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target-arm: Add support for AArch32 ARMv8 CRC32 instructions

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Add support for AArch32 CRC32 and CRC32C instructions added in ARMv8
and add a CPU feature flag to enable these instructions.

The CRC32-C implementation used is the built-in qemu implementation
and The CRC-32 implementation is from zlib. This requires adding zlib
to LIBS to ensure it is linked for the linux-user binary.

Signed-off-by: Will Newton <will.newton@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1393411566-24104-3-git-send-email-will.newton@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Will Newton 2014-02-26 17:20:07 +00:00 • committed by Peter Maydell
parent 0956ff5a4e
commit eb0ecd5ad9
6 changed files with 101 additions and 1 deletions
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1
target-arm/cpu.c
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@ -924,6 +924,7 @@ static void arm_any_initfn(Object *obj)
set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
set_feature(&cpu->env, ARM_FEATURE_V7MP);
set_feature(&cpu->env, ARM_FEATURE_CRC);
#ifdef TARGET_AARCH64
set_feature(&cpu->env, ARM_FEATURE_AARCH64);
#endif