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-rw-r--r--src/lib/libcrypto/aes/asm/aesni-x86_64.pl992
1 files changed, 992 insertions, 0 deletions
diff --git a/src/lib/libcrypto/aes/asm/aesni-x86_64.pl b/src/lib/libcrypto/aes/asm/aesni-x86_64.pl
new file mode 100644
index 0000000000..49e0f4b351
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+++ b/src/lib/libcrypto/aes/asm/aesni-x86_64.pl
@@ -0,0 +1,992 @@
1#!/usr/bin/env perl
2#
3# ====================================================================
4# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
5# project. The module is, however, dual licensed under OpenSSL and
6# CRYPTOGAMS licenses depending on where you obtain it. For further
7# details see http://www.openssl.org/~appro/cryptogams/.
8# ====================================================================
9#
10# This module implements support for Intel AES-NI extension. In
11# OpenSSL context it's used with Intel engine, but can also be used as
12# drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for
13# details].
14
15$PREFIX="aesni"; # if $PREFIX is set to "AES", the script
16 # generates drop-in replacement for
17 # crypto/aes/asm/aes-x86_64.pl:-)
18
19$flavour = shift;
20$output = shift;
21if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
22
23$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
24
25$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
26( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
27( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
28die "can't locate x86_64-xlate.pl";
29
30open STDOUT,"| $^X $xlate $flavour $output";
31
32$movkey = $PREFIX eq "aesni" ? "movaps" : "movups";
33@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
34 ("%rdi","%rsi","%rdx","%rcx"); # Unix order
35
36$code=".text\n";
37
38$rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!!
39# this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ...
40$inp="%rdi";
41$out="%rsi";
42$len="%rdx";
43$key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!!
44$ivp="%r8"; # cbc
45
46$rnds_="%r10d"; # backup copy for $rounds
47$key_="%r11"; # backup copy for $key
48
49# %xmm register layout
50$inout0="%xmm0"; $inout1="%xmm1";
51$inout2="%xmm2"; $inout3="%xmm3";
52$rndkey0="%xmm4"; $rndkey1="%xmm5";
53
54$iv="%xmm6"; $in0="%xmm7"; # used in CBC decrypt
55$in1="%xmm8"; $in2="%xmm9";
56
57# Inline version of internal aesni_[en|de]crypt1.
58#
59# Why folded loop? Because aes[enc|dec] is slow enough to accommodate
60# cycles which take care of loop variables...
61{ my $sn;
62sub aesni_generate1 {
63my ($p,$key,$rounds)=@_;
64++$sn;
65$code.=<<___;
66 $movkey ($key),$rndkey0
67 $movkey 16($key),$rndkey1
68 lea 32($key),$key
69 pxor $rndkey0,$inout0
70.Loop_${p}1_$sn:
71 aes${p} $rndkey1,$inout0
72 dec $rounds
73 $movkey ($key),$rndkey1
74 lea 16($key),$key
75 jnz .Loop_${p}1_$sn # loop body is 16 bytes
76 aes${p}last $rndkey1,$inout0
77___
78}}
79# void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key);
80#
81{ my ($inp,$out,$key) = @_4args;
82
83$code.=<<___;
84.globl ${PREFIX}_encrypt
85.type ${PREFIX}_encrypt,\@abi-omnipotent
86.align 16
87${PREFIX}_encrypt:
88 movups ($inp),$inout0 # load input
89 mov 240($key),$rounds # pull $rounds
90___
91 &aesni_generate1("enc",$key,$rounds);
92$code.=<<___;
93 movups $inout0,($out) # output
94 ret
95.size ${PREFIX}_encrypt,.-${PREFIX}_encrypt
96
97.globl ${PREFIX}_decrypt
98.type ${PREFIX}_decrypt,\@abi-omnipotent
99.align 16
100${PREFIX}_decrypt:
101 movups ($inp),$inout0 # load input
102 mov 240($key),$rounds # pull $rounds
103___
104 &aesni_generate1("dec",$key,$rounds);
105$code.=<<___;
106 movups $inout0,($out) # output
107 ret
108.size ${PREFIX}_decrypt, .-${PREFIX}_decrypt
109___
110}
111
112# _aesni_[en|de]crypt[34] are private interfaces, N denotes interleave
113# factor. Why 3x subroutine is used in loops? Even though aes[enc|dec]
114# latency is 6, it turned out that it can be scheduled only every
115# *second* cycle. Thus 3x interleave is the one providing optimal
116# utilization, i.e. when subroutine's throughput is virtually same as
117# of non-interleaved subroutine [for number of input blocks up to 3].
