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arm64: configs: Add virtconfig
Provide a slimline configuration intended to be booted on virtual machines, with the goal of providing a light configuration which will boot on and enable features available in mach-virt. This is defined in terms of the standard defconfig, with an additional virt.config fragment which disables options unneeded in a virtual configuration. As a first step we just disable all the ARCH_ configuration options, disabling the build of all the SoC specific drivers. This results in a kernel that builds about 25% faster in my testing, if this approach works for people we can add further options. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230203-arm64-defconfigs-v1-3-cd0694a05f13@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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@ -215,6 +215,12 @@ ifdef CONFIG_COMPAT_VDSO
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endif
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endif
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include $(srctree)/scripts/Makefile.defconf
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PHONY += virtconfig
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virtconfig:
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$(call merge_into_defconfig_override,defconfig,virt)
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define archhelp
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echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
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echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
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39
arch/arm64/configs/virt.config
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39
arch/arm64/configs/virt.config
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@ -0,0 +1,39 @@
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# CONFIG_ARCH_ACTIONS is not set
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# CONFIG_ARCH_SUNXI is not set
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# CONFIG_ARCH_ALPINE is not set
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# CONFIG_ARCH_APPLE is not set
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# CONFIG_ARCH_BCM is not set
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# CONFIG_ARCH_BCM2835 is not set
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# CONFIG_ARCH_BCMBCA is not set
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# CONFIG_ARCH_BCM_IPROC is not set
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# CONFIG_ARCH_BERLIN is not set
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# CONFIG_ARCH_BRCMSTB is not set
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# CONFIG_ARCH_EXYNOS is not set
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# CONFIG_ARCH_K3 is not set
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# CONFIG_ARCH_LAYERSCAPE is not set
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# CONFIG_ARCH_LG1K is not set
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# CONFIG_ARCH_HISI is not set
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# CONFIG_ARCH_KEEMBAY is not set
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# CONFIG_ARCH_MEDIATEK is not set
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# CONFIG_ARCH_MESON is not set
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# CONFIG_ARCH_MVEBU is not set
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# CONFIG_ARCH_NXP is not set
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# CONFIG_ARCH_MXC is not set
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# CONFIG_ARCH_NPCM is not set
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# CONFIG_ARCH_QCOM is not set
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# CONFIG_ARCH_RENESAS is not set
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# CONFIG_ARCH_ROCKCHIP is not set
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# CONFIG_ARCH_S32 is not set
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# CONFIG_ARCH_SEATTLE is not set
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# CONFIG_ARCH_INTEL_SOCFPGA is not set
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# CONFIG_ARCH_SYNQUACER is not set
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# CONFIG_ARCH_TEGRA is not set
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# CONFIG_ARCH_TESLA_FSD is not set
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# CONFIG_ARCH_SPRD is not set
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# CONFIG_ARCH_THUNDER is not set
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# CONFIG_ARCH_THUNDER2 is not set
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# CONFIG_ARCH_UNIPHIER is not set
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# CONFIG_ARCH_VEXPRESS is not set
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# CONFIG_ARCH_VISCONTI is not set
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# CONFIG_ARCH_XGENE is not set
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# CONFIG_ARCH_ZYNQMP is not set
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