Re: [Minios-devel] [UNIKRAFT PATCH 6/9] build: Add arm64 architecture config to menuconfig

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

On 15.03.2018 04:39, Wei Chen wrote:
> Add the arm64 entry for menuconfig. As different silicon vendors may
> have different 64-bit ARMv8 SoCs. If we want to add them to Config,
> it will be a large list. So we only provide ARM's cortex A53~A75 CPUs
> for "Processor Optimization"
>
> If we use MARCH_ as the prefix for ARM64 CPUs as x86, when we select
> "generic", the MARCH_GENERIC will conflict with x86's MARCH_GENERIC.
> So, we use MARCH_ARM64_ for ARM64 as the prefix.
Hum, the same should happen with ARM32, right?
And we should even rename the MARCH_* for x86. Can you add these patches 
to your series?
> Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
> ---
>   arch/Arch.uk       |  2 ++
>   arch/Config.uk     |  5 +++-
>   arch/arm/Config.uk | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
>   3 files changed, 72 insertions(+), 2 deletions(-)
>
> diff --git a/arch/Arch.uk b/arch/Arch.uk
> index 64f418c..edcbdd4 100644
> --- a/arch/Arch.uk
> +++ b/arch/Arch.uk
> @@ -1,6 +1,8 @@
>   # Selects architecture according to .config
>   ifeq ($(ARCH_X86_64),y)
>   UK_ARCH := x86_64
> +else ifeq ($(ARCH_ARM_64),y)
> +UK_ARCH := arm64
>   else ifeq ($(ARCH_ARM_32),y)
>   UK_ARCH := arm
>   endif
> diff --git a/arch/Config.uk b/arch/Config.uk
> index a040288..92aa6c6 100644
> --- a/arch/Config.uk
> +++ b/arch/Config.uk
> @@ -1,12 +1,15 @@
>   choice
>         prompt "Architecture"
>         default ARCH_ARM_32 if (UK_ARCH = "arm")
> +       default ARCH_ARM_64 if (UK_ARCH = "arm64")
>         default ARCH_X86_64
>         help
>           Select the target CPU architecture.
>   
>   config ARCH_X86_64
>          bool "x86 compatible (64 bits)"
> +config ARCH_ARM_64
> +       bool "ARMv8 compatible (64 bits)"
>   config ARCH_ARM_32
>          bool "ARMv7 compatible (32 bits)"
>   
> @@ -15,6 +18,6 @@ endchoice
>   if (ARCH_X86_64)
>         source "arch/x86/Config.uk"
>   endif
> -if (ARCH_ARM_32)
> +if (ARCH_ARM_32 || ARCH_ARM_64)
>         source "arch/arm/Config.uk"
>   endif
> diff --git a/arch/arm/Config.uk b/arch/arm/Config.uk
> index 426c113..932cbd9 100644
> --- a/arch/arm/Config.uk
> +++ b/arch/arm/Config.uk
> @@ -1,18 +1,83 @@
>   choice
>         prompt "Processor Optimization"
> -       default MARCH_CORTEXA7
> +       default MARCH_CORTEXA7 if ARCH_ARM_32
> +       default MARCH_ARM64_GENERIC if ARCH_ARM_64
>         help
>                 Optimize the code for selected target processor
>   
>   config MARCH_CORTEXA7
>         bool "Generic Cortex A7"
> +       depends on ARCH_ARM_32
>         help
>                 Compile for Cortex-A7 CPUs, no hardware FPU support
>   
>   config MARCH_A20NEON
>         bool "Cortex A7: AllWinner A20"
> +       depends on ARCH_ARM_32
>         help
>                 Compile for AllWinner A20 (Cortex-A7) CPUs
>                 The NEON FPU is enabled. Please note that NEON is
>                 not fully IEEE 754 compliant.
> +
> +config MARCH_ARM64_NATIVE
> +       bool "Auto-detect host CPU"
> +       depends on ARCH_ARM_64
> +       help
> +               Optimize compilation to host CPU. Please note that this
> +               option will fail in case of cross-compilation
> +
> +config MARCH_ARM64_GENERIC
> +       bool "Generic ARMv8 CPU"
> +       depends on ARCH_ARM_64
> +       help
> +               Compile for Generic ARMv8 compatible CPUs
> +
> +config MARCH_ARM64_CORTEXA53
> +       bool "Generic ARMv8 Cortex A53"
> +       depends on ARCH_ARM_64
> +       help
> +               Compile for ARMv8 Cortex-A53 CPUs. Support TrustZone, NEON
> +               advanced SIMD, VFPv4, hardware virtualization, dual issue,
> +               in-order pipeline
> +
> +config MARCH_ARM64_CORTEXA57
> +       bool "Generic ARMv8 Cortex A57"
> +       depends on ARCH_ARM_64
> +       help
> +               Compile for ARMv8 Cortex-A57 CPUs. Support TrustZone, NEON
> +               advanced SIMD, VFPv4, hardware virtualization, 3-way
> +               superscalar, deeply out-of-order pipeline
> +
> +config MARCH_ARM64_CORTEXA72
> +       bool "Generic ARMv8 Cortex A72"
> +       depends on ARCH_ARM_64
> +       help
> +               Compile for ARMv8 Cortex-A72 CPUs. Support TrustZone, NEON
> +               advanced SIMD, VFPv4, hardware virtualization, 3-way
> +               superscalar, deeply out-of-order pipeline
> +
> +config MARCH_ARM64_CORTEXA73
> +       bool "Generic ARMv8 Cortex A73"
> +       depends on ARCH_ARM_64
> +       help
> +               Compile for ARMv8 Cortex-A73 CPUs. Support TrustZone, NEON
> +               advanced SIMD, VFPv4, hardware virtualization, 2-way
> +               superscalar, deeply out-of-order pipeline
> +
> +config MARCH_ARM64_CORTEXA55
> +       bool "Generic ARMv8.2 Cortex A55"
> +       depends on ARCH_ARM_64
> +       help
> +               Compile for ARMv8.2 Cortex-A55 CPUs. Support TrustZone, NEON
> +               advanced SIMD, VFPv4, hardware virtualization, triple issue,
> +               in-order pipeline
> +
> +config MARCH_ARM64_CORTEXA75
> +       bool "Generic ARMv8.2 Cortex A75"
> +       depends on ARCH_ARM_64
> +       help
> +               Compile for ARMv8.2 Cortex-A75 CPUs. Support TrustZone, NEON
> +               advanced SIMD, VFPv4, hardware virtualization, 3-way
> +               superscalar, deeply out-of-order pipeline
> +
>   endchoice
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