Disabling IOMMU on the iGPU for Heads (mostly) eliminates
display corruption when kexec'ing to new kernel (and has no effect
on iGPU/IOMMU for kexec'ed kernel)
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
Drop coreinto/memtest secondary payloads as they are not
usable with Linux as primary payload. Leftover copy-pasta
from original SeaBIOS configs.
Signed-off-by: Matt DeVillier <matt.devillier@puri.sm>
The Librem coreboot is labeled with the current version and is visible
from dmidecode and is supposed to reflect the current version of
coreboot, however it was out of date and reflected 4.7 when Heads has
moved on to 4.8.1.
I've also added a simple change to further simplify onboarding by
warning users who have Librem Key configured when they boot without it
being inserted.
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.
Fixes access to the EC through the Index I/O interface
Fixes AC and DC LoadLine values to avoid overheating problems
Fix Turbo mode value from EC
Change version name to have '-heads' suffix
By enabling Pass-through iommu, it fixes the GPU glitching issues
we've had with IOMMU, and it also allows us to boot a target kernel
without having to give it intel_iommu=igfx_off as argument.
