Re: [Xen-devel] [PATCH v3 for-4.5] xen/arm: clear UIE on hypervisor entry

2014-11-25 Thread Ian Campbell
On Fri, 2014-11-21 at 14:31 +, Stefano Stabellini wrote: > UIE being set can cause maintenance interrupts to occur when Xen writes > to one or more LR registers. The effect is a busy loop around the > interrupt handler in Xen > (http://marc.info/?l=xen-devel&m=141597517132682): everything gets

[Xen-devel] [PATCH v3 for-4.5] xen/arm: clear UIE on hypervisor entry

2014-11-21 Thread Stefano Stabellini
UIE being set can cause maintenance interrupts to occur when Xen writes to one or more LR registers. The effect is a busy loop around the interrupt handler in Xen (http://marc.info/?l=xen-devel&m=141597517132682): everything gets stuck. Signed-off-by: Stefano Stabellini Acked-by: Ian Campbell Re