x86/intel_rdt: Introduce the Cache Pseudo-Locking modes

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The two modes used to manage Cache Pseudo-Locked regions are introduced.  A
resource group is assigned "pseudo-locksetup" mode when the user indicates
that this resource group will be used for a Cache Pseudo-Locked
region. When the Cache Pseudo-Locked region has been set up successfully
after the user wrote the requested schemata to the "schemata" file, then
the mode will automatically changed to "pseudo-locked".  The user is not
able to modify the mode to "pseudo-locked" by writing "pseudo-locked" to
the "mode" file directly.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: fenghua.yu@intel.com
Cc: tony.luck@intel.com
Cc: vikas.shivappa@linux.intel.com
Cc: gavin.hindman@intel.com
Cc: jithu.joseph@intel.com
Cc: dave.hansen@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/98d6ca129bbe7dd0932d1fcfeb3cbb65f29a8d9d.1529706536.git.reinette.chatre@intel.com

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Reinette Chatre 2018-06-22 15:42:08 -07:00 • committed by Thomas Gleixner

parent e17e733070

commit bb9fec69cb

2 changed files with 21 additions and 2 deletions

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10

arch/x86/kernel/cpu/intel_rdt.h

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13

arch/x86/kernel/cpu/intel_rdt_rdtgroup.c

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