Files
s390-tools/zkey/initramfs/hooks/s390-tools-zkey
Ingo Franzki cd93949d17 zkey: Add phmac_s390 to initramfs and load it via modules-load.d
Add kernel module phmac_s390 to the initramfs hook and dracut config file
to ensure that the PHMAC cipher is available during early boot, in case
the root disk is integrity protected via PHMAC.

Also load phmac_s390 via modules-load.d to ensure that the PHMAC ciphers
are available.

Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Finn Callies <fcallies@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2026-01-19 13:03:19 +01:00

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#!/bin/sh
#
# Copyright IBM Corp. 2022
# Copyright Canonical Ltd 2018
#
# s390-tools is free software; you can redistribute it and/or modify
# it under the terms of the MIT license. See LICENSE for details.
#
# hooks/s390-tools-zkey
# This hook script adds zkey related utilities and zkey repository
# in the initramfs
#
# Needs to run after udev or resulting udev rules could be overwritten
PREREQ="udev"
prereqs()
{
echo "$PREREQ"
}
case $1 in
prereqs)
prereqs
exit 0
;;
esac
. /usr/share/initramfs-tools/hook-functions
# Add zcrypt modules
zdev_modules="uvdevice pkey pkey_cca pkey_ep11 pkey_pckmo pkey_uv paes_s390 phmac_s390 zcrypt zcrypt_cex4"
for x in $zdev_modules ; do
manual_add_modules ${x}
done
# copy utils
copy_exec /sbin/chzcrypt
copy_exec /sbin/lszcrypt
copy_exec /usr/bin/zkey
copy_exec /usr/bin/zkey-cryptsetup
copy_exec /usr/lib64/zkey/zkey-ekmfweb.so
copy_exec /usr/lib64/zkey/zkey-kmip.so
mkdir -p "${DESTDIR}/etc"
cp -a /etc/zkey "${DESTDIR}/etc/"