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    Subject[PATCH 3/3] x86/split_lock: Add Tremont family CPU models
    Date
    Tremont CPUs support IA32_CORE_CAPABILITIES bits to indicate
    whether speciifc SKUs have support for split lock detection.

    Fixes: 6650cdd9a8cc ("x86/split_lock: Enable split lock detection by kernel")
    Cc: <stable@vger.kernel.org>
    Signed-off-by: Tony Luck <tony.luck@intel.com>
    ---
    arch/x86/kernel/cpu/intel.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
    index 3b43b2c91054..d559481b54a6 100644
    --- a/arch/x86/kernel/cpu/intel.c
    +++ b/arch/x86/kernel/cpu/intel.c
    @@ -1130,6 +1130,9 @@ void switch_to_sld(unsigned long tifn)
    static const struct x86_cpu_id split_lock_cpu_ids[] __initconst = {
    X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, 0),
    X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, 0),
    + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT, 1),
    + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, 1),
    + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L, 1),
    {}
    };

    --
    2.21.1
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