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dracut: Implement ACPI table overriding 

An example config file for this feature could be:

/etc/dracut.conf.d/03-acpi-override.conf

with this content:
acpi_override="yes"
acpi_table_dir="/etc/dracut.conf.d/acpi_tables"

Then all files ending with *.aml will be put into the early cpio
(kernel/firmware/acpi) and will be used to replace the BIOS provided tables
if the kernel supports this feature.

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Thomas Renninger 2013-09-27 20:10:39 +02:00 committed by Harald Hoyer
parent ff33b57676
commit ebc7f823c0
1 changed files with 11 additions and 0 deletions
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11
dracut.sh
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@ -1337,6 +1337,17 @@ if [[ $early_microcode = yes ]]; then
done done
fi fi


if [[ $acpi_override = yes ]] && [[ -d $acpi_table_dir ]]; then
dinfo "*** Packaging ACPI tables to override BIOS provided ones ***"
_dest_dir="$early_cpio_dir/d/kernel/firmware/acpi"
mkdir -p $_dest_dir
for table in $acpi_table_dir/*.aml; do
dinfo " Adding ACPI table: $table"
cp $table $_dest_dir
create_early_cpio="yes"
done
fi

rm -f -- "$outfile" rm -f -- "$outfile"
dinfo "*** Creating image file ***" dinfo "*** Creating image file ***"
if [[ $create_early_cpio = yes ]]; then if [[ $create_early_cpio = yes ]]; then