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linux/arch/x86/crypto/aesni-intel_asm.S
Huang Ying e6efaa0253 crypto: aes-ni - Fix cbc mode IV saving 
Original implementation of aesni_cbc_dec do not save IV if input
length % 4 == 0. This will make decryption of next block failed.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-18 19:33:57 +08:00

898 lines
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/*
* Implement AES algorithm in Intel AES-NI instructions.
*
* The white paper of AES-NI instructions can be downloaded from:
* http://softwarecommunity.intel.com/isn/downloads/intelavx/AES-Instructions-Set_WP.pdf
*
* Copyright (C) 2008, Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
* Vinodh Gopal <vinodh.gopal@intel.com>
* Kahraman Akdemir
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/linkage.h>
.text
#define STATE1 %xmm0
#define STATE2 %xmm4
#define STATE3 %xmm5
#define STATE4 %xmm6
#define STATE STATE1
#define IN1 %xmm1
#define IN2 %xmm7
#define IN3 %xmm8
#define IN4 %xmm9
#define IN IN1
#define KEY %xmm2
#define IV %xmm3
#define KEYP %rdi
#define OUTP %rsi
#define INP %rdx
#define LEN %rcx
#define IVP %r8
#define KLEN %r9d
#define T1 %r10
#define TKEYP T1
#define T2 %r11
_key_expansion_128:
_key_expansion_256a:
pshufd $0b11111111, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
shufps $0b10001100, %xmm0, %xmm4
pxor %xmm4, %xmm0
pxor %xmm1, %xmm0
movaps %xmm0, (%rcx)
add $0x10, %rcx
ret
_key_expansion_192a:
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
shufps $0b10001100, %xmm0, %xmm4
pxor %xmm4, %xmm0
pxor %xmm1, %xmm0
movaps %xmm2, %xmm5
movaps %xmm2, %xmm6
pslldq $4, %xmm5
pshufd $0b11111111, %xmm0, %xmm3
pxor %xmm3, %xmm2
pxor %xmm5, %xmm2
movaps %xmm0, %xmm1
shufps $0b01000100, %xmm0, %xmm6
movaps %xmm6, (%rcx)
shufps $0b01001110, %xmm2, %xmm1
movaps %xmm1, 16(%rcx)
add $0x20, %rcx
ret
_key_expansion_192b:
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
shufps $0b10001100, %xmm0, %xmm4
pxor %xmm4, %xmm0
pxor %xmm1, %xmm0
movaps %xmm2, %xmm5
pslldq $4, %xmm5
pshufd $0b11111111, %xmm0, %xmm3
pxor %xmm3, %xmm2
pxor %xmm5, %xmm2
movaps %xmm0, (%rcx)
add $0x10, %rcx
ret
_key_expansion_256b:
pshufd $0b10101010, %xmm1, %xmm1
shufps $0b00010000, %xmm2, %xmm4
pxor %xmm4, %xmm2
shufps $0b10001100, %xmm2, %xmm4
pxor %xmm4, %xmm2
pxor %xmm1, %xmm2
movaps %xmm2, (%rcx)
add $0x10, %rcx
ret
/*
* int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
* unsigned int key_len)
*/
ENTRY(aesni_set_key)
movups (%rsi), %xmm0 # user key (first 16 bytes)
movaps %xmm0, (%rdi)
lea 0x10(%rdi), %rcx # key addr
movl %edx, 480(%rdi)
pxor %xmm4, %xmm4 # xmm4 is assumed 0 in _key_expansion_x
cmp $24, %dl
jb .Lenc_key128
je .Lenc_key192
movups 0x10(%rsi), %xmm2 # other user key
movaps %xmm2, (%rcx)
add $0x10, %rcx
# aeskeygenassist $0x1, %xmm2, %xmm1 # round 1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x01
call _key_expansion_256a
# aeskeygenassist $0x1, %xmm0, %xmm1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x01
call _key_expansion_256b
# aeskeygenassist $0x2, %xmm2, %xmm1 # round 2
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x02
call _key_expansion_256a
# aeskeygenassist $0x2, %xmm0, %xmm1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x02
call _key_expansion_256b
# aeskeygenassist $0x4, %xmm2, %xmm1 # round 3
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x04
call _key_expansion_256a
# aeskeygenassist $0x4, %xmm0, %xmm1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x04
call _key_expansion_256b
# aeskeygenassist $0x8, %xmm2, %xmm1 # round 4
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x08
call _key_expansion_256a
# aeskeygenassist $0x8, %xmm0, %xmm1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x08
call _key_expansion_256b
# aeskeygenassist $0x10, %xmm2, %xmm1 # round 5
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x10
call _key_expansion_256a
# aeskeygenassist $0x10, %xmm0, %xmm1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x10
call _key_expansion_256b
# aeskeygenassist $0x20, %xmm2, %xmm1 # round 6
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x20
call _key_expansion_256a
