| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * SM4 Cipher Algorithm, AES-NI/AVX2 optimized. |
| * as specified in |
| * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html |
| * |
| * Copyright (C) 2018 Markku-Juhani O. Saarinen <mjos@iki.fi> |
| * Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi> |
| * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com> |
| */ |
| |
| /* Based on SM4 AES-NI work by libgcrypt and Markku-Juhani O. Saarinen at: |
| * https://github.com/mjosaarinen/sm4ni |
| */ |
| |
| #include <linux/linkage.h> |
| #include <linux/cfi_types.h> |
| #include <asm/frame.h> |
| |
| #define rRIP (%rip) |
| |
| /* vector registers */ |
| #define RX0 %ymm0 |
| #define RX1 %ymm1 |
| #define MASK_4BIT %ymm2 |
| #define RTMP0 %ymm3 |
| #define RTMP1 %ymm4 |
| #define RTMP2 %ymm5 |
| #define RTMP3 %ymm6 |
| #define RTMP4 %ymm7 |
| |
| #define RA0 %ymm8 |
| #define RA1 %ymm9 |
| #define RA2 %ymm10 |
| #define RA3 %ymm11 |
| |
| #define RB0 %ymm12 |
| #define RB1 %ymm13 |
| #define RB2 %ymm14 |
| #define RB3 %ymm15 |
| |
| #define RNOT %ymm0 |
| #define RBSWAP %ymm1 |
| |
| #define RX0x %xmm0 |
| #define RX1x %xmm1 |
| #define MASK_4BITx %xmm2 |
| |
| #define RNOTx %xmm0 |
| #define RBSWAPx %xmm1 |
| |
| #define RTMP0x %xmm3 |
| #define RTMP1x %xmm4 |
| #define RTMP2x %xmm5 |
| #define RTMP3x %xmm6 |
| #define RTMP4x %xmm7 |
| |
| |
| /* helper macros */ |
| |
| /* Transpose four 32-bit words between 128-bit vector lanes. */ |
| #define transpose_4x4(x0, x1, x2, x3, t1, t2) \ |
| vpunpckhdq x1, x0, t2; \ |
| vpunpckldq x1, x0, x0; \ |
| \ |
| vpunpckldq x3, x2, t1; \ |
| vpunpckhdq x3, x2, x2; \ |
| \ |
| vpunpckhqdq t1, x0, x1; \ |
| vpunpcklqdq t1, x0, x0; \ |
| \ |
| vpunpckhqdq x2, t2, x3; \ |
| vpunpcklqdq x2, t2, x2; |
| |
| /* post-SubByte transform. */ |
| #define transform_pre(x, lo_t, hi_t, mask4bit, tmp0) \ |
| vpand x, mask4bit, tmp0; \ |
| vpandn x, mask4bit, x; \ |
| vpsrld $4, x, x; \ |
| \ |
| vpshufb tmp0, lo_t, tmp0; \ |
| vpshufb x, hi_t, x; \ |
| vpxor tmp0, x, x; |
| |
| /* post-SubByte transform. Note: x has been XOR'ed with mask4bit by |
| * 'vaeslastenc' instruction. */ |
| #define transform_post(x, lo_t, hi_t, mask4bit, tmp0) \ |
| vpandn mask4bit, x, tmp0; \ |
| vpsrld $4, x, x; \ |
| vpand x, mask4bit, x; \ |
| \ |
| vpshufb tmp0, lo_t, tmp0; \ |
| vpshufb x, hi_t, x; \ |
| vpxor tmp0, x, x; |
| |
| |
| .section .rodata.cst16, "aM", @progbits, 16 |
| .align 16 |
| |
| /* |
