Current x86 implementation of Device Tree does not support multiprocessing, and the bindings documentation describes the "reg" property of "cpu" nodes as "CPU number" instead of hardware-assigned local APIC ID.
v8: * Fixed build error with CONFIG_X86_LOCAL_APIC=n reported by kbuild. v7: * Change log update. v6: * Calling of_property_read_u32() to get Local APIC ID from "reg". * DT documentation changes: corrected CPU node example and changed the "reg" property description. v5: * Using the "reg" property to specify Local APIC ID. Ivan Gorinov (2): of: Documentation: Specify local APIC ID in "reg" x86/devicetree: Use CPU description from Device Tree Documentation/devicetree/bindings/x86/ce4100.txt | 37 ++++++++++++++----- arch/x86/kernel/devicetree.c | 45 +++++++++++++++++------- 2 files changed, 61 insertions(+), 21 deletions(-) -- 2.7.4

