Messages in this thread | | | Date | Wed, 23 Mar 2016 20:59:06 +0000 | From | Matt Fleming <> | Subject | Re: [tip:perf/urgent] perf/x86/mbm: Implement RMID recycling |
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On Mon, 21 Mar, at 11:27:55AM, Vikas Shivappa wrote: > > The init_mbm_sample calls the update_sample to read the MSR in IPI .. Since > the count is also in IPI , they should not trash each other ? > > Basically all the MSR read/writes are in high irql , except for the mbm > overflow timer and read calls which holds an irqsave spinlock.
Good point! This should be fine.
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