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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-05-29 14:34:44 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2024-06-28 18:38:32 +0100 |
| commit | 9d0873892f4d4bf62a351897e91e5169b4c6f4aa (patch) | |
| tree | a97f7ff9155fbb0ed3e727ad4940faeeba5640c3 /Documentation/arch/arm64/index.rst | |
| parent | eba4675008a6e4cbff27b579a837bd29be2642de (diff) | |
arm64: Kconfig: Enable hotplug CPU on arm64 if ACPI_PROCESSOR is enabled.
In order to move arch_register_cpu() to be called via the same path
for initially present CPUs described by ACPI and hotplugged CPUs
ACPI_HOTPLUG_CPU needs to be enabled.
The protection against invalid IDs in acpi_map_cpu() is needed as
at least one production BIOS is in the wild which reports entries
in DSDT (with no _STA method, so assumed enabled and present)
that don't match MADT.
Tested-by: Miguel Luis <miguel.luis@oracle.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240529133446.28446-18-Jonathan.Cameron@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'Documentation/arch/arm64/index.rst')
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