Documentation, mm/unaccepted: document accept_memory kernel parameterb4/accept_memory_param

The accept_memory kernel parameter was added in commit dcdfdd40fa82
("mm: Add support for unaccepted memory") but not listed in the
kernel-parameters doc. Add it there.

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

1 files changed, 11 insertions, 0 deletions

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 65731b060e3fef..91bd74b2e203b8 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1,3 +1,14 @@
+	accept_memory=  [MM]
+			Format: { eager | lazy }
+			default: lazy
+			By default, unaccepted memory is accepted lazily to
+			avoid prolonged boot times. The lazy option will add
+			some runtime overhead until all memory is eventually
+			accepted. In most cases the overhead is negligible.
+			For some workloads or for debugging purposes
+			accept_memory=eager can be used to accept all memory
+			at once during boot.
+
 	acpi=		[HW,ACPI,X86,ARM64,RISCV64]
 			Advanced Configuration and Power Interface
 			Format: { force | on | off | strict | noirq | rsdt |