Use the newly introduced i8259 proxy "isa-pic" which allows for wiring up devices in the southbridge where the virtualization technology used (KVM, TCG, Xen) is not yet known.
Signed-off-by: Bernhard Beschow <shen...@gmail.com> --- hw/i386/pc_piix.c | 15 +++++++++------ hw/isa/Kconfig | 1 + hw/isa/piix3.c | 10 +++++++++- include/hw/southbridge/piix.h | 4 ++-- 4 files changed, 21 insertions(+), 9 deletions(-) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index c96d989636..f81e91220f 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -207,10 +207,11 @@ static void pc_init1(MachineState *machine, gsi_state = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled); if (pcmc->pci_enabled) { - PIIX3State *piix3; + DeviceState *dev; PCIDevice *pci_dev; const char *type = xen_enabled() ? TYPE_PIIX3_XEN_DEVICE : TYPE_PIIX3_DEVICE; + int i; pci_bus = i440fx_init(pci_type, i440fx_host, @@ -231,10 +232,12 @@ static void pc_init1(MachineState *machine, x86_machine_is_smm_enabled(x86ms), &error_abort); pci_realize_and_unref(pci_dev, pci_bus, &error_fatal); - piix3 = PIIX3_PCI_DEVICE(pci_dev); - piix3->pic = x86ms->gsi; - piix3_devfn = piix3->dev.devfn; - isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(piix3), "isa.0")); + dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "pic")); + for (i = 0; i < ISA_NUM_IRQS; i++) { + qdev_connect_gpio_out(dev, i, x86ms->gsi[i]); + } + piix3_devfn = pci_dev->devfn; + isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0")); rtc_state = ISA_DEVICE(object_resolve_path_component(OBJECT(pci_dev), "rtc")); piix4_pm = object_resolve_path_component(OBJECT(pci_dev), "pm"); @@ -243,6 +246,7 @@ static void pc_init1(MachineState *machine, piix4_pm = NULL; isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, &error_abort); + isa_bus_irqs(isa_bus, x86ms->gsi); rