[v5,02/10] xen/arm: Restrict Kconfig configuration for LLC coloring

[Luca Fancellu <luca.fancellu@xxxxxxx>]

Xen LLC coloring feature can be used only on the MMU subsystem,
move the code that selects it from ARM_64 to MMU and add the
ARM_64 dependency.

Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
---
https://patchwork.kernel.org/project/xen-devel/patch/20250307075818.740649-3-luca.fancellu@xxxxxxx/
v5 changes:
 - no changes
v4 changes:
 - clarified that it's the Xen feature LLC coloring that is not
   applicable to the MPU subsystem, not the generic cache coloring
   method.
 - Add R-by Michal

v3 changes:
 - Dropped comment on top of boot_fdt_info()

v2 changes:
 - dropped part of the v1 code, now this one is simpler, I will
   discuss better how to design a common boot flow for MPU and
   implement on another patch.

---
---
 xen/arch/arm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/Kconfig b/xen/arch/arm/Kconfig
index a26d3e11827c..ffdff1f0a36c 100644
--- a/xen/arch/arm/Kconfig
+++ b/xen/arch/arm/Kconfig
@@ -8,7 +8,6 @@ config ARM_64
        depends on !ARM_32
        select 64BIT
        select HAS_FAST_MULTIPLY
-       select HAS_LLC_COLORING if !NUMA
 
 config ARM
        def_bool y
@@ -76,6 +75,7 @@ choice
 
 config MMU
        bool "MMU"
+       select HAS_LLC_COLORING if !NUMA && ARM_64
        select HAS_PMAP
        select HAS_VMAP
        select HAS_PASSTHROUGH
-- 
2.34.1