Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 748 insertions, 0 deletions

diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
new file mode 100644
index 0000000000..ad7f4c8916
--- /dev/null
+++ b/arch/x86/crypto/aegis128-aesni-asm.S
@@ -0,0 +1,748 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AES-NI + SSE2 implementation of AEGIS-128
+ *
+ * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com>
+ * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+#include <asm/frame.h>
+
+#define STATE0	%xmm0
+#define STATE1	%xmm1
+#define STATE2	%xmm2
+#define STATE3	%xmm3
+#define STATE4	%xmm4
+#define KEY	%xmm5
+#define MSG	%xmm5
+#define T0	%xmm6
+#define T1	%xmm7
+
+#define STATEP	%rdi
+#define LEN	%rsi
+#define SRC	%rdx
+#define DST	%rcx
+
+.section .rodata.cst16.aegis128_const, "aM", @progbits, 32
+.align 16
+.Laegis128_const_0:
+	.byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d
+	.byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62
+.Laegis128_const_1:
+	.byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1
+	.byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd
+
+.section .rodata.cst16.aegis128_counter, "aM", @progbits, 16
+.align 16
+.Laegis128_counter:
+	.byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
+	.byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+
+.text
+
+/*
+ * aegis128_update
+ * input:
+ *   STATE[0-4] - input state
+ * output:
+ *   STATE[0-4] - output state (shifted positions)
+ * changed:
+ *   T0
+ */
+.macro aegis128_update
+	movdqa STATE4, T0
+	aesenc STATE0, STATE4
+	aesenc STATE1, STATE0
+	aesenc STATE2, STATE1
+	aesenc STATE3, STATE2
+	aesenc T0,     STATE3
+.endm
+
+/*
+ * __load_partial: internal ABI
+ * input:
+ *   LEN - bytes
+ *   SRC - src
+ * output:
+ *   MSG  - message block
+ * changed:
+ *   T0
+ *   %r8
+ *   %r9
+ */
+SYM_FUNC_START_LOCAL(__load_partial)
+	xor %r9d, %r9d
+	pxor MSG, MSG
+
+	mov LEN, %r8
+	and $0x1, %r8
+	jz .Lld_partial_1
+
+	mov LEN, %r8
+	and $0x1E, %r8
+	add SRC, %r8
+	mov (%r8), %r9b
+
+.Lld_partial_1:
+	mov LEN, %r8
+	and $0x2, %r8
+	jz .Lld_partial_2
+
+	mov LEN, %r8
+	and $0x1C, %r8
+	add SRC, %r8
+	shl $0x10, %r9
+	mov (%r8), %r9w
+
+.Lld_partial_2:
+	mov LEN, %r8
+	and $0x4, %r8
+	jz .Lld_partial_4
+
+	mov LEN, %r8
+	and $0x18, %r8
+	add SRC, %r8
+	shl $32, %r9
+	mov (%r8), %r8d
+	xor %r8, %r9
+
+.Lld_partial_4:
+	movq %r9, MSG
+
+	mov LEN, %r8
+	and $0x8, %r8
+	jz .Lld_partial_8
+
+	mov LEN, %r8
+	and $0x10, %r8
+	add SRC, %r8
+	pslldq $8, MSG
+	movq (%r8), T0
+	pxor T0, MSG
+
+.Lld_partial_8:
+	RET
+SYM_FUNC_END(__load_partial)
+
+/*
+ * __store_partial: internal ABI
+ * input:
+ *   LEN - bytes
+ *   DST - dst
+ * output:
+ *   T0   - message block
+ * changed:
+ *   %r8
+ *   %r9
+ *   %r10
+ */
+SYM_FUNC_START_LOCAL(__store_partial)
+	mov LEN, %r8
+	mov DST, %r9
+
+	movq T0, %r10
+
+	cmp $8, %r8
+	jl .Lst_partial_8
+
+	mov %r10, (%r9)
+	psrldq $8, T0
+	movq T0, %r10
+
+	sub $8, %r8
+	add $8, %r9
+
+.Lst_partial_8:
+	cmp $4, %r8
+	jl .Lst_partial_4
+
+	mov %r10d, (%r9)
+	shr $32, %r10
+
+	sub $4, %r8
+	add $4, %r9
+
+.Lst_partial_4:
+	cmp $2, %r8
+	jl .Lst_partial_2
+
+	mov %r10w, (%r9)
+	shr $0x10, %r10
+
+	sub $2, %r8
+	add $2, %r9
+
+.Lst_partial_2:
+	cmp $1, %r8
+	jl .Lst_partial_1
+
+	mov %r10b, (%r9)
+
+.Lst_partial_1:
+	RET
+SYM_FUNC_END(__store_partial)
+
+/*
+ * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv);
+ */
+SYM_FUNC_START(crypto_aegis128_aesni_init)
+	FRAME_BEGIN
+
+	/* load IV: */
+	movdqu (%rdx), T1
+
+	/* load key: */
+	movdqa (%rsi), KEY
+	pxor KEY, T1
+	movdqa T1, STATE0
+	movdqa KEY, STATE3
+	movdqa KEY, STATE4
+
+	/* load the constants: */
+	movdqa .Laegis128_const_0(%rip), STATE2
+	movdqa .Laegis128_const_1(%rip), STATE1
+	pxor STATE2, STATE3
+	pxor STATE1, STATE4
+
+	/* update 10 times with KEY / KEY xor IV: */
+	aegis128_update; pxor KEY, STATE4
+	aegis128_update; pxor T1,  STATE3
+	aegis128_update; pxor KEY, STATE2
+	aegis128_update; pxor T1,  STATE1
+	aegis128_update; pxor KEY, STATE0
+	aegis128_update; pxor T1,  STATE4
+	aegis128_update; pxor KEY, STATE3
+	aegis128_update; pxor T1,  STATE2
+	aegis128_update; pxor KEY, STATE1
+	aegis128_update; pxor T1,  STATE0
+
+	/* store the state: */
+	movdqu STATE0, 0x00(STATEP)
+	movdqu STATE1, 0x10(STATEP)
+	movdqu STATE2, 0x20(STATEP)
+	movdqu STATE3, 0x30(STATEP)
+	movdqu STATE4, 0x40(STATEP)
+
+	FRAME_END
+	RET
+SYM_FUNC_END(crypto_aegis128_aesni_init)
+
+/*
+ * void crypto_aegis128_aesni_ad(void *state, unsigned int length,
+ *                               const void *data);
+ */
+SYM_FUNC_START(crypto_aegis128_aesni_ad)
+	FRAME_BEGIN
+
+	cmp $0x10, LEN
+	jb .Lad_out
+
+	/* load the state: */
+	movdqu 0x00(STATEP), STATE0
+	movdqu 0x10(STATEP), STATE1
+	movdqu 0x20(STATEP), STATE2
+	movdqu 0x30(STATEP), STATE3
+	movdqu 0x40(STATEP), STATE4
+
+	mov SRC, %r8
+	and $0xF, %r8
+	jnz .Lad_u_loop
+
+.align 8
+.Lad_a_loop:
+	movdqa 0x00(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE4
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_1
+
+	movdqa 0x10(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE3
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_2
+
+	movdqa 0x20(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE2
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_3
+
+	movdqa 0x30(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE1
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_4
+
+	movdqa 0x40(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE0
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_0
+
+	add $0x50, SRC
+	jmp .Lad_a_loop
+
+.align 8
+.Lad_u_loop:
+	movdqu 0x00(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE4
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_1
+
+	movdqu 0x10(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE3
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_2
+
+	movdqu 0x20(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE2
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_3
+
+	movdqu 0x30(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE1
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_4
+
+	movdqu 0x40(SRC), MSG
+	aegis128_update
+	pxor MSG, STATE0
