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| author | Alexander Graf <agraf@suse.de> | 2013-08-29 00:41:59 +0200 |
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| committer | Alexander Graf <agraf@suse.de> | 2013-08-29 00:41:59 +0200 |
| commit | bf550fc93d9855872a95e69e4002256110d89858 (patch) | |
| tree | 10876bb4304bffe54c4160a132e7b8de6577ac4e /Documentation/cpu-hotplug.txt | |
| parent | 7e48c101e0c53e6095c5f4f5e63d14df50aae8fc (diff) | |
| parent | cc2df20c7c4ce594c3e17e9cc260c330646012c8 (diff) | |
| download | lwn-bf550fc93d9855872a95e69e4002256110d89858.tar.gz lwn-bf550fc93d9855872a95e69e4002256110d89858.zip | |
Merge remote-tracking branch 'origin/next' into kvm-ppc-next
Conflicts:
mm/Kconfig
CMA DMA split and ZSWAP introduction were conflicting, fix up manually.
Diffstat (limited to 'Documentation/cpu-hotplug.txt')
| -rw-r--r-- | Documentation/cpu-hotplug.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt index 0efd1b905b9d..edd4b4df3932 100644 --- a/Documentation/cpu-hotplug.txt +++ b/Documentation/cpu-hotplug.txt @@ -370,8 +370,10 @@ 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. + Caveat: ACPI MADT can only provide 256 entries in systems with only ACPI 2.0c + or earlier ACPI version supported, because the apicid field in MADT is only + 8 bits. From ACPI 3.0, this limitation was removed since the apicid field + was extended to 32 bits with x2APIC introduced. User Space Notification |