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Re: [PATCH v2 1/2] arm/mpu: Enable is_xen_heap_page and is_xen_heap_mfn for ARM_32
- To: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: "Orzel, Michal" <michal.orzel@xxxxxxx>
- Date: Thu, 21 Aug 2025 13:09:49 +0200
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, "Volodymyr Babchuk" <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Thu, 21 Aug 2025 11:10:00 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 14/08/2025 10:19, 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>
Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
~Michal
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