[PATCH v4 26/26] docs: move numa=fake description to kernel-parameters.txt

Mike Rapoport
2024-08-07T06:46:42Z

NUMA emulation can be now enabled on arm64 and riscv in addition to x86.

Move description of numa=fake parameters from x86 documentation of
admin-guide/kernel-parameters.txt

Suggested-by: Zi Yan <ziy@nvidia.com>
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [arm64 + CXL via QEMU]
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
---
Documentation/admin-guide/kernel-parameters.txt | 15 +++++++++++++++
Documentation/arch/x86/x86_64/boot-options.rst | 12 ------------
2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f1384c7b59c9..bcdee8984e1f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4123,6 +4123,21 @@
Disable NUMA, Only set up a single NUMA node
spanning all memory.

+ numa=fake=<size>[MG]
+ [KNL, ARM64, RISCV, X86, EARLY]
+ If given as a memory unit, fills all system RAM with
+ nodes of size interleaved over physical nodes.
+
+ numa=fake=<N>
+ [KNL, ARM64, RISCV, X86, EARLY]
+ If given as an integer, fills all system RAM with N
+ fake nodes interleaved over physical nodes.
+
+ numa=fake=<N>U
+ [KNL, ARM64, RISCV, X86, EARLY]
+ If given as an integer followed by 'U', it will
+ divide each physical node into N emulated nodes.
+
numa_balancing= [KNL,ARM64,PPC,RISCV,S390,X86] Enable or disable automatic
NUMA balancing.
Allowed values are enable and disable
diff --git a/Documentation/arch/x86/x86_64/boot-options.rst b/Documentation/arch/x86/x86_64/boot-options.rst
index 137432d34109..98d4805f0823 100644
--- a/Documentation/arch/x86/x86_64/boot-options.rst
+++ b/Documentation/arch/x86/x86_64/boot-options.rst
@@ -170,18 +170,6 @@ NUMA
Don't parse the HMAT table for NUMA setup, or soft-reserved memory
partitioning.

- numa=fake=<size>[MG]
- If given as a memory unit, fills all system RAM with nodes of
- size interleaved over physical nodes.
-
- numa=fake=<N>
- If given as an integer, fills all system RAM with N fake nodes
- interleaved over physical nodes.
-
- numa=fake=<N>U
- If given as an integer followed by 'U', it will divide each
- physical node into N emulated nodes.
-
ACPI
====

--
2.43.0