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    Subject[PATCH v11 05/13] x86/resctrl: Include new features in command line options
    Date
    Add the command line options to enable or disable the new resctrl features.
    smba : Slow Memory Bandwidth Allocation
    bmec : Bandwidth Monitor Event Configuration.

    Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
    Signed-off-by: Babu Moger <babu.moger@amd.com>
    ---
    Documentation/admin-guide/kernel-parameters.txt | 2 +-
    arch/x86/kernel/cpu/resctrl/core.c | 4 ++++
    2 files changed, 5 insertions(+), 1 deletion(-)

    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)

    --
    2.34.1
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