118# This is why it makes no sense to implement 2x subroutine. As soon
119# as/if Intel improves throughput by making it possible to schedule
120# the instructions in question *every* cycles I would have to
121# implement 6x interleave and use it in loop...
122sub aesni_generate3 {
123my $dir=shift;
124# As already mentioned it takes in $key and $rounds, which are *not*
125# preserved. $inout[0-2] is cipher/clear text...
126$code.=<<___;
127.type _aesni_${dir}rypt3,\@abi-omnipotent
128.align 16
129_aesni_${dir}rypt3:
130 $movkey ($key),$rndkey0
131 shr \$1,$rounds
132 $movkey 16($key),$rndkey1
133 lea 32($key),$key
134 pxor $rndkey0,$inout0
135 pxor $rndkey0,$inout1
136 pxor $rndkey0,$inout2
137
138.L${dir}_loop3:
139 aes${dir} $rndkey1,$inout0
140 $movkey ($key),$rndkey0
141 aes${dir} $rndkey1,$inout1
142 dec $rounds
143 aes${dir} $rndkey1,$inout2
144 aes${dir} $rndkey0,$inout0
145 $movkey 16($key),$rndkey1
146 aes${dir} $rndkey0,$inout1
147 lea 32($key),$key
148 aes${dir} $rndkey0,$inout2
149 jnz .L${dir}_loop3
150
151 aes${dir} $rndkey1,$inout0
152 $movkey ($key),$rndkey0
153 aes${dir} $rndkey1,$inout1
154 aes${dir} $rndkey1,$inout2
155 aes${dir}last $rndkey0,$inout0
156 aes${dir}last $rndkey0,$inout1
157 aes${dir}last $rndkey0,$inout2
158 ret
159.size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3
160___
161}
162# 4x interleave is implemented to improve small block performance,
163# most notably [and naturally] 4 block by ~30%. One can argue that one
164# should have implemented 5x as well, but improvement would be <20%,
165# so it's not worth it...
166sub aesni_generate4 {
167my $dir=shift;
168# As already mentioned it takes in $key and $rounds, which are *not*
169# preserved. $inout[0-3] is cipher/clear text...
170$code.=<<___;
171.type _aesni_${dir}rypt4,\@abi-omnipotent
172.align 16
173_aesni_${dir}rypt4:
174 $movkey ($key),$rndkey0
175 shr \$1,$rounds
176 $movkey 16($key),$rndkey1
177 lea 32($key),$key
178 pxor $rndkey0,$inout0
179 pxor $rndkey0,$inout1
180 pxor $rndkey0,$inout2
181 pxor $rndkey0,$inout3
182
183.L${dir}_loop4:
184 aes${dir} $rndkey1,$inout0
185 $movkey ($key),$rndkey0
186 aes${dir} $rndkey1,$inout1
187 dec $rounds
188 aes${dir} $rndkey1,$inout2
189 aes${dir} $rndkey1,$inout3
190 aes${dir} $rndkey0,$inout0
191 $movkey 16($key),$rndkey1
192 aes${dir} $rndkey0,$inout1
193 lea 32($key),$key
194 aes${dir} $rndkey0,$inout2
195 aes${dir} $rndkey0,$inout3
196 jnz .L${dir}_loop4
197
198 aes${dir} $rndkey1,$inout0
199 $movkey ($key),$rndkey0
200 aes${dir} $rndkey1,$inout1
201 aes${dir} $rndkey1,$inout2
202 aes${dir} $rndkey1,$inout3
203 aes${dir}last $rndkey0,$inout0
204 aes${dir}last $rndkey0,$inout1
205 aes${dir}last $rndkey0,$inout2
206 aes${dir}last $rndkey0,$inout3
207 ret
208.size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4
209___
210}
211&aesni_generate3("enc") if ($PREFIX eq "aesni");
212&aesni_generate3("dec");
213&aesni_generate4("enc") if ($PREFIX eq "aesni");
214&aesni_generate4("dec");
215
216if ($PREFIX eq "aesni") {
217# void aesni_ecb_encrypt (const void *in, void *out,
218# size_t length, const AES_KEY *key,
219# int enc);
220$code.=<<___;
221.globl aesni_ecb_encrypt
