Re: [Xen-devel] [PATCH v2 11/45] ARM: timer: Handle level triggered IRQs correctly

2018-03-18 Thread Julien Grall
Hi Andre, On 03/15/2018 08:30 PM, Andre Przywara wrote: The ARM Generic Timer uses a level-sensitive interrupt semantic. We easily catch when the line goes high, as this triggers the hardware IRQ. However we have to sync the state of the interrupt condition at certain points to catch when the li

[Xen-devel] [PATCH v2 11/45] ARM: timer: Handle level triggered IRQs correctly

2018-03-15 Thread Andre Przywara
The ARM Generic Timer uses a level-sensitive interrupt semantic. We easily catch when the line goes high, as this triggers the hardware IRQ. However we have to sync the state of the interrupt condition at certain points to catch when the line goes low and we can remove the vtimer vIRQ from the vGIC