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Diffstat (limited to 'arch/x86/crypto/aesni-intel_asm.S')
-rw-r--r--arch/x86/crypto/aesni-intel_asm.S197
1 files changed, 167 insertions, 30 deletions
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index aafced54df64..f592e03dc375 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -20,6 +20,9 @@
* Wajdi Feghali (wajdi.k.feghali@intel.com)
* Copyright (c) 2010, Intel Corporation.
*
+ * Ported x86_64 version to x86:
+ * Author: Mathias Krause <minipli@googlemail.com>
+ *
* 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
@@ -95,12 +98,16 @@ enc: .octa 0x2
#define IN IN1
#define KEY %xmm2
#define IV %xmm3
+
#define BSWAP_MASK %xmm10
#define CTR %xmm11
#define INC %xmm12
+#ifdef __x86_64__
+#define AREG %rax
#define KEYP %rdi
#define OUTP %rsi
+#define UKEYP OUTP
#define INP %rdx
#define LEN %rcx
#define IVP %r8
@@ -109,6 +116,18 @@ enc: .octa 0x2
#define TKEYP T1
#define T2 %r11
#define TCTR_LOW T2
+#else
+#define AREG %eax
+#define KEYP %edi
+#define OUTP AREG
+#define UKEYP OUTP
+#define INP %edx
+#define LEN %esi
+#define IVP %ebp
+#define KLEN %ebx
+#define T1 %ecx
+#define TKEYP T1
+#endif
/* GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0)
@@ -1247,10 +1266,11 @@ _key_expansion_256a:
shufps $0b10001100, %xmm0, %xmm4
pxor %xmm4, %xmm0
pxor %xmm1, %xmm0
- movaps %xmm0, (%rcx)
- add $0x10, %rcx
+ movaps %xmm0, (TKEYP)
+ add $0x10, TKEYP
ret
+.align 4
_key_expansion_192a:
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
@@ -1268,12 +1288,13 @@ _key_expansion_192a:
movaps %xmm0, %xmm1
shufps $0b01000100, %xmm0, %xmm6
- movaps %xmm6, (%rcx)
+ movaps %xmm6, (TKEYP)
shufps $0b01001110, %xmm2, %xmm1
- movaps %xmm1, 16(%rcx)
- add $0x20, %rcx
+ movaps %xmm1, 0x10(TKEYP)
+ add $0x20, TKEYP
ret
+.align 4
_key_expansion_192b:
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
@@ -1288,10 +1309,11 @@ _key_expansion_192b:
pxor %xmm3, %xmm2
pxor %xmm5, %xmm2
- movaps %xmm0, (%rcx)
- add $0x10, %rcx
+ movaps %xmm0, (TKEYP)
+ add $0x10, TKEYP
ret
+.align 4
_key_expansion_256b:
pshufd $0b10101010, %xmm1, %xmm1
shufps $0b00010000, %xmm2, %xmm4
@@ -1299,8 +1321,8 @@ _key_expansion_256b:
shufps $0b10001100, %xmm2, %xmm4
pxor %xmm4, %xmm2
pxor %xmm1, %xmm2
- movaps %xmm2, (%rcx)
- add $0x10, %rcx
+ movaps %xmm2, (TKEYP)
+ add $0x10, TKEYP
ret
/*
@@ -1308,17 +1330,23 @@ _key_expansion_256b:
* 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)
+#ifndef __x86_64__
+ pushl KEYP
+ movl 8(%esp), KEYP # ctx
+ movl 12(%esp), UKEYP # in_key
+ movl 16(%esp), %edx # key_len
+#endif
+ movups (UKEYP), %xmm0 # user key (first 16 bytes)
+ movaps %xmm0, (KEYP)
+ lea 0x10(KEYP), TKEYP # key addr
+ movl %edx, 480(KEYP)
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
