to go deep down to the code myself.
Best regards,
Kenneth
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