On Wed, Jun 13, 2018 at 01:43:10PM -0500, Suravee Suthikulpanit wrote:
> The current logic incorrectly calculates the LLC ID from the APIC ID.
> Unless specified otherwise, the LLC ID should be calculated from
> the count order of the number of threads sharing cache.
Don't you mean:
"... should be calculated by removing the Core and Thread ID bits"?
here?
I'm looking at
"2.1.10.2.1.3 ApicId Enumeration Requirements
...
Each Core::X86::Apic::ApicId[ApicId] register is preset as follows:
• ApicId[6] = Socket ID.
• ApicId[5:4] = Node ID.
• ApicId[3] = Logical CCX L3 complex ID
• ApicId[2:0]= (SMT) ? {LogicalCoreID[1:0],ThreadId} :
{1'b0,LogicalCoreID[1:0]}.
and in order to get a unique LLC ID, you simply need to shift out the
CoreID and the ThreadId, right?
Or am I misreading it?
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