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lad_out_0
+
+	add $0x50, SRC
+	jmp .Lad_u_loop
+
+	/* store the state: */
+.Lad_out_0:
+	movdqu STATE0, 0x00(STATEP)
+	movdqu STATE1, 0x10(STATEP)
+	movdqu STATE2, 0x20(STATEP)
+	movdqu STATE3, 0x30(STATEP)
+	movdqu STATE4, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lad_out_1:
+	movdqu STATE4, 0x00(STATEP)
+	movdqu STATE0, 0x10(STATEP)
+	movdqu STATE1, 0x20(STATEP)
+	movdqu STATE2, 0x30(STATEP)
+	movdqu STATE3, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lad_out_2:
+	movdqu STATE3, 0x00(STATEP)
+	movdqu STATE4, 0x10(STATEP)
+	movdqu STATE0, 0x20(STATEP)
+	movdqu STATE1, 0x30(STATEP)
+	movdqu STATE2, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lad_out_3:
+	movdqu STATE2, 0x00(STATEP)
+	movdqu STATE3, 0x10(STATEP)
+	movdqu STATE4, 0x20(STATEP)
+	movdqu STATE0, 0x30(STATEP)
+	movdqu STATE1, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lad_out_4:
+	movdqu STATE1, 0x00(STATEP)
+	movdqu STATE2, 0x10(STATEP)
+	movdqu STATE3, 0x20(STATEP)
+	movdqu STATE4, 0x30(STATEP)
+	movdqu STATE0, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lad_out:
+	FRAME_END
+	RET
+SYM_FUNC_END(crypto_aegis128_aesni_ad)
+
+.macro encrypt_block a s0 s1 s2 s3 s4 i
+	movdq\a (\i * 0x10)(SRC), MSG
+	movdqa MSG, T0
+	pxor \s1, T0
+	pxor \s4, T0
+	movdqa \s2, T1
+	pand \s3, T1
+	pxor T1, T0
+	movdq\a T0, (\i * 0x10)(DST)
+
+	aegis128_update
+	pxor MSG, \s4
+
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Lenc_out_\i
+.endm
+
+/*
+ * void crypto_aegis128_aesni_enc(void *state, unsigned int length,
+ *                                const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc)
+	FRAME_BEGIN
+
+	cmp $0x10, LEN
+	jb .Lenc_out
+
+	/* load the state: */
+	movdqu 0x00(STATEP), STATE0
+	movdqu 0x10(STATEP), STATE1
+	movdqu 0x20(STATEP), STATE2
+	movdqu 0x30(STATEP), STATE3
+	movdqu 0x40(STATEP), STATE4
+
+	mov  SRC,  %r8
+	or   DST,  %r8
+	and $0xF, %r8
+	jnz .Lenc_u_loop
+
+.align 8
+.Lenc_a_loop:
+	encrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0
+	encrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1
+	encrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2
+	encrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3
+	encrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+	add $0x50, SRC
+	add $0x50, DST
+	jmp .Lenc_a_loop
+
+.align 8
+.Lenc_u_loop:
+	encrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0
+	encrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1
+	encrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2
+	encrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3
+	encrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+	add $0x50, SRC
+	add $0x50, DST
+	jmp .Lenc_u_loop
+
+	/* store the state: */
+.Lenc_out_0:
+	movdqu STATE4, 0x00(STATEP)
+	movdqu STATE0, 0x10(STATEP)
+	movdqu STATE1, 0x20(STATEP)
+	movdqu STATE2, 0x30(STATEP)
+	movdqu STATE3, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lenc_out_1:
+	movdqu STATE3, 0x00(STATEP)
+	movdqu STATE4, 0x10(STATEP)
+	movdqu STATE0, 0x20(STATEP)
+	movdqu STATE1, 0x30(STATEP)
