diff --git a/xen/arch/x86/io_apic.c b/xen/arch/x86/io_apic.c index 99a78da847..1f653510c5 100644 --- a/xen/arch/x86/io_apic.c +++ b/xen/arch/x86/io_apic.c @@ -1634,11 +1634,14 @@ static void mask_and_ack_level_ioapic_irq (unsigned int irq) ack_APIC_irq(); + if ( directed_eoi_enabled ) + return; + if ((irq_desc[irq].status & IRQ_MOVE_PENDING) && !io_apic_level_ack_pending(irq)) - move_native_irq(irq); + move_masked_irq(irq); - if (!directed_eoi_enabled && !(v & (1 << (i & 0x1f)))) { + if ( !(v & (1 << (i & 0x1f))) ) { atomic_inc(&irq_mis_count); spin_lock(&ioapic_lock); __edge_IO_APIC_irq(irq); @@ -1654,12 +1657,22 @@ static void end_level_ioapic_irq (unsigned int irq) if ( !ioapic_ack_new ) { - if ( irq_desc[irq].status & IRQ_DISABLED ) - return; - if ( directed_eoi_enabled ) + { + if ( !(irq_desc[irq].status & (IRQ_DISABLED|IRQ_MOVE_PENDING)) ) + { + eoi_IO_APIC_irq(irq); + return; + } + + mask_IO_APIC_irq(irq); eoi_IO_APIC_irq(irq); - else + if ( (irq_desc[irq].status & IRQ_MOVE_PENDING) && + !io_apic_level_ack_pending(irq) ) + move_masked_irq(irq); + } + + if ( !(irq_desc[irq].status & IRQ_DISABLED) ) unmask_IO_APIC_irq(irq); return;