| * Following four affine transform look-up tables are from work by |
| * Markku-Juhani O. Saarinen, at https://github.com/mjosaarinen/sm4ni |
| * |
| * These allow exposing SM4 S-Box from AES SubByte. |
| */ |
| |
| /* pre-SubByte affine transform, from SM4 field to AES field. */ |
| .Lpre_tf_lo_s: |
| .quad 0x9197E2E474720701, 0xC7C1B4B222245157 |
| .Lpre_tf_hi_s: |
| .quad 0xE240AB09EB49A200, 0xF052B91BF95BB012 |
| |
| /* post-SubByte affine transform, from AES field to SM4 field. */ |
| .Lpost_tf_lo_s: |
| .quad 0x5B67F2CEA19D0834, 0xEDD14478172BBE82 |
| .Lpost_tf_hi_s: |
| .quad 0xAE7201DD73AFDC00, 0x11CDBE62CC1063BF |
| |
| /* For isolating SubBytes from AESENCLAST, inverse shift row */ |
| .Linv_shift_row: |
| .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b |
| .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03 |
| |
| /* Inverse shift row + Rotate left by 8 bits on 32-bit words with vpshufb */ |
| .Linv_shift_row_rol_8: |
| .byte 0x07, 0x00, 0x0d, 0x0a, 0x0b, 0x04, 0x01, 0x0e |
| .byte 0x0f, 0x08, 0x05, 0x02, 0x03, 0x0c, 0x09, 0x06 |
| |
| /* Inverse shift row + Rotate left by 16 bits on 32-bit words with vpshufb */ |
| .Linv_shift_row_rol_16: |
| .byte 0x0a, 0x07, 0x00, 0x0d, 0x0e, 0x0b, 0x04, 0x01 |
| .byte 0x02, 0x0f, 0x08, 0x05, 0x06, 0x03, 0x0c, 0x09 |
| |
| /* Inverse shift row + Rotate left by 24 bits on 32-bit words with vpshufb */ |
| .Linv_shift_row_rol_24: |
| .byte 0x0d, 0x0a, 0x07, 0x00, 0x01, 0x0e, 0x0b, 0x04 |
| .byte 0x05, 0x02, 0x0f, 0x08, 0x09, 0x06, 0x03, 0x0c |
| |
| /* For CTR-mode IV byteswap */ |
| .Lbswap128_mask: |
| .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 |
| |
| /* For input word byte-swap */ |
| .Lbswap32_mask: |
| .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12 |
| |
| .align 4 |
| /* 4-bit mask */ |
| .L0f0f0f0f: |
| .long 0x0f0f0f0f |
| |
| /* 12 bytes, only for padding */ |
| .Lpadding_deadbeef: |
| .long 0xdeadbeef, 0xdeadbeef, 0xdeadbeef |
| |
| .text |
| SYM_FUNC_START_LOCAL(__sm4_crypt_blk16) |
| /* input: |
| * %rdi: round key array, CTX |
| * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: sixteen parallel |
| * plaintext blocks |
| * output: |
| * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: sixteen parallel |
| * ciphertext blocks |
| */ |
| FRAME_BEGIN |
| |
| vbroadcasti128 .Lbswap32_mask rRIP, RTMP2; |
| vpshufb RTMP2, RA0, RA0; |
| vpshufb RTMP2, RA1, RA1; |
| vpshufb RTMP2, RA2, RA2; |
| vpshufb RTMP2, RA3, RA3; |
| vpshufb RTMP2, RB0, RB0; |
