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linuxkit/pkg/firmware/README.md
Rolf Neugebauer 1d9c4361c0 pkg/firmware: Add a package with firmware required by enabled device drivers 
This new 'firmware' package contains the firmware blobs required
by the device drivers in a LinuxKit kernel. The list of required
blobs is determined by calling 'modinfo' on each module.

We also unconditionally include the AMD CPU microcode and the
licence files.

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
2018-01-16 19:08:18 +00:00

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The firmware package contains updated firmware files required by any driver compiled as a module. Based on the modules included in a recent LinuxKit kernel, copy the required firmware binaries as reported by 'modinfo'. We deliberately do not pick the latest version here to prevent it being updated on kernel updates. Firmware revisions do not change very often and we expect older and newer kernels to work with a range of firmware binaries.

Note: The current mechanism only handles firmware blobs required by modules and ignores firmware blobs required by drivers compiled into the kernel. However, with the LinuxKit kernels we typically compile all hardware drivers as modules.