Re: [patch 1/6] x86, perf, cqm: Document PQR MSR abuse

[Matt Fleming]

On Tue, 19 May, at 12:00:50AM, Thomas Gleixner wrote:
> The cqm code acts like it owns the PQR MSR completely. That's not true
> because only the lower 10 bits are used for CQM. The upper 32bits are
> used for CLass Of Service ID (closid). Document the abuse. Will be
> fixed in a later patch.
> 
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> ---
>  arch/x86/kernel/cpu/perf_event_intel_cqm.c |   15 +++++++++++++--
>  1 file changed, 13 insertions(+), 2 deletions(-)

Acked-by: Matt Fleming <matt.fleming@xxxxxxxxx>

-- 
Matt Fleming, Intel Open Source Technology Center
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