222.type aesni_ecb_encrypt,\@function,5
223.align 16
224aesni_ecb_encrypt:
225 cmp \$16,$len # check length
226 jb .Lecb_ret
227
228 mov 240($key),$rounds # pull $rounds
229 and \$-16,$len
230 mov $key,$key_ # backup $key
231 test %r8d,%r8d # 5th argument
232 mov $rounds,$rnds_ # backup $rounds
233 jz .Lecb_decrypt
234#--------------------------- ECB ENCRYPT ------------------------------#
235 sub \$0x40,$len
236 jbe .Lecb_enc_tail
237 jmp .Lecb_enc_loop3
238.align 16
239.Lecb_enc_loop3:
240 movups ($inp),$inout0
241 movups 0x10($inp),$inout1
242 movups 0x20($inp),$inout2
243 call _aesni_encrypt3
244 sub \$0x30,$len
245 lea 0x30($inp),$inp
246 lea 0x30($out),$out
247 movups $inout0,-0x30($out)
248 mov $rnds_,$rounds # restore $rounds
249 movups $inout1,-0x20($out)
250 mov $key_,$key # restore $key
251 movups $inout2,-0x10($out)
252 ja .Lecb_enc_loop3
253
254.Lecb_enc_tail:
255 add \$0x40,$len
256 jz .Lecb_ret
257
258 cmp \$0x10,$len
259 movups ($inp),$inout0
260 je .Lecb_enc_one
261 cmp \$0x20,$len
262 movups 0x10($inp),$inout1
263 je .Lecb_enc_two
264 cmp \$0x30,$len
265 movups 0x20($inp),$inout2
266 je .Lecb_enc_three
267 movups 0x30($inp),$inout3
268 call _aesni_encrypt4
269 movups $inout0,($out)
270 movups $inout1,0x10($out)
271 movups $inout2,0x20($out)
272 movups $inout3,0x30($out)
273 jmp .Lecb_ret
274.align 16
275.Lecb_enc_one:
276___
277 &aesni_generate1("enc",$key,$rounds);
278$code.=<<___;
279 movups $inout0,($out)
280 jmp .Lecb_ret
281.align 16
282.Lecb_enc_two:
283 call _aesni_encrypt3
284 movups $inout0,($out)
285 movups $inout1,0x10($out)
286 jmp .Lecb_ret
287.align 16
288.Lecb_enc_three:
289 call _aesni_encrypt3
290 movups $inout0,($out)
291 movups $inout1,0x10($out)
292 movups $inout2,0x20($out)
293 jmp .Lecb_ret
294 #--------------------------- ECB DECRYPT ------------------------------#
295.align 16
296.Lecb_decrypt:
297 sub \$0x40,$len
298 jbe .Lecb_dec_tail
299 jmp .Lecb_dec_loop3
300.align 16
301.Lecb_dec_loop3:
302 movups ($inp),$inout0
303 movups 0x10($inp),$inout1
304 movups 0x20($inp),$inout2
305 call _aesni_decrypt3
306 sub \$0x30,$len
307 lea 0x30($inp),$inp
308 lea 0x30($out),$out
309 movups $inout0,-0x30($out)
310 mov $rnds_,$rounds # restore $rounds
311 movups $inout1,-0x20($out)
312 mov $key_,$key # restore $key
313 movups $inout2,-0x10($out)
314 ja .Lecb_dec_loop3
315
316.Lecb_dec_tail:
317 add \$0x40,$len
318 jz .Lecb_ret
319
320 cmp \$0x10,$len
321 movups ($inp),$inout0
322 je .Lecb_dec_one
323 cmp \$0x20,$len
324 movups 0x10($inp),$inout1
325 je .Lecb_dec_two
326 cmp \$0x30,$len
327 movups 0x20($inp),$inout2
328 je .Lecb_dec_three
329 movups 0x30($inp),$inout3
330 call _aesni_decrypt4
331 movups $inout0,($out)
332 movups $inout1,0x10($out)
333 movups $inout2,0x20($out)
334 movups $inout3,0x30($out)
335 jmp .Lecb_ret
336.align 16
337.Lecb_dec_one:
338___
339 &aesni_generate1("dec",$key,$rounds);
340$code.=<<___;
341 movups $inout0,($out)
342 jmp .Lecb_ret
343.align 16
344.Lecb_dec_two:
345 call _aesni_decrypt3
346 movups $inout0,($out)
347 movups $inout1,0x10($out)
348 jmp .Lecb_ret
349.align 16
350.Lecb_dec_three:
351 call _aesni_decrypt3
352 movups $inout0,($out)
353 movups $inout1,0x10($out)
