1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
|
#define BORINGSSL_PREFIX CCryptoBoringSSL
#if defined(__aarch64__) && defined(__linux__)
// This file is generated from a similarly-named Perl script in the BoringSSL
// source tree. Do not edit by hand.
#include <CCryptoBoringSSL_asm_base.h>
#if !defined(OPENSSL_NO_ASM) && defined(OPENSSL_AARCH64) && defined(__ELF__)
#include <CCryptoBoringSSL_arm_arch.h>
#if __ARM_MAX_ARCH__>=7
.text
.arch armv8-a+crypto
.section .rodata
.align 5
.Lrcon:
.long 0x01,0x01,0x01,0x01
.long 0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d // rotate-n-splat
.long 0x1b,0x1b,0x1b,0x1b
.text
.globl aes_hw_set_encrypt_key
.hidden aes_hw_set_encrypt_key
.type aes_hw_set_encrypt_key,%function
.align 5
aes_hw_set_encrypt_key:
.Lenc_key:
// Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later.
AARCH64_VALID_CALL_TARGET
stp x29,x30,[sp,#-16]!
add x29,sp,#0
mov x3,#-1
cmp x0,#0
b.eq .Lenc_key_abort
cmp x2,#0
b.eq .Lenc_key_abort
mov x3,#-2
cmp w1,#128
b.lt .Lenc_key_abort
cmp w1,#256
b.gt .Lenc_key_abort
tst w1,#0x3f
b.ne .Lenc_key_abort
adrp x3,.Lrcon
add x3,x3,:lo12:.Lrcon
cmp w1,#192
eor v0.16b,v0.16b,v0.16b
ld1 {v3.16b},[x0],#16
mov w1,#8 // reuse w1
ld1 {v1.4s,v2.4s},[x3],#32
b.lt .Loop128
b.eq .L192
b .L256
.align 4
.Loop128:
tbl v6.16b,{v3.16b},v2.16b
ext v5.16b,v0.16b,v3.16b,#12
st1 {v3.4s},[x2],#16
aese v6.16b,v0.16b
subs w1,w1,#1
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v6.16b,v6.16b,v1.16b
eor v3.16b,v3.16b,v5.16b
shl v1.16b,v1.16b,#1
eor v3.16b,v3.16b,v6.16b
b.ne .Loop128
ld1 {v1.4s},[x3]
tbl v6.16b,{v3.16b},v2.16b
ext v5.16b,v0.16b,v3.16b,#12
st1 {v3.4s},[x2],#16
aese v6.16b,v0.16b
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v6.16b,v6.16b,v1.16b
eor v3.16b,v3.16b,v5.16b
shl v1.16b,v1.16b,#1
eor v3.16b,v3.16b,v6.16b
tbl v6.16b,{v3.16b},v2.16b
ext v5.16b,v0.16b,v3.16b,#12
st1 {v3.4s},[x2],#16
aese v6.16b,v0.16b
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v6.16b,v6.16b,v1.16b
eor v3.16b,v3.16b,v5.16b
eor v3.16b,v3.16b,v6.16b
st1 {v3.4s},[x2]
add x2,x2,#0x50
mov w12,#10
b .Ldone
.align 4
.L192:
ld1 {v4.8b},[x0],#8
movi v6.16b,#8 // borrow v6.16b
st1 {v3.4s},[x2],#16
sub v2.16b,v2.16b,v6.16b // adjust the mask
.Loop192:
tbl v6.16b,{v4.16b},v2.16b
ext v5.16b,v0.16b,v3.16b,#12
st1 {v4.8b},[x2],#8
aese v6.16b,v0.16b
subs w1,w1,#1
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v3.16b,v3.16b,v5.16b
dup v5.4s,v3.s[3]
eor v5.16b,v5.16b,v4.16b
eor v6.16b,v6.16b,v1.16b
ext v4.16b,v0.16b,v4.16b,#12
shl v1.16b,v1.16b,#1
eor v4.16b,v4.16b,v5.16b
eor v3.16b,v3.16b,v6.16b
eor v4.16b,v4.16b,v6.16b
st1 {v3.4s},[x2],#16
b.ne .Loop192
mov w12,#12
add x2,x2,#0x20
b .Ldone
.align 4
.L256:
ld1 {v4.16b},[x0]
mov w1,#7
mov w12,#14
st1 {v3.4s},[x2],#16
.Loop256:
