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Incorporate COREBOOT_DIr mod and VSCC optioanl setting

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This commit is contained in:
ThePlexus 2023-04-10 13:43:54 +01:00
parent 668d7739ce
commit b64077fac6
2 changed files with 38 additions and 13 deletions
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45
blobs/p8z77-m_pro/download_BIOS_clean.sh
View File

@ -2,26 +2,40 @@
# P7 ASUS
function printusage {
echo "Usage: $0 -m <me_cleaner>(optional)"
echo "Usage: $0 -m <me_cleaner> -c <COREBOOT_DIR>"
}
BLOBDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
BLOB_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
if [ "$#" -eq 0 ]; then printusage; fi
while getopts ":m:i:" opt; do
while getopts ":m:c:" opt; do
case $opt in
m)
if [ -x "$OPTARG" ]; then
MECLEAN="$OPTARG"
fi
;;
c)
if [ -x "$OPTARG" ]; then
COREBOOT_DIR="$OPTARG"
fi
;;
esac
done
if [[ -z "${COREBOOT_DIR}" ]]; then
COREBOOT_DIR="$(find "${BLOB_DIR}/../../build/x86/" -maxdepth 1 -type d -name 'coreboot-*')"
if [[ -z "${COREBOOT_DIR}" ]]; then
echo "ERROR: No COREBOOT_DIR variable defined, and no coreboot path found automagically."
exit 1
fi
fi
if [ -z "$MECLEAN" ]; then
MECLEAN=`command -v $BLOBDIR/../../build/x86/coreboot-*/util/me_cleaner/me_cleaner.py 2>&1|head -n1`
MECLEAN=`command -v $COREBOOT_DIR/util/me_cleaner/me_cleaner.py 2>&1|head -n1`
if [ -z "$MECLEAN" ]; then
echo "me_cleaner.py required but not found or specified with -m. Aborting."
exit 1;
@ -30,8 +44,8 @@ fi
CAP_ZIP_SHA256SUM="baf7f513227542c507e46735334663f63a0df5be9f6632d7b0f0cca5d3b9f980 P8Z77-M-PRO-ASUS-2203.zip"
CAP_FILE_SHA256SUM="d9bf292778655d4e20f5db2154cd6a2229e42b60ce670a68d759f1dac757aaf0 P8Z77-M-PRO-ASUS-2203.CAP"
FINAL_IFD_SHA256SUM="092caeee117de27c0eb30587defcb6449a33c7c325b6f3c47b5a7a79670b5c3f $BLOBDIR/ifd.bin"
FINAL_ME_SHA256SUM="8dda1e8360fbb2da05bfcd187f6e7b8a272a67d66bc0074bbfd1410eb35e3e17 $BLOBDIR/me.bin"
FINAL_IFD_SHA256SUM="702570d59c11b9b70ab9d54b26ff0906a07edf15eebe63f40bcecb04b955969f ifd.bin"
FINAL_ME_SHA256SUM="8dda1e8360fbb2da05bfcd187f6e7b8a272a67d66bc0074bbfd1410eb35e3e17 me.bin"
ZIPURL="https://dlcdnets.asus.com/pub/ASUS/mb/LGA1155/P8Z77-M_PRO/P8Z77-M-PRO-ASUS-2203.zip"
ZIPFILENAME=`echo $ZIPURL | sed 's/.*\///'`
@ -56,16 +70,21 @@ echo "### extracing BIOS from Capsule"
dd bs=1024 skip=2 if=P8Z77-M-PRO-ASUS-2203.CAP of=P8Z77-M-PRO-ASUS-2203.ROM || { echo "Failed to de-cap the ROM..." && exit 1; }
echo "### Applying me_cleaner to neuter and truncate."
$MECLEAN -S -r -t -d -O /tmp/unneeded.bin -D "$BLOBDIR/ifd.bin" -M "$BLOBDIR/me.bin" P8Z77-M-PRO-ASUS-2203.ROM
$MECLEAN -S -r -t -d -O /tmp/unneeded.bin -D "ifd.bin" -M "me.bin" P8Z77-M-PRO-ASUS-2203.ROM
echo "### Modifying VSCC length and identifiers"
printf '\x00' | dd of="$BLOBDIR/ifd.bin" bs=1 seek=3837 count=1 conv=notrunc
printf '\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF' | dd of="$BLOBDIR/ifd.bin" bs=1 seek=3568 count=32 conv=notrunc
echo "### Verifying expected hashes"
if [[ "${CONFIG_ZERO_IFD_VSCC}" =~ ^(Y|y)$ ]]; then
FINAL_IFD_SHA256SUM="092caeee117de27c0eb30587defcb6449a33c7c325b6f3c47b5a7a79670b5c3f ifd.bin"
echo "### Modifying VSCC length and identifiers"
printf '\x00' | dd of=ifd.bin bs=1 seek=3837 count=1 conv=notrunc
printf '\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF' | dd of=ifd.bin bs=1 seek=3568 count=32 conv=notrunc
echo "### Verifying expected hashes"
else
echo "### Skipping VSCC modification by config"
fi
echo "$FINAL_IFD_SHA256SUM" | sha256sum --check || { echo "Failed sha256sum verification on generated IFD bin..." && exit 1; }
mv ifd.bin $BLOB_DIR/ifd.bin
echo "$FINAL_ME_SHA256SUM" | sha256sum --check || { echo "Failed sha256sum verification on generated ME binary..." && exit 1; }
mv me.bin $BLOB_DIR/me.bin
echo "###Cleaning up..."
cd -

6
boards/p8z77-m_pro-tpm1-maximized/p8z77-m_pro-tpm1-maximized.config
View File

@ -71,6 +71,8 @@ export CONFIG_BOOT_KERNEL_REMOVE="quiet"
export CONFIG_BOOT_DEV="/dev/sda1"
export CONFIG_BOARD_NAME="P8Z77-M PRO"
export CONFIG_FLASHROM_OPTIONS="-p internal"
#Set this option to zero out the VSCC table https://github.com/osresearch/heads/pull/1358#discussion_r1153251399
export CONFIG_ZERO_IFD_VSCC=y
# Make the Coreboot build depend on the following 3rd party blobs:
$(build)/coreboot-$(CONFIG_COREBOOT_VERSION)/$(BOARD)/.build: \
@ -79,3 +81,7 @@ $(build)/coreboot-$(CONFIG_COREBOOT_VERSION)/$(BOARD)/.build: \
$(pwd)/blobs/p8z77-m_pro/me.bin:
COREBOOT_DIR="$(build)/$(coreboot_base_dir)" \
$(pwd)/blobs/p8z77-m_pro/download_BIOS_clean.sh
$(pwd)/blobs/p8z77-m_pro/ifd.bin:
COREBOOT_DIR="$(build)/$(coreboot_base_dir)" \
$(pwd)/blobs/p8z77-m_pro/download_BIOS_clean.sh