On 2013-6-21 3:52, Rafael J. Wysocki wrote: > On Thursday, June 20, 2013 04:54:42 PM Hanjun Guo wrote: >> More than 256 entries in ACPI MADT is supported from ACPI 3.0 Specification, >> So the outdated description for MADT entries should be removed. > > Well, it kind of is still valid for systems pre-dating ACPI 3.0, isn't it?
Yes, it is. > > So perhaps instead of simply removing that information it would be better to > rephrase it? Good idea, I will update my patch and send out soon. Thanks Hanjun > > Thanks, > Rafael > > >> Signed-off-by: Hanjun Guo <hanjun....@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 >> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
