Kohei Tarumizu 294395caac x86/resctrl: Fix to restore to original value when re-enabling hardware prefetch register ...

[ Upstream commit 499c8bb4693d1c8d8f3d6dd38e5bdde3ff5bd906 ]

The current pseudo_lock.c code overwrites the value of the
MSR_MISC_FEATURE_CONTROL to 0 even if the original value is not 0.
Therefore, modify it to save and restore the original values.

Fixes: 018961ae55 ("x86/intel_rdt: Pseudo-lock region creation/removal core")
Fixes: 443810fe61 ("x86/intel_rdt: Create debugfs files for pseudo-locking testing")
Fixes: 8a2fc0e1bc ("x86/intel_rdt: More precise L2 hit/miss measurements")
Signed-off-by: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lkml.kernel.org/r/eb660f3c2010b79a792c573c02d01e8e841206ad.1661358182.git.reinette.chatre@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-10-26 13:25:19 +02:00

..

core.c

x86/resctrl: Free the ctrlval arrays when domain_setup_mon_state() fails

2021-10-20 11:44:59 +02:00

ctrlmondata.c

x86/resctrl: Add struct rdt_cache::arch_has_{sparse, empty}_bitmaps

2020-08-19 10:41:40 +02:00

internal.h

x86/resctrl: Fix AMD L3 QOS CDP enable/disable

2020-12-01 17:53:31 +01:00

Makefile

x86/resctrl: Avoid confusion over the new X86_RESCTRL config

2019-02-02 10:34:52 +01:00

monitor.c

x86/resctrl: Fix a maybe-uninitialized build warning treated as error

2021-09-15 09:50:47 +02:00

pseudo_lock_event.h

x86/resctrl: Rename and move rdt files to a separate directory

2018-11-22 20:16:18 +01:00

pseudo_lock.c

x86/resctrl: Fix to restore to original value when re-enabling hardware prefetch register

2022-10-26 13:25:19 +02:00

rdtgroup.c

x86/resctrl: Don't move a task to the same resource group

2021-01-12 20:18:23 +01:00