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crypto: aesni-intel - Fixed build with binutils 2.16

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This patch fixes the problem with 2.16 binutils.

Signed-off-by: Aidan O'Mahony <aidan.o.mahony@intel.com>
Signed-off-by: Adrian Hoban <adrian.hoban@intel.com>
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tadeusz Struk 2010-12-13 19:51:15 +08:00 committed by Herbert Xu
parent 507cad355f
commit 3c097b8008
1 changed files with 525 additions and 85 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

610
arch/x86/crypto/aesni-intel_asm.S
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@ -204,9 +204,9 @@ enc: .octa 0x2
* arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
*/
.macro INITIAL_BLOCKS num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
.macro INITIAL_BLOCKS_DEC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
mov arg7, %r10 # %r10 = AAD
mov arg8, %r12 # %r12 = aadLen
mov %r12, %r11
@ -228,19 +228,25 @@ _get_AAD_loop2\num_initial_blocks\operation:
cmp %r11, %r12
jne _get_AAD_loop2\num_initial_blocks\operation
_get_AAD_loop2_done\num_initial_blocks\operation:
pshufb SHUF_MASK(%rip), %xmm\i # byte-reflect the AAD data
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
xor %r11, %r11 # initialise the data pointer offset as zero
# start AES for num_initial_blocks blocks
mov %arg5, %rax # %rax = *Y0
movdqu (%rax), \XMM0 # XMM0 = Y0
pshufb SHUF_MASK(%rip), \XMM0
.if \i_seq != 0
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM0
.if (\i == 5) || (\i == 6) || (\i == 7)
.irpc index, \i_seq
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, %xmm\index
pshufb SHUF_MASK(%rip), %xmm\index # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, %xmm\index # perform a 16 byte swap
.endr
.irpc index, \i_seq
pxor 16*0(%arg1), %xmm\index
@ -291,10 +297,11 @@ _get_AAD_loop2_done\num_initial_blocks\operation:
movdqu %xmm\index, (%arg2 , %r11, 1)
# write back plaintext/ciphertext for num_initial_blocks
add $16, %r11
.if \operation == dec
movdqa \TMP1, %xmm\index
.endif
pshufb SHUF_MASK(%rip), %xmm\index
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, %xmm\index
# prepare plaintext/ciphertext for GHASH computation
.endr
.endif
@ -327,16 +334,24 @@ _get_AAD_loop2_done\num_initial_blocks\operation:
*/
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM1
pshufb SHUF_MASK(%rip), \XMM1 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM2
pshufb SHUF_MASK(%rip), \XMM2 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM3
pshufb SHUF_MASK(%rip), \XMM3 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM4
pshufb SHUF_MASK(%rip), \XMM4 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
pxor 16*0(%arg1), \XMM1
pxor 16*0(%arg1), \XMM2
pxor 16*0(%arg1), \XMM3
@ -385,41 +400,268 @@ _get_AAD_loop2_done\num_initial_blocks\operation:
AESENCLAST \TMP2, \XMM4
movdqu 16*0(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM1
.if \operation == dec
movdqu \XMM1, 16*0(%arg2 , %r11 , 1)
movdqa \TMP1, \XMM1
.endif
movdqu 16*1(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM2
.if \operation == dec
movdqu \XMM2, 16*1(%arg2 , %r11 , 1)
movdqa \TMP1, \XMM2
.endif
movdqu 16*2(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM3
.if \operation == dec
movdqu \XMM3, 16*2(%arg2 , %r11 , 1)
movdqa \TMP1, \XMM3
.endif
movdqu 16*3(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM4
.if \operation == dec
movdqu \XMM4, 16*3(%arg2 , %r11 , 1)
movdqa \TMP1, \XMM4
.else
add $64, %r11
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
pxor \XMMDst, \XMM1
# combine GHASHed value with the corresponding ciphertext
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