| vpshufb RTMP2, RB1, RB1; |
| vpshufb RTMP2, RB2, RB2; |
| vpshufb RTMP2, RB3, RB3; |
| |
| vpbroadcastd .L0f0f0f0f rRIP, MASK_4BIT; |
| transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1); |
| transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1); |
| |
| #define ROUND(round, s0, s1, s2, s3, r0, r1, r2, r3) \ |
| vpbroadcastd (4*(round))(%rdi), RX0; \ |
| vbroadcasti128 .Lpre_tf_lo_s rRIP, RTMP4; \ |
| vbroadcasti128 .Lpre_tf_hi_s rRIP, RTMP1; \ |
| vmovdqa RX0, RX1; \ |
| vpxor s1, RX0, RX0; \ |
| vpxor s2, RX0, RX0; \ |
| vpxor s3, RX0, RX0; /* s1 ^ s2 ^ s3 ^ rk */ \ |
| vbroadcasti128 .Lpost_tf_lo_s rRIP, RTMP2; \ |
| vbroadcasti128 .Lpost_tf_hi_s rRIP, RTMP3; \ |
| vpxor r1, RX1, RX1; \ |
| vpxor r2, RX1, RX1; \ |
| vpxor r3, RX1, RX1; /* r1 ^ r2 ^ r3 ^ rk */ \ |
| \ |
| /* sbox, non-linear part */ \ |
| transform_pre(RX0, RTMP4, RTMP1, MASK_4BIT, RTMP0); \ |
| transform_pre(RX1, RTMP4, RTMP1, MASK_4BIT, RTMP0); \ |
| vextracti128 $1, RX0, RTMP4x; \ |
| vextracti128 $1, RX1, RTMP0x; \ |
| vaesenclast MASK_4BITx, RX0x, RX0x; \ |
| vaesenclast MASK_4BITx, RTMP4x, RTMP4x; \ |
| vaesenclast MASK_4BITx, RX1x, RX1x; \ |
| vaesenclast MASK_4BITx, RTMP0x, RTMP0x; \ |
| vinserti128 $1, RTMP4x, RX0, RX0; \ |
| vbroadcasti128 .Linv_shift_row rRIP, RTMP4; \ |
| vinserti128 $1, RTMP0x, RX1, RX1; \ |
| transform_post(RX0, RTMP2, RTMP3, MASK_4BIT, RTMP0); \ |
| transform_post(RX1, RTMP2, RTMP3, MASK_4BIT, RTMP0); \ |
| \ |
| /* linear part */ \ |
| vpshufb RTMP4, RX0, RTMP0; \ |
| vpxor RTMP0, s0, s0; /* s0 ^ x */ \ |
| vpshufb RTMP4, RX1, RTMP2; \ |
| vbroadcasti128 .Linv_shift_row_rol_8 rRIP, RTMP4; \ |
| vpxor RTMP2, r0, r0; /* r0 ^ x */ \ |
| vpshufb RTMP4, RX0, RTMP1; \ |
| vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) */ \ |
| vpshufb RTMP4, RX1, RTMP3; \ |
| vbroadcasti128 .Linv_shift_row_rol_16 rRIP, RTMP4; \ |
| vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) */ \ |
| vpshufb RTMP4, RX0, RTMP1; \ |
| vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) ^ rol(x,16) */ \ |
| vpshufb RTMP4, RX1, RTMP3; \ |
| vbroadcasti128 .Linv_shift_row_rol_24 rRIP, RTMP4; \ |
| vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) ^ rol(x,16) */ \ |
| vpshufb RTMP4, RX0, RTMP1; \ |
| vpxor RTMP1, s0, s0; /* s0 ^ x ^ rol(x,24) */ \ |
| vpslld $2, RTMP0, RTMP1; \ |
| vpsrld $30, RTMP0, RTMP0; \ |
| vpxor RTMP0, s0, s0; \ |
| /* s0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \ |
| vpxor RTMP1, s0, s0; \ |
