Hi Will, On 12/5/19 10:02 AM, Will Deacon wrote: > On Wed, Dec 04, 2019 at 09:44:26PM +0100, Eric Auger wrote: >> ARMv8.1-PMU supports 16-bit evtCount whereas 8.0 only supports >> 10 bits. >> >> On Seatlle which has an 8.0 PMU implementation, evtCount[15:10] >> are not read as 0, as expected. Fix that by applying a mask on >> the selected event that depends on the PMU version. > > Are you sure about that? These bits are RES0 in 8.0 afaict, so this would be > a CPU erratum. Have you checked the SDEN document (I haven't)? You're right. It is RES0 and not RAZ. My mistake. Please ignore this patch. Thank you for the feedback. Eric > > Will > _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
