diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/crypto/aesni-intel_avx-x86_64.S | 51 |
1 files changed, 37 insertions, 14 deletions
diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S index e347ba61db65..0a9cdcfdd987 100644 --- a/arch/x86/crypto/aesni-intel_avx-x86_64.S +++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S @@ -297,7 +297,9 @@ VARIABLE_OFFSET = 16*8 # clobbering all xmm registers # clobbering r10, r11, r12, r13, r14, r15 .macro GCM_ENC_DEC INITIAL_BLOCKS GHASH_8_ENCRYPT_8_PARALLEL GHASH_LAST_8 GHASH_MUL ENC_DEC REP + vmovdqu AadHash(arg2), %xmm8 vmovdqu HashKey(arg2), %xmm13 # xmm13 = HashKey + add arg5, InLen(arg2) mov arg5, %r13 # save the number of bytes of plaintext/ciphertext and $-16, %r13 # r13 = r13 - (r13 mod 16) @@ -410,6 +412,9 @@ _eight_cipher_left\@: _zero_cipher_left\@: + vmovdqu %xmm14, AadHash(arg2) + vmovdqu %xmm9, CurCount(arg2) + cmp $16, arg5 jl _only_less_than_16\@ @@ -420,10 +425,14 @@ _zero_cipher_left\@: # handle the last <16 Byte block seperately + mov %r13, PBlockLen(arg2) vpaddd ONE(%rip), %xmm9, %xmm9 # INCR CNT to get Yn + vmovdqu %xmm9, CurCount(arg2) vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 + ENCRYPT_SINGLE_BLOCK \REP, %xmm9 # E(K, Yn) + vmovdqu %xmm9, PBlockEncKey(arg2) sub $16, %r11 add %r13, %r11 @@ -451,6 +460,7 @@ _only_less_than_16\@: vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 ENCRYPT_SINGLE_BLOCK \REP, %xmm9 # E(K, Yn) + vmovdqu %xmm9, PBlockEncKey(arg2) lea SHIFT_MASK+16(%rip), %r12 sub %r13, %r12 # adjust the shuffle mask pointer to be @@ -480,6 +490,7 @@ _final_ghash_mul\@: vpxor %xmm2, %xmm14, %xmm14 #GHASH computation for the last <16 Byte block \GHASH_MUL %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + vmovdqu %xmm14, AadHash(arg2) sub %r13, %r11 add $16, %r11 .else @@ -491,6 +502,7 @@ _final_ghash_mul\@: vpxor %xmm9, %xmm14, %xmm14 #GHASH computation for the last <16 Byte block \GHASH_MUL %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 + vmovdqu %xmm14, AadHash(arg2) sub %r13, %r11 add $16, %r11 vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 # shuffle xmm9 back to output as ciphertext @@ -526,12 +538,16 @@ _multiple_of_16_bytes\@: # Output: Authorization Tag (AUTH_TAG) # Clobbers rax, r10-r12, and xmm0, xmm1, xmm5-xmm15 .macro GCM_COMPLETE GHASH_MUL REP - mov arg8, %r12 # r12 = aadLen (number of bytes) + vmovdqu AadHash(arg2), %xmm14 + vmovdqu HashKey(arg2), %xmm13 + + mov AadLen(arg2), %r12 # r12 = aadLen (number of bytes) shl $3, %r12 # convert into number of bits vmovd %r12d, %xmm15 # len(A) in xmm15 - shl $3, arg5 # len(C) in bits (*128) - vmovq arg5, %xmm1 + mov InLen(arg2), %r12 + shl $3, %r12 # len(C) in bits (*128) + vmovq %r12, %xmm1 vpslldq $8, %xmm15, %xmm15 # xmm15 = len(A)|| 0x0000000000000000 vpxor %xmm1, %xmm15, %xmm15 # xmm15 = len(A)||len(C) @@ -539,8 +555,7 @@ _multiple_of_16_bytes\@: \GHASH_MUL %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 # final GHASH computation vpshufb SHUF_MASK(%rip), %xmm14, %xmm14 # perform a 16Byte swap - mov arg6, %rax # rax = *Y0 - vmovdqu (%rax), %xmm9 # xmm9 = Y0 + vmovdqu OrigIV(arg2), %xmm9 ENCRYPT_SINGLE_BLOCK \REP, %xmm9 # E(K, Y0) @@ -662,6 +677,20 @@ _get_AAD_done\@: .endm .macro INIT GHASH_MUL PRECOMPUTE + mov arg6, %r11 + mov %r11, AadLen(arg2) # ctx_data.aad_length = aad_length + xor %r11d, %r11d + mov %r11, InLen(arg2) # ctx_data.in_length = 0 + + mov %r11, PBlockLen(arg2) # ctx_data.partial_block_length = 0 + mov %r11, PBlockEncKey(arg2) # ctx_data.partial_block_enc_key = 0 + mov arg4, %rax + movdqu (%rax), %xmm0 + movdqu %xmm0, OrigIV(arg2) # ctx_data.orig_IV = iv + + vpshufb SHUF_MASK(%rip), %xmm0, %xmm0 + movdqu %xmm0, CurCount(arg2) # ctx_data.current_counter = iv + vmovdqu (arg3), %xmm6 # xmm6 = HashKey vpshufb SHUF_MASK(%rip), %xmm6, %xmm6 @@ -809,10 +838,7 @@ _get_AAD_done\@: xor %r11d, %r11d # start AES for num_initial_blocks blocks - mov arg6, %rax # rax = *Y0 - vmovdqu (%rax), \CTR # CTR = Y0 - vpshufb SHUF_MASK(%rip), \CTR, \CTR - + vmovdqu CurCount(arg2), \CTR i = (9-\num_initial_blocks) setreg @@ -1748,16 +1774,13 @@ ENDPROC(aesni_gcm_dec_avx_gen2) .macro INITIAL_BLOCKS_AVX2 REP num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC VER i = (8-\num_initial_blocks) setreg - vmovdqu AadHash(arg2), reg_i + vmovdqu AadHash(arg2), reg_i # initialize the data pointer offset as zero xor %r11d, %r11d # start AES for num_initial_blocks blocks - mov arg6, %rax # rax = *Y0 - vmovdqu (%rax), \CTR # CTR = Y0 - vpshufb SHUF_MASK(%rip), \CTR, \CTR - + vmovdqu CurCount(arg2), \CTR i = (9-\num_initial_blocks) setreg |