From 3a8233dc1fe2fb5d0b51c9ae895e27b96a6d830e Mon Sep 17 00:00:00 2001 From: Jason Thorpe Date: Sun, 13 Jun 2021 14:15:47 -0700 Subject: hw/alpha: Set minimum PCI device ID to 1 to match Clipper IRQ mappings Since we are emulating a Clipper device topology, we need to set the minimum PCI device ID to 1, as there is no IRQ mapping for a device at ID 0 (see sys_dp264.c:clipper_map_irq()). - Add a 'devfn_min' argument to typhoon_init(). Pass that argument along to pci_register_root_bus(). - In clipper_init(), pass PCI_DEVFN(1, 0) as the minimum PCI device ID/function. Signed-off-by: Jason Thorpe Message-Id: <20210613211549.18094-3-thorpej@me.com> Signed-off-by: Richard Henderson --- hw/alpha/typhoon.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'hw/alpha/typhoon.c') diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c index 87020cbe0d..fa31a2f286 100644 --- a/hw/alpha/typhoon.c +++ b/hw/alpha/typhoon.c @@ -815,7 +815,8 @@ static void typhoon_alarm_timer(void *opaque) } PCIBus *typhoon_init(MemoryRegion *ram, ISABus **isa_bus, qemu_irq *p_rtc_irq, - AlphaCPU *cpus[4], pci_map_irq_fn sys_map_irq) + AlphaCPU *cpus[4], pci_map_irq_fn sys_map_irq, + uint8_t devfn_min) { MemoryRegion *addr_space = get_system_memory(); DeviceState *dev; @@ -885,7 +886,7 @@ PCIBus *typhoon_init(MemoryRegion *ram, ISABus **isa_bus, qemu_irq *p_rtc_irq, b = pci_register_root_bus(dev, "pci", typhoon_set_irq, sys_map_irq, s, &s->pchip.reg_mem, &s->pchip.reg_io, - 0, 64, TYPE_PCI_BUS); + devfn_min, 64, TYPE_PCI_BUS); phb->bus = b; sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); -- cgit 1.4.1