tbl v6.16b,{v4.16b},v2.16b
ext v5.16b,v0.16b,v3.16b,#12
st1 {v4.4s},[x2],#16
aese v6.16b,v0.16b
subs w1,w1,#1
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v3.16b,v3.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v6.16b,v6.16b,v1.16b
eor v3.16b,v3.16b,v5.16b
shl v1.16b,v1.16b,#1
eor v3.16b,v3.16b,v6.16b
st1 {v3.4s},[x2],#16
b.eq .Ldone
dup v6.4s,v3.s[3] // just splat
ext v5.16b,v0.16b,v4.16b,#12
aese v6.16b,v0.16b
eor v4.16b,v4.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v4.16b,v4.16b,v5.16b
ext v5.16b,v0.16b,v5.16b,#12
eor v4.16b,v4.16b,v5.16b
eor v4.16b,v4.16b,v6.16b
b .Loop256
.Ldone:
str w12,[x2]
mov x3,#0
.Lenc_key_abort:
mov x0,x3 // return value
ldr x29,[sp],#16
ret
.size aes_hw_set_encrypt_key,.-aes_hw_set_encrypt_key
.globl aes_hw_set_decrypt_key
.hidden aes_hw_set_decrypt_key
.type aes_hw_set_decrypt_key,%function
.align 5
aes_hw_set_decrypt_key:
AARCH64_SIGN_LINK_REGISTER
stp x29,x30,[sp,#-16]!
add x29,sp,#0
bl .Lenc_key
cmp x0,#0
b.ne .Ldec_key_abort
sub x2,x2,#240 // restore original x2
mov x4,#-16
add x0,x2,x12,lsl#4 // end of key schedule
ld1 {v0.4s},[x2]
ld1 {v1.4s},[x0]
st1 {v0.4s},[x0],x4
st1 {v1.4s},[x2],#16
.Loop_imc:
ld1 {v0.4s},[x2]
ld1 {v1.4s},[x0]
aesimc v0.16b,v0.16b
aesimc v1.16b,v1.16b
st1 {v0.4s},[x0],x4
st1 {v1.4s},[x2],#16
cmp x0,x2
b.hi .Loop_imc
ld1 {v0.4s},[x2]
aesimc v0.16b,v0.16b
st1 {v0.4s},[x0]
eor x0,x0,x0 // return value
.Ldec_key_abort:
ldp x29,x30,[sp],#16
AARCH64_VALIDATE_LINK_REGISTER
ret
.size aes_hw_set_decrypt_key,.-aes_hw_set_decrypt_key
.globl aes_hw_encrypt
.hidden aes_hw_encrypt
.type aes_hw_encrypt,%function
.align 5
aes_hw_encrypt:
AARCH64_VALID_CALL_TARGET
ldr w3,[x2,#240]
ld1 {v0.4s},[x2],#16
ld1 {v2.16b},[x0]
sub w3,w3,#2
ld1 {v1.4s},[x2],#16
.Loop_enc:
aese v2.16b,v0.16b
aesmc v2.16b,v2.16b
ld1 {v0.4s},[x2],#16
subs w3,w3,#2
aese v2.16b,v1.16b
aesmc v2.16b,v2.16b
ld1 {v1.4s},[x2],#16
b.gt .Loop_enc
aese v2.16b,v0.16b
aesmc v2.16b,v2.16b
ld1 {v0.4s},[x2]
aese v2.16b,v1.16b
eor v2.16b,v2.16b,v0.16b
st1 {v2.16b},[x1]
ret
.size aes_hw_encrypt,.-aes_hw_encrypt
.globl aes_hw_decrypt
.hidden aes_hw_decrypt
.type aes_hw_decrypt,%function
.align 5
aes_hw_decrypt:
AARCH64_VALID_CALL_TARGET
ldr w3,[x2,#240]
ld1 {v0.4s},[x2],#16
ld1 {v2.16b},[x0]
sub w3,w3,#2
ld1 {v1.4s},[x2],#16
.Loop_dec:
aesd v2.16b,v0.16b
aesimc v2.16b,v2.16b
ld1 {v0.4s},[x2],#16
subs w3,w3,#2
aesd v2.16b,v1.16b
aesimc v2.16b,v2.16b
ld1 {v1.4s},[x2],#16
b.gt .Loop_dec
aesd v2.16b,v0.16b
aesimc v2.16b,v2.16b
ld1 {v0.4s},[x2]
aesd v2.16b,v1.16b
eor v2.16b,v2.16b,v0.16b
st1 {v2.16b},[x1]
ret
.size aes_hw_decrypt,.-aes_hw_decrypt
.globl aes_hw_cbc_encrypt
.hidden aes_hw_cbc_encrypt
.type aes_hw_cbc_encrypt,%function
.align 5
aes_hw_cbc_encrypt:
// Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later.
