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ACPI Exception (): AE_NOT_FOUND, Processor Device is not present (update)

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update cfaf3747ff
ACPI: ACPI Exception (): AE_NOT_FOUND, Processor Device is not present

is_processor_present is only called in the processor hotplug case,
and _STA method is mandatory at this time.

We should ignore those processors that are disabled in the MADT
and don't have _STA methods.
Because they will never exist in this system.
For the processors that don't physically exist but can be
hot plugged later, we still need this debug info.

http://bugzilla.kernel.org/show_bug.cgi?id=8570

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang Rui 2008-02-23 01:53:09 -05:00 committed by Len Brown
parent 39273b58a4
commit d0ce46f550
1 changed files with 9 additions and 7 deletions
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16
drivers/acpi/processor_core.c
View file

@ -840,17 +840,19 @@ static int is_processor_present(acpi_handle handle)
status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
/*
* if a processor object does not have an _STA object,
* OSPM assumes that the processor is present.
*/
if (status == AE_NOT_FOUND)
return 1;
if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
return 1;
ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
/*
* _STA is mandatory for a processor that supports hot plug
*/
if (status == AE_NOT_FOUND)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Processor does not support hot plug\n"));
else
ACPI_EXCEPTION((AE_INFO, status,
"Processor Device is not present"));
return 0;
}