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pkg/firmware: Add a package with firmware required by enabled device drivers

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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>
This commit is contained in:
Rolf Neugebauer
2018-01-16 15:16:24 +00:00
parent f09d0227bc
commit 1d9c4361c0
3 changed files with 58 additions and 0 deletions
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pkg/firmware/README.md Normal file
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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.