354 movups $inout2,0x20($out)
355
356.Lecb_ret:
357 ret
358.size aesni_ecb_encrypt,.-aesni_ecb_encrypt
359___
360}
361
362# void $PREFIX_cbc_encrypt (const void *inp, void *out,
363# size_t length, const AES_KEY *key,
364# unsigned char *ivp,const int enc);
365$reserved = $win64?0x40:-0x18; # used in decrypt
366$code.=<<___;
367.globl ${PREFIX}_cbc_encrypt
368.type ${PREFIX}_cbc_encrypt,\@function,6
369.align 16
370${PREFIX}_cbc_encrypt:
371 test $len,$len # check length
372 jz .Lcbc_ret
373
374 mov 240($key),$rnds_ # pull $rounds
375 mov $key,$key_ # backup $key
376 test %r9d,%r9d # 6th argument
377 jz .Lcbc_decrypt
378#--------------------------- CBC ENCRYPT ------------------------------#
379 movups ($ivp),$inout0 # load iv as initial state
380 cmp \$16,$len
381 mov $rnds_,$rounds
382 jb .Lcbc_enc_tail
383 sub \$16,$len
384 jmp .Lcbc_enc_loop
385.align 16
386.Lcbc_enc_loop:
387 movups ($inp),$inout1 # load input
388 lea 16($inp),$inp
389 pxor $inout1,$inout0
390___
391 &aesni_generate1("enc",$key,$rounds);
392$code.=<<___;
393 sub \$16,$len
394 lea 16($out),$out
395 mov $rnds_,$rounds # restore $rounds
396 mov $key_,$key # restore $key
397 movups $inout0,-16($out) # store output
398 jnc .Lcbc_enc_loop
399 add \$16,$len
400 jnz .Lcbc_enc_tail
401 movups $inout0,($ivp)
402 jmp .Lcbc_ret
403
404.Lcbc_enc_tail:
405 mov $len,%rcx # zaps $key
406 xchg $inp,$out # $inp is %rsi and $out is %rdi now
407 .long 0x9066A4F3 # rep movsb
408 mov \$16,%ecx # zero tail
409 sub $len,%rcx
410 xor %eax,%eax
411 .long 0x9066AAF3 # rep stosb
412 lea -16(%rdi),%rdi # rewind $out by 1 block
413 mov $rnds_,$rounds # restore $rounds
414 mov %rdi,%rsi # $inp and $out are the same
415 mov $key_,$key # restore $key
416 xor $len,$len # len=16
417 jmp .Lcbc_enc_loop # one more spin
418 #--------------------------- CBC DECRYPT ------------------------------#
419.align 16
420.Lcbc_decrypt:
421___
422$code.=<<___ if ($win64);
423 lea -0x58(%rsp),%rsp
424 movaps %xmm6,(%rsp)
425 movaps %xmm7,0x10(%rsp)
426 movaps %xmm8,0x20(%rsp)
427 movaps %xmm9,0x30(%rsp)
428.Lcbc_decrypt_body:
429___
430$code.=<<___;
431 movups ($ivp),$iv
432 sub \$0x40,$len
433 mov $rnds_,$rounds
434 jbe .Lcbc_dec_tail
435 jmp .Lcbc_dec_loop3
436.align 16
437.Lcbc_dec_loop3:
438 movups ($inp),$inout0
439 movups 0x10($inp),$inout1
440 movups 0x20($inp),$inout2
441 movaps $inout0,$in0
442 movaps $inout1,$in1
443 movaps $inout2,$in2
444 call _aesni_decrypt3
445 sub \$0x30,$len
446 lea 0x30($inp),$inp
447 lea 0x30($out),$out
448 pxor $iv,$inout0
449 pxor $in0,$inout1
450 movaps $in2,$iv
451 pxor $in1,$inout2
452 movups $inout0,-0x30($out)
453 mov $rnds_,$rounds # restore $rounds
454 movups $inout1,-0x20($out)
455 mov $key_,$key # restore $key
456 movups $inout2,-0x10($out)
457 ja .Lcbc_dec_loop3
458
459.Lcbc_dec_tail:
460 add \$0x40,$len
461 movups $iv,($ivp)
462 jz .Lcbc_dec_ret
463
464 movups ($inp),$inout0
465 cmp \$0x10,$len
466 movaps $inout0,$in0
467 jbe .Lcbc_dec_one
468 movups 0x10($inp),$inout1
469 cmp \$0x20,$len
470 movaps $inout1,$in1
471 jbe .Lcbc_dec_two
472 movups 0x20($inp),$inout2
473 cmp \$0x30,$len
474 movaps $inout2,$in2
475 jbe .Lcbc_dec_three
