* SMT_ID or APIC_ID caching
@ 2005-09-02 14:55 Wilkerson, Bryan P
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From: Wilkerson, Bryan P @ 2005-09-02 14:55 UTC (permalink / raw)
To: linux-kernel
On a P4 with HT, I'm trying to get the logical processor ID (SMT_ID) for
the currently executing thread in kernel mode. The SMT_ID is part of
the APIC_ID which is in EBX[24:16] after calling cpuid with EAX=1.
Is the SMT_ID or APIC_ID per_cpu cached by the kernel anywhere?
Thanks,
-bryan
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