# Configuration for a T530 running Qubes and other Linux Based OSes (through kexec)
#
# Includes 
# - Deactivated+neutered ME and expanded consequent IFD BIOS regions 
# - Forged 00:DE:AD:C0:FF:EE MAC address  (if not extracting gbe.bin from backup with blobs/xx30/extract.sh)
#   - Note that this MAC address can be modified under build/coreboot-VER/util/bincfg/gbe-82579LM.set
#
# - Includes Nitrokey/Librem Key HOTP Security dongle remote attestation (in addition to TOTP remote attestation through Qr Code)
# This board is designed for a t530 with a dGPU. Initialization of the dGPU is necessary in order to use an external monitor via the DisplayPort (either the in-built mini-DisplayPort or the DisplayPort in the dock). In order to build this the relevant script in the blobs directory must be run (or self-pulled roms placed in that directory) and after building the rom, the nvramtool must be run on the 12MB rom to change the default graphics mode away from integrated-only graphics (see README_vbios in the blobs directory).
export CONFIG_COREBOOT=y
export CONFIG_COREBOOT_VERSION=4.13
export CONFIG_LINUX_VERSION=4.14.62

CONFIG_COREBOOT_CONFIG=config/coreboot-t530-dgpu-maximized.config
CONFIG_LINUX_CONFIG=config/linux-x230-maximized.config

#Additional hardware support
CONFIG_LINUX_USB=y
CONFIG_LINUX_E1000E=y

CONFIG_CRYPTSETUP=y
CONFIG_FLASHROM=y
CONFIG_FLASHTOOLS=y
CONFIG_GPG2=y
CONFIG_KEXEC=y
CONFIG_UTIL_LINUX=y
CONFIG_LVM2=y
CONFIG_MBEDTLS=y
CONFIG_PCIUTILS=y

#Remote attestation support
#TPM based requirements
export CONFIG_TPM=y
CONFIG_POPT=y
CONFIG_QRENCODE=y
CONFIG_TPMTOTP=y
#HOTP based remote attestation for supported USB Security dongle
#With/Without TPM support
CONFIG_HOTPKEY=n

#Nitrokey Storage admin tool
CONFIG_NKSTORECLI=n

#GUI Support
#Console based Whiptail support(Console based, no FB):
#CONFIG_SLANG=y
#CONFIG_NEWT=y
#FBWhiptail based (Graphical):
CONFIG_CAIRO=y
CONFIG_FBWHIPTAIL=y

#Additional tools:
#SSH server (requires ethernet drivers, eg: CONFIG_LINUX_E1000E)
CONFIG_DROPBEAR=y

export CONFIG_BOOTSCRIPT=/bin/gui-init
export CONFIG_BOOT_REQ_HASH=n
export CONFIG_BOOT_REQ_ROLLBACK=n
export CONFIG_BOOT_KERNEL_ADD="intel_iommu=on intel_iommu=igfx_off"
export CONFIG_BOOT_KERNEL_REMOVE="quiet"
export CONFIG_BOOT_DEV="/dev/sda1"
export CONFIG_BOARD_NAME="Thinkpad T530-dgpu-maximized"
export CONFIG_FLASHROM_OPTIONS="--force --noverify-all -p internal"

# xx30-*-maximized boards require of you initially call one of the
#  following to have gbe.bin ifd.bin and me.bin
#  - blobs/xx30/download_clean_me.sh
#     To download Lenovo original ME binary, neuter+deactivate ME, produce
#      reduced IFD ME region and expanded BIOS IFD region.
#  - blobs/xx30/extract.sh
#     To extract from backuped 8M (bottom SPI) ME binary, GBE and IFD blobs.
#
# This board has two SPI flash chips, an 8 MB that holds the IFD,
# the ME image and part of the coreboot image, and a 4 MB one that
# has the rest of the coreboot and the reset vector.
#   
# As a consequence, this replaces the need of having to flash t530-flash 
#  and expands available CBFS region (11.5Mb available CBFS space)
#
# When flashing via an external programmer it is easiest to have
# two separate files for these pieces.
all: $(build)/$(BOARD)/$(CB_OUTPUT_FILE)
	@sha256sum $@ | tee -a "$(HASHES)"

all: $(build)/$(BOARD)/heads-$(BOARD)-$(HEADS_GIT_VERSION)-bottom.rom
$(build)/$(BOARD)/heads-$(BOARD)-$(HEADS_GIT_VERSION)-bottom.rom: $(build)/$(BOARD)/$(CB_OUTPUT_FILE)
	$(call do,DD 8MB,$@,dd of=$@ if=$< bs=65536 count=128 skip=0 status=none)
	@sha256sum $@ | tee -a "$(HASHES)"

all: $(build)/$(BOARD)/heads-$(BOARD)-$(HEADS_GIT_VERSION)-top.rom
$(build)/$(BOARD)/heads-$(BOARD)-$(HEADS_GIT_VERSION)-top.rom: $(build)/$(BOARD)/$(CB_OUTPUT_FILE)
	$(call do,DD 4MB,$@,dd of=$@ if=$< bs=65536 count=64 skip=128 status=none)
	@sha256sum $@ | tee -a "$(HASHES)"