_initial_blocks_done\num_initial_blocks\operation:
.endm
/*
* if a = number of total plaintext bytes
* b = floor(a/16)
* num_initial_blocks = b mod 4
* encrypt the initial num_initial_blocks blocks and apply ghash on
* the ciphertext
* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
* are clobbered
* arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
*/
.macro INITIAL_BLOCKS_ENC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
mov arg7, %r10 # %r10 = AAD
mov arg8, %r12 # %r12 = aadLen
mov %r12, %r11
pxor %xmm\i, %xmm\i
_get_AAD_loop\num_initial_blocks\operation:
movd (%r10), \TMP1
pslldq $12, \TMP1
psrldq $4, %xmm\i
pxor \TMP1, %xmm\i
add $4, %r10
sub $4, %r12
jne _get_AAD_loop\num_initial_blocks\operation
cmp $16, %r11
je _get_AAD_loop2_done\num_initial_blocks\operation
mov $16, %r12
_get_AAD_loop2\num_initial_blocks\operation:
psrldq $4, %xmm\i
sub $4, %r12
cmp %r11, %r12
jne _get_AAD_loop2\num_initial_blocks\operation
_get_AAD_loop2_done\num_initial_blocks\operation:
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
xor %r11, %r11 # initialise the data pointer offset as zero
# start AES for num_initial_blocks blocks
mov %arg5, %rax # %rax = *Y0
movdqu (%rax), \XMM0 # XMM0 = Y0
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM0
.if (\i == 5) || (\i == 6) || (\i == 7)
.irpc index, \i_seq
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, %xmm\index
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, %xmm\index # perform a 16 byte swap
.endr
.irpc index, \i_seq
pxor 16*0(%arg1), %xmm\index
.endr
.irpc index, \i_seq
movaps 0x10(%rdi), \TMP1
AESENC \TMP1, %xmm\index # Round 1
.endr
.irpc index, \i_seq
movaps 0x20(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0x30(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0x40(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0x50(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0x60(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0x70(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0x80(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0x90(%arg1), \TMP1
AESENC \TMP1, %xmm\index # Round 2
.endr
.irpc index, \i_seq
movaps 0xa0(%arg1), \TMP1
AESENCLAST \TMP1, %xmm\index # Round 10
.endr
.irpc index, \i_seq
movdqu (%arg3 , %r11, 1), \TMP1
pxor \TMP1, %xmm\index
movdqu %xmm\index, (%arg2 , %r11, 1)
# write back plaintext/ciphertext for num_initial_blocks
add $16, %r11
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, %xmm\index
# prepare plaintext/ciphertext for GHASH computation
.endr
.endif
GHASH_MUL %xmm\i, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
# apply GHASH on num_initial_blocks blocks
.if \i == 5
pxor %xmm5, %xmm6
GHASH_MUL %xmm6, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
pxor %xmm6, %xmm7
GHASH_MUL %xmm7, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
pxor %xmm7, %xmm8
GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
.elseif \i == 6
pxor %xmm6, %xmm7
GHASH_MUL %xmm7, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
pxor %xmm7, %xmm8
GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
.elseif \i == 7
pxor %xmm7, %xmm8
GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
.endif
cmp $64, %r13
jl _initial_blocks_done\num_initial_blocks\operation
# no need for precomputed values
/*
*
* Precomputations for HashKey parallel with encryption of first 4 blocks.
* Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
*/
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM1
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM2
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM3
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
paddd ONE(%rip), \XMM0 # INCR Y0
movdqa \XMM0, \XMM4
