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| author | Babu Moger <babu.moger@amd.com> | 2023-01-13 16:20:31 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-01-23 17:38:38 +0100 |
| commit | a76f65c89f928b87c49d88b7fd60cb4d7203ffff (patch) | |
| tree | f261c6fd9bb08fa818f8b3649e63ecaffb17a5f5 | |
| parent | x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag (diff) | |
| download | linux-a76f65c89f928b87c49d88b7fd60cb4d7203ffff.tar.xz linux-a76f65c89f928b87c49d88b7fd60cb4d7203ffff.zip | |
x86/resctrl: Include new features in command line options
Add the command line options to enable or disable the new resctrl features:
smba: Slow Memory Bandwidth Allocation
bmec: Bandwidth Monitor Event Configuration.
Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/r/20230113152039.770054-6-babu.moger@amd.com
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/resctrl/core.c | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 6cfa6e3996cf..0ee891133d76 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5221,7 +5221,7 @@ rdt= [HW,X86,RDT] Turn on/off individual RDT features. List is: cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, l2cdp, - mba. + mba, smba, bmec. E.g. to turn on cmt and turn off mba use: rdt=cmt,!mba diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c index f6af3ac1ef20..10a8c9d96f32 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -659,6 +659,8 @@ enum { RDT_FLAG_L2_CAT, RDT_FLAG_L2_CDP, RDT_FLAG_MBA, + RDT_FLAG_SMBA, + RDT_FLAG_BMEC, }; #define RDT_OPT(idx, n, f) \ @@ -682,6 +684,8 @@ static struct rdt_options rdt_options[] __initdata = { RDT_OPT(RDT_FLAG_L2_CAT, "l2cat", X86_FEATURE_CAT_L2), RDT_OPT(RDT_FLAG_L2_CDP, "l2cdp", X86_FEATURE_CDP_L2), RDT_OPT(RDT_FLAG_MBA, "mba", X86_FEATURE_MBA), + RDT_OPT(RDT_FLAG_SMBA, "smba", X86_FEATURE_SMBA), + RDT_OPT(RDT_FLAG_BMEC, "bmec", X86_FEATURE_BMEC), }; #define NUM_RDT_OPTIONS ARRAY_SIZE(rdt_options) |