[vbox-dev] Using HGCM
revol at free.fr
Thu Mar 11 02:08:55 PST 2010
Le Thu, 11 Mar 2010 10:51:19 +0100, Vitali Pelenjow a écrit :
> Hi Nev,
> HGSMI uses a virtual device memory to exchange data between host and
> guest. Currently it is only implemented for the virtual VGA device.
> Both guest and host can place some data in the guest VRAM and then
> other side will read data. Guest informs host using an port IO,
> host can inform guest using an IRQ or the guest can poll an IO port.
Maybe it could be done as an extension of the shared files ? or a
twisted version of it... vboxsf would handle mmap() requests for some
specific files by cloning the pci pages, and the host can always mmap()
a file there...
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