| vpshufb RTMP4, RX1, RTMP3; \ |
| vpxor RTMP3, r0, r0; /* r0 ^ x ^ rol(x,24) */ \ |
| vpslld $2, RTMP2, RTMP3; \ |
| vpsrld $30, RTMP2, RTMP2; \ |
| vpxor RTMP2, r0, r0; \ |
| /* r0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \ |
| vpxor RTMP3, r0, r0; |
| |
| leaq (32*4)(%rdi), %rax; |
| .align 16 |
| .Lroundloop_blk8: |
| ROUND(0, RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3); |
| ROUND(1, RA1, RA2, RA3, RA0, RB1, RB2, RB3, RB0); |
| ROUND(2, RA2, RA3, RA0, RA1, RB2, RB3, RB0, RB1); |
| ROUND(3, RA3, RA0, RA1, RA2, RB3, RB0, RB1, RB2); |
| leaq (4*4)(%rdi), %rdi; |
| cmpq %rax, %rdi; |
| jne .Lroundloop_blk8; |
| |
| #undef ROUND |
| |
| vbroadcasti128 .Lbswap128_mask rRIP, RTMP2; |
| |
| transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1); |
| transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1); |
| vpshufb RTMP2, RA0, RA0; |
| vpshufb RTMP2, RA1, RA1; |
| vpshufb RTMP2, RA2, RA2; |
| vpshufb RTMP2, RA3, RA3; |
| vpshufb RTMP2, RB0, RB0; |
| vpshufb RTMP2, RB1, RB1; |
| vpshufb RTMP2, RB2, RB2; |
| vpshufb RTMP2, RB3, RB3; |
| |
| FRAME_END |
| RET; |
| SYM_FUNC_END(__sm4_crypt_blk16) |
| |
| #define inc_le128(x, minus_one, tmp) \ |
| vpcmpeqq minus_one, x, tmp; \ |
| vpsubq minus_one, x, x; \ |
| vpslldq $8, tmp, tmp; \ |
| vpsubq tmp, x, x; |
| |
| /* |
| * void sm4_aesni_avx2_ctr_enc_blk16(const u32 *rk, u8 *dst, |
| * const u8 *src, u8 *iv) |
| */ |
| SYM_TYPED_FUNC_START(sm4_aesni_avx2_ctr_enc_blk16) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (16 blocks) |
| * %rdx: src (16 blocks) |
| * %rcx: iv (big endian, 128bit) |
| */ |
| FRAME_BEGIN |
| |
| movq 8(%rcx), %rax; |
| bswapq %rax; |
| |
| vzeroupper; |
| |
| vbroadcasti128 .Lbswap128_mask rRIP, RTMP3; |
| vpcmpeqd RNOT, RNOT, RNOT; |
| vpsrldq $8, RNOT, RNOT; /* ab: -1:0 ; cd: -1:0 */ |
| vpaddq RNOT, RNOT, RTMP2; /* ab: -2:0 ; cd: -2:0 */ |
| |
| /* load IV and byteswap */ |
| vmovdqu (%rcx), RTMP4x; |
| vpshufb RTMP3x, RTMP4x, RTMP4x; |
| vmovdqa RTMP4x, RTMP0x; |
| inc_le128(RTMP4x, RNOTx, RTMP1x); |
| vinserti128 $1, RTMP4x, RTMP0, RTMP0; |
| vpshufb RTMP3, RTMP0, RA0; /* +1 ; +0 */ |
| |
| /* check need for handling 64-bit overflow and carry */ |
| cmpq $(0xffffffffffffffff - 16), %rax; |
| ja .Lhandle_ctr_carry; |
| |
| /* construct IVs */ |
| vpsubq RTMP2, RTMP0, RTMP0; /* +3 ; +2 */ |
| vpshufb RTMP3, RTMP0, RA1; |
| vpsubq RTMP2, RTMP0, RTMP0; /* +5 ; +4 */ |
| vpshufb RTMP3, RTMP0, RA2; |
| vpsubq RTMP2, RTMP0, RTMP0; /* +7 ; +6 */ |
