Re: [PATCH v1 1/2] arm/mpu: Enable is_xen_heap_page and co for ARM_32

[Hari Limaye <hari.limaye@xxxxxxx>]

Hi Ayan,

> On Thu, Aug 07, 2025 at 06:45:28PM +0000, Ayan Kumar Halder wrote:
> In case of ARM_32, all of the RAM will be covered by a permanent contiguous
> mapping (where VA == PA) and there will be a single heap. Thus, the memory
> allocated from Xen heap uses PGC_xen_heap.
> This is similar to the scenario described for
> "CONFIG_SEPARATE_XENHEAP=n W/ DIRECT MAP OF ALL RAM" in common/page_alloc.c.
> 
> Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
> ---

This patch breaks the build for ARM_32, CONFIG_MMU targets due to
multiple definition of `is_xen_heap_page` and `is_xen_heap_mfn`. The
pre-existing definitions are located at xen/arch/arm/include/asm/mmu/mm.h:30:9

Cheers,
Hari