+	movdqu STATE2, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lenc_out_2:
+	movdqu STATE2, 0x00(STATEP)
+	movdqu STATE3, 0x10(STATEP)
+	movdqu STATE4, 0x20(STATEP)
+	movdqu STATE0, 0x30(STATEP)
+	movdqu STATE1, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lenc_out_3:
+	movdqu STATE1, 0x00(STATEP)
+	movdqu STATE2, 0x10(STATEP)
+	movdqu STATE3, 0x20(STATEP)
+	movdqu STATE4, 0x30(STATEP)
+	movdqu STATE0, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lenc_out_4:
+	movdqu STATE0, 0x00(STATEP)
+	movdqu STATE1, 0x10(STATEP)
+	movdqu STATE2, 0x20(STATEP)
+	movdqu STATE3, 0x30(STATEP)
+	movdqu STATE4, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Lenc_out:
+	FRAME_END
+	RET
+SYM_FUNC_END(crypto_aegis128_aesni_enc)
+
+/*
+ * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length,
+ *                                     const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc_tail)
+	FRAME_BEGIN
+
+	/* load the state: */
+	movdqu 0x00(STATEP), STATE0
+	movdqu 0x10(STATEP), STATE1
+	movdqu 0x20(STATEP), STATE2
+	movdqu 0x30(STATEP), STATE3
+	movdqu 0x40(STATEP), STATE4
+
+	/* encrypt message: */
+	call __load_partial
+
+	movdqa MSG, T0
+	pxor STATE1, T0
+	pxor STATE4, T0
+	movdqa STATE2, T1
+	pand STATE3, T1
+	pxor T1, T0
+
+	call __store_partial
+
+	aegis128_update
+	pxor MSG, STATE4
+
+	/* store the state: */
+	movdqu STATE4, 0x00(STATEP)
+	movdqu STATE0, 0x10(STATEP)
+	movdqu STATE1, 0x20(STATEP)
+	movdqu STATE2, 0x30(STATEP)
+	movdqu STATE3, 0x40(STATEP)
+
+	FRAME_END
+	RET
+SYM_FUNC_END(crypto_aegis128_aesni_enc_tail)
+
+.macro decrypt_block a s0 s1 s2 s3 s4 i
+	movdq\a (\i * 0x10)(SRC), MSG
+	pxor \s1, MSG
+	pxor \s4, MSG
+	movdqa \s2, T1
+	pand \s3, T1
+	pxor T1, MSG
+	movdq\a MSG, (\i * 0x10)(DST)
+
+	aegis128_update
+	pxor MSG, \s4
+
+	sub $0x10, LEN
+	cmp $0x10, LEN
+	jl .Ldec_out_\i
+.endm
+
+/*
+ * void crypto_aegis128_aesni_dec(void *state, unsigned int length,
+ *                                const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec)
+	FRAME_BEGIN
+
+	cmp $0x10, LEN
+	jb .Ldec_out
+
+	/* load the state: */
+	movdqu 0x00(STATEP), STATE0
+	movdqu 0x10(STATEP), STATE1
+	movdqu 0x20(STATEP), STATE2
+	movdqu 0x30(STATEP), STATE3
+	movdqu 0x40(STATEP), STATE4
+
+	mov  SRC, %r8
+	or   DST, %r8
+	and $0xF, %r8
+	jnz .Ldec_u_loop
+
+.align 8
+.Ldec_a_loop:
+	decrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0
+	decrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1
+	decrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2
+	decrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3
+	decrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+	add $0x50, SRC
+	add $0x50, DST
+	jmp .Ldec_a_loop
+
+.align 8
+.Ldec_u_loop:
+	decrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0
+	decrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1
+	decrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2
+	decrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3
+	decrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+	add $0x50, SRC
+	add $0x50, DST
+	jmp .Ldec_u_loop
+
+	/* store the state: */
+.Ldec_out_0:
