Re: [PATCH V3 1/6] perf/core: Adding PMU driver specific configuration

Mathieu Poirier
2016-08-05T15:41:22Z

On 4 August 2016 at 10:59, Peter Zijlstra <peterz@infradead.org> wrote:
> On Thu, Jul 28, 2016 at 03:42:18PM -0600, Mathieu Poirier wrote:
>> This patch somewhat mimics the work done on address filters to
>> add the infrastructure needed to pass PMU specific HW
>> configuration to the driver before a session starts.
>
> I'm thinking we want to specify a syntax and validate the string matches
> the syntax in the generic code.

The syntax is checked in the lexer making sure that nothing other than
@cfg or @cfg=config is sent to the kernel. From there validation is
done in the PMU driver that implements the set_drv_configs()
interface.

I am not sure to get you point here - can I ask you to provide more details?

Thanks,
Mathieu