> Ok I see now where this patch doesn't make sense. > With the latest kvm tree I get: > > sudo ./x86-run x86/pmu.flat -smp 1 -cpu host | grep -v PASS > > > qemu-system-x86_64 -enable-kvm -device pc-testdev -device > isa-debug-exit,iobase=0xf4,iosize=0x4 -display none -serial stdio > -device pci-testdev -kernel x86/pmu.flat -smp 1 -cpu host > enabling apic > paging enabled > cr0 = 80010011 > cr3 = 7fff000 > cr4 = 20 > PMU version: 2 > GP counters: 4 > GP counter width: 48 > Mask length: 7 > Fixed counters: 3 > Fixed counter width: 48 > FAIL: all counters > > SUMMARY: 67 tests, 1 unexpected failures > Return value from qemu: 3 > > I've tested this on a few Intel platforms (sandybridge/haswell), I'll > look into the code more then. Are you using the NMI watchdog in the host? It eats one PMU counter and makes this test fail. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