AARCH64_VALID_CALL_TARGET
stp x29,x30,[sp,#-16]!
add x29,sp,#0
subs x2,x2,#16
mov x8,#16
b.lo .Lcbc_abort
csel x8,xzr,x8,eq
cmp w5,#0 // en- or decrypting?
ldr w5,[x3,#240]
and x2,x2,#-16
ld1 {v6.16b},[x4]
ld1 {v0.16b},[x0],x8
ld1 {v16.4s,v17.4s},[x3] // load key schedule...
sub w5,w5,#6
add x7,x3,x5,lsl#4 // pointer to last 7 round keys
sub w5,w5,#2
ld1 {v18.4s,v19.4s},[x7],#32
ld1 {v20.4s,v21.4s},[x7],#32
ld1 {v22.4s,v23.4s},[x7],#32
ld1 {v7.4s},[x7]
add x7,x3,#32
mov w6,w5
b.eq .Lcbc_dec
cmp w5,#2
eor v0.16b,v0.16b,v6.16b
eor v5.16b,v16.16b,v7.16b
b.eq .Lcbc_enc128
ld1 {v2.4s,v3.4s},[x7]
add x7,x3,#16
add x6,x3,#16*4
add x12,x3,#16*5
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
add x14,x3,#16*6
add x3,x3,#16*7
b .Lenter_cbc_enc
.align 4
.Loop_cbc_enc:
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
st1 {v6.16b},[x1],#16
.Lenter_cbc_enc:
aese v0.16b,v17.16b
aesmc v0.16b,v0.16b
aese v0.16b,v2.16b
aesmc v0.16b,v0.16b
ld1 {v16.4s},[x6]
cmp w5,#4
aese v0.16b,v3.16b
aesmc v0.16b,v0.16b
ld1 {v17.4s},[x12]
b.eq .Lcbc_enc192
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
ld1 {v16.4s},[x14]
aese v0.16b,v17.16b
aesmc v0.16b,v0.16b
ld1 {v17.4s},[x3]
nop
.Lcbc_enc192:
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
subs x2,x2,#16
aese v0.16b,v17.16b
aesmc v0.16b,v0.16b
csel x8,xzr,x8,eq
aese v0.16b,v18.16b
aesmc v0.16b,v0.16b
aese v0.16b,v19.16b
aesmc v0.16b,v0.16b
ld1 {v16.16b},[x0],x8
aese v0.16b,v20.16b
aesmc v0.16b,v0.16b
eor v16.16b,v16.16b,v5.16b
aese v0.16b,v21.16b
aesmc v0.16b,v0.16b
ld1 {v17.4s},[x7] // re-pre-load rndkey[1]
aese v0.16b,v22.16b
aesmc v0.16b,v0.16b
aese v0.16b,v23.16b
eor v6.16b,v0.16b,v7.16b
b.hs .Loop_cbc_enc
st1 {v6.16b},[x1],#16
b .Lcbc_done
.align 5
.Lcbc_enc128:
ld1 {v2.4s,v3.4s},[x7]
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
b .Lenter_cbc_enc128
.Loop_cbc_enc128:
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
st1 {v6.16b},[x1],#16
.Lenter_cbc_enc128:
aese v0.16b,v17.16b
aesmc v0.16b,v0.16b
subs x2,x2,#16
aese v0.16b,v2.16b
aesmc v0.16b,v0.16b
csel x8,xzr,x8,eq
aese v0.16b,v3.16b
aesmc v0.16b,v0.16b
aese v0.16b,v18.16b
aesmc v0.16b,v0.16b
aese v0.16b,v19.16b
aesmc v0.16b,v0.16b
ld1 {v16.16b},[x0],x8
aese v0.16b,v20.16b
aesmc v0.16b,v0.16b
aese v0.16b,v21.16b
aesmc v0.16b,v0.16b
aese v0.16b,v22.16b
aesmc v0.16b,v0.16b
eor v16.16b,v16.16b,v5.16b
aese v0.16b,v23.16b
eor v6.16b,v0.16b,v7.16b
b.hs .Loop_cbc_enc128
st1 {v6.16b},[x1],#16
b .Lcbc_done
.align 5
.Lcbc_dec:
ld1 {v18.16b},[x0],#16
subs x2,x2,#32 // bias
add w6,w5,#2
orr v3.16b,v0.16b,v0.16b
orr v1.16b,v0.16b,v0.16b
orr v19.16b,v18.16b,v18.16b
b.lo .Lcbc_dec_tail
orr v1.16b,v18.16b,v18.16b
ld1 {v18.16b},[x0],#16
orr v2.16b,v0.16b,v0.16b
orr v3.16b,v1.16b,v1.16b
orr v19.16b,v18.16b,v18.16b
.Loop3x_cbc_dec:
aesd v0.16b,v16.16b
aesimc v0.16b,v0.16b
aesd v1.16b,v16.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v16.16b
