From 9c11a8ac886ccbb5f8e1b08e8ae12f045d783031 Mon Sep 17 00:00:00 2001 From: Anthony PERARD Date: Wed, 30 Jun 2010 17:50:10 +0100 Subject: xen: Introduce Xen Interrupt Controller Every set_irq call makes a Xen hypercall. Signed-off-by: Anthony PERARD Signed-off-by: Stefano Stabellini Signed-off-by: Alexander Graf --- hw/pc_piix.c | 8 ++++++-- hw/xen.h | 2 ++ 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'hw') diff --git a/hw/pc_piix.c b/hw/pc_piix.c index 9353b91100..62cdf71daa 100644 --- a/hw/pc_piix.c +++ b/hw/pc_piix.c @@ -110,8 +110,12 @@ static void pc_init1(ram_addr_t ram_size, below_4g_mem_size, above_4g_mem_size); } - cpu_irq = pc_allocate_cpu_irq(); - i8259 = i8259_init(cpu_irq[0]); + if (!xen_enabled()) { + cpu_irq = pc_allocate_cpu_irq(); + i8259 = i8259_init(cpu_irq[0]); + } else { + i8259 = xen_interrupt_controller_init(); + } isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state)); isa_irq_state->i8259 = i8259; if (pci_enabled) { diff --git a/hw/xen.h b/hw/xen.h index a4096cadfd..9f00c0bfed 100644 --- a/hw/xen.h +++ b/hw/xen.h @@ -35,6 +35,8 @@ int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num); void xen_piix3_set_irq(void *opaque, int irq_num, int level); void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len); +qemu_irq *xen_interrupt_controller_init(void); + int xen_init(void); int xen_hvm_init(void); void xen_vcpu_init(void); -- cgit v1.2.3