| vpshufb RTMP3, RTMP0, RA3; |
| vpsubq RTMP2, RTMP0, RTMP0; /* +9 ; +8 */ |
| vpshufb RTMP3, RTMP0, RB0; |
| vpsubq RTMP2, RTMP0, RTMP0; /* +11 ; +10 */ |
| vpshufb RTMP3, RTMP0, RB1; |
| vpsubq RTMP2, RTMP0, RTMP0; /* +13 ; +12 */ |
| vpshufb RTMP3, RTMP0, RB2; |
| vpsubq RTMP2, RTMP0, RTMP0; /* +15 ; +14 */ |
| vpshufb RTMP3, RTMP0, RB3; |
| vpsubq RTMP2, RTMP0, RTMP0; /* +16 */ |
| vpshufb RTMP3x, RTMP0x, RTMP0x; |
| |
| jmp .Lctr_carry_done; |
| |
| .Lhandle_ctr_carry: |
| /* construct IVs */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vpshufb RTMP3, RTMP0, RA1; /* +3 ; +2 */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vpshufb RTMP3, RTMP0, RA2; /* +5 ; +4 */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vpshufb RTMP3, RTMP0, RA3; /* +7 ; +6 */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vpshufb RTMP3, RTMP0, RB0; /* +9 ; +8 */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vpshufb RTMP3, RTMP0, RB1; /* +11 ; +10 */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vpshufb RTMP3, RTMP0, RB2; /* +13 ; +12 */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vpshufb RTMP3, RTMP0, RB3; /* +15 ; +14 */ |
| inc_le128(RTMP0, RNOT, RTMP1); |
| vextracti128 $1, RTMP0, RTMP0x; |
| vpshufb RTMP3x, RTMP0x, RTMP0x; /* +16 */ |
| |
| .align 4 |
| .Lctr_carry_done: |
| /* store new IV */ |
| vmovdqu RTMP0x, (%rcx); |
| |
| call __sm4_crypt_blk16; |
| |
| vpxor (0 * 32)(%rdx), RA0, RA0; |
| vpxor (1 * 32)(%rdx), RA1, RA1; |
| vpxor (2 * 32)(%rdx), RA2, RA2; |
| vpxor (3 * 32)(%rdx), RA3, RA3; |
| vpxor (4 * 32)(%rdx), RB0, RB0; |
| vpxor (5 * 32)(%rdx), RB1, RB1; |
| vpxor (6 * 32)(%rdx), RB2, RB2; |
| vpxor (7 * 32)(%rdx), RB3, RB3; |
| |
| vmovdqu RA0, (0 * 32)(%rsi); |
| vmovdqu RA1, (1 * 32)(%rsi); |
| vmovdqu RA2, (2 * 32)(%rsi); |
| vmovdqu RA3, (3 * 32)(%rsi); |
| vmovdqu RB0, (4 * 32)(%rsi); |
| vmovdqu RB1, (5 * 32)(%rsi); |
| vmovdqu RB2, (6 * 32)(%rsi); |
| vmovdqu RB3, (7 * 32)(%rsi); |
| |
| vzeroall; |
| FRAME_END |
| RET; |
| SYM_FUNC_END(sm4_aesni_avx2_ctr_enc_blk16) |
| |
| /* |
| * void sm4_aesni_avx2_cbc_dec_blk16(const u32 *rk, u8 *dst, |
| * const u8 *src, u8 *iv) |
| */ |
| SYM_TYPED_FUNC_START(sm4_aesni_avx2_cbc_dec_blk16) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (16 blocks) |
| * %rdx: src (16 blocks) |
| * %rcx: iv |
| */ |
| FRAME_BEGIN |
| |
| vzeroupper; |
| |
| vmovdqu (0 * 32)(%rdx), RA0; |
| vmovdqu (1 * 32)(%rdx), RA1; |
| vmovdqu (2 * 32)(%rdx), RA2; |
