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Message-Id: <20211130145317.946676-2-sashal@kernel.org>
Date: Tue, 30 Nov 2021 09:53:03 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Juergen Gross <jgross@...e.com>,
Thomas Weißschuh <linux@...ssschuh.net>,
Jan Beulich <jbeulich@...e.com>,
Boris Ostrovsky <boris.ostrovsky@...cle.com>,
Sasha Levin <sashal@...nel.org>, xen-devel@...ts.xenproject.org
Subject: [PATCH AUTOSEL 4.14 02/14] xen/privcmd: make option visible in Kconfig
From: Juergen Gross <jgross@...e.com>
[ Upstream commit 897919ad8b42eb8222553838ab82414a924694aa ]
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.
[boris: clarified help message per Jan's suggestion]
Based-on-patch-by: Thomas Weißschuh <linux@...ssschuh.net>
Signed-off-by: Juergen Gross <jgross@...e.com>
Link: https://lore.kernel.org/r/20211116143323.18866-1-jgross@suse.com
Reviewed-by: Jan Beulich <jbeulich@...e.com>
Reviewed-by: Thomas Weißschuh <linux@...ssschuh.net>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/xen/Kconfig | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 30187b86729bb..818e4809c2a54 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -218,9 +218,15 @@ 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 privileged user programs to
+ perform Xen hypercalls. This driver is normally required for systems
+ running as Dom0 to perform privileged operations, but in some
+ disaggregated Xen setups this driver might be needed for other
+ domains, too.
config XEN_STUB
bool "Xen stub drivers"
--
2.33.0
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