A lot of empty/stub headers should be introduced during the early steps of adding support of new architecture.
An example can be found here: 1. https://lore.kernel.org/xen-devel/cover.1692181079.git.oleksii.kuroc...@gmail.com/ 2. https://lore.kernel.org/xen-devel/a92f99e8f697da99d77bfde562a549dbef3760ce.1692816595.git.sanasta...@raptorengineering.com/ As part of the patch series, asm/vm_event.h was moved to the stubs directory because It is the same for ARM, PPC, and RISC-V. Oleksii Kurochko (2): xen: add stubs dir to include path xen: move arm/include/asm/vm_event.h to stubs xen/Makefile | 1 + xen/arch/arm/include/asm/vm_event.h | 66 ----------------------------- xen/include/stubs/asm/vm_event.h | 55 ++++++++++++++++++++++++ 3 files changed, 56 insertions(+), 66 deletions(-) delete mode 100644 xen/arch/arm/include/asm/vm_event.h create mode 100644 xen/include/stubs/asm/vm_event.h -- 2.41.0