diff options
| author | Mark Brown <[email protected]> | 2023-02-10 19:52:49 +0000 |
|---|---|---|
| committer | Arnd Bergmann <[email protected]> | 2023-02-13 20:18:29 +0100 |
| commit | c6cd63f5af3921c484be5789cf23e0f276de3a2f (patch) | |
| tree | c24523df9ef392811d8cd325c82ad831fb9a994d | |
| parent | a63971257e66bbf354e8801623caffa965e9ba5c (diff) | |
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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
| -rw-r--r-- | arch/arm64/Makefile | 6 | ||||
| -rw-r--r-- | arch/arm64/configs/virt.config | 39 |
2 files changed, 45 insertions, 0 deletions
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index d62bd221828f..d7dfe00df7d2 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -215,6 +215,12 @@ ifdef CONFIG_COMPAT_VDSO endif endif +include $(srctree)/scripts/Makefile.defconf + +PHONY += virtconfig +virtconfig: + $(call merge_into_defconfig_override,defconfig,virt) + define archhelp echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' diff --git a/arch/arm64/configs/virt.config b/arch/arm64/configs/virt.config new file mode 100644 index 000000000000..6ef0a739717f --- /dev/null +++ b/arch/arm64/configs/virt.config @@ -0,0 +1,39 @@ +# CONFIG_ARCH_ACTIONS is not set +# CONFIG_ARCH_SUNXI is not set +# CONFIG_ARCH_ALPINE is not set +# CONFIG_ARCH_APPLE is not set +# CONFIG_ARCH_BCM is not set +# CONFIG_ARCH_BCM2835 is not set +# CONFIG_ARCH_BCMBCA is not set +# CONFIG_ARCH_BCM_IPROC is not set +# CONFIG_ARCH_BERLIN is not set +# CONFIG_ARCH_BRCMSTB is not set +# CONFIG_ARCH_EXYNOS is not set +# CONFIG_ARCH_K3 is not set +# CONFIG_ARCH_LAYERSCAPE is not set +# CONFIG_ARCH_LG1K is not set +# CONFIG_ARCH_HISI is not set +# CONFIG_ARCH_KEEMBAY is not set +# CONFIG_ARCH_MEDIATEK is not set +# CONFIG_ARCH_MESON is not set +# CONFIG_ARCH_MVEBU is not set +# CONFIG_ARCH_NXP is not set +# CONFIG_ARCH_MXC is not set +# CONFIG_ARCH_NPCM is not set +# CONFIG_ARCH_QCOM is not set +# CONFIG_ARCH_RENESAS is not set +# CONFIG_ARCH_ROCKCHIP is not set +# CONFIG_ARCH_S32 is not set +# CONFIG_ARCH_SEATTLE is not set +# CONFIG_ARCH_INTEL_SOCFPGA is not set +# CONFIG_ARCH_SYNQUACER is not set +# CONFIG_ARCH_TEGRA is not set +# CONFIG_ARCH_TESLA_FSD is not set +# CONFIG_ARCH_SPRD is not set +# CONFIG_ARCH_THUNDER is not set +# CONFIG_ARCH_THUNDER2 is not set +# CONFIG_ARCH_UNIPHIER is not set +# CONFIG_ARCH_VEXPRESS is not set +# CONFIG_ARCH_VISCONTI is not set +# CONFIG_ARCH_XGENE is not set +# CONFIG_ARCH_ZYNQMP is not set |