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Enable SBI_V01 for RISCV64 kernel #140

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Enable SBI_V01 for RISCV64 kernel #140

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2 changes: 2 additions & 0 deletions riscv64/build_kernel.sh
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Expand Up @@ -16,6 +16,8 @@ git clone --depth 1 --branch $KERNEL_TAG https://github.com/torvalds/linux.git
pushd linux
# Enable kvm module instead of inserting manually
sed -i "s|^CONFIG_KVM=.*|CONFIG_KVM=y|g" arch/riscv/configs/defconfig
# Enable legacy SBI calls and activate vcpu_sbi_ext_v01 for kvm.
echo "CONFIG_RISCV_SBI_V01=y" >> arch/riscv/configs/defconfig
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@RuoqingHe RuoqingHe Sep 30, 2025 •
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This is need for KVM to process SBI legacy interfaces, and put vcpu_sbi_ext_v01 into working, would you please document this line a bit, like add a comment above, and add some descriptions in the commit message 🙂

make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- defconfig && \
make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- -j$(nproc)
mv arch/riscv/boot/Image $OUTPUT
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