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Re: [PATCH 1/3] mini-os: mm: introduce generic page table walk function

To: Juergen Gross <jgross@xxxxxxxx>
From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
Date: Wed, 31 Jul 2024 23:33:12 +0200
Cc: minios-devel@xxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, wl@xxxxxxx
Delivery-date: Wed, 31 Jul 2024 21:33:20 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Mail-followup-to: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, minios-devel@xxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, wl@xxxxxxx

Juergen Gross, le mer. 31 juil. 2024 15:00:24 +0200, a ecrit:
> +            ptindex[lvl] = (va >> ptdata[lvl].shift) &
> +                           (ptdata[lvl].entries - 1);

It seems that this kind of va+lvl-to-index computation happens several
times? It's probably worth making it a macro.

Samuel

References:
- [PATCH 0/3] mini-os: mm: use a generic page table walker
  - From: Juergen Gross
- [PATCH 1/3] mini-os: mm: introduce generic page table walk function
  - From: Juergen Gross

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