476 movups 0x30($inp),$inout3
477 call _aesni_decrypt4
478 pxor $iv,$inout0
479 movups 0x30($inp),$iv
480 pxor $in0,$inout1
481 movups $inout0,($out)
482 pxor $in1,$inout2
483 movups $inout1,0x10($out)
484 pxor $in2,$inout3
485 movups $inout2,0x20($out)
486 movaps $inout3,$inout0
487 lea 0x30($out),$out
488 jmp .Lcbc_dec_tail_collected
489.align 16
490.Lcbc_dec_one:
491___
492 &aesni_generate1("dec",$key,$rounds);
493$code.=<<___;
494 pxor $iv,$inout0
495 movaps $in0,$iv
496 jmp .Lcbc_dec_tail_collected
497.align 16
498.Lcbc_dec_two:
499 call _aesni_decrypt3
500 pxor $iv,$inout0
501 pxor $in0,$inout1
502 movups $inout0,($out)
503 movaps $in1,$iv
504 movaps $inout1,$inout0
505 lea 0x10($out),$out
506 jmp .Lcbc_dec_tail_collected
507.align 16
508.Lcbc_dec_three:
509 call _aesni_decrypt3
510 pxor $iv,$inout0
511 pxor $in0,$inout1
512 movups $inout0,($out)
513 pxor $in1,$inout2
514 movups $inout1,0x10($out)
515 movaps $in2,$iv
516 movaps $inout2,$inout0
517 lea 0x20($out),$out
518 jmp .Lcbc_dec_tail_collected
519.align 16
520.Lcbc_dec_tail_collected:
521 and \$15,$len
522 movups $iv,($ivp)
523 jnz .Lcbc_dec_tail_partial
524 movups $inout0,($out)
525 jmp .Lcbc_dec_ret
526.Lcbc_dec_tail_partial:
527 movaps $inout0,$reserved(%rsp)
528 mov $out,%rdi
529 mov $len,%rcx
530 lea $reserved(%rsp),%rsi
531 .long 0x9066A4F3 # rep movsb
532
533.Lcbc_dec_ret:
534___
535$code.=<<___ if ($win64);
536 movaps (%rsp),%xmm6
537 movaps 0x10(%rsp),%xmm7
538 movaps 0x20(%rsp),%xmm8
539 movaps 0x30(%rsp),%xmm9
540 lea 0x58(%rsp),%rsp
541___
542$code.=<<___;
543.Lcbc_ret:
544 ret
545.size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt
546___
547
548# int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey,
549# int bits, AES_KEY *key)
550{ my ($inp,$bits,$key) = @_4args;
551 $bits =~ s/%r/%e/;
552
553$code.=<<___;
554.globl ${PREFIX}_set_decrypt_key
555.type ${PREFIX}_set_decrypt_key,\@abi-omnipotent
556.align 16
557${PREFIX}_set_decrypt_key:
558 .byte 0x48,0x83,0xEC,0x08 # sub rsp,8
559 call _aesni_set_encrypt_key
560 shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key
561 test %eax,%eax
562 jnz .Ldec_key_ret
563 lea 16($key,$bits),$inp # points at the end of key schedule
564
565 $movkey ($key),%xmm0 # just swap
566 $movkey ($inp),%xmm1
567 $movkey %xmm0,($inp)
568 $movkey %xmm1,($key)
569 lea 16($key),$key
570 lea -16($inp),$inp
571
572.Ldec_key_inverse:
573 $movkey ($key),%xmm0 # swap and inverse
574 $movkey ($inp),%xmm1
575 aesimc %xmm0,%xmm0
576 aesimc %xmm1,%xmm1
577 lea 16($key),$key
578 lea -16($inp),$inp
579 cmp $key,$inp
580 $movkey %xmm0,16($inp)
581 $movkey %xmm1,-16($key)
582 ja .Ldec_key_inverse
583
584 $movkey ($key),%xmm0 # inverse middle
585 aesimc %xmm0,%xmm0
586 $movkey %xmm0,($inp)
587.Ldec_key_ret:
588 add \$8,%rsp
589 ret
590.LSEH_end_set_decrypt_key:
591.size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key
592___
593
594# This is based on submission by
595#
596# Huang Ying <ying.huang@intel.com>
597# Vinodh Gopal <vinodh.gopal@intel.com>
598# Kahraman Akdemir
599#
600# Agressively optimized in respect to aeskeygenassist's critical path
601# and is contained in %xmm0-5 to meet Win64 ABI requirement.
