The online enabled bit on newer ACPI implmentations will indicate whether the CPU is hotpluggable. Link: http://github.com/acpica/acpica/pull/708/ Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> --- include/acpi/actbl2.h | 1 + 1 file changed, 1 insertion(+) Changes from v2: * Split into a separate patch from the acpica pull request diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 2069ac38a4e2..fae45e383987 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -808,6 +808,7 @@ struct acpi_madt_multiproc_wakeup_mailbox { /* MADT Local APIC flags */ #define ACPI_MADT_ENABLED (1) /* 00: Processor is usable if set */ +#define ACPI_MADT_ONLINE_CAPABLE (2) /* 01: System HW supports enabling processor at runtime */ /* MADT MPS INTI flags (inti_flags) */ -- 2.25.1