# aeskeygenassist $0x20, %xmm0, %xmm1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x20
call _key_expansion_256b
# aeskeygenassist $0x40, %xmm2, %xmm1 # round 7
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x40
call _key_expansion_256a
jmp .Ldec_key
.Lenc_key192:
movq 0x10(%rsi), %xmm2 # other user key
# aeskeygenassist $0x1, %xmm2, %xmm1 # round 1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x01
call _key_expansion_192a
# aeskeygenassist $0x2, %xmm2, %xmm1 # round 2
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x02
call _key_expansion_192b
# aeskeygenassist $0x4, %xmm2, %xmm1 # round 3
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x04
call _key_expansion_192a
# aeskeygenassist $0x8, %xmm2, %xmm1 # round 4
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x08
call _key_expansion_192b
# aeskeygenassist $0x10, %xmm2, %xmm1 # round 5
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x10
call _key_expansion_192a
# aeskeygenassist $0x20, %xmm2, %xmm1 # round 6
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x20
call _key_expansion_192b
# aeskeygenassist $0x40, %xmm2, %xmm1 # round 7
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x40
call _key_expansion_192a
# aeskeygenassist $0x80, %xmm2, %xmm1 # round 8
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xca, 0x80
call _key_expansion_192b
jmp .Ldec_key
.Lenc_key128:
# aeskeygenassist $0x1, %xmm0, %xmm1 # round 1
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x01
call _key_expansion_128
# aeskeygenassist $0x2, %xmm0, %xmm1 # round 2
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x02
call _key_expansion_128
# aeskeygenassist $0x4, %xmm0, %xmm1 # round 3
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x04
call _key_expansion_128
# aeskeygenassist $0x8, %xmm0, %xmm1 # round 4
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x08
call _key_expansion_128
# aeskeygenassist $0x10, %xmm0, %xmm1 # round 5
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x10
call _key_expansion_128
# aeskeygenassist $0x20, %xmm0, %xmm1 # round 6
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x20
call _key_expansion_128
# aeskeygenassist $0x40, %xmm0, %xmm1 # round 7
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x40
call _key_expansion_128
# aeskeygenassist $0x80, %xmm0, %xmm1 # round 8
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x80
call _key_expansion_128
# aeskeygenassist $0x1b, %xmm0, %xmm1 # round 9
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x1b
call _key_expansion_128
# aeskeygenassist $0x36, %xmm0, %xmm1 # round 10
.byte 0x66, 0x0f, 0x3a, 0xdf, 0xc8, 0x36
call _key_expansion_128
.Ldec_key:
sub $0x10, %rcx
movaps (%rdi), %xmm0
movaps (%rcx), %xmm1
movaps %xmm0, 240(%rcx)
movaps %xmm1, 240(%rdi)
add $0x10, %rdi
lea 240-16(%rcx), %rsi
.align 4
.Ldec_key_loop:
movaps (%rdi), %xmm0
# aesimc %xmm0, %xmm1
.byte 0x66, 0x0f, 0x38, 0xdb, 0xc8
movaps %xmm1, (%rsi)
add $0x10, %rdi
sub $0x10, %rsi
cmp %rcx, %rdi
jb .Ldec_key_loop
xor %rax, %rax
ret
/*
* void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
*/
ENTRY(aesni_enc)
movl 480(KEYP), KLEN # key length
movups (INP), STATE # input
call _aesni_enc1
movups STATE, (OUTP) # output
ret
/*
* _aesni_enc1: internal ABI
* input:
* KEYP: key struct pointer
* KLEN: round count
* STATE: initial state (input)
* output:
* STATE: finial state (output)
* changed:
* KEY
* TKEYP (T1)
*/
_aesni_enc1:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE # round 0
add $0x30, TKEYP
cmp $24, KLEN
jb .Lenc128
lea 0x20(TKEYP), TKEYP
je .Lenc192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps -0x50(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
.align 4
.Lenc192:
movaps -0x40(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps -0x30(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
.align 4
.Lenc128:
movaps -0x20(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps -0x10(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps (TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps 0x10(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps 0x20(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps 0x30(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps 0x40(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps 0x50(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps 0x60(TKEYP), KEY
