On Wed, Jul 26, 2017 at 01:42:49PM +0200, Christoffer Dall wrote: > The current timer test relies on testing the pending state of the timer > before the interrupt handler has run which could lower the pending > signal again (because it masks the timer output signal). > > What we really want is to make sure the output signal from the timer as > perceived by the virtual interrupt controller is low when the timer is > programmed some time far in the future. The proper way to do that is to > disable the timer interrupt on the distributor and then reading its > pending state. > > Signed-off-by: Christoffer Dall <cdall@xxxxxxxxxx> > --- > arm/timer.c | 41 ++++++++++++++++++++++++++++++++++------- > 1 file changed, 34 insertions(+), 7 deletions(-) > Hi Christoffer, With this patch the ptimer "not pending before" test always fails on KVM for me (tested on mustang and thunderx). Have you seen that? Thanks, drew _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
