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authorPatrick Georgi <pgeorgi@google.com>2016-12-07 12:12:59 +0100
committerPatrick Georgi <pgeorgi@google.com>2016-12-13 19:46:01 +0100
commit0803ba47a418ccbe26913f7b7600313d650891de (patch)
tree9771df86a01ba1210cb3dff867c9618b272400ba /src/vendorcode/google
parent4399b85fdd6cc8b9e63e5dcac4f72eb93d9292b4 (diff)
downloadcoreboot-0803ba47a418ccbe26913f7b7600313d650891de.tar.xz
vendorcode/google/chromeos: zero out SHARED_DATA region
BUG=chromium:595715 BRANCH=none TEST=/build/$board/firmware/coreboot.rom has a zeroed out SHARED_DATA region if it exists. Change-Id: Ib1e6fd62bcf987872890c6d155287dcedb0b1f40 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: e8a88bf744f44d034f8606a556014e2bee37eda1 Original-Change-Id: I0b59f1f0e2f8645000f83cb3ca7f49e4da726341 Original-Signed-off-by: Patrick Georgi <pgeorgi@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/417821 Original-Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org> Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-on: https://review.coreboot.org/17789 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/vendorcode/google')
-rw-r--r--src/vendorcode/google/chromeos/Makefile.inc6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/Makefile.inc b/src/vendorcode/google/chromeos/Makefile.inc
index cd3831c414..e84eb3d231 100644
--- a/src/vendorcode/google/chromeos/Makefile.inc
+++ b/src/vendorcode/google/chromeos/Makefile.inc
@@ -107,6 +107,12 @@ build_complete:: $(obj)/gbb.region $(obj)/fwid.region
$(CBFSTOOL) $(obj)/coreboot.rom write -u -r RW_FWID_A -i 0 -f $(obj)/fwid.region
$(CBFSTOOL) $(obj)/coreboot.rom write -u -r RW_FWID_B -i 0 -f $(obj)/fwid.region
+ifneq ($(shell grep "SHARED_DATA" "$(CONFIG_FMDFILE)"),)
+build_complete::
+ printf "\0" > $(obj)/shared_data.region
+ $(CBFSTOOL) $(obj)/coreboot.rom write -u -r SHARED_DATA -i 0 -f $(obj)/shared_data.region
+endif
+
# Extract FW_MAIN_? region and minimize it if the last file is empty, so it
# doesn't contain this empty file (that can have a significant size),
# improving a lot on hash times due to a smaller amount of data loaded from