More than 256 entries in ACPI MADT is supported from ACPI 3.0 Specification, So the outdated description for MADT entries should be removed.
Signed-off-by: Hanjun Guo hanjun.guo@linaro.org --- Documentation/cpu-hotplug.txt | 3 --- 1 file changed, 3 deletions(-)
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index 9f40135..2e36e40 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt @@ -370,9 +370,6 @@ A: There is no clear spec defined way from ACPI that can give us that CPUs in MADT as hotpluggable CPUS. In the case there are no disabled CPUS we assume 1/2 the number of CPUs currently present can be hotplugged.
- Caveat: Today's ACPI MADT can only provide 256 entries since the apicid field - in MADT is only 8 bits. - User Space Notification
Hotplug support for devices is common in Linux today. Its being used today to