6.4-stable review patch. If anyone has any objections, please let me know.
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From: Sven Schnelle svens@linux.ibm.com
commit ea5717cb13468323a7c3dd394748301802991f39 upstream.
OS installers are relying on /sys/firmware/ipl/has_secure to be present on machines supporting secure boot. This file is present for all IPL types, but not the unknown type, which prevents a secure installation when an LPAR is booted in HMC via FTP(s), because this is an unknown IPL type in linux. While at it, also add the secure file.
Fixes: c9896acc7851 ("s390/ipl: Provide has_secure sysfs attribute") Cc: stable@vger.kernel.org Signed-off-by: Sven Schnelle svens@linux.ibm.com Reviewed-by: Heiko Carstens hca@linux.ibm.com Signed-off-by: Heiko Carstens hca@linux.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/s390/kernel/ipl.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -638,6 +638,8 @@ static struct attribute_group ipl_ccw_at
static struct attribute *ipl_unknown_attrs[] = { &sys_ipl_type_attr.attr, + &sys_ipl_secure_attr.attr, + &sys_ipl_has_secure_attr.attr, NULL, };