# aesenc KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
movaps 0x70(TKEYP), KEY
# aesenclast KEY, STATE # last round
.byte 0x66, 0x0f, 0x38, 0xdd, 0xc2
ret
/*
* _aesni_enc4: internal ABI
* input:
* KEYP: key struct pointer
* KLEN: round count
* STATE1: initial state (input)
* STATE2
* STATE3
* STATE4
* output:
* STATE1: finial state (output)
* STATE2
* STATE3
* STATE4
* changed:
* KEY
* TKEYP (T1)
*/
_aesni_enc4:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE1 # round 0
pxor KEY, STATE2
pxor KEY, STATE3
pxor KEY, STATE4
add $0x30, TKEYP
cmp $24, KLEN
jb .L4enc128
lea 0x20(TKEYP), TKEYP
je .L4enc192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps -0x50(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
#.align 4
.L4enc192:
movaps -0x40(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps -0x30(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
#.align 4
.L4enc128:
movaps -0x20(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps -0x10(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps (TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps 0x10(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps 0x20(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps 0x30(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps 0x40(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps 0x50(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps 0x60(TKEYP), KEY
# aesenc KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
# aesenc KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
# aesenc KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdc, 0xea
# aesenc KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
movaps 0x70(TKEYP), KEY
# aesenclast KEY, STATE1 # last round
.byte 0x66, 0x0f, 0x38, 0xdd, 0xc2
# aesenclast KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdd, 0xe2
# aesenclast KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdd, 0xea
# aesenclast KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdd, 0xf2
ret
/*
* void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
*/
ENTRY(aesni_dec)
mov 480(KEYP), KLEN # key length
add $240, KEYP
movups (INP), STATE # input
call _aesni_dec1
movups STATE, (OUTP) #output
ret
/*
* _aesni_dec1: internal ABI
* input:
* KEYP: key struct pointer
* KLEN: key length
* STATE: initial state (input)
* output:
* STATE: finial state (output)
* changed:
* KEY
* TKEYP (T1)
*/
_aesni_dec1:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE # round 0
add $0x30, TKEYP
cmp $24, KLEN
jb .Ldec128
lea 0x20(TKEYP), TKEYP
je .Ldec192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps -0x50(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
.align 4
.Ldec192:
movaps -0x40(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps -0x30(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
.align 4
.Ldec128:
movaps -0x20(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps -0x10(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps (TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps 0x10(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps 0x20(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps 0x30(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps 0x40(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps 0x50(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps 0x60(TKEYP), KEY
# aesdec KEY, STATE
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
movaps 0x70(TKEYP), KEY
# aesdeclast KEY, STATE # last round
.byte 0x66, 0x0f, 0x38, 0xdf, 0xc2
ret
/*
* _aesni_dec4: internal ABI
* input:
* KEYP: key struct pointer
* KLEN: key length
* STATE1: initial state (input)
* STATE2
* STATE3
* STATE4
* output:
* STATE1: finial state (output)
* STATE2
* STATE3
* STATE4
* changed:
* KEY
* TKEYP (T1)
*/
_aesni_dec4:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE1 # round 0
pxor KEY, STATE2
pxor KEY, STATE3
pxor KEY, STATE4
add $0x30, TKEYP
cmp $24, KLEN
jb .L4dec128
lea 0x20(TKEYP), TKEYP
je .L4dec192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps -0x50(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
