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

[Wei Chen <Wei.Chen@xxxxxxx>]

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.

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
-- 
2.7.4


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