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If both ACPI and DT platform descriptions are available, and the kernel was configured at build time to support both flavours, the default policy is to prefer DT over ACPI, and preferring ACPI over DT while still allowing DT as a fallback is not possible. Since some enterprise features (such as RAS) depend on ACPI, it may be desirable for, e.g., distro installers to prefer ACPI boot but fall back to DT rather than failing completely if no ACPI tables are available. So introduce the 'acpi=on' kernel command line parameter for arm64, which signifies that ACPI should be used if available, and DT should only be used as a fallback. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> |
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| boot | ||
| configs | ||
| crypto | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| mm | ||
| net | ||
| xen | ||
| Kconfig | ||
| Kconfig.debug | ||
| Kconfig.platforms | ||
| Makefile | ||