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From ebc7f823c0013dfe7fcefe82db48bf4832f5dcec Mon Sep 17 00:00:00 2001
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From: Thomas Renninger <trenn@suse.de>
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Date: Fri, 27 Sep 2013 20:10:39 +0200
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Subject: [PATCH] dracut: Implement ACPI table overriding
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An example config file for this feature could be:
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/etc/dracut.conf.d/03-acpi-override.conf
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with this content:
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acpi_override="yes"
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acpi_table_dir="/etc/dracut.conf.d/acpi_tables"
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Then all files ending with *.aml will be put into the early cpio
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(kernel/firmware/acpi) and will be used to replace the BIOS provided tables
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if the kernel supports this feature.
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Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Signed-off-by: Thomas Renninger <trenn@suse.de>
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---
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dracut.sh | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/dracut.sh b/dracut.sh
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index e43227e..b4b3e13 100755
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--- a/dracut.sh
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+++ b/dracut.sh
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@@ -1337,6 +1337,17 @@ if [[ $early_microcode = yes ]]; then
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done
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fi
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+if [[ $acpi_override = yes ]] && [[ -d $acpi_table_dir ]]; then
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+ dinfo "*** Packaging ACPI tables to override BIOS provided ones ***"
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+ _dest_dir="$early_cpio_dir/d/kernel/firmware/acpi"
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+ mkdir -p $_dest_dir
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+ for table in $acpi_table_dir/*.aml; do
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+ dinfo " Adding ACPI table: $table"
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+ cp $table $_dest_dir
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+ create_early_cpio="yes"
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+ done
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+fi
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+
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rm -f -- "$outfile"
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dinfo "*** Creating image file ***"
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if [[ $create_early_cpio = yes ]]; then
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