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    Subject[PATCH 20/24] x86/oprofile: op_model_athlon.c: Fix counter reset when reenabling IBS OP
    Date
    Signed-off-by: Robert Richter <robert.richter@amd.com>
    ---
    arch/x86/oprofile/op_model_athlon.c | 1 +
    1 files changed, 1 insertions(+), 0 deletions(-)

    diff --git a/arch/x86/oprofile/op_model_athlon.c b/arch/x86/oprofile/op_model_athlon.c
    index a3a2058..9c8c8c5 100644
    --- a/arch/x86/oprofile/op_model_athlon.c
    +++ b/arch/x86/oprofile/op_model_athlon.c
    @@ -251,6 +251,7 @@ op_amd_handle_ibs(struct pt_regs * const regs,
    (unsigned int *)&ibs_op,
    IBS_OP_BEGIN);
    rdmsr(MSR_AMD64_IBSOPCTL, low, high);
    + high = 0;
    low &= ~IBS_OP_LOW_VALID_BIT;
    low |= IBS_OP_LOW_ENABLE;
    wrmsr(MSR_AMD64_IBSOPCTL, low, high);
    --
    1.5.5.4



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