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Re: [PATCH v2 02/19] xen: introduce CONFIG_SYSCTL
- To: Penny Zheng <Penny.Zheng@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 27 Mar 2025 10:57:02 +0100
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- Cc: ray.huang@xxxxxxx, Stefano Stabellini <stefano.stabellini@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Sergiy Kibrik <Sergiy_Kibrik@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 27 Mar 2025 09:57:11 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 26.03.2025 06:50, Penny Zheng wrote:
> From: Stefano Stabellini <stefano.stabellini@xxxxxxx>
>
> We intend to introduces a new Kconfig CONFIG_SYSCTL, which shall only
> be disabled on some dom0less systems, to reduce Xen footprint.
Nit: "We intend to ..." takes about future work, yet the new control is ...
> --- a/xen/common/Kconfig
> +++ b/xen/common/Kconfig
> @@ -545,4 +545,15 @@ config BUDDY_ALLOCATOR_SIZE
> Amount of memory reserved for the buddy allocator to serve Xen heap,
> working alongside the colored one.
>
> +menu "Supported hypercall interfaces"
> + visible if EXPERT
> +
> +config SYSCTL
> + bool "Enable sysctl hypercall"
> + default y
> + help
> + This option shall only be disabled on some dom0less systems,
> + to reduce Xen footprint.
> +endmenu
> +
> endmenu
... introduced right here.
Jan
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