b447b78b17
Added an array option static_size_mb to the kvmfr module to create a list of in-memory kvmfr devices. These devices support dmabuf just like normal kvmfr devices. Additionally, they can be mmap'd, which allows them to be passed to qemu as ivshmem devices. |
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|---|---|---|
| .. | ||
| dkms.conf | ||
| kvmfr.c | ||
| kvmfr.h | ||
| Makefile | ||
| README.md | ||
| test.c | ||
This kernel module implements a basic interface to the IVSHMEM device for LookingGlass when using LookingGlass in VM->VM mode.
Compiling (Manual)
Make sure you have your kernel headers installed first, on Debian/Ubuntu use the following command.
apt-get install linux-headers-$(uname -r)
Then simply run make and you're done.
Loading
This module requires the uio module to be loaded first, loading it is as
simple as:
modprobe uio
insmod kvmfr.ko
Compiling & Installing (DKMS)
You can install this module into DKMS so that it persists across kernel upgrades. Simply run:
dkms install .
Loading
Simply modprobe the module:
modprobe kvmfr
Usage
This will create the /dev/kvmfr0 node that represents the KVMFR interface.
To use the interface you need permission to access it by either creating a
udev rule to ensure your user can read and write to it, or simply change it's
ownership manually, ie:
sudo chown user:user /dev/kvmfr0
Usage with looking glass is simple, you only need to specify the path to the device node, for example:
./looking-glass-client -f /dev/kvmfr0