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Re: [PATCH] xen/acpi: Allow xen/acpi.h to be included on non-ACPI archs


  • To: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Thu, 11 Apr 2024 14:15:19 +0100
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  • Cc: tpearson@xxxxxxxxxxxxxxxxxxxxx, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Dario Faggioli <dfaggioli@xxxxxxxx>, Henry Wang <Henry.Wang@xxxxxxx>
  • Delivery-date: Thu, 11 Apr 2024 13:15:41 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 05/04/2024 7:20 pm, Shawn Anastasio wrote:
> Conditionalize xen/acpi.h's inclusion of acpi/acpi.h and asm/acpi.h on
> CONFIG_ACPI and import ARM's !CONFIG_ACPI stub for acpi_disabled() so
> that the header can be included on architectures without ACPI support,
> like ppc.
>
> This change revealed some missing #includes across the ARM tree, so fix
> those as well.
>
> Suggested-by: Jan Beulich <jbeulich@xxxxxxxx>
> Signed-off-by: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
> ---
>  xen/arch/arm/arm32/mmu/mm.c     | 1 +
>  xen/arch/arm/arm64/smpboot.c    | 3 ++-
>  xen/arch/arm/domain_build.c     | 1 -
>  xen/arch/arm/gic-v2.c           | 1 -
>  xen/arch/arm/gic-v3.c           | 2 --
>  xen/arch/arm/include/asm/acpi.h | 1 -
>  xen/arch/arm/mmu/setup.c        | 1 +
>  xen/arch/arm/psci.c             | 1 +
>  xen/arch/arm/smpboot.c          | 1 +
>  xen/arch/arm/traps.c            | 3 ++-
>  xen/common/sched/boot-cpupool.c | 2 +-
>  xen/include/xen/acpi.h          | 8 ++++++--
>  12 files changed, 15 insertions(+), 10 deletions(-)


Pre-push testing found a randconfig error caused by this: 
https://gitlab.com/xen-project/people/andyhhp/xen/-/jobs/6602857882

Henry diagnosed this as "arm asm/acpi.h includes the arm asm/setup.h
then asm/p2m.h then finally asm/current.h".

pt.c uses smp_processor_id() explicitly, so should include
asm/current.h.  I've folded the following delta in to fix the issue,

diff --git a/xen/arch/arm/mmu/pt.c b/xen/arch/arm/mmu/pt.c
index a7755728aeda..da28d669e796 100644
--- a/xen/arch/arm/mmu/pt.c
+++ b/xen/arch/arm/mmu/pt.c
@@ -11,6 +11,7 @@
 #include <xen/sizes.h>
 #include <xen/vmap.h>
 
+#include <asm/current.h>
 #include <asm/fixmap.h>
 
 #ifdef NDEBUG


But I suspect this may not be the only instance.

~Andrew



 


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