602#
603$code.=<<___;
604.globl ${PREFIX}_set_encrypt_key
605.type ${PREFIX}_set_encrypt_key,\@abi-omnipotent
606.align 16
607${PREFIX}_set_encrypt_key:
608_aesni_set_encrypt_key:
609 .byte 0x48,0x83,0xEC,0x08 # sub rsp,8
610 test $inp,$inp
611 mov \$-1,%rax
612 jz .Lenc_key_ret
613 test $key,$key
614 jz .Lenc_key_ret
615
616 movups ($inp),%xmm0 # pull first 128 bits of *userKey
617 pxor %xmm4,%xmm4 # low dword of xmm4 is assumed 0
618 lea 16($key),%rax
619 cmp \$256,$bits
620 je .L14rounds
621 cmp \$192,$bits
622 je .L12rounds
623 cmp \$128,$bits
624 jne .Lbad_keybits
625
626.L10rounds:
627 mov \$9,$bits # 10 rounds for 128-bit key
628 $movkey %xmm0,($key) # round 0
629 aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1
630 call .Lkey_expansion_128_cold
631 aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2
632 call .Lkey_expansion_128
633 aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3
634 call .Lkey_expansion_128
635 aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4
636 call .Lkey_expansion_128
637 aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5
638 call .Lkey_expansion_128
639 aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6
640 call .Lkey_expansion_128
641 aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7
642 call .Lkey_expansion_128
643 aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8
644 call .Lkey_expansion_128
645 aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9
646 call .Lkey_expansion_128
647 aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10
648 call .Lkey_expansion_128
649 $movkey %xmm0,(%rax)
650 mov $bits,80(%rax) # 240(%rdx)
651 xor %eax,%eax
652 jmp .Lenc_key_ret
653
654.align 16
655.L12rounds:
656 movq 16($inp),%xmm2 # remaining 1/3 of *userKey
657 mov \$11,$bits # 12 rounds for 192
658 $movkey %xmm0,($key) # round 0
659 aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2
660 call .Lkey_expansion_192a_cold
661 aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3
662 call .Lkey_expansion_192b
663 aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5
664 call .Lkey_expansion_192a
665 aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6
666 call .Lkey_expansion_192b
667 aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8
668 call .Lkey_expansion_192a
669 aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9
670 call .Lkey_expansion_192b
671 aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11
672 call .Lkey_expansion_192a
673 aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12
674 call .Lkey_expansion_192b
675 $movkey %xmm0,(%rax)
676 mov $bits,48(%rax) # 240(%rdx)
677 xor %rax, %rax
678 jmp .Lenc_key_ret
679
680.align 16
681.L14rounds:
682 movups 16($inp),%xmm2 # remaning half of *userKey
683 mov \$13,$bits # 14 rounds for 256
684 lea 16(%rax),%rax
685 $movkey %xmm0,($key) # round 0
686 $movkey %xmm2,16($key) # round 1
687 aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2
688 call .Lkey_expansion_256a_cold
689 aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3
690 call .Lkey_expansion_256b
691 aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4
692 call .Lkey_expansion_256a
693 aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5
694 call .Lkey_expansion_256b
695 aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6
696 call .Lkey_expansion_256a
697 aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7
698 call .Lkey_expansion_256b
699 aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8
700 call .Lkey_expansion_256a
701 aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9
702 call .Lkey_expansion_256b
