Author: kevans
Date: Mon Jul 30 18:13:20 2018
New Revision: 336924
URL: https://svnweb.freebsd.org/changeset/base/336924
Log:
Follow up to r336919 and r336921: s/efi.rt_disabled/efi.rt.disabled/
The latter matches the rest of the tree better [0]. The UPDATING entry has
been updated to reflect this, and the new tunable is now documented in
loader(8) [1].
Reported by: imp [0], Shawn Webb [1]
Modified:
head/UPDATING
head/stand/man/loader.8
head/sys/dev/efidev/efirt.c
Modified: head/UPDATING
==============================================================================
--- head/UPDATING Mon Jul 30 17:59:18 2018 (r336923)
+++ head/UPDATING Mon Jul 30 18:13:20 2018 (r336924)
@@ -34,7 +34,7 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.x IS SLOW:
20180730:
amd64/GENERIC now has EFI runtime services, EFIRT, enabled by default.
This should have no effect if the kernel is booted via BIOS/legacy boot.
- EFIRT may be disabled via a loader tunable, efi.rt_disabled, if a system
+ EFIRT may be disabled via a loader tunable, efi.rt.disabled, if a system
has a buggy firmware that prevents a successful boot due to use of
runtime services.
Modified: head/stand/man/loader.8
==============================================================================
--- head/stand/man/loader.8 Mon Jul 30 17:59:18 2018 (r336923)
+++ head/stand/man/loader.8 Mon Jul 30 18:13:20 2018 (r336924)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd May 15, 2018
+.Dd July 30, 2018
.Dt LOADER 8
.Os
.Sh NAME
@@ -588,6 +588,10 @@ explicitly.
Other variables are used to override kernel tunable parameters.
The following tunables are available:
.Bl -tag -width Va
+.It Va efi.rt.disabled
+Disable UEFI runtime services in the kernel, if applicable.
+Runtime services are only available and used if the kernel is booted in a UEFI
+environment.
.It Va hw.physmem
Limit the amount of physical memory the system will use.
By default the size is in bytes, but the
Modified: head/sys/dev/efidev/efirt.c
==============================================================================
--- head/sys/dev/efidev/efirt.c Mon Jul 30 17:59:18 2018 (r336923)
+++ head/sys/dev/efidev/efirt.c Mon Jul 30 18:13:20 2018 (r336924)
@@ -136,7 +136,7 @@ efi_init(void)
int rt_disabled;
rt_disabled = 0;
- TUNABLE_INT_FETCH("efi.rt_disabled", &rt_disabled);
+ TUNABLE_INT_FETCH("efi.rt.disabled", &rt_disabled);
if (rt_disabled == 1)
return (0);
mtx_init(&efi_lock, "efi", NULL, MTX_DEF);
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