[LinuxBIOS] Help with meaning of config options.
yasteve at gmail.com
Tue Dec 4 18:45:24 CET 2007
On Tue, 2007-12-04 at 10:18 -0700, Marc Jones wrote:
> CONFIG_MAX_CPUS : Saves space in the ACPI tables and additional stack
> space for maximum possible number of cores in the system. Might be
> better named as CONFIG_MAX_CPUs_CORES (AMD only)
> CONFIG_MAX_PHYSICAL_CPUS: Used to set memory SPD addresses and in
> coherent HyperTransport initialization (AMD only)
> CONFIG_LOGICAL_CPUS : This is the flag to build in multi-core support.
> Similar to CONFIG_MAX_CPUS but only set to 0 or 1. (Used by AMD and
> Intel code)
> Your setup:
> CONFIG_MAX_CPUS : 4 - 4 cores
> CONFIG_MAX_PHYSICAL_CPUS: 2 - 2 CPUs
> CONFIG_LOGICAL_CPUS : 1 - build multi core support in.
I'm not suggesting a change. I'm just trying to make sure I understand
So, would it make sense to think of it as having an option that defines
the number of cores per CPU (e.g. CONFIG_CORES_PER_CPU) and let
CONFIG_MAX_CPUS equal CONFIG_MAX_PHYSICAL_CPUS * CONFIG_CORES_PER_CPU?
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