[PATCH v1 00/15] power: unify and improve lcore ID verification

[Stephen Hemminger]

On Thu, 16 Apr 2026 11:05:57 +0800
Huisong Li <lihuisong at huawei.com> wrote:

> This patch series reworks the lcore ID verification logic within the power
> library to ensure consistency and improve maintainability. Currently, various
> cpufreq drivers implement their own lcore ID checks, often relying on simple
> range checks that do not account for whether a core is actually enabled in
> the application.
> 
> Key Changes:
> 1. Replaces basic range checks with rte_lcore_is_enabled() across all
>    cpufreq drivers (ACPI, AMD P-state, CPPC, Intel P-state, and KVM VM).
>    This ensures the power library only operates on lcores assigned to the
>    application.
> 2. Introduces a common macro in the power library's internal headers to
>    standardize lcore ID verification.
> 3. Moves the verification logic from individual driver implementations up
>    to the high-level framework API. This reduces duplication code and
>    ensures that all drivers benefit from uniform validation.
> 4. Updates the power QoS and PMD Management libraries to use the new macro.
> 
> Huisong Li (15):
>   power/kvm_vm: enforce enabled lcore ID check
>   power/acpi_cpufreq: enforce enabled lcore ID check
>   power/amd_pstate: enforce enabled lcore ID check
>   power/cppc_cpufreq: enforce enabled lcore ID check
>   power/intel_pstate: enforce enabled lcore ID check
>   power: enforce enabled lcore ID check
>   power: add a common macro to verify lcore ID
>   power/pmd_mgmt: replace lcore ID verification with new macro
>   power/qos: replace the lcore ID verification with new macro
>   power/cpufreq: add the lcore ID verification to framework
>   power/acpi_cpufreq: remove the verification of lcore ID
>   power/amd_pstate: remove the verification of lcore ID
>   power/cppc_cpufreq: remove the verification of lcore ID
>   power/intel_pstate: remove the verification of lcore ID
>   power/kvm_vm: remove the verification of lcore ID
> 
>  drivers/power/acpi/acpi_cpufreq.c             | 65 -------------------
>  drivers/power/amd_pstate/amd_pstate_cpufreq.c | 65 -------------------
>  drivers/power/cppc/cppc_cpufreq.c             | 65 -------------------
>  .../power/intel_pstate/intel_pstate_cpufreq.c | 65 -------------------
>  drivers/power/kvm_vm/kvm_vm.c                 | 10 ---
>  lib/power/power_common.h                      |  7 ++
>  lib/power/rte_power_cpufreq.c                 | 14 ++++
>  lib/power/rte_power_pmd_mgmt.c                | 25 ++-----
>  lib/power/rte_power_qos.c                     | 10 +--
>  9 files changed, 30 insertions(+), 296 deletions(-)
> 

Patch 3 did not get sent in the series maybe too big or mail issue?