This is a mandatory feature for Armv8.1 architectures but we don't
state the feature clearly in our emulation list. While checking verify
our cortex-a76 model matches up with the current TRM by breaking out
the long form isar into a more modern readable FIELD_DP code.
Signed-off-by: Alex Bennée <alex.ben...@linaro.org>
---
docs/system/arm/emulation.rst | 1 +
target/arm/cpu64.c | 29 ++++++++++++++++++++++++++---
target/arm/cpu_tcg.c | 2 +-
3 files changed, 28 insertions(+), 4 deletions(-)
diff --git a/docs/system/arm/emulation.rst
b/docs/system/arm/emulation.rst
index 2062d71261..2c4fde5eef 100644
--- a/docs/system/arm/emulation.rst
+++ b/docs/system/arm/emulation.rst
@@ -14,6 +14,7 @@ the following architecture extensions:
- FEAT_BBM at level 2 (Translation table break-before-make levels)
- FEAT_BF16 (AArch64 BFloat16 instructions)
- FEAT_BTI (Branch Target Identification)
+- FEAT_CRC32 (CRC32 instruction)
- FEAT_CSV2 (Cache speculation variant 2)
- FEAT_CSV2_1p1 (Cache speculation variant 2, version 1.1)
- FEAT_CSV2_1p2 (Cache speculation variant 2, version 1.2)
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 4066950da1..12e1a532ab 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -912,6 +912,8 @@ static void aarch64_a72_initfn(Object *obj)
static void aarch64_a76_initfn(Object *obj)
{
ARMCPU *cpu = ARM_CPU(obj);
+ uint64_t t;
+ uint32_t u;
cpu->dtb_compatible = "arm,cortex-a76";
set_feature(&cpu->env, ARM_FEATURE_V8);
@@ -928,7 +930,18 @@ static void aarch64_a76_initfn(Object *obj)
cpu->ctr = 0x8444C004;
cpu->dcz_blocksize = 4;
cpu->isar.id_aa64dfr0 = 0x0000000010305408ull;
- cpu->isar.id_aa64isar0 = 0x0000100010211120ull;
+
+ /* per r4p1 of the Cryptographic Extension TRM */
+ t = cpu->isar.id_aa64isar0;
+ t = FIELD_DP64(t, ID_AA64ISAR0, AES, 2); /* FEAT_PMULL */
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA1, 1); /* FEAT_SHA1 */
+ t = FIELD_DP64(t, ID_AA64ISAR0, SHA2, 1); /* FEAT_SHA512 */
+ t = FIELD_DP64(t, ID_AA64ISAR0, CRC32, 1); /* FEAT_CRC32 */
+ t = FIELD_DP64(t, ID_AA64ISAR0, ATOMIC, 2); /* FEAT_LSE */
+ t = FIELD_DP64(t, ID_AA64ISAR0, RDM, 1); /* FEAT_RDM */
+ t = FIELD_DP64(t, ID_AA64ISAR0, DP, 1); /* FEAT_DotProd */
