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.kurochko@gmail.com/
2. https://lore.kernel.org/xen-devel/a92f99e8f697da99d77bfde562a549dbef3760ce.1692816595.git.sanastasio@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.

---
Changes in V4:
 - add asm-generic support
 - update path of vm_event.h from include/asm-generic/asm to include/asm-generic
---
Changes in V3:
 - add Acked-by: Stefano Stabellini <sstabellini@kernel.org> for "xen: move arm/include/asm/vm_event.h to asm-generic"
 - update SPDX tag.
 - move asm/vm_event.h to asm-generic.
 - rename stubs dir to asm-generic.

---
Changes in V2:
 - change public/domctl.h to public/vm_event.h.
 - update commit message of [PATCH v2 2/2] xen: move arm/include/asm/vm_event.h to stubs


Oleksii Kurochko (2):
  xen: asm-generic support
  xen: move arm/include/asm/vm_event.h to asm-generic

 xen/Makefile                       | 10 +++++-
 xen/arch/arm/include/asm/Kbuild    |  1 +
 xen/arch/ppc/include/asm/Kbuild    |  1 +
 xen/arch/riscv/include/asm/Kbuild  |  1 +
 xen/arch/x86/include/asm/Kbuild    |  1 +
 xen/include/asm-generic/vm_event.h | 55 ++++++++++++++++++++++++++++++
 xen/scripts/Makefile.asm-generic   | 23 +++++++++++++
 7 files changed, 91 insertions(+), 1 deletion(-)
 create mode 100644 xen/arch/arm/include/asm/Kbuild
 create mode 100644 xen/arch/ppc/include/asm/Kbuild
 create mode 100644 xen/arch/riscv/include/asm/Kbuild
 create mode 100644 xen/arch/x86/include/asm/Kbuild
 create mode 100644 xen/include/asm-generic/vm_event.h
 create mode 100644 xen/scripts/Makefile.asm-generic

-- 
2.41.0