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Re: [PATCH] xen/privcmd: make option visible in Kconfig
- To: Juergen Gross <jgross@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 16 Nov 2021 15:55:46 +0100
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- Cc: linux@xxxxxxxxxxxxxx, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- Delivery-date: Tue, 16 Nov 2021 14:56:12 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 16.11.2021 15:33, Juergen Gross wrote:
> This configuration option provides a misc device as an API to userspace.
> Make this API usable without having to select the module as a transitive
> dependency.
>
> This also fixes an issue where localyesconfig would select
> CONFIG_XEN_PRIVCMD=m because it was not visible and defaulted to
> building as module.
>
> Based-on-patch-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
> --- a/drivers/xen/Kconfig
> +++ b/drivers/xen/Kconfig
> @@ -259,9 +259,14 @@ config XEN_SCSI_BACKEND
> if guests need generic access to SCSI devices.
>
> config XEN_PRIVCMD
> - tristate
> + tristate "Xen hypercall passthrough driver"
> depends on XEN
> default m
> + help
> + The hypercall passthrough driver allows user land programs to perform
Maybe worth adding "privileged" here? Albeit of course that's different
from the use of the word ...
> + Xen hypercalls. This driver is normally required for systems running
> + as Dom0 to perform privileged operations, but in some disaggregated
... here, so there'd be a small risk of confusion.
Jan
> + Xen setups this driver might be needed for other domains, too.
>
> config XEN_ACPI_PROCESSOR
> tristate "Xen ACPI processor"
>
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