From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Borislav Petkov <bp@suse.de>
Subject: [PATCH] ACPI: Kconfig: Provide help text for the ACPI_PRMT option
Date: Thu, 01 Jul 2021 18:34:52 +0200 [thread overview]
Message-ID: <11780652.O9o76ZdvQC@kreacher> (raw)
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add missing help text for CONFIG_ACPI_PRMT.
Fixes: cefc7ca46235 ("ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype")
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/Kconfig | 10 ++++++++++
1 file changed, 10 insertions(+)
Index: linux-pm/drivers/acpi/Kconfig
===================================================================
--- linux-pm.orig/drivers/acpi/Kconfig
+++ linux-pm/drivers/acpi/Kconfig
@@ -548,3 +548,13 @@ config ACPI_PRMT
bool "Platform Runtime Mechanism Support"
depends on EFI && X86_64
default y
+ help
+ Platform Runtime Mechanism (PRM) is a firmware interface exposing a
+ set of binary executables that can be called from the AML interpreter
+ or directly from device drivers.
+
+ Say Y to enable the AML interpreter to execute the PRM code.
+
+ While this feature is optional in principle, leaving it out may
+ substantially increase computational overhead related to the
+ initialization of some server systems.
reply other threads:[~2021-07-01 16:35 UTC|newest]
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