From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org, qemu-riscv@nongnu.org, pbonzini@redhat.com,
eduardo@habkost.net, alistair.francis@wdc.com,
danielhb413@gmail.com,
"Daniel P . Berrangé" <berrange@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH v4 35/37] crypto: Implement aesdec_IMC with AES_imc_rot
Date: Mon, 3 Jul 2023 12:05:18 +0200 [thread overview]
Message-ID: <20230703100520.68224-36-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230703100520.68224-1-richard.henderson@linaro.org>
This method uses one uint32_t * 256 table instead of 4,
which means its data cache overhead is less.
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
crypto/aes.c | 42 +++++++++++++++++++++---------------------
1 file changed, 21 insertions(+), 21 deletions(-)
diff --git a/crypto/aes.c b/crypto/aes.c
index 00e16d3f92..d93883eb18 100644
--- a/crypto/aes.c
+++ b/crypto/aes.c
@@ -1377,39 +1377,39 @@ aesdec_IMC_swap(AESState *r, const AESState *st, bool swap)
bool be = HOST_BIG_ENDIAN ^ swap;
uint32_t t;
- /* Note that AES_imc is encoded for big-endian. */
- t = (AES_imc[st->b[swap_b ^ 0x0]][0] ^
- AES_imc[st->b[swap_b ^ 0x1]][1] ^
- AES_imc[st->b[swap_b ^ 0x2]][2] ^
- AES_imc[st->b[swap_b ^ 0x3]][3]);
- if (!be) {
+ /* Note that AES_imc_rot is encoded for little-endian. */
+ t = ( AES_imc_rot[st->b[swap_b ^ 0x0]] ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0x1]], 8) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0x2]], 16) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0x3]], 24));
+ if (be) {
t = bswap32(t);
}
r->w[swap_w ^ 0] = t;
- t = (AES_imc[st->b[swap_b ^ 0x4]][0] ^
- AES_imc[st->b[swap_b ^ 0x5]][1] ^
- AES_imc[st->b[swap_b ^ 0x6]][2] ^
- AES_imc[st->b[swap_b ^ 0x7]][3]);
- if (!be) {
+ t = ( AES_imc_rot[st->b[swap_b ^ 0x4]] ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0x5]], 8) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0x6]], 16) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0x7]], 24));
+ if (be) {
t = bswap32(t);
}
r->w[swap_w ^ 1] = t;
- t = (AES_imc[st->b[swap_b ^ 0x8]][0] ^
- AES_imc[st->b[swap_b ^ 0x9]][1] ^
- AES_imc[st->b[swap_b ^ 0xA]][2] ^
- AES_imc[st->b[swap_b ^ 0xB]][3]);
- if (!be) {
+ t = ( AES_imc_rot[st->b[swap_b ^ 0x8]] ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0x9]], 8) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0xA]], 16) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0xB]], 24));
+ if (be) {
t = bswap32(t);
}
r->w[swap_w ^ 2] = t;
- t = (AES_imc[st->b[swap_b ^ 0xC]][0] ^
- AES_imc[st->b[swap_b ^ 0xD]][1] ^
- AES_imc[st->b[swap_b ^ 0xE]][2] ^
- AES_imc[st->b[swap_b ^ 0xF]][3]);
- if (!be) {
+ t = ( AES_imc_rot[st->b[swap_b ^ 0xC]] ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0xD]], 8) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0xE]], 16) ^
+ rol32(AES_imc_rot[st->b[swap_b ^ 0xF]], 24));
+ if (be) {
t = bswap32(t);
}
r->w[swap_w ^ 3] = t;
--
2.34.1
next prev parent reply other threads:[~2023-07-03 10:12 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-03 10:04 [PATCH v4 00/37] crypto: Provide aes-round.h and host accel Richard Henderson
2023-07-03 10:04 ` [PATCH v4 01/37] util: Add cpuinfo-ppc.c Richard Henderson
2023-07-03 10:04 ` [PATCH v4 02/37] tests/multiarch: Add test-aes Richard Henderson
2023-07-03 12:08 ` Christoph Müllner
2023-07-05 14:28 ` Richard Henderson
2023-07-03 10:04 ` [PATCH v4 03/37] target/arm: Move aesmc and aesimc tables to crypto/aes.c Richard Henderson
2023-07-03 10:04 ` [PATCH v4 04/37] crypto/aes: Add AES_SH, AES_ISH macros Richard Henderson
