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[XEN,v1,0/2] x86/CPU: optional build of Intel/AMD CPUs support

Message ID cover.1723196909.git.Sergiy_Kibrik@epam.com (mailing list archive)
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Series x86/CPU: optional build of Intel/AMD CPUs support | expand

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Sergiy Kibrik Aug. 9, 2024, 10:07 a.m. UTC 
This series is one more step towards separation of Intel/AMD support in Xen.
With all preparation work is mostly done now, it becomes possible to make build
of arch/x86/cpu/{amd.c,intel.c} files optional, depending on whether
CONFIG_{AMD,INTEL} are enabled or not.

This can be useful for builds tuned for specific platform -- by reducing dead
code that won't ever be executed on that platform anyway.

Note: this series (namely its Intel part) depends on optional PSR support patch:
https://lore.kernel.org/xen-devel/20240801084453.1163506-1-Sergiy_Kibrik@epam.com/

  -Sergiy
  
Sergiy Kibrik (2):
  x86/intel: optional build of intel.c
  x86/amd: optional build of amd.c

 xen/arch/x86/cpu/Makefile            | 10 +++++-----
 xen/arch/x86/cpu/common.c            |  8 ++++++--
 xen/arch/x86/include/asm/amd.h       | 22 ++++++++++++++++++++++
 xen/arch/x86/include/asm/processor.h |  7 ++++---
 xen/arch/x86/spec_ctrl.c             |  2 ++
 5 files changed, 39 insertions(+), 10 deletions(-)