SMP on x86: Difference between revisions
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==Intel MP IDs== | ==Intel MP IDs== | ||
* Each logical processor is assigned a unique (but not necessarily sequential) identifier at boot, the APIC ID | * Each logical processor is assigned a unique (but not necessarily sequential) 8-bit identifier at boot, the APIC ID | ||
** The initial APIC ID can be retrieved via [[cpuid]], as can... | ** The initial APIC ID can be retrieved via [[cpuid]], as can... | ||
*** "logical cores per package" (CPUID.1.EBX[23:16]): Maximum number of logical processors in a physical package, as manufactured | *** "logical cores per package" (CPUID.1.EBX[23:16]): Maximum number of logical processors in a physical package, as manufactured | ||