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
pxor 16*0(%arg1), \XMM1
pxor 16*0(%arg1), \XMM2
pxor 16*0(%arg1), \XMM3
pxor 16*0(%arg1), \XMM4
movdqa \TMP3, \TMP5
pshufd $78, \TMP3, \TMP1
pxor \TMP3, \TMP1
movdqa \TMP1, HashKey_k(%rsp)
GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
# TMP5 = HashKey^2<<1 (mod poly)
movdqa \TMP5, HashKey_2(%rsp)
# HashKey_2 = HashKey^2<<1 (mod poly)
pshufd $78, \TMP5, \TMP1
pxor \TMP5, \TMP1
movdqa \TMP1, HashKey_2_k(%rsp)
.irpc index, 1234 # do 4 rounds
movaps 0x10*\index(%arg1), \TMP1
AESENC \TMP1, \XMM1
AESENC \TMP1, \XMM2
AESENC \TMP1, \XMM3
AESENC \TMP1, \XMM4
.endr
GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
# TMP5 = HashKey^3<<1 (mod poly)
movdqa \TMP5, HashKey_3(%rsp)
pshufd $78, \TMP5, \TMP1
pxor \TMP5, \TMP1
movdqa \TMP1, HashKey_3_k(%rsp)
.irpc index, 56789 # do next 5 rounds
movaps 0x10*\index(%arg1), \TMP1
AESENC \TMP1, \XMM1
AESENC \TMP1, \XMM2
AESENC \TMP1, \XMM3
AESENC \TMP1, \XMM4
.endr
GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
# TMP5 = HashKey^3<<1 (mod poly)
movdqa \TMP5, HashKey_4(%rsp)
pshufd $78, \TMP5, \TMP1
pxor \TMP5, \TMP1
movdqa \TMP1, HashKey_4_k(%rsp)
movaps 0xa0(%arg1), \TMP2
AESENCLAST \TMP2, \XMM1
AESENCLAST \TMP2, \XMM2
AESENCLAST \TMP2, \XMM3
AESENCLAST \TMP2, \XMM4
movdqu 16*0(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM1
movdqu 16*1(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM2
movdqu 16*2(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM3
movdqu 16*3(%arg3 , %r11 , 1), \TMP1
pxor \TMP1, \XMM4
movdqu \XMM1, 16*0(%arg2 , %r11 , 1)
movdqu \XMM2, 16*1(%arg2 , %r11 , 1)
movdqu \XMM3, 16*2(%arg2 , %r11 , 1)
movdqu \XMM4, 16*3(%arg2 , %r11 , 1)
.endif
add $64, %r11
pshufb SHUF_MASK(%rip), \XMM1 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
pxor \XMMDst, \XMM1
# combine GHASHed value with the corresponding ciphertext
pshufb SHUF_MASK(%rip), \XMM2 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), \XMM3 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), \XMM4 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
movdqa SHUF_MASK(%rip), %xmm14
PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
_initial_blocks_done\num_initial_blocks\operation:
.endm
/*
@ -428,7 +670,7 @@ _initial_blocks_done\num_initial_blocks\operation:
* arg1, %arg2, %arg3 are used as pointers only, not modified
* %r11 is the data offset value
*/
.macro GHASH_4_ENCRYPT_4_PARALLEL TMP1 TMP2 TMP3 TMP4 TMP5 \
.macro GHASH_4_ENCRYPT_4_PARALLEL_ENC TMP1 TMP2 TMP3 TMP4 TMP5 \
TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM1, \XMM5
@ -436,6 +678,7 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM3, \XMM7
movdqa \XMM4, \XMM8
movdqa SHUF_MASK(%rip), %xmm15
# multiply TMP5 * HashKey using karatsuba
movdqa \XMM5, \TMP4
@ -451,11 +694,12 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM0, \XMM3
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM4
pshufb SHUF_MASK(%rip), \XMM1 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
PCLMULQDQ 0x00, \TMP5, \XMM5 # XMM5 = a0*b0
pshufb SHUF_MASK(%rip), \XMM2 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), \XMM3 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), \XMM4 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
pxor (%arg1), \XMM1
pxor (%arg1), \XMM2
pxor (%arg1), \XMM3
@ -553,37 +797,216 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movdqu (%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK
.if \operation == dec
movdqu \XMM1, (%arg2,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM1
.endif
movdqu 16(%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM2 # Ciphertext/Plaintext XOR EK
.if \operation == dec
