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authorPeter Newman <peternewman@google.com>2023-04-19 14:50:15 +0200
committerBorislav Petkov (AMD) <bp@alien8.de>2023-06-07 12:42:12 +0200
commite0a6ede2dd884adb73a7dde80444185b655f7c79 (patch)
treee49e1be97457fc3990af8c2a4dcbfb8b8c5780b2 /Documentation/arch
parent8da2b938eb7e2ef407b8ef99def12e3054a99645 (diff)
Documentation/x86: Documentation for MON group move feature
Describe new support for moving MON groups to a new parent CTRL_MON group and its restrictions. Signed-off-by: Peter Newman <peternewman@google.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Link: https://lore.kernel.org/r/20230419125015.693566-4-peternewman@google.com
Diffstat (limited to 'Documentation/arch')
-rw-r--r--Documentation/arch/x86/resctrl.rst7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/arch/x86/resctrl.rst b/Documentation/arch/x86/resctrl.rst
index 387ccbcb558f..cb05d90111b4 100644
--- a/Documentation/arch/x86/resctrl.rst
+++ b/Documentation/arch/x86/resctrl.rst
@@ -287,6 +287,13 @@ Removing a directory will move all tasks and cpus owned by the group it
represents to the parent. Removing one of the created CTRL_MON groups
will automatically remove all MON groups below it.
+Moving MON group directories to a new parent CTRL_MON group is supported
+for the purpose of changing the resource allocations of a MON group
+without impacting its monitoring data or assigned tasks. This operation
+is not allowed for MON groups which monitor CPUs. No other move
+operation is currently allowed other than simply renaming a CTRL_MON or
+MON group.
+
All groups contain the following files:
"tasks":