On 30.09.2024 18:39, Oleksii Kurochko wrote: > Centralize per-cpu area management to reduce code duplication and > enhance maintainability across architectures. > > The per-cpu area management code, which is largely common among > architectures, is moved to a shared implementation in > xen/common/percpu.c. This change includes: > * Remove percpu.c from the X86 and Arm architectures. > * For x86, define INVALID_PERCPU_AREAS and PARK_OFFLINE_CPUS_VAR. > * Drop the declaration of __per_cpu_offset[] from stubs.c in > PPC and RISC-V to facilitate the build of the common per-cpu code. > > No functional changes for x86. > > For Arm add support of CPU_RESUME_FAILED, CPU_REMOVE and freeing of > percpu in the case when system_state != SYS_STATE_suspend. > > Move the asm-generic/percpu.h definitions to xen/percpu.h, except for > __per_cpu_start[] and __per_cpu_data_end[], which are moved to > common/percpu.c as they are only used in common/percpu.c. > > Signed-off-by: Oleksii Kurochko <oleksii.kuroc...@gmail.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
