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[doc] Updated module readme

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Geoffrey McRae 2018-05-28 17:50:20 +10:00
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This kernel module implements a basic interface to the IVSHMEM device for This kernel module implements a basic interface to the IVSHMEM device for
LookingGlass when using LookingGlass in VM->VM mode. LookingGlass when using LookingGlass in VM->VM mode.
== Compiling == ## Compiling
Make sure you have your kernel headers installed first, on Debian/Ubuntu use Make sure you have your kernel headers installed first, on Debian/Ubuntu use
the following command. the following command.
@ -10,7 +10,7 @@ the following command.
Then simply run `make` and you're done. Then simply run `make` and you're done.
== Usage == ## Usage
This module requires the `uio` module to be loaded first, loading it is as This module requires the `uio` module to be loaded first, loading it is as
simple as: simple as:
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./looking-glass-client -f /dev/uio0 -L 16 ./looking-glass-client -f /dev/uio0 -L 16
== Note == ## Note
This module is not strictly required, it is possible to access the device This module is not strictly required, it is possible to access the device
via the /sys interface directly, for example: via the /sys interface directly, for example:
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./looking-glass-client -f /sys/devices/pci0000:00/0000:00:03.0/resource2_wc ./looking-glass-client -f /sys/devices/pci0000:00/0000:00:03.0/resource2_wc
Obviously adjusting the PCI device IDs as required. However while this is Obviously adjusting the PCI device IDs as required. However while this is
possible it is not recommended as access to the shared memory may be slower. possible it is not recommended as access to the shared memory is much slower.
== Issues ==
At this time VM->VM access atleast in this authors configurtion is slow, barely
exceeding 15fps at 1200p, it is still yet to be determined if this is an
architecture problem with this authors AMD ThreadRipper platform.