s390x assembly pack: add KMO code path for aes-ofb

Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5250)

1 files changed, 21 insertions, 0 deletions

diff --git a/crypto/s390xcpuid.pl b/crypto/s390xcpuid.pl
index b0ed9e0623..dfef2c129a 100755
--- a/crypto/s390xcpuid.pl
+++ b/crypto/s390xcpuid.pl
@@ -305,6 +305,27 @@ ___
 }
 
 ################
+# void s390x_kmo(const unsigned char *in, size_t len, unsigned char *out,
+#                unsigned int fc, void *param)
+{
+my ($in,$len,$out,$fc,$param) = map("%r$_",(2..6));
+$code.=<<___;
+.globl	s390x_kmo
+.type	s390x_kmo,\@function
+.align	16
+s390x_kmo:
+	lr	%r0,$fc
+	l${g}r	%r1,$param
+
+	.long	0xb92b0042	# kmo $out,$in
+	brc	1,.-4		# pay attention to "partial completion"
+
+	br	$ra
+.size	s390x_kmo,.-s390x_kmo
+___
+}
+
+################
 # void s390x_kma(const unsigned char *aad, size_t alen,
 #                const unsigned char *in, size_t len,
 #                unsigned char *out, unsigned int fc, void *param)