aesimc v18.16b,v18.16b
ld1 {v16.4s},[x7],#16
subs w6,w6,#2
aesd v0.16b,v17.16b
aesimc v0.16b,v0.16b
aesd v1.16b,v17.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v17.16b
aesimc v18.16b,v18.16b
ld1 {v17.4s},[x7],#16
b.gt .Loop3x_cbc_dec
aesd v0.16b,v16.16b
aesimc v0.16b,v0.16b
aesd v1.16b,v16.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v16.16b
aesimc v18.16b,v18.16b
eor v4.16b,v6.16b,v7.16b
subs x2,x2,#0x30
eor v5.16b,v2.16b,v7.16b
csel x6,x2,x6,lo // x6, w6, is zero at this point
aesd v0.16b,v17.16b
aesimc v0.16b,v0.16b
aesd v1.16b,v17.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v17.16b
aesimc v18.16b,v18.16b
eor v17.16b,v3.16b,v7.16b
add x0,x0,x6 // x0 is adjusted in such way that
// at exit from the loop v1.16b-v18.16b
// are loaded with last "words"
orr v6.16b,v19.16b,v19.16b
mov x7,x3
aesd v0.16b,v20.16b
aesimc v0.16b,v0.16b
aesd v1.16b,v20.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v20.16b
aesimc v18.16b,v18.16b
ld1 {v2.16b},[x0],#16
aesd v0.16b,v21.16b
aesimc v0.16b,v0.16b
aesd v1.16b,v21.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v21.16b
aesimc v18.16b,v18.16b
ld1 {v3.16b},[x0],#16
aesd v0.16b,v22.16b
aesimc v0.16b,v0.16b
aesd v1.16b,v22.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v22.16b
aesimc v18.16b,v18.16b
ld1 {v19.16b},[x0],#16
aesd v0.16b,v23.16b
aesd v1.16b,v23.16b
aesd v18.16b,v23.16b
ld1 {v16.4s},[x7],#16 // re-pre-load rndkey[0]
add w6,w5,#2
eor v4.16b,v4.16b,v0.16b
eor v5.16b,v5.16b,v1.16b
eor v18.16b,v18.16b,v17.16b
ld1 {v17.4s},[x7],#16 // re-pre-load rndkey[1]
st1 {v4.16b},[x1],#16
orr v0.16b,v2.16b,v2.16b
st1 {v5.16b},[x1],#16
orr v1.16b,v3.16b,v3.16b
st1 {v18.16b},[x1],#16
orr v18.16b,v19.16b,v19.16b
b.hs .Loop3x_cbc_dec
cmn x2,#0x30
b.eq .Lcbc_done
nop
.Lcbc_dec_tail:
aesd v1.16b,v16.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v16.16b
aesimc v18.16b,v18.16b
ld1 {v16.4s},[x7],#16
subs w6,w6,#2
aesd v1.16b,v17.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v17.16b
aesimc v18.16b,v18.16b
ld1 {v17.4s},[x7],#16
b.gt .Lcbc_dec_tail
aesd v1.16b,v16.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v16.16b
aesimc v18.16b,v18.16b
aesd v1.16b,v17.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v17.16b
aesimc v18.16b,v18.16b
aesd v1.16b,v20.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v20.16b
aesimc v18.16b,v18.16b
cmn x2,#0x20
aesd v1.16b,v21.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v21.16b
aesimc v18.16b,v18.16b
eor v5.16b,v6.16b,v7.16b
aesd v1.16b,v22.16b
aesimc v1.16b,v1.16b
aesd v18.16b,v22.16b
aesimc v18.16b,v18.16b
eor v17.16b,v3.16b,v7.16b
aesd v1.16b,v23.16b
aesd v18.16b,v23.16b
b.eq .Lcbc_dec_one
eor v5.16b,v5.16b,v1.16b
eor v17.16b,v17.16b,v18.16b
orr v6.16b,v19.16b,v19.16b
st1 {v5.16b},[x1],#16
st1 {v17.16b},[x1],#16
b .Lcbc_done
.Lcbc_dec_one:
eor v5.16b,v5.16b,v18.16b
orr v6.16b,v19.16b,v19.16b
st1 {v5.16b},[x1],#16
.Lcbc_done:
