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authorDuncan Laurie <dlaurie@chromium.org>2016-01-25 17:13:27 -0800
committerPatrick Georgi <pgeorgi@google.com>2016-02-09 13:19:36 +0100
commit88b28ada69d032faf37753f0595658d507859d4a (patch)
tree24ce7c685c3fdf66a434d2f6281ca7e350a530d1 /src/lib
parenta7ba56e3ce56c8569e2ac5ddb2d2b6c71458d9cb (diff)
downloadcoreboot-88b28ada69d032faf37753f0595658d507859d4a.tar.xz
chromeos: Add vbnv wrapper for the different backends
Add a wrapper around the vbnv implementations and call into the different backend functions from there. Also move some of the common functions to the common code and simplify the backend drivers. This will allow some of the code to be re-used so the CMOS backend can backup the data into the flash backend. One side effect of this is that the cache of VBNV was removed from CMOS and EC backends and moved into the VBNV wrapper, but the flash backend also still has a separate cache because it has more state and complexity in the implementation. The wrapper cached data is not used for normal vbnv_read/vbnv_write because some callers need the ability to force a write if the backend storage is cleared (i.e. CMOS clear). BUG=chrome-os-partner:47915 BRANCH=glados TEST=build and boot on chell Change-Id: I4d2e0e99af7e8a44aec77ad9991507401babcca6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: c30f60434a64f6c0eb9ede45d48ddafff19dd24f Original-Change-Id: Ia97f6607c5ad837b9aa10b45211137221ccb93a0 Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/324120 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13597 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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