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Bug #13369

bhyve should mask PQoS bits from CPUID

Added by Patrick Mooney 4 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
bhyve
Start date:
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:

Description

Modern AMD CPUs have features similar to Intel RDT, referred to as "Platform Quality of Service Extensions". Like their Intel counterparts, they related to partitioning cache and memory bandwidth resources. While they share some of the same CPUID leaves as RDT, there are some parts which appear bespoke to AMD and will require additional masking. See their manual "AMD64 Technology Platform Quality of Service Ext" (Publication #56375) for more detail.


Related issues

Related to illumos gate - Bug #13361: bhyve should mask RDT cpuid infoClosedPatrick Mooney

Actions
#1

Updated by Patrick Mooney 4 months ago

  • Related to Bug #13361: bhyve should mask RDT cpuid info added

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