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Re: [PATCH 6/8] x86/boot: Adjust .text/.rodata/etc permissions in one place
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 2 Dec 2021 13:15:00 +0100
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 02 Dec 2021 12:15:26 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 30.11.2021 11:04, Andrew Cooper wrote:
> At the moment, we have two locations selecting restricted permissions, not
> very far apart on boot, dependent on opposite answers from using_2M_mapping().
> The later location however can shatter superpages if needed, while the former
> cannot.
>
> Collect together all the permission adjustments at the slightly later point in
> boot, as we're may need to shatter a superpage to support __ro_after_init.
>
> No functional change.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Again with the understanding that this doesn't really depend on patch 4:
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
Jan
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