| vmovdqu (3 * 32)(%rdx), RA3; |
| vmovdqu (4 * 32)(%rdx), RB0; |
| vmovdqu (5 * 32)(%rdx), RB1; |
| vmovdqu (6 * 32)(%rdx), RB2; |
| vmovdqu (7 * 32)(%rdx), RB3; |
| |
| call __sm4_crypt_blk16; |
| |
| vmovdqu (%rcx), RNOTx; |
| vinserti128 $1, (%rdx), RNOT, RNOT; |
| vpxor RNOT, RA0, RA0; |
| vpxor (0 * 32 + 16)(%rdx), RA1, RA1; |
| vpxor (1 * 32 + 16)(%rdx), RA2, RA2; |
| vpxor (2 * 32 + 16)(%rdx), RA3, RA3; |
| vpxor (3 * 32 + 16)(%rdx), RB0, RB0; |
| vpxor (4 * 32 + 16)(%rdx), RB1, RB1; |
| vpxor (5 * 32 + 16)(%rdx), RB2, RB2; |
| vpxor (6 * 32 + 16)(%rdx), RB3, RB3; |
| vmovdqu (7 * 32 + 16)(%rdx), RNOTx; |
| vmovdqu RNOTx, (%rcx); /* store new IV */ |
| |
| vmovdqu RA0, (0 * 32)(%rsi); |
| vmovdqu RA1, (1 * 32)(%rsi); |
| vmovdqu RA2, (2 * 32)(%rsi); |
| vmovdqu RA3, (3 * 32)(%rsi); |
| vmovdqu RB0, (4 * 32)(%rsi); |
| vmovdqu RB1, (5 * 32)(%rsi); |
| vmovdqu RB2, (6 * 32)(%rsi); |
| vmovdqu RB3, (7 * 32)(%rsi); |
| |
| vzeroall; |
| FRAME_END |
| RET; |
| SYM_FUNC_END(sm4_aesni_avx2_cbc_dec_blk16) |
| |
| /* |
| * void sm4_aesni_avx2_cfb_dec_blk16(const u32 *rk, u8 *dst, |
| * const u8 *src, u8 *iv) |
| */ |
| SYM_TYPED_FUNC_START(sm4_aesni_avx2_cfb_dec_blk16) |
| /* input: |
| * %rdi: round key array, CTX |
| * %rsi: dst (16 blocks) |
| * %rdx: src (16 blocks) |
| * %rcx: iv |
| */ |
| FRAME_BEGIN |
| |
| vzeroupper; |
| |
| /* Load input */ |
| vmovdqu (%rcx), RNOTx; |
| vinserti128 $1, (%rdx), RNOT, RA0; |
| vmovdqu (0 * 32 + 16)(%rdx), RA1; |
| vmovdqu (1 * 32 + 16)(%rdx), RA2; |
| vmovdqu (2 * 32 + 16)(%rdx), RA3; |
| vmovdqu (3 * 32 + 16)(%rdx), RB0; |
| vmovdqu (4 * 32 + 16)(%rdx), RB1; |
| vmovdqu (5 * 32 + 16)(%rdx), RB2; |
| vmovdqu (6 * 32 + 16)(%rdx), RB3; |
| |
| /* Update IV */ |
| vmovdqu (7 * 32 + 16)(%rdx), RNOTx; |
| vmovdqu RNOTx, (%rcx); |
| |
| call __sm4_crypt_blk16; |
| |
| vpxor (0 * 32)(%rdx), RA0, RA0; |
| vpxor (1 * 32)(%rdx), RA1, RA1; |
| vpxor (2 * 32)(%rdx), RA2, RA2; |
| vpxor (3 * 32)(%rdx), RA3, RA3; |
| vpxor (4 * 32)(%rdx), RB0, RB0; |
| vpxor (5 * 32)(%rdx), RB1, RB1; |
| vpxor (6 * 32)(%rdx), RB2, RB2; |
| vpxor (7 * 32)(%rdx), RB3, RB3; |
| |
| vmovdqu RA0, (0 * 32)(%rsi); |
| vmovdqu RA1, (1 * 32)(%rsi); |
| vmovdqu RA2, (2 * 32)(%rsi); |
| vmovdqu RA3, (3 * 32)(%rsi); |
| vmovdqu RB0, (4 * 32)(%rsi); |
| vmovdqu RB1, (5 * 32)(%rsi); |
| vmovdqu RB2, (6 * 32)(%rsi); |
| vmovdqu RB3, (7 * 32)(%rsi); |
| |
| vzeroall; |
| FRAME_END |
| RET; |
| SYM_FUNC_END(sm4_aesni_avx2_cfb_dec_blk16) |