st1 {v6.16b},[x4]
.Lcbc_abort:
ldr x29,[sp],#16
ret
.size aes_hw_cbc_encrypt,.-aes_hw_cbc_encrypt
.globl aes_hw_ctr32_encrypt_blocks
.hidden aes_hw_ctr32_encrypt_blocks
.type aes_hw_ctr32_encrypt_blocks,%function
.align 5
aes_hw_ctr32_encrypt_blocks:
// Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later.
AARCH64_VALID_CALL_TARGET
stp x29,x30,[sp,#-16]!
add x29,sp,#0
ldr w5,[x3,#240]
ldr w8, [x4, #12]
ld1 {v0.4s},[x4]
ld1 {v16.4s,v17.4s},[x3] // load key schedule...
sub w5,w5,#4
mov x12,#16
cmp x2,#2
add x7,x3,x5,lsl#4 // pointer to last 5 round keys
sub w5,w5,#2
ld1 {v20.4s,v21.4s},[x7],#32
ld1 {v22.4s,v23.4s},[x7],#32
ld1 {v7.4s},[x7]
add x7,x3,#32
mov w6,w5
csel x12,xzr,x12,lo
// ARM Cortex-A57 and Cortex-A72 cores running in 32-bit mode are
// affected by silicon errata #1742098 [0] and #1655431 [1],
// respectively, where the second instruction of an aese/aesmc
// instruction pair may execute twice if an interrupt is taken right
// after the first instruction consumes an input register of which a
// single 32-bit lane has been updated the last time it was modified.
//
// This function uses a counter in one 32-bit lane. The vmov lines
// could write to v1.16b and v18.16b directly, but that trips this bugs.
// We write to v6.16b and copy to the final register as a workaround.
//
// [0] ARM-EPM-049219 v23 Cortex-A57 MPCore Software Developers Errata Notice
// [1] ARM-EPM-012079 v11.0 Cortex-A72 MPCore Software Developers Errata Notice
#ifndef __AARCH64EB__
rev w8, w8
#endif
add w10, w8, #1
orr v6.16b,v0.16b,v0.16b
rev w10, w10
mov v6.s[3],w10
add w8, w8, #2
orr v1.16b,v6.16b,v6.16b
b.ls .Lctr32_tail
rev w12, w8
mov v6.s[3],w12
sub x2,x2,#3 // bias
orr v18.16b,v6.16b,v6.16b
b .Loop3x_ctr32
.align 4
.Loop3x_ctr32:
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
aese v1.16b,v16.16b
aesmc v1.16b,v1.16b
aese v18.16b,v16.16b
aesmc v18.16b,v18.16b
ld1 {v16.4s},[x7],#16
subs w6,w6,#2
aese v0.16b,v17.16b
aesmc v0.16b,v0.16b
aese v1.16b,v17.16b
aesmc v1.16b,v1.16b
aese v18.16b,v17.16b
aesmc v18.16b,v18.16b
ld1 {v17.4s},[x7],#16
b.gt .Loop3x_ctr32
aese v0.16b,v16.16b
aesmc v4.16b,v0.16b
aese v1.16b,v16.16b
aesmc v5.16b,v1.16b
ld1 {v2.16b},[x0],#16
add w9,w8,#1
aese v18.16b,v16.16b
aesmc v18.16b,v18.16b
ld1 {v3.16b},[x0],#16
rev w9,w9
aese v4.16b,v17.16b
aesmc v4.16b,v4.16b
aese v5.16b,v17.16b
aesmc v5.16b,v5.16b
ld1 {v19.16b},[x0],#16
mov x7,x3
aese v18.16b,v17.16b
aesmc v17.16b,v18.16b
aese v4.16b,v20.16b
aesmc v4.16b,v4.16b
aese v5.16b,v20.16b
aesmc v5.16b,v5.16b
eor v2.16b,v2.16b,v7.16b
add w10,w8,#2
aese v17.16b,v20.16b
aesmc v17.16b,v17.16b
eor v3.16b,v3.16b,v7.16b
add w8,w8,#3
aese v4.16b,v21.16b
aesmc v4.16b,v4.16b
aese v5.16b,v21.16b
aesmc v5.16b,v5.16b
// Note the logic to update v0.16b, v1.16b, and v1.16b is written to work
// around a bug in ARM Cortex-A57 and Cortex-A72 cores running in
// 32-bit mode. See the comment above.