+ movups 0x10(UKEYP), %xmm2 # other user key
+ movaps %xmm2, (TKEYP)
+ add $0x10, TKEYP
AESKEYGENASSIST 0x1 %xmm2 %xmm1 # round 1
call _key_expansion_256a
AESKEYGENASSIST 0x1 %xmm0 %xmm1
@@ -1347,7 +1375,7 @@ ENTRY(aesni_set_key)
call _key_expansion_256a
jmp .Ldec_key
.Lenc_key192:
- movq 0x10(%rsi), %xmm2 # other user key
+ movq 0x10(UKEYP), %xmm2 # other user key
AESKEYGENASSIST 0x1 %xmm2 %xmm1 # round 1
call _key_expansion_192a
AESKEYGENASSIST 0x2 %xmm2 %xmm1 # round 2
@@ -1387,33 +1415,47 @@ ENTRY(aesni_set_key)
AESKEYGENASSIST 0x36 %xmm0 %xmm1 # round 10
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
+ sub $0x10, TKEYP
+ movaps (KEYP), %xmm0
+ movaps (TKEYP), %xmm1
+ movaps %xmm0, 240(TKEYP)
+ movaps %xmm1, 240(KEYP)
+ add $0x10, KEYP
+ lea 240-16(TKEYP), UKEYP
.align 4
.Ldec_key_loop:
- movaps (%rdi), %xmm0
+ movaps (KEYP), %xmm0
AESIMC %xmm0 %xmm1
- movaps %xmm1, (%rsi)
- add $0x10, %rdi
- sub $0x10, %rsi
- cmp %rcx, %rdi
+ movaps %xmm1, (UKEYP)
+ add $0x10, KEYP
+ sub $0x10, UKEYP
+ cmp TKEYP, KEYP
jb .Ldec_key_loop
- xor %rax, %rax
+ xor AREG, AREG
+#ifndef __x86_64__
+ popl KEYP
+#endif
ret
/*
* void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
*/
ENTRY(aesni_enc)
+#ifndef __x86_64__
+ pushl KEYP
+ pushl KLEN
+ movl 12(%esp), KEYP
+ movl 16(%esp), OUTP
+ movl 20(%esp), INP
+#endif
movl 480(KEYP), KLEN # key length
movups (INP), STATE # input
call _aesni_enc1
movups STATE, (OUTP) # output
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+#endif
ret
/*
@@ -1428,6 +1470,7 @@ ENTRY(aesni_enc)
* KEY
* TKEYP (T1)
*/
+.align 4
_aesni_enc1:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
@@ -1490,6 +1533,7 @@ _aesni_enc1:
* KEY
* TKEYP (T1)
*/
+.align 4
_aesni_enc4:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
@@ -1583,11 +1627,22 @@ _aesni_enc4:
* void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
*/
ENTRY(aesni_dec)
+#ifndef __x86_64__
+ pushl KEYP
+ pushl KLEN
+ movl 12(%esp), KEYP
+ movl 16(%esp), OUTP
+ movl 20(%esp), INP
+#endif
mov 480(KEYP), KLEN # key length
add $240, KEYP
movups (INP), STATE # input
call _aesni_dec1
movups STATE, (OUTP) #output
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+#endif
ret
/*
@@ -1602,6 +1657,7 @@ ENTRY(aesni_dec)
* KEY
* TKEYP (T1)
*/
+.align 4
_aesni_dec1:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
@@ -1664,6 +1720,7 @@ _aesni_dec1:
* KEY
* TKEYP (T1)
*/
+.align 4
_aesni_dec4:
movaps (KEYP), KEY # key
mov KEYP, TKEYP
@@ -1758,6 +1815,15 @@ _aesni_dec4:
* size_t len)
*/
ENTRY(aesni_ecb_enc)
+#ifndef __x86_64__
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl 16(%esp), KEYP
+ movl 20(%esp), OUTP
+ movl 24(%esp), INP
+ movl 28(%esp), LEN
+#endif
test LEN, LEN # check length
jz .Lecb_enc_ret
mov 480(KEYP), KLEN
@@ -1794,6 +1860,11 @@ ENTRY(aesni_ecb_enc)
cmp $16, LEN