2023-07-03 10:04 ` [PATCH v4 05/37] crypto: Add aesenc_SB_SR_AK Richard Henderson
2023-07-03 10:04 ` [PATCH v4 06/37] crypto: Add aesdec_ISB_ISR_AK Richard Henderson
2023-07-03 10:04 ` [PATCH v4 07/37] crypto: Add aesenc_MC Richard Henderson
2023-07-03 10:04 ` [PATCH v4 08/37] crypto: Add aesdec_IMC Richard Henderson
2023-07-03 10:04 ` [PATCH v4 09/37] crypto: Add aesenc_SB_SR_MC_AK Richard Henderson
2023-07-03 10:04 ` [PATCH v4 10/37] crypto: Add aesdec_ISB_ISR_IMC_AK Richard Henderson
2023-07-03 10:04 ` [PATCH v4 11/37] crypto: Add aesdec_ISB_ISR_AK_IMC Richard Henderson
2023-07-03 10:04 ` [PATCH v4 12/37] host/include/i386: Implement aes-round.h Richard Henderson
2023-07-03 10:04 ` [PATCH v4 13/37] host/include/aarch64: " Richard Henderson
2023-07-08 17:35 ` Philippe Mathieu-Daudé
2023-07-03 10:04 ` [PATCH v4 14/37] host/include/ppc: " Richard Henderson
2023-07-03 10:04 ` [PATCH v4 15/37] target/ppc: Use aesenc_SB_SR_AK Richard Henderson
2023-07-03 10:04 ` [PATCH v4 16/37] target/ppc: Use aesdec_ISB_ISR_AK Richard Henderson
2023-07-03 10:05 ` [PATCH v4 17/37] target/ppc: Use aesenc_SB_SR_MC_AK Richard Henderson
2023-07-07 19:50 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 18/37] target/ppc: Use aesdec_ISB_ISR_AK_IMC Richard Henderson
2023-07-03 10:05 ` [PATCH v4 19/37] target/i386: Use aesenc_SB_SR_AK Richard Henderson
2023-07-03 10:05 ` [PATCH v4 20/37] target/i386: Use aesdec_ISB_ISR_AK Richard Henderson
2023-07-03 10:05 ` [PATCH v4 21/37] target/i386: Use aesdec_IMC Richard Henderson
2023-07-07 19:48 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 22/37] target/i386: Use aesenc_SB_SR_MC_AK Richard Henderson
2023-07-07 19:50 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 23/37] target/i386: Use aesdec_ISB_ISR_IMC_AK Richard Henderson
2023-07-07 20:34 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 24/37] target/arm: Demultiplex AESE and AESMC Richard Henderson
2023-07-03 10:05 ` [PATCH v4 25/37] target/arm: Use aesenc_SB_SR_AK Richard Henderson
2023-07-08 17:18 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 26/37] target/arm: Use aesdec_ISB_ISR_AK Richard Henderson
2023-07-08 17:19 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 27/37] target/arm: Use aesenc_MC Richard Henderson
2023-07-08 17:20 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 28/37] target/arm: Use aesdec_IMC Richard Henderson
2023-07-08 17:20 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 29/37] target/riscv: Use aesenc_SB_SR_AK Richard Henderson
2023-07-07 20:38 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 30/37] target/riscv: Use aesdec_ISB_ISR_AK Richard Henderson
2023-07-07 20:32 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 31/37] target/riscv: Use aesdec_IMC Richard Henderson
2023-07-08 17:22 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 32/37] target/riscv: Use aesenc_SB_SR_MC_AK Richard Henderson
2023-07-07 20:26 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 33/37] target/riscv: Use aesdec_ISB_ISR_IMC_AK Richard Henderson
2023-07-08 17:33 ` Philippe Mathieu-Daudé
2023-07-03 10:05 ` [PATCH v4 34/37] crypto: Remove AES_shifts, AES_ishifts Richard Henderson
2023-07-03 10:05 ` Richard Henderson [this message]
2023-07-03 10:05 ` [PATCH v4 36/37] crypto: Remove AES_imc Richard Henderson
2023-07-03 10:05 ` [PATCH v4 37/37] crypto: Unexport AES_*_rot, AES_TeN, AES_TdN Richard Henderson
2023-07-07 17:30 ` [PATCH v4 00/37] crypto: Provide aes-round.h and host accel Daniel Henrique Barboza
2023-07-08 17:38 ` Philippe Mathieu-Daudé
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