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To do so we need to try to invoke scheduler by calling try_preempt(), while not in nested IRQ handler. Signed-off-by: Volodymyr Babchuk --- xen/arch/arm/traps.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c index 6fa135050b..98a4fb4904 100644 --- a/xen/arch/arm/traps.c +++ b/xen/arch/arm/traps.c @@ -2260,7 +2260,14 @@ void do_trap_guest_serror(struct cpu_user_regs *regs= ) =20 void do_trap_irq(struct cpu_user_regs *regs) { + static DEFINE_PER_CPU(unsigned int, irq_entry_cnt); + + this_cpu(irq_entry_cnt)++; gic_interrupt(regs, 0); + this_cpu(irq_entry_cnt)--; + + if (this_cpu(irq_entry_cnt) =3D=3D 0) + try_preempt(true); } =20 void do_trap_fiq(struct cpu_user_regs *regs) --=20 2.29.2