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Re: [PATCH v12 2/6] x86/altp2m: Wrap altp2m-specific code in #ifdef CONFIG_ALTP2M
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
- Date: Fri, 22 Aug 2025 19:02:56 -0400
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- Cc: Petr Beneš <w1benny@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>, Petre Pircalabu <ppircalabu@xxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Fri, 22 Aug 2025 23:03:45 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu, Jul 31, 2025 at 5:33 AM Jan Beulich <jbeulich@xxxxxxxx> wrote:
>
> On 31.07.2025 11:27, Petr Beneš wrote:
> > From: Petr Beneš <w1benny@xxxxxxxxx>
> >
> > This change consistently guards all altp2m-related functionality
> > behind #ifdef CONFIG_ALTP2M, so that code and data structures related
> > to alternate p2m views are only included when the feature is enabled.
> >
> > Apart from that:
> > - hvmemul_vmfunc() returns X86EMUL_UNHANDLEABLE when altp2m is disabled.
> > - do_altp2m_op() returns EOPNOTSUPP when altp2m is disabled.
> > - struct hvm_vcpu, arch_domain, and hvm_function_table only define altp2m
> > fields when the feature is enabled.
> > - Moved several declarations under #ifdef CONFIG_ALTP2M in p2m.h to avoid
> > polluting builds that don't require the feature.
> >
> > Signed-off-by: Petr Beneš <w1benny@xxxxxxxxx>
>
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
>
For mem_access bits:
Acked-by: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
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