movdqu \XMM2, 16(%arg2,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM2
.endif
movdqu 32(%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM3 # Ciphertext/Plaintext XOR EK
.if \operation == dec
movdqu \XMM3, 32(%arg2,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM3
.endif
movdqu 48(%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM4 # Ciphertext/Plaintext XOR EK
.if \operation == dec
movdqu \XMM1, (%arg2,%r11,1) # Write to the ciphertext buffer
movdqu \XMM2, 16(%arg2,%r11,1) # Write to the ciphertext buffer
movdqu \XMM3, 32(%arg2,%r11,1) # Write to the ciphertext buffer
movdqu \XMM4, 48(%arg2,%r11,1) # Write to the ciphertext buffer
PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
pxor \TMP4, \TMP1
pxor \XMM8, \XMM5
pxor \TMP6, \TMP2
pxor \TMP1, \TMP2
pxor \XMM5, \TMP2
movdqa \TMP2, \TMP3
pslldq $8, \TMP3 # left shift TMP3 2 DWs
psrldq $8, \TMP2 # right shift TMP2 2 DWs
pxor \TMP3, \XMM5
pxor \TMP2, \TMP1 # accumulate the results in TMP1:XMM5
# first phase of reduction
movdqa \XMM5, \TMP2
movdqa \XMM5, \TMP3
movdqa \XMM5, \TMP4
# move XMM5 into TMP2, TMP3, TMP4 in order to perform shifts independently
pslld $31, \TMP2 # packed right shift << 31
pslld $30, \TMP3 # packed right shift << 30
pslld $25, \TMP4 # packed right shift << 25
pxor \TMP3, \TMP2 # xor the shifted versions
pxor \TMP4, \TMP2
movdqa \TMP2, \TMP5
psrldq $4, \TMP5 # right shift T5 1 DW
pslldq $12, \TMP2 # left shift T2 3 DWs
pxor \TMP2, \XMM5
# second phase of reduction
movdqa \XMM5,\TMP2 # make 3 copies of XMM5 into TMP2, TMP3, TMP4
movdqa \XMM5,\TMP3
movdqa \XMM5,\TMP4
psrld $1, \TMP2 # packed left shift >>1
psrld $2, \TMP3 # packed left shift >>2
psrld $7, \TMP4 # packed left shift >>7
pxor \TMP3,\TMP2 # xor the shifted versions
pxor \TMP4,\TMP2
pxor \TMP5, \TMP2
pxor \TMP2, \XMM5
pxor \TMP1, \XMM5 # result is in TMP1
pxor \XMM5, \XMM1
.endm
/*
* decrypt 4 blocks at a time
* ghash the 4 previously decrypted ciphertext blocks
* arg1, %arg2, %arg3 are used as pointers only, not modified
* %r11 is the data offset value
*/
.macro GHASH_4_ENCRYPT_4_PARALLEL_DEC TMP1 TMP2 TMP3 TMP4 TMP5 \
TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM1, \XMM5
movdqa \XMM2, \XMM6
movdqa \XMM3, \XMM7
movdqa \XMM4, \XMM8
movdqa SHUF_MASK(%rip), %xmm15
# multiply TMP5 * HashKey using karatsuba
movdqa \XMM5, \TMP4
pshufd $78, \XMM5, \TMP6
pxor \XMM5, \TMP6
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa HashKey_4(%rsp), \TMP5
PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1
movdqa \XMM0, \XMM1
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM2
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM3
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM4
PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
PCLMULQDQ 0x00, \TMP5, \XMM5 # XMM5 = a0*b0
PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
pxor (%arg1), \XMM1
pxor (%arg1), \XMM2
pxor (%arg1), \XMM3
pxor (%arg1), \XMM4
movdqa HashKey_4_k(%rsp), \TMP5
PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0)
movaps 0x10(%arg1), \TMP1
AESENC \TMP1, \XMM1 # Round 1
AESENC \TMP1, \XMM2
AESENC \TMP1, \XMM3
AESENC \TMP1, \XMM4
movaps 0x20(%arg1), \TMP1
AESENC \TMP1, \XMM1 # Round 2
AESENC \TMP1, \XMM2
AESENC \TMP1, \XMM3
AESENC \TMP1, \XMM4
movdqa \XMM6, \TMP1
pshufd $78, \XMM6, \TMP2
pxor \XMM6, \TMP2
movdqa HashKey_3(%rsp), \TMP5
PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1
movaps 0x30(%arg1), \TMP3
AESENC \TMP3, \XMM1 # Round 3
AESENC \TMP3, \XMM2
AESENC \TMP3, \XMM3
AESENC \TMP3, \XMM4
PCLMULQDQ 0x00, \TMP5, \XMM6 # XMM6 = a0*b0
movaps 0x40(%arg1), \TMP3
AESENC \TMP3, \XMM1 # Round 4
AESENC \TMP3, \XMM2
AESENC \TMP3, \XMM3
AESENC \TMP3, \XMM4
movdqa HashKey_3_k(%rsp), \TMP5
PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movaps 0x50(%arg1), \TMP3
AESENC \TMP3, \XMM1 # Round 5
AESENC \TMP3, \XMM2
AESENC \TMP3, \XMM3
AESENC \TMP3, \XMM4
pxor \TMP1, \TMP4
# accumulate the results in TMP4:XMM5, TMP6 holds the middle part
pxor \XMM6, \XMM5
pxor \TMP2, \TMP6
movdqa \XMM7, \TMP1
pshufd $78, \XMM7, \TMP2
pxor \XMM7, \TMP2
movdqa HashKey_2(%rsp ), \TMP5
# Multiply TMP5 * HashKey using karatsuba
PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
movaps 0x60(%arg1), \TMP3
AESENC \TMP3, \XMM1 # Round 6
AESENC \TMP3, \XMM2
AESENC \TMP3, \XMM3
AESENC \TMP3, \XMM4
PCLMULQDQ 0x00, \TMP5, \XMM7 # XMM7 = a0*b0
movaps 0x70(%arg1), \TMP3
AESENC \TMP3, \XMM1 # Round 7
AESENC \TMP3, \XMM2
AESENC \TMP3, \XMM3
AESENC \TMP3, \XMM4
movdqa HashKey_2_k(%rsp), \TMP5
PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movaps 0x80(%arg1), \TMP3
AESENC \TMP3, \XMM1 # Round 8
AESENC \TMP3, \XMM2
AESENC \TMP3, \XMM3
AESENC \TMP3, \XMM4
pxor \TMP1, \TMP4
# accumulate the results in TMP4:XMM5, TMP6 holds the middle part
pxor \XMM7, \XMM5
pxor \TMP2, \TMP6
# Multiply XMM8 * HashKey
# XMM8 and TMP5 hold the values for the two operands
movdqa \XMM8, \TMP1
pshufd $78, \XMM8, \TMP2
pxor \XMM8, \TMP2
movdqa HashKey(%rsp), \TMP5
PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
movaps 0x90(%arg1), \TMP3
AESENC \TMP3, \XMM1 # Round 9
AESENC \TMP3, \XMM2
AESENC \TMP3, \XMM3
AESENC \TMP3, \XMM4
PCLMULQDQ 0x00, \TMP5, \XMM8 # XMM8 = a0*b0
movaps 0xa0(%arg1), \TMP3
AESENCLAST \TMP3, \XMM1 # Round 10
AESENCLAST \TMP3, \XMM2
AESENCLAST \TMP3, \XMM3
AESENCLAST \TMP3, \XMM4
movdqa HashKey_k(%rsp), \TMP5
PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movdqu (%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK
movdqu \XMM1, (%arg2,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM1
movdqu 16(%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM2 # Ciphertext/Plaintext XOR EK
movdqu \XMM2, 16(%arg2,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM2
movdqu 32(%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM3 # Ciphertext/Plaintext XOR EK
movdqu \XMM3, 32(%arg2,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM3
movdqu 48(%arg3,%r11,1), \TMP3
pxor \TMP3, \XMM4 # Ciphertext/Plaintext XOR EK
movdqu \XMM4, 48(%arg2,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM4
.else
movdqu \XMM1, (%arg2,%r11,1) # Write to the ciphertext buffer
movdqu \XMM2, 16(%arg2,%r11,1) # Write to the ciphertext buffer
movdqu \XMM3, 32(%arg2,%r11,1) # Write to the ciphertext buffer
movdqu \XMM4, 48(%arg2,%r11,1) # Write to the ciphertext buffer
.endif
pshufb SHUF_MASK(%rip), \XMM1 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), \XMM2 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), \XMM3 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), \XMM4 # perform a 16 byte sway
PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
pxor \TMP4, \TMP1
pxor \XMM8, \XMM5
@ -853,7 +1276,9 @@ ENTRY(aesni_gcm_dec)
and $~63, %rsp # align rsp to 64 bytes
mov %arg6, %r12
movdqu (%r12), %xmm13 # %xmm13 = HashKey
pshufb SHUF_MASK(%rip), %xmm13
movdqa SHUF_MASK(%rip), %xmm2
PSHUFB_XMM %xmm2, %xmm13
# Precompute HashKey<<1 (mod poly) from the hash key (required for GHASH)
@ -885,22 +1310,22 @@ ENTRY(aesni_gcm_dec)
jb _initial_num_blocks_is_1_decrypt
je _initial_num_blocks_is_2_decrypt
_initial_num_blocks_is_3_decrypt:
INITIAL_BLOCKS 3, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_DEC 3, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 5, 678, dec
sub $48, %r13
jmp _initial_blocks_decrypted
_initial_num_blocks_is_2_decrypt:
INITIAL_BLOCKS 2, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_DEC 2, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 6, 78, dec
