Changes from v6: * Add a new pmu testing for KVM mode in config file * Add additional init code, including setting PMCNTENSET and PMCCFILTR, before reading PMCCNTR. ARMv7 support is also provided * Add cycle counter init code for CPI testing * Fix pmu_data compilation issue (for gcc 4.8.5) * Commit comments were updated
NOTE: 1) Current KVM code has bugs in handling PMCCFILTR write. A fix (see below) is required for this unit testing code to work correctly under KVM mode. https://lists.cs.columbia.edu/pipermail/kvmarm/2016-November/022134.html. 2) Because the code was changed, Drew's original reviewed-by needs to be acknowledged by him again.
