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HV: Generalize RDT infrastructure and fix RDT

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cache configuration.

This patch creates a generic infrastructure for
RDT resources instead of just L2 or L3 cache. This
patch also fixes L3 CAT config overwrite by L2 in
cases where both L2 and L3 CAT are supported.

Tracked-On: #3715
Signed-off-by: Vijay Dhanraj <vijay.dhanraj@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Vijay Dhanraj
2020-02-17 12:50:19 -08:00
committed by wenlingz
parent 887e3813bc
commit d0665fe220
6 changed files with 146 additions and 69 deletions
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8
hypervisor/arch/x86/Kconfig
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@@ -261,12 +261,12 @@ config HYPERV_ENABLED
When set, the minimum set of TLFS functionality together with some
performance enlightenments are enabled.
config CAT_ENABLED
bool "Enable CAT (Cache Allocation Technology)"
config RDT_ENABLED
bool "Enable RDT (Resource Director Technology)"
default n
help
When set in platforms that support CAT, hypervisor can allocate
various amount of last-level-cache (LLC) resources to VMs to achieve
When set in platforms that support RDT, hypervisor can allocate
various amount of HW resources such as L2 or/and L3 to VMs to achieve
different Class of Service (COS, or CLOS).
config GPU_SBDF