summaryrefslogtreecommitdiffstats
path: root/Documentation/admin-guide/kernel-parameters.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt39
1 files changed, 31 insertions, 8 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 62d68b2056de..be7c0d9506b1 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -106,6 +106,16 @@
use by PCI
Format: <irq>,<irq>...
+ acpi_mask_gpe= [HW,ACPI]
+ Due to the existence of _Lxx/_Exx, some GPEs triggered
+ by unsupported hardware/firmware features can result in
+ GPE floodings that cannot be automatically disabled by
+ the GPE dispatcher.
+ This facility can be used to prevent such uncontrolled
+ GPE floodings.
+ Format: <int>
+ Support masking of GPEs numbered from 0x00 to 0x7f.
+
acpi_no_auto_serialize [HW,ACPI]
Disable auto-serialization of AML methods
AML control methods that contain the opcodes to create
@@ -1441,6 +1451,10 @@
The builtin appraise policy appraises all files
owned by uid=0.
+ ima_canonical_fmt [IMA]
+ Use the canonical format for the binary runtime
+ measurements, instead of host native format.
+
ima_hash= [IMA]
Format: { md5 | sha1 | rmd160 | sha256 | sha384
| sha512 | ... }
@@ -1560,6 +1574,12 @@
disable
Do not enable intel_pstate as the default
scaling driver for the supported processors
+ passive
+ Use intel_pstate as a scaling driver, but configure it
+ to work with generic cpufreq governors (instead of
+ enabling its internal governor). This mode cannot be
+ used along with the hardware-managed P-states (HWP)
+ feature.
force
Enable intel_pstate on systems that prohibit it by default
in favor of acpi-cpufreq. Forcing the intel_pstate driver
@@ -1580,6 +1600,9 @@
Description Table, specifies preferred power management
profile as "Enterprise Server" or "Performance Server",
then this feature is turned on by default.
+ per_cpu_perf_limits
+ Allow per-logical-CPU P-State performance control limits using
+ cpufreq sysfs interface
intremap= [X86-64, Intel-IOMMU]
on enable Interrupt Remapping (default)
@@ -2122,6 +2145,12 @@
memory contents and reserves bad memory
regions that are detected.
+ mem_sleep_default= [SUSPEND] Default system suspend mode:
+ s2idle - Suspend-To-Idle
+ shallow - Power-On Suspend or equivalent (if supported)
+ deep - Suspend-To-RAM or equivalent (if supported)
+ See Documentation/power/states.txt.
+
meye.*= [HW] Set MotionEye Camera parameters
See Documentation/video4linux/meye.txt.
@@ -3475,13 +3504,6 @@
[KNL, SMP] Set scheduler's default relax_domain_level.
See Documentation/cgroup-v1/cpusets.txt.
- relative_sleep_states=
- [SUSPEND] Use sleep state labeling where the deepest
- state available other than hibernation is always "mem".
- Format: { "0" | "1" }
- 0 -- Traditional sleep state labels.
- 1 -- Relative sleep state labels.
-
reserve= [KNL,BUGS] Force the kernel to ignore some iomem area
reservetop= [X86-32]
@@ -3799,10 +3821,11 @@
it if 0 is given (See Documentation/cgroup-v1/memory.txt)
swiotlb= [ARM,IA-64,PPC,MIPS,X86]
- Format: { <int> | force }
+ Format: { <int> | force | noforce }
<int> -- Number of I/O TLB slabs
force -- force using of bounce buffers even if they
wouldn't be automatically used by the kernel
+ noforce -- Never use bounce buffers (for debugging)
switches= [HW,M68k]
OpenPOWER on IntegriCloud