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Diffstat (limited to 'documentation/general/APIC')
| -rw-r--r-- | documentation/general/APIC | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/documentation/general/APIC b/documentation/general/APIC index 83384b7..b150f07 100644 --- a/documentation/general/APIC +++ b/documentation/general/APIC @@ -7,8 +7,10 @@ Split architecture design: local component (LAPIC) and optional I/O APIC on a sy Intel: One LAPIC in each CPU and typically one I/O APIC for each peripheral bus in the system. +Each APIC, whether a discrete chip or integrated in a CPU, has a version register containing a four-bit version number for its specific APIC implementation. For example, the 82489DX has an APIC version number of 0, while version 1 was assigned to the first generation of local APICs integrated in the Pentium 90 and 100 processors + INTEGRATED LOCAL APICS ----------------------- Manage all external interrupts for some specific processor in an SMP system. -In addition, able to accept and generate inter-processur interrupts (IPIs) between LAPICS. +In addition, able to accept and generate inter-processor interrupts (IPIs) between LAPICS. |