703 aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10
704 call .Lkey_expansion_256a
705 aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11
706 call .Lkey_expansion_256b
707 aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12
708 call .Lkey_expansion_256a
709 aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13
710 call .Lkey_expansion_256b
711 aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14
712 call .Lkey_expansion_256a
713 $movkey %xmm0,(%rax)
714 mov $bits,16(%rax) # 240(%rdx)
715 xor %rax,%rax
716 jmp .Lenc_key_ret
717
718.align 16
719.Lbad_keybits:
720 mov \$-2,%rax
721.Lenc_key_ret:
722 add \$8,%rsp
723 ret
724.LSEH_end_set_encrypt_key:
725
726.align 16
727.Lkey_expansion_128:
728 $movkey %xmm0,(%rax)
729 lea 16(%rax),%rax
730.Lkey_expansion_128_cold:
731 shufps \$0b00010000,%xmm0,%xmm4
732 pxor %xmm4, %xmm0
733 shufps \$0b10001100,%xmm0,%xmm4
734 pxor %xmm4, %xmm0
735 pshufd \$0b11111111,%xmm1,%xmm1 # critical path
736 pxor %xmm1,%xmm0
737 ret
738
739.align 16
740.Lkey_expansion_192a:
741 $movkey %xmm0,(%rax)
742 lea 16(%rax),%rax
743.Lkey_expansion_192a_cold:
744 movaps %xmm2, %xmm5
745.Lkey_expansion_192b_warm:
746 shufps \$0b00010000,%xmm0,%xmm4
747 movaps %xmm2,%xmm3
748 pxor %xmm4,%xmm0
749 shufps \$0b10001100,%xmm0,%xmm4
750 pslldq \$4,%xmm3
751 pxor %xmm4,%xmm0
752 pshufd \$0b01010101,%xmm1,%xmm1 # critical path
753 pxor %xmm3,%xmm2
754 pxor %xmm1,%xmm0
755 pshufd \$0b11111111,%xmm0,%xmm3
756 pxor %xmm3,%xmm2
757 ret
758
759.align 16
760.Lkey_expansion_192b:
761 movaps %xmm0,%xmm3
762 shufps \$0b01000100,%xmm0,%xmm5
763 $movkey %xmm5,(%rax)
764 shufps \$0b01001110,%xmm2,%xmm3
765 $movkey %xmm3,16(%rax)
766 lea 32(%rax),%rax
767 jmp .Lkey_expansion_192b_warm
768
769.align 16
770.Lkey_expansion_256a:
771 $movkey %xmm2,(%rax)
772 lea 16(%rax),%rax
773.Lkey_expansion_256a_cold:
774 shufps \$0b00010000,%xmm0,%xmm4
775 pxor %xmm4,%xmm0
776 shufps \$0b10001100,%xmm0,%xmm4
777 pxor %xmm4,%xmm0
778 pshufd \$0b11111111,%xmm1,%xmm1 # critical path
779 pxor %xmm1,%xmm0
780 ret
781
782.align 16
783.Lkey_expansion_256b:
784 $movkey %xmm0,(%rax)
785 lea 16(%rax),%rax
786
787 shufps \$0b00010000,%xmm2,%xmm4
788 pxor %xmm4,%xmm2
789 shufps \$0b10001100,%xmm2,%xmm4
790 pxor %xmm4,%xmm2
791 pshufd \$0b10101010,%xmm1,%xmm1 # critical path
792 pxor %xmm1,%xmm2
793 ret
794.size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key
795___
796}
797
798$code.=<<___;
799.asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>"
800.align 64
801___
802
803# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
804# CONTEXT *context,DISPATCHER_CONTEXT *disp)
805if ($win64) {
806$rec="%rcx";
807$frame="%rdx";
808$context="%r8";
809$disp="%r9";
810
811$code.=<<___;
812.extern __imp_RtlVirtualUnwind
813.type cbc_se_handler,\@abi-omnipotent
814.align 16
815cbc_se_handler:
816 push %rsi
817 push %rdi
818 push %rbx
819 push %rbp
820 push %r12
821 push %r13
822 push %r14
823 push %r15
824 pushfq
825 sub \$64,%rsp
826
827 mov 152($context),%rax # pull context->Rsp
828 mov 248($context),%rbx # pull context->Rip
829
830 lea .Lcbc_decrypt(%rip),%r10
831 cmp %r10,%rbx # context->Rip<"prologue" label
832 jb .Lin_prologue
833
834 lea .Lcbc_decrypt_body(%rip),%r10
835 cmp %r10,%rbx # context->Rip<cbc_decrypt_body
836 jb .Lrestore_rax
837
838 lea .Lcbc_ret(%rip),%r10
839 cmp %r10,%rbx # context->Rip>="epilogue" label
840 jae .Lin_prologue
841
842 lea 0(%rax),%rsi # top of stack
843 lea 512($context),%rdi # &context.Xmm6
844 mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax)
845 .long 0xa548f3fc # cld; rep movsq
846 lea 0x58(%rax),%rax # adjust stack pointer