+	movdqu STATE4, 0x00(STATEP)
+	movdqu STATE0, 0x10(STATEP)
+	movdqu STATE1, 0x20(STATEP)
+	movdqu STATE2, 0x30(STATEP)
+	movdqu STATE3, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Ldec_out_1:
+	movdqu STATE3, 0x00(STATEP)
+	movdqu STATE4, 0x10(STATEP)
+	movdqu STATE0, 0x20(STATEP)
+	movdqu STATE1, 0x30(STATEP)
+	movdqu STATE2, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Ldec_out_2:
+	movdqu STATE2, 0x00(STATEP)
+	movdqu STATE3, 0x10(STATEP)
+	movdqu STATE4, 0x20(STATEP)
+	movdqu STATE0, 0x30(STATEP)
+	movdqu STATE1, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Ldec_out_3:
+	movdqu STATE1, 0x00(STATEP)
+	movdqu STATE2, 0x10(STATEP)
+	movdqu STATE3, 0x20(STATEP)
+	movdqu STATE4, 0x30(STATEP)
+	movdqu STATE0, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Ldec_out_4:
+	movdqu STATE0, 0x00(STATEP)
+	movdqu STATE1, 0x10(STATEP)
+	movdqu STATE2, 0x20(STATEP)
+	movdqu STATE3, 0x30(STATEP)
+	movdqu STATE4, 0x40(STATEP)
+	FRAME_END
+	RET
+
+.Ldec_out:
+	FRAME_END
+	RET
+SYM_FUNC_END(crypto_aegis128_aesni_dec)
+
+/*
+ * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length,
+ *                                     const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec_tail)
+	FRAME_BEGIN
+
+	/* load the state: */
+	movdqu 0x00(STATEP), STATE0
+	movdqu 0x10(STATEP), STATE1
+	movdqu 0x20(STATEP), STATE2
+	movdqu 0x30(STATEP), STATE3
+	movdqu 0x40(STATEP), STATE4
+
+	/* decrypt message: */
+	call __load_partial
+
+	pxor STATE1, MSG
+	pxor STATE4, MSG
+	movdqa STATE2, T1
+	pand STATE3, T1
+	pxor T1, MSG
+
+	movdqa MSG, T0
+	call __store_partial
+
+	/* mask with byte count: */
+	movq LEN, T0
+	punpcklbw T0, T0
+	punpcklbw T0, T0
+	punpcklbw T0, T0
+	punpcklbw T0, T0
+	movdqa .Laegis128_counter(%rip), T1
+	pcmpgtb T1, T0
+	pand T0, MSG
+
+	aegis128_update
+	pxor MSG, STATE4
+
+	/* store the state: */
+	movdqu STATE4, 0x00(STATEP)
+	movdqu STATE0, 0x10(STATEP)
+	movdqu STATE1, 0x20(STATEP)
+	movdqu STATE2, 0x30(STATEP)
+	movdqu STATE3, 0x40(STATEP)
+
+	FRAME_END
+	RET
+SYM_FUNC_END(crypto_aegis128_aesni_dec_tail)
+
+/*
+ * void crypto_aegis128_aesni_final(void *state, void *tag_xor,
+ *                                  u64 assoclen, u64 cryptlen);
+ */
+SYM_FUNC_START(crypto_aegis128_aesni_final)
+	FRAME_BEGIN
+
+	/* load the state: */
+	movdqu 0x00(STATEP), STATE0
+	movdqu 0x10(STATEP), STATE1
+	movdqu 0x20(STATEP), STATE2
+	movdqu 0x30(STATEP), STATE3
+	movdqu 0x40(STATEP), STATE4
+
+	/* prepare length block: */
+	movq %rdx, MSG
+	movq %rcx, T0
+	pslldq $8, T0
+	pxor T0, MSG
+	psllq $3, MSG /* multiply by 8 (to get bit count) */
+
+	pxor STATE3, MSG
+
+	/* update state: */
+	aegis128_update; pxor MSG, STATE4
+	aegis128_update; pxor MSG, STATE3
+	aegis128_update; pxor MSG, STATE2
+	aegis128_update; pxor MSG, STATE1
+	aegis128_update; pxor MSG, STATE0
+	aegis128_update; pxor MSG, STATE4
+	aegis128_update; pxor MSG, STATE3
+
+	/* xor tag: */
+	movdqu (%rsi), MSG
+
+	pxor STATE0, MSG
+	pxor STATE1, MSG
+	pxor STATE2, MSG
+	pxor STATE3, MSG
+	pxor STATE4, MSG
+
+	movdqu MSG, (%rsi)
+
+	FRAME_END
+	RET
+SYM_FUNC_END(crypto_aegis128_aesni_final)