linux-kernel - [PATCH] Documentation: update config name in real-time architecture support

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Message-ID: <20250910085859.47818-1-lukas.bulwahn@redhat.com>
Date: Wed, 10 Sep 2025 10:58:59 +0200
From: Lukas Bulwahn <lbulwahn@...hat.com>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Clark Williams <clrkwllms@...nel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Jonathan Corbet <corbet@....net>,
	linux-rt-devel@...ts.linux.dev,
	linux-doc@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Lukas Bulwahn <lukas.bulwahn@...hat.com>
Subject: [PATCH] Documentation: update config name in real-time architecture support

From: Lukas Bulwahn <lukas.bulwahn@...hat.com>

Commit 14ec35ff5786 ("entry: Rename "kvm" entry code assets to "virt" to
genericize APIs") renames the config KVM_XFER_TO_GUEST_WORK to
VIRT_XFER_TO_GUEST_WORK. In a concurrent development work with commit
f51fe3b7e48c ("Documentation: Add real-time to core-api"), the
documentation on making an architecture support PREEMPT_RT has been
included referring to this config with its previous name.

Adjust the documentation to the current situation, and specifically
refer to the new name of the config.

Fixes: f51fe3b7e48c ("Documentation: Add real-time to core-api")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...hat.com>
---
 Documentation/core-api/real-time/architecture-porting.rst | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Documentation/core-api/real-time/architecture-porting.rst b/Documentation/core-api/real-time/architecture-porting.rst
index d822fac29922..3062cff0e5a3 100644
--- a/Documentation/core-api/real-time/architecture-porting.rst
+++ b/Documentation/core-api/real-time/architecture-porting.rst
@@ -35,9 +35,10 @@ POSIX CPU timers and KVM
   POSIX CPU timers must expire from thread context rather than directly within
   the timer interrupt. This behavior is enabled by setting the configuration
   option CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK.
-  When KVM is enabled, CONFIG_KVM_XFER_TO_GUEST_WORK must also be set to ensure
-  that any pending work, such as POSIX timer expiration, is handled before
-  transitioning into guest mode.
+  When virtualization support, such as KVM, is enabled,
+  CONFIG_VIRT_XFER_TO_GUEST_WORK must also be set to ensure that any pending
+  work, such as POSIX timer expiration, is handled before transitioning into
+  guest mode.
 
 Hard-IRQ and Soft-IRQ stacks
   Soft interrupts are handled in the thread context in which they are raised. If
-- 
2.51.0