sub $32, %r13
jmp _initial_blocks_decrypted
_initial_num_blocks_is_1_decrypt:
INITIAL_BLOCKS 1, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_DEC 1, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 7, 8, dec
sub $16, %r13
jmp _initial_blocks_decrypted
_initial_num_blocks_is_0_decrypt:
INITIAL_BLOCKS 0, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_DEC 0, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 8, 0, dec
_initial_blocks_decrypted:
cmp $0, %r13
@ -908,7 +1333,7 @@ _initial_blocks_decrypted:
sub $64, %r13
je _four_cipher_left_decrypt
_decrypt_by_4:
GHASH_4_ENCRYPT_4_PARALLEL %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, \
GHASH_4_ENCRYPT_4_PARALLEL_DEC %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, \
%xmm14, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, dec
add $64, %r11
sub $64, %r13
@ -924,7 +1349,9 @@ _zero_cipher_left_decrypt:
# Handle the last <16 byte block seperately
paddd ONE(%rip), %xmm0 # increment CNT to get Yn
pshufb SHUF_MASK(%rip), %xmm0
movdqa SHUF_MASK(%rip), %xmm10
PSHUFB_XMM %xmm10, %xmm0
ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # E(K, Yn)
sub $16, %r11
add %r13, %r11
@ -934,14 +1361,17 @@ _zero_cipher_left_decrypt:
# adjust the shuffle mask pointer to be able to shift 16-%r13 bytes
# (%r13 is the number of bytes in plaintext mod 16)
movdqu (%r12), %xmm2 # get the appropriate shuffle mask
pshufb %xmm2, %xmm1 # right shift 16-%r13 butes
PSHUFB_XMM %xmm2, %xmm1 # right shift 16-%r13 butes
movdqa %xmm1, %xmm2
pxor %xmm1, %xmm0 # Ciphertext XOR E(K, Yn)
movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
# get the appropriate mask to mask out top 16-%r13 bytes of %xmm0
pand %xmm1, %xmm0 # mask out top 16-%r13 bytes of %xmm0
pand %xmm1, %xmm2
pshufb SHUF_MASK(%rip),%xmm2
movdqa SHUF_MASK(%rip), %xmm10
PSHUFB_XMM %xmm10 ,%xmm2
pxor %xmm2, %xmm8
GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
# GHASH computation for the last <16 byte block
@ -949,13 +1379,13 @@ _zero_cipher_left_decrypt:
add $16, %r11
# output %r13 bytes
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
cmp $8, %r13
jle _less_than_8_bytes_left_decrypt
mov %rax, (%arg2 , %r11, 1)
add $8, %r11
psrldq $8, %xmm0
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
sub $8, %r13
_less_than_8_bytes_left_decrypt:
mov %al, (%arg2, %r11, 1)
@ -968,13 +1398,15 @@ _multiple_of_16_bytes_decrypt:
shl $3, %r12 # convert into number of bits
movd %r12d, %xmm15 # len(A) in %xmm15
shl $3, %arg4 # len(C) in bits (*128)
movq %arg4, %xmm1
MOVQ_R64_XMM %arg4, %xmm1
pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
pxor %xmm1, %xmm15 # %xmm15 = len(A)||len(C)
pxor %xmm15, %xmm8
GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
# final GHASH computation
pshufb SHUF_MASK(%rip), %xmm8
movdqa SHUF_MASK(%rip), %xmm10
PSHUFB_XMM %xmm10, %xmm8
mov %arg5, %rax # %rax = *Y0
movdqu (%rax), %xmm0 # %xmm0 = Y0
ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # E(K, Y0)
@ -987,11 +1419,11 @@ _return_T_decrypt:
cmp $12, %r11
je _T_12_decrypt
_T_8_decrypt:
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
mov %rax, (%r10)
jmp _return_T_done_decrypt
_T_12_decrypt:
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
mov %rax, (%r10)
psrldq $8, %xmm0
movd %xmm0, %eax
@ -1103,7 +1535,9 @@ ENTRY(aesni_gcm_enc)
and $~63, %rsp
mov %arg6, %r12
movdqu (%r12), %xmm13
pshufb SHUF_MASK(%rip), %xmm13
movdqa SHUF_MASK(%rip), %xmm2
PSHUFB_XMM %xmm2, %xmm13
# precompute HashKey<<1 mod poly from the HashKey (required for GHASH)
@ -1134,22 +1568,22 @@ ENTRY(aesni_gcm_enc)
jb _initial_num_blocks_is_1_encrypt
je _initial_num_blocks_is_2_encrypt
_initial_num_blocks_is_3_encrypt:
