Commit a268b5f1 authored by Borislav Petkov's avatar Borislav Petkov Committed by Ingo Molnar

x86/topology: Document cpu_llc_id

It means different things on Intel and AMD so write it down so that
there's no confusion.
Signed-off-by: default avatarBorislav Petkov <>
Cc: Peter Zijlstra <>
Cc: Yazen Ghannam <>
Link: default avatarThomas Gleixner <>
Signed-off-by: default avatarIngo Molnar <>
parent 59107e2f
......@@ -63,6 +63,15 @@ The topology of a system is described in the units of:
The maximum possible number of packages in the system. Helpful for per
package facilities to preallocate per package information.
- cpu_llc_id:
A per-CPU variable containing:
- On Intel, the first APIC ID of the list of CPUs sharing the Last Level
- On AMD, the Node ID or Core Complex ID containing the Last Level
Cache. In general, it is a number identifying an LLC uniquely on the
* Cores:
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