jge .Lecb_enc_loop1
.Lecb_enc_ret:
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+#endif
ret
/*
@@ -1801,6 +1872,15 @@ ENTRY(aesni_ecb_enc)
* size_t len);
*/
ENTRY(aesni_ecb_dec)
+#ifndef __x86_64__
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl 16(%esp), KEYP
+ movl 20(%esp), OUTP
+ movl 24(%esp), INP
+ movl 28(%esp), LEN
+#endif
test LEN, LEN
jz .Lecb_dec_ret
mov 480(KEYP), KLEN
@@ -1838,6 +1918,11 @@ ENTRY(aesni_ecb_dec)
cmp $16, LEN
jge .Lecb_dec_loop1
.Lecb_dec_ret:
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+#endif
ret
/*
@@ -1845,6 +1930,17 @@ ENTRY(aesni_ecb_dec)
* size_t len, u8 *iv)
*/
ENTRY(aesni_cbc_enc)
+#ifndef __x86_64__
+ pushl IVP
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl 20(%esp), KEYP
+ movl 24(%esp), OUTP
+ movl 28(%esp), INP
+ movl 32(%esp), LEN
+ movl 36(%esp), IVP
+#endif
cmp $16, LEN
jb .Lcbc_enc_ret
mov 480(KEYP), KLEN
@@ -1862,6 +1958,12 @@ ENTRY(aesni_cbc_enc)
jge .Lcbc_enc_loop
movups STATE, (IVP)
.Lcbc_enc_ret:
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+ popl IVP
+#endif
ret
/*
@@ -1869,6 +1971,17 @@ ENTRY(aesni_cbc_enc)
* size_t len, u8 *iv)
*/
ENTRY(aesni_cbc_dec)
+#ifndef __x86_64__
+ pushl IVP
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl 20(%esp), KEYP
+ movl 24(%esp), OUTP
+ movl 28(%esp), INP
+ movl 32(%esp), LEN
+ movl 36(%esp), IVP
+#endif
cmp $16, LEN
jb .Lcbc_dec_just_ret
mov 480(KEYP), KLEN
@@ -1882,16 +1995,30 @@ ENTRY(aesni_cbc_dec)
movaps IN1, STATE1
movups 0x10(INP), IN2
movaps IN2, STATE2
+#ifdef __x86_64__
movups 0x20(INP), IN3
movaps IN3, STATE3
movups 0x30(INP), IN4
movaps IN4, STATE4
+#else
+ movups 0x20(INP), IN1
+ movaps IN1, STATE3
+ movups 0x30(INP), IN2
+ movaps IN2, STATE4
+#endif
call _aesni_dec4
pxor IV, STATE1
+#ifdef __x86_64__
pxor IN1, STATE2
pxor IN2, STATE3
pxor IN3, STATE4
movaps IN4, IV
+#else
+ pxor (INP), STATE2
+ pxor 0x10(INP), STATE3
+ pxor IN1, STATE4
+ movaps IN2, IV
+#endif
movups STATE1, (OUTP)
movups STATE2, 0x10(OUTP)
movups STATE3, 0x20(OUTP)
@@ -1919,8 +2046,15 @@ ENTRY(aesni_cbc_dec)
.Lcbc_dec_ret:
movups IV, (IVP)
.Lcbc_dec_just_ret:
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+ popl IVP
+#endif
ret
+#ifdef __x86_64__
.align 16
.Lbswap_mask:
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
@@ -1936,6 +2070,7 @@ ENTRY(aesni_cbc_dec)
* INC: == 1, in little endian
* BSWAP_MASK == endian swapping mask
*/
+.align 4
_aesni_inc_init:
movaps .Lbswap_mask, BSWAP_MASK
movaps IV, CTR
@@ -1960,6 +2095,7 @@ _aesni_inc_init:
* CTR: == output IV, in little endian
* TCTR_LOW: == lower qword of CTR
*/
+.align 4
_aesni_inc:
paddq INC, CTR
add $1, TCTR_LOW
@@ -2031,3 +2167,4 @@ ENTRY(aesni_ctr_enc)
movups IV, (IVP)
.Lctr_enc_just_ret:
ret
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 08:45:36 +0000