INITIAL_BLOCKS 3, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_ENC 3, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 5, 678, enc
sub $48, %r13
jmp _initial_blocks_encrypted
_initial_num_blocks_is_2_encrypt:
INITIAL_BLOCKS 2, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_ENC 2, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 6, 78, enc
sub $32, %r13
jmp _initial_blocks_encrypted
_initial_num_blocks_is_1_encrypt:
INITIAL_BLOCKS 1, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_ENC 1, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 7, 8, enc
sub $16, %r13
jmp _initial_blocks_encrypted
_initial_num_blocks_is_0_encrypt:
INITIAL_BLOCKS 0, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
INITIAL_BLOCKS_ENC 0, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 8, 0, enc
_initial_blocks_encrypted:
@ -1160,7 +1594,7 @@ _initial_blocks_encrypted:
sub $64, %r13
je _four_cipher_left_encrypt
_encrypt_by_4_encrypt:
GHASH_4_ENCRYPT_4_PARALLEL %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, \
GHASH_4_ENCRYPT_4_PARALLEL_ENC %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, \
%xmm14, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, enc
add $64, %r11
sub $64, %r13
@ -1175,7 +1609,9 @@ _zero_cipher_left_encrypt:
# Handle the last <16 Byte block seperately
paddd ONE(%rip), %xmm0 # INCR CNT to get Yn
pshufb SHUF_MASK(%rip), %xmm0
movdqa SHUF_MASK(%rip), %xmm10
PSHUFB_XMM %xmm10, %xmm0
ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # Encrypt(K, Yn)
sub $16, %r11
add %r13, %r11
@ -1185,29 +1621,31 @@ _zero_cipher_left_encrypt:
# adjust the shuffle mask pointer to be able to shift 16-r13 bytes
# (%r13 is the number of bytes in plaintext mod 16)
movdqu (%r12), %xmm2 # get the appropriate shuffle mask
pshufb %xmm2, %xmm1 # shift right 16-r13 byte
PSHUFB_XMM %xmm2, %xmm1 # shift right 16-r13 byte
pxor %xmm1, %xmm0 # Plaintext XOR Encrypt(K, Yn)
movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
# get the appropriate mask to mask out top 16-r13 bytes of xmm0
pand %xmm1, %xmm0 # mask out top 16-r13 bytes of xmm0
movdqa SHUF_MASK(%rip), %xmm10
PSHUFB_XMM %xmm10,%xmm0
pshufb SHUF_MASK(%rip),%xmm0
pxor %xmm0, %xmm8
GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
# GHASH computation for the last <16 byte block
sub %r13, %r11
add $16, %r11
pshufb SHUF_MASK(%rip), %xmm0
PSHUFB_XMM %xmm10, %xmm1
# shuffle xmm0 back to output as ciphertext
# Output %r13 bytes
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
cmp $8, %r13
jle _less_than_8_bytes_left_encrypt
mov %rax, (%arg2 , %r11, 1)
add $8, %r11
psrldq $8, %xmm0
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
sub $8, %r13
_less_than_8_bytes_left_encrypt:
mov %al, (%arg2, %r11, 1)
@ -1220,14 +1658,15 @@ _multiple_of_16_bytes_encrypt:
shl $3, %r12
movd %r12d, %xmm15 # len(A) in %xmm15
shl $3, %arg4 # len(C) in bits (*128)
movq %arg4, %xmm1
MOVQ_R64_XMM %arg4, %xmm1
pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
pxor %xmm1, %xmm15 # %xmm15 = len(A)||len(C)
pxor %xmm15, %xmm8
GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
# final GHASH computation
movdqa SHUF_MASK(%rip), %xmm10
PSHUFB_XMM %xmm10, %xmm8 # perform a 16 byte swap
pshufb SHUF_MASK(%rip), %xmm8 # perform a 16 byte swap
mov %arg5, %rax # %rax = *Y0
movdqu (%rax), %xmm0 # %xmm0 = Y0
ENCRYPT_SINGLE_BLOCK %xmm0, %xmm15 # Encrypt(K, Y0)
@ -1240,11 +1679,11 @@ _return_T_encrypt:
cmp $12, %r11
je _T_12_encrypt
_T_8_encrypt:
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
mov %rax, (%r10)
jmp _return_T_done_encrypt
_T_12_encrypt:
movq %xmm0, %rax
MOVQ_R64_XMM %xmm0, %rax
mov %rax, (%r10)
psrldq $8, %xmm0
movd %xmm0, %eax
@ -1258,6 +1697,7 @@ _return_T_done_encrypt:
pop %r13
pop %r12
ret
#endif