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authorAshok Raj <ashok.raj@intel.com>2006-02-14 18:01:12 -0500
committerTony Luck <tony.luck@intel.com>2006-02-14 18:37:58 -0500
commita6b14fa6fdc01ab3519c2729624f808677539b59 (patch)
tree5bf76be44b0c9c7f80612ac71a1b1a4390decd7d /scripts/basic
parent69aa234b918c0d9bc4a20cd6d4453aaa3418f457 (diff)
[IA64] Count disabled cpus as potential hot-pluggable CPUs
Have a facility to account for potentially hot-pluggable CPUs. ACPI doesnt give a determinstic method to find hot-pluggable CPUs. Hence we use 2 methods to assist. - BIOS can mark potentially hot-pluggable CPUs as disabled in the MADT tables. - User can specify the number of hot-pluggable CPUs via parameter additional_cpus=X The option is enabled only if ACPI_CONFIG_HOTPLUG_CPU=y which enables the physical hotplug option. Without which user can still use logical onlining and offlining of CPUs by enabling CONFIG_HOTPLUG_CPU=y Adds more bits to cpu_possible_map for potentially hot-pluggable cpus. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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