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This is useful for e.g. HP EliteBook 2560p.
In coreboot config, enable e.g. (for lbmk blobutil):
CONFIG_KBC1126_FW1="../../ec/hp2560p/ec.bin.fw1"
CONFIG_KBC1126_FW2="../../ec/hp2560p/ec.bin.fw2"
In resources/blobs/sources you would have these entries:
EC_url
EC_url_bkup
EC_hash
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In cases where the vendor update file contains a full
ROM image encompassing IFD+GbE+ME+BIOS, blobutil was
saving the *entire* ROM containing those, as me.bin.
For example, if it's an 8MB ROM, blobutil would create
a me.bin file that is actually the whole ROM containing:
* Vendor IFD region
* Vendor GbE(if it has one)
* Vendor ME region
* Vendor BIOS region
This fix tries with -M and -O first. In this combination,
me_cleaner shall extract me.bin (neutered) and save it.
If that fails, then the normal method with just -O is
tried, which by this logic would always be a lone ME
image if it succeeds.
I tested downloading ME images on existing boards with
this, and it didn't break them, and this fixes the bug.
This is done for HP 8200 SFF which Riku_V is adding to
lbmk. I'm on IRC with Riku_V as I write this commit
message! Super hot hotfix patch.
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This fixes errors when running that script.
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always use tabs
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Bruteforce it. Some executables are just using inno
archival but some are simple LZMA. This patch handles
both of them, and also the event where you have LZMA
compressed files (even LZMA compressed files within
LZMA compressed archives) within any inno/lzma compressed
executable.
It recursively scans inside a vendor update, to find
a me.bin files for neutering with me_cleaner.
This is in preparation for two new ports in Libreboot:
* HP EliteBook 8560w
* Apple MacBook Air 4,2 (2011)
This script can literally be used with multiple vendors now.
It is no longer specific just to Lenovo. I originally did
this and other recent commits to the file, as one big
commit, but I decided to split it all up into small commits.
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This patch makes it easier to determine which part does what.
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Basically, I really like OpenBSD coding style, and I want to
replicate this, somewhat, in shell scripts.
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Top-down order is easier to read, for greater understanding.
What's moved is initialisation. The glue that calls Build_deps
and Download_needed still need to be at the bottom.
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It's called first, so declare it first!
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for example, files being downloaded have nothing to do
with the ME; they are merely compressed, and contain many
files in addition to it
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libre mrc on haswell is quite buggy for now, but works in
a limited fashion
this patch re-adds the old configs, but as _mrc for example
t440p_12mb_mrc instead of t440p_12mb
and t440p_12mb (without _mrc) still uses the libre mrc code
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courtesy of Angel Pons from the coreboot project
this uses the following patch set from gerrit, as yet
unmerged (in coreboot master) on this date:
https://review.coreboot.org/c/coreboot/+/64198/5
logic for downloading mrc blobs has been deleted from
lbmk, as this is now completely obsolete (for haswell
boards)
if other platforms are added later that need mrc.bin,
then logic will be re-added again for that
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some checks check for specific utils, which are
then used to indicate the existence of other utils,
which means that building them singularly, as is
currently done, may result in errors later if another
tool doesn't exist compiled yet
this is an obscure bug, fixed by this patch. more of a
workaround really. a dirty hack. when checking for any
of the coreboot utilities required, build all coreboot
utilities that are possibly required
the utilities are small enough that this does not add
much extra time to build, and in most cases, all of them
will be needed anyway
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Part 2
Signed-off-by: Ferass 'Vitali64' EL HAFIDI <vitali64pmemail@protonmail.com>
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the --nuke option in ifdtool will be used instead, to nuke
the ME regions in specific rom sets (and cbfstool will be
used to delete mrc.bin files from rom sets)
the new method being implemented is heavier on disk io, but
simplifies lbmk, and disk io could still be optimised in
the following ways:
* when copying roms from boards with ME in them, use
ifdtool --nuke to get filename.rom.new, and *move* (not copy)
filename.rom.new to the new destination (for use with tar)
* possibly modify ifdtool to make efficient use of mmap for
disk i/o; it currently loads entire roms into an allocated
buffer in memory
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the intended use-case scenario was one in which vga rom initialisation
would be used, on desktop configurations, but without coreboot itself
handling vga rom initialisation, instead leaving that task to seabios
it was assumed that grub, when running on the bare metal with
build option "--with-platform=coreboot" would be able to display
like this, but it is not so when tested
in such setups (add-on gpu with grub payload), it is necessary to
extract the video bios and insert it into the coreboot rom, having
coreboot handle such execution. this is beyond the scope of lbmk,
in context of automated building, because we cannot reliably predict
things such as PCI IDs
do away with this build option entirely, for it does not serve the
intended purpose. it will be necessary to run PC GRUB instead (build
option --with-platform=i386-pc). PC GRUB can still read from CBFS,
and you could provide it as a floppy image file inside CBFS for
SeaBIOS to execute. in this setup, GRUB would function as originally
intended by the seabios_withgrub option; such a configuration is
referred to as "SeaGRUB" by the libreboot project, and experimentation
was done with it in the past, to no avail
it's better to keep things simple, in the libreboot project. simpler
for users, that is
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osboot is now part of libreboot, and will soon shut down.
libreboot now conforms to osboot policy.
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