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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-07-01 18:34:52 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-07-01 18:49:05 +0200
commit9b52363b9283376c868679bdcd6e19405a4aca5a (patch)
treec387f74e4daa9d875a60bec10cf3a3b03fbbc193 /drivers/acpi/Kconfig
parentd7a188bb87d8da78a1ef0dea53f1639f3daf0790 (diff)
downloadlinux-9b52363b9283376c868679bdcd6e19405a4aca5a.tar.gz
ACPI: Kconfig: Provide help text for the ACPI_PRMT option
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>
Diffstat (limited to 'drivers/acpi/Kconfig')
-rw-r--r--drivers/acpi/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 3972de7b7565..3fec02522a6a 100644
--- a/drivers/acpi/Kconfig
+++ b/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.