eor v19.16b,v19.16b,v7.16b
mov v6.s[3], w9
aese v17.16b,v21.16b
aesmc v17.16b,v17.16b
orr v0.16b,v6.16b,v6.16b
rev w10,w10
aese v4.16b,v22.16b
aesmc v4.16b,v4.16b
mov v6.s[3], w10
rev w12,w8
aese v5.16b,v22.16b
aesmc v5.16b,v5.16b
orr v1.16b,v6.16b,v6.16b
mov v6.s[3], w12
aese v17.16b,v22.16b
aesmc v17.16b,v17.16b
orr v18.16b,v6.16b,v6.16b
subs x2,x2,#3
aese v4.16b,v23.16b
aese v5.16b,v23.16b
aese v17.16b,v23.16b
eor v2.16b,v2.16b,v4.16b
ld1 {v16.4s},[x7],#16 // re-pre-load rndkey[0]
st1 {v2.16b},[x1],#16
eor v3.16b,v3.16b,v5.16b
mov w6,w5
st1 {v3.16b},[x1],#16
eor v19.16b,v19.16b,v17.16b
ld1 {v17.4s},[x7],#16 // re-pre-load rndkey[1]
st1 {v19.16b},[x1],#16
b.hs .Loop3x_ctr32
adds x2,x2,#3
b.eq .Lctr32_done
cmp x2,#1
mov x12,#16
csel x12,xzr,x12,eq
.Lctr32_tail:
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
aese v1.16b,v16.16b
aesmc v1.16b,v1.16b
ld1 {v16.4s},[x7],#16
subs w6,w6,#2
aese v0.16b,v17.16b
aesmc v0.16b,v0.16b
aese v1.16b,v17.16b
aesmc v1.16b,v1.16b
ld1 {v17.4s},[x7],#16
b.gt .Lctr32_tail
aese v0.16b,v16.16b
aesmc v0.16b,v0.16b
aese v1.16b,v16.16b
aesmc v1.16b,v1.16b
aese v0.16b,v17.16b
aesmc v0.16b,v0.16b
aese v1.16b,v17.16b
aesmc v1.16b,v1.16b
ld1 {v2.16b},[x0],x12
aese v0.16b,v20.16b
aesmc v0.16b,v0.16b
aese v1.16b,v20.16b
aesmc v1.16b,v1.16b
ld1 {v3.16b},[x0]
aese v0.16b,v21.16b
aesmc v0.16b,v0.16b
aese v1.16b,v21.16b
aesmc v1.16b,v1.16b
eor v2.16b,v2.16b,v7.16b
aese v0.16b,v22.16b
aesmc v0.16b,v0.16b
aese v1.16b,v22.16b
aesmc v1.16b,v1.16b
eor v3.16b,v3.16b,v7.16b
aese v0.16b,v23.16b
aese v1.16b,v23.16b
cmp x2,#1
eor v2.16b,v2.16b,v0.16b
eor v3.16b,v3.16b,v1.16b
st1 {v2.16b},[x1],#16
b.eq .Lctr32_done
st1 {v3.16b},[x1]
.Lctr32_done:
ldr x29,[sp],#16
ret
.size aes_hw_ctr32_encrypt_blocks,.-aes_hw_ctr32_encrypt_blocks
#endif
#endif // !OPENSSL_NO_ASM && defined(OPENSSL_AARCH64) && defined(__ELF__)
#endif // defined(__aarch64__) && defined(__linux__)
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif
|
