[PATCH 0/2] x86/resctrl: Fix Platform QoS issues for Hygon

From: Xiaochen Shen

Date: Wed Dec 03 2025 - 21:38:57 EST


This patch series fixes two issues regarding Platform QoS (resctrl)
support on Hygon CPUs.

The first patch adds the missing initialization sequence required for
proper resctrl functionality. The second patch corrects the bit-width
configuration for the Memory Bandwidth Monitoring (MBM) counter.

Xiaochen Shen (2):
x86/resctrl: Add missing resctrl initialization for Hygon
x86/resctrl: Fix memory bandwidth counter width for Hygon

arch/x86/kernel/cpu/resctrl/core.c | 21 +++++++++++++++++----
arch/x86/kernel/cpu/resctrl/internal.h | 3 +++
2 files changed, 20 insertions(+), 4 deletions(-)

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2.47.3