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Re: [PATCH v3] arm: Fix PT_PT table descriptor value and comment
- To: Gabriel Quintáns Souto <gabi.qs.mail@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: "Orzel, Michal" <michal.orzel@xxxxxxx>
- Date: Tue, 19 May 2026 09:18:03 +0200
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- Cc: <sstabellini@xxxxxxxxxx>, <julien@xxxxxxx>, <bertrand.marquis@xxxxxxx>
- Delivery-date: Tue, 19 May 2026 07:18:34 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 18-May-26 23:00, Gabriel Quintáns Souto wrote:
> Per ARMv7-A/ARMv8-A ARM, bits [11:2] of table descriptors are
> ignored by hardware. The original comment incorrectly described
> block/page descriptor fields which are not present in table
> descriptors.
>
> Use the minimal valid encoding for table descriptors by setting
> PT_PT to 0x3.
>
> This updates both arm32 and arm64 for consistency.
>
> Signed-off-by: Gabriel Quintáns Souto <gabi.qs.mail@xxxxxxxxx>
Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
~Michal
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