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store non volatile xmm6-15 for aesni on microsoft

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This commit is contained in:
toddouska 2014-06-04 15:00:42 -07:00
parent 2494217a87
commit d728474ef3
1 changed files with 69 additions and 0 deletions
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69
ctaocrypt/src/aes_asm.asm
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@ -47,6 +47,7 @@ AES_CBC_encrypt PROC
mov rax,rdi
mov r11,rsi
; convert to what we had for att&t convention
mov rdi,rcx
mov rsi,rdx
mov rdx,r8
@ -93,6 +94,7 @@ LAST:
aesenclast xmm1,xmm2
movdqu [rsi],xmm1
jne LOOP_1
; restore non volatile rdi,rsi
mov rdi,rax
mov rsi,r11
ret
@ -121,6 +123,7 @@ AES_CBC_decrypt PROC
mov rax,rdi
mov r11,rsi
; convert to what we had for att&t convention
mov rdi,rcx
mov rsi,rdx
mov rdx,r8
@ -128,6 +131,17 @@ AES_CBC_decrypt PROC
mov r8,[rsp+40]
mov r9d,[rsp+48]
; on microsoft xmm6-xmm15 are non volaitle, let's save on stack and restore at end
sub rsp,8+8*64 ; 8 = align stack , 8 xmm6-12,15 8 bytes each
movdqa xmm6, [rsp+0]
movdqa xmm7, [rsp+16]
movdqa xmm8, [rsp+32]
movdqa xmm9, [rsp+48]
movdqa xmm10, [rsp+64]
movdqa xmm11, [rsp+80]
movdqa xmm12, [rsp+96]
movdqa xmm15, [rsp+112]
mov r10,rcx
shr rcx,4
shl r10,60
@ -286,8 +300,19 @@ DLAST_4_2:
dec r10
jne DLOOP_4_2
DEND_4:
; restore non volatile rdi,rsi
mov rdi,rax
mov rsi,r11
; restore non volatile xmms from stack
movdqa [rsp+0], xmm6
movdqa [rsp+16], xmm7
movdqa [rsp+32], xmm8
movdqa [rsp+48], xmm9
movdqa [rsp+64], xmm10
movdqa [rsp+80], xmm11
movdqa [rsp+96], xmm12
movdqa [rsp+112], xmm15
add rsp,8+8*64 ; 8 = align stack , 8 xmm6-12,15 8 bytes each
ret
AES_CBC_decrypt ENDP
@ -310,12 +335,21 @@ AES_ECB_encrypt PROC
mov rax,rdi
mov r11,rsi
; convert to what we had for att&t convention
mov rdi,rcx
mov rsi,rdx
mov rdx,r8
mov rcx,r9
mov r8d,[rsp+40]
; on microsoft xmm6-xmm15 are non volaitle, let's save on stack and restore at end
sub rsp,8+4*64 ; 8 = align stack , 4 xmm9-12, 8 bytes each
movdqa xmm9, [rsp+0]
movdqa xmm10, [rsp+16]
movdqa xmm11, [rsp+32]
movdqa xmm12, [rsp+48]
mov r10,rdx
shr rdx,4
shl r10,60
@ -458,8 +492,15 @@ EECB_LAST_4_2:
dec r10
jne EECB_LOOP_4_2
EECB_END_4:
; restore non volatile rdi,rsi
mov rdi,rax
mov rsi,r11
; restore non volatile xmms from stack
movdqa [rsp+0], xmm9
movdqa [rsp+16], xmm10
movdqa [rsp+32], xmm11
movdqa [rsp+48], xmm12
add rsp,8+4*64 ; 8 = align stack , 4 xmm9-12 8 bytes each
ret
AES_ECB_encrypt ENDP
@ -482,12 +523,20 @@ AES_ECB_decrypt PROC
mov rax,rdi
mov r11,rsi
; convert to what we had for att&t convention
mov rdi,rcx
mov rsi,rdx
mov rdx,r8
mov rcx,r9
mov r8d,[rsp+40]
; on microsoft xmm6-xmm15 are non volaitle, let's save on stack and restore at end
sub rsp,8+4*64 ; 8 = align stack , 4 xmm9-12, 8 bytes each
movdqa xmm9, [rsp+0]
movdqa xmm10, [rsp+16]
movdqa xmm11, [rsp+32]
movdqa xmm12, [rsp+48]
mov r10,rdx
shr rdx,4
shl r10,60
@ -630,8 +679,15 @@ DECB_LAST_4_2:
dec r10
jne DECB_LOOP_4_2
DECB_END_4:
; restore non volatile rdi,rsi
mov rdi,rax
mov rsi,r11
; restore non volatile xmms from stack
movdqa [rsp+0], xmm9
movdqa [rsp+16], xmm10
movdqa [rsp+32], xmm11
movdqa [rsp+48], xmm12
add rsp,8+4*64 ; 8 = align stack , 4 xmm9-12 8 bytes each
ret
AES_ECB_decrypt ENDP
@ -651,6 +707,7 @@ AES_128_Key_Expansion PROC
mov rax,rdi
mov r11,rsi
; convert to what we had for att&t convention
mov rdi,rcx
mov rsi,rdx
@ -697,6 +754,7 @@ ASSISTS:
aeskeygenassist xmm2,xmm1,36h
call PREPARE_ROUNDKEY_128
movdqa 160[rsi],xmm1
; restore non volatile rdi,rsi
mov rdi,rax
mov rsi,r11
ret
@ -727,9 +785,14 @@ AES_192_Key_Expansion PROC
mov rax,rdi
mov r11,rsi
; convert to what we had for att&t convention
mov rdi,rcx
mov rsi,rdx
; on microsoft xmm6-xmm15 are non volaitle, let's save on stack and restore at end
sub rsp,8+1*64 ; 8 = align stack , 1 xmm6, 8 bytes each
movdqa xmm6, [rsp+0]
movdqu xmm1,[rdi]
movdqu xmm3,16[rdi]
movdqa [rsi],xmm1
@ -786,8 +849,12 @@ AES_192_Key_Expansion PROC
call PREPARE_ROUNDKEY_192
movdqa 192[rsi],xmm1
movdqa 208[rsi],xmm3
; restore non volatile rdi,rsi
mov rdi,rax
mov rsi,r11
; restore non volatile xmms from stack
movdqa [rsp+0], xmm6
add rsp,8+1*64 ; 8 = align stack , 1 xmm6 8 bytes each
ret
PREPARE_ROUNDKEY_192:
@ -822,6 +889,7 @@ AES_256_Key_Expansion PROC
mov rax,rdi
mov r11,rsi
; convert to what we had for att&t convention
mov rdi,rcx
mov rsi,rdx
@ -871,6 +939,7 @@ AES_256_Key_Expansion PROC
call MAKE_RK256_a
movdqa 224[rsi],xmm1
; restore non volatile rdi,rsi
mov rdi,rax
mov rsi,r11
ret