[Minios-devel] [UNIKRAFT PATCH 08/13] arch: 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.

Current supported arm64 CPU models:
native, generic, cortex-a53, cortex-a57, cortex-a72, cortex-a73,
cortex-a55 and cortex-a75.

Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
---
 Config.uk                |  2 +-
 arch/Arch.uk             |  2 ++
 arch/Config.uk           |  6 +++++
 arch/arm/arm64/Config.uk | 60 ++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 69 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/arm64/Config.uk

diff --git a/Config.uk b/Config.uk
index eea961e..a1ced33 100644
--- a/Config.uk
+++ b/Config.uk
@@ -65,7 +65,7 @@ config OPTIMIZE_SIZE
 endchoice
 
 comment "Hint: Specify a CPU type to get most benefits from performance 
optimization"
-       depends on OPTIMIZE_PERF && MARCH_GENERIC
+       depends on OPTIMIZE_PERF && (MARCH_GENERIC || MARCH_ARM64_GENERIC)
 
 config OPTIMIZE_DEADELIM
        bool "Drop unused functions and data"
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 9236273..f08274d 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)"
 
@@ -18,3 +21,6 @@ endif
 if (ARCH_ARM_32)
        source "arch/arm/arm/Config.uk"
 endif
+if (ARCH_ARM_64)
+       source "arch/arm/arm64/Config.uk"
+endif
diff --git a/arch/arm/arm64/Config.uk b/arch/arm/arm64/Config.uk
new file mode 100644
index 0000000..634ec50
--- /dev/null
+++ b/arch/arm/arm64/Config.uk
@@ -0,0 +1,60 @@
+choice
+       prompt "Processor Optimization"
+       default MARCH_ARM64_GENERIC
+       help
+               Optimize the code for selected target processor
+
+config MARCH_ARM64_NATIVE
+       bool "Auto-detect host CPU"
+       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"
+       help
+               Compile for Generic ARMv8 compatible CPUs
+
+config MARCH_ARM64_CORTEXA53
+       bool "Generic ARMv8 Cortex A53"
+       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"
+       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"
+       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"
+       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"
+       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"
+       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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