Messages in this thread | | | Date | Wed, 28 Jan 2015 12:18:44 -0600 | From | Timur Tabi <> | Subject | Re: [Linaro-acpi] [PATCH v7 04/17] ARM64 / ACPI: Introduce early_param for "acpi" and pass acpi=force to enable ACPI |
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On 01/28/2015 12:14 PM, Catalin Marinas wrote: >> >So it looks like there's a whole conversation about this already in >> >this thread that I didn't notice. However, reading through all of it, >> >I still don't understand sure why the presence of ACPI tables is >> >insufficient to enable ACPI.
> Because ACPI on arm64 is still experimental, no matter how many people > claim that it is production ready in their private setups.
Fair enough. Does this mean that passing "acpi=force" on the kernel command line is a requirement for ARM64 servers?
>> >In what situation would we want to ignore ACPI tables that are >> >present?
> When DT tables are also present (and for the first platforms, that's > highly recommended, though not easily enforceable at the kernel level).
My understanding is that the EFI stub creates a device tree (and it contains some important information), so I don't understand how we can ever have an ACPI-only platform on ARM64 servers.
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