.align 4
.L4dec192:
movaps -0x40(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps -0x30(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
.align 4
.L4dec128:
movaps -0x20(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps -0x10(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps (TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps 0x10(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps 0x20(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps 0x30(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps 0x40(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps 0x50(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps 0x60(TKEYP), KEY
# aesdec KEY, STATE1
.byte 0x66, 0x0f, 0x38, 0xde, 0xc2
# aesdec KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xde, 0xe2
# aesdec KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xde, 0xea
# aesdec KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xde, 0xf2
movaps 0x70(TKEYP), KEY
# aesdeclast KEY, STATE1 # last round
.byte 0x66, 0x0f, 0x38, 0xdf, 0xc2
# aesdeclast KEY, STATE2
.byte 0x66, 0x0f, 0x38, 0xdf, 0xe2
# aesdeclast KEY, STATE3
.byte 0x66, 0x0f, 0x38, 0xdf, 0xea
# aesdeclast KEY, STATE4
.byte 0x66, 0x0f, 0x38, 0xdf, 0xf2
ret
/*
* void aesni_ecb_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len)
*/
ENTRY(aesni_ecb_enc)
test LEN, LEN # check length
jz .Lecb_enc_ret
mov 480(KEYP), KLEN
cmp $16, LEN
jb .Lecb_enc_ret
cmp $64, LEN
jb .Lecb_enc_loop1
.align 4
.Lecb_enc_loop4:
movups (INP), STATE1
movups 0x10(INP), STATE2
movups 0x20(INP), STATE3
movups 0x30(INP), STATE4
call _aesni_enc4
movups STATE1, (OUTP)
movups STATE2, 0x10(OUTP)
movups STATE3, 0x20(OUTP)
movups STATE4, 0x30(OUTP)
sub $64, LEN
add $64, INP
add $64, OUTP
cmp $64, LEN
jge .Lecb_enc_loop4
cmp $16, LEN
jb .Lecb_enc_ret
.align 4
.Lecb_enc_loop1:
movups (INP), STATE1
call _aesni_enc1
movups STATE1, (OUTP)
sub $16, LEN
add $16, INP
add $16, OUTP
cmp $16, LEN
jge .Lecb_enc_loop1
.Lecb_enc_ret:
ret
/*
* void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len);
*/
ENTRY(aesni_ecb_dec)
test LEN, LEN
jz .Lecb_dec_ret
mov 480(KEYP), KLEN
add $240, KEYP
cmp $16, LEN
jb .Lecb_dec_ret
cmp $64, LEN
jb .Lecb_dec_loop1
.align 4
.Lecb_dec_loop4:
movups (INP), STATE1
movups 0x10(INP), STATE2
movups 0x20(INP), STATE3
movups 0x30(INP), STATE4
call _aesni_dec4
movups STATE1, (OUTP)
movups STATE2, 0x10(OUTP)
movups STATE3, 0x20(OUTP)
movups STATE4, 0x30(OUTP)
sub $64, LEN
add $64, INP
add $64, OUTP
cmp $64, LEN
jge .Lecb_dec_loop4
cmp $16, LEN
jb .Lecb_dec_ret
.align 4
.Lecb_dec_loop1:
movups (INP), STATE1
call _aesni_dec1
movups STATE1, (OUTP)
sub $16, LEN
add $16, INP
add $16, OUTP
cmp $16, LEN
jge .Lecb_dec_loop1
.Lecb_dec_ret:
ret
/*
* void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
ENTRY(aesni_cbc_enc)
cmp $16, LEN
jb .Lcbc_enc_ret
mov 480(KEYP), KLEN
movups (IVP), STATE # load iv as initial state
.align 4
.Lcbc_enc_loop:
movups (INP), IN # load input
pxor IN, STATE
call _aesni_enc1
movups STATE, (OUTP) # store output
sub $16, LEN
add $16, INP
add $16, OUTP
cmp $16, LEN
jge .Lcbc_enc_loop
movups STATE, (IVP)
.Lcbc_enc_ret:
ret
/*
* void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
ENTRY(aesni_cbc_dec)
cmp $16, LEN
jb .Lcbc_dec_just_ret
mov 480(KEYP), KLEN
add $240, KEYP
movups (IVP), IV
cmp $64, LEN
jb .Lcbc_dec_loop1
.align 4
.Lcbc_dec_loop4:
movups (INP), IN1
movaps IN1, STATE1
movups 0x10(INP), IN2
movaps IN2, STATE2
movups 0x20(INP), IN3
movaps IN3, STATE3
movups 0x30(INP), IN4
movaps IN4, STATE4
call _aesni_dec4
pxor IV, STATE1
pxor IN1, STATE2
pxor IN2, STATE3
pxor IN3, STATE4
movaps IN4, IV
movups STATE1, (OUTP)
movups STATE2, 0x10(OUTP)
movups STATE3, 0x20(OUTP)
movups STATE4, 0x30(OUTP)
sub $64, LEN
add $64, INP
add $64, OUTP
cmp $64, LEN
jge .Lcbc_dec_loop4
cmp $16, LEN
jb .Lcbc_dec_ret
.align 4
.Lcbc_dec_loop1:
movups (INP), IN
movaps IN, STATE
call _aesni_dec1
pxor IV, STATE
movups STATE, (OUTP)
movaps IN, IV
sub $16, LEN
add $16, INP
add $16, OUTP
cmp $16, LEN
jge .Lcbc_dec_loop1
.Lcbc_dec_ret:
movups IV, (IVP)
.Lcbc_dec_just_ret:
ret
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