847 jmp .Lin_prologue
848
849.Lrestore_rax:
850 mov 120($context),%rax
851.Lin_prologue:
852 mov 8(%rax),%rdi
853 mov 16(%rax),%rsi
854 mov %rax,152($context) # restore context->Rsp
855 mov %rsi,168($context) # restore context->Rsi
856 mov %rdi,176($context) # restore context->Rdi
857
858 jmp .Lcommon_seh_exit
859.size cbc_se_handler,.-cbc_se_handler
860
861.type ecb_se_handler,\@abi-omnipotent
862.align 16
863ecb_se_handler:
864 push %rsi
865 push %rdi
866 push %rbx
867 push %rbp
868 push %r12
869 push %r13
870 push %r14
871 push %r15
872 pushfq
873 sub \$64,%rsp
874
875 mov 152($context),%rax # pull context->Rsp
876 mov 8(%rax),%rdi
877 mov 16(%rax),%rsi
878 mov %rsi,168($context) # restore context->Rsi
879 mov %rdi,176($context) # restore context->Rdi
880
881.Lcommon_seh_exit:
882
883 mov 40($disp),%rdi # disp->ContextRecord
884 mov $context,%rsi # context
885 mov \$154,%ecx # sizeof(CONTEXT)
886 .long 0xa548f3fc # cld; rep movsq
887
888 mov $disp,%rsi
889 xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
890 mov 8(%rsi),%rdx # arg2, disp->ImageBase
891 mov 0(%rsi),%r8 # arg3, disp->ControlPc
892 mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
893 mov 40(%rsi),%r10 # disp->ContextRecord
894 lea 56(%rsi),%r11 # &disp->HandlerData
895 lea 24(%rsi),%r12 # &disp->EstablisherFrame
896 mov %r10,32(%rsp) # arg5
897 mov %r11,40(%rsp) # arg6
898 mov %r12,48(%rsp) # arg7
899 mov %rcx,56(%rsp) # arg8, (NULL)
900 call *__imp_RtlVirtualUnwind(%rip)
901
902 mov \$1,%eax # ExceptionContinueSearch
903 add \$64,%rsp
904 popfq
905 pop %r15
906 pop %r14
907 pop %r13
908 pop %r12
909 pop %rbp
910 pop %rbx
911 pop %rdi
912 pop %rsi
913 ret
914.size cbc_se_handler,.-cbc_se_handler
915
916.section .pdata
917.align 4
918 .rva .LSEH_begin_${PREFIX}_ecb_encrypt
919 .rva .LSEH_end_${PREFIX}_ecb_encrypt
920 .rva .LSEH_info_ecb
921
922 .rva .LSEH_begin_${PREFIX}_cbc_encrypt
923 .rva .LSEH_end_${PREFIX}_cbc_encrypt
924 .rva .LSEH_info_cbc
925
926 .rva ${PREFIX}_set_decrypt_key
927 .rva .LSEH_end_set_decrypt_key
928 .rva .LSEH_info_key
929
930 .rva ${PREFIX}_set_encrypt_key
931 .rva .LSEH_end_set_encrypt_key
932 .rva .LSEH_info_key
933.section .xdata
934.align 8
935.LSEH_info_ecb:
936 .byte 9,0,0,0
937 .rva ecb_se_handler
938.LSEH_info_cbc:
939 .byte 9,0,0,0
940 .rva cbc_se_handler
941.LSEH_info_key:
942 .byte 0x01,0x04,0x01,0x00
943 .byte 0x04,0x02,0x00,0x00
944___
945}
946
947sub rex {
948 local *opcode=shift;
949 my ($dst,$src)=@_;
950
951 if ($dst>=8 || $src>=8) {
952 $rex=0x40;
953 $rex|=0x04 if($dst>=8);
954 $rex|=0x01 if($src>=8);
955 push @opcode,$rex;
956 }
957}
958
959sub aesni {
960 my $line=shift;
961 my @opcode=(0x66);
962
963 if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
964 rex(\@opcode,$4,$3);
965 push @opcode,0x0f,0x3a,0xdf;
966 push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M
967 my $c=$2;
968 push @opcode,$c=~/^0/?oct($c):$c;
969 return ".byte\t".join(',',@opcode);
970 }
971 elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) {
972 my %opcodelet = (
973 "aesimc" => 0xdb,
974 "aesenc" => 0xdc, "aesenclast" => 0xdd,
975 "aesdec" => 0xde, "aesdeclast" => 0xdf
976 );
977 return undef if (!defined($opcodelet{$1}));
978 rex(\@opcode,$3,$2);
979 push @opcode,0x0f,0x38,$opcodelet{$1};
980 push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
981 return ".byte\t".join(',',@opcode);
982 }
983 return $line;
984}
985
986$code =~ s/\`([^\`]*)\`/eval($1)/gem;
987$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem;
988
989print $code;
990
991close STDOUT;
992
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-20 11:13:24 +0000