Adding the VBT file makes it available through some ACPI memory area
and apparently the VBT contains the information needed by the i915 driver
in order to figure out how to control the screen's backlight.
Without the VBT, we can't control the screen backlight with Fn-F5/Fn-F6
anymore.
In addition to being able to flash a ROM from the GUI, it would also be
useful for a user to be able to add a GPG key to their keyring using the
flashing tool. This change adds the ability for a user to edit both a
ROM located on a USB key and also edit the running BIOS by using
flashrom to make a local copy of the running BIOS, edit it, then reflash
it. This also supports the upcoming delete feature in CBFS for
circumstances where keyring files already exist within CBFS.
If we want to modify a running BIOS we will need the ability to pull
down the current BIOS, modify it, and then reflash. This change adds a
read option to flash.sh and pulls down three versions of the BIOS and
only exists successfully if all three match.
To be able to boot a disk image, passed to QEMU with `-hda
/path/qemu.img`, the appropriate modules are needed. Strange, `libata`
is not enough, and the drive is only detected, when the module `ahci` is
loaded.
> ata1.00: ATA-7: QEMU HARDDISK, 2.5+, max UDMA/100
Tested with QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7)
with the command below,
qemu-system-x86_64 -enable-kvm -M q35 -m 1G -bios \
qemu-coreboot/coreboot.rom -serial stdio -L /dev/shm -hda \
/dev/shm/qemu-debian.img
where `qemu-debian.img` is created with grml-debootstrap.
grml-debootstrap --vmfile --vmsize 3G --target \
/dev/shm/qemu-debian.img -r sid
To keep the flash logic simpler the GUI logic has been split into a
flash-gui.sh program so flash.sh behaves closer to the original flashrom
scripts it was based from. I've also removed the previous flashrom
scripts and incorporated their options into flash.sh. Finally I set
CONFIG_BOARD via the Makefile instead of setting a duplicate option in
each board's config.
Based on the conversation for PR #406, we decided to go with a more
generic script for general-purpose flashing instead of having individual
(and therefore very similar) flash scripts for each board type. This
script currently handles flashrom on Librem and X230 board types and
introduces a new CONFIG_BOARD option that sets specific flashrom
arguments based on the board.
It also adds support to gui-init to call this flash script.
Currently the TPM counter label is hard-coded. By changing it to a
variable in this function we can reuse all of the TPM counter functions
to create other monotonic counters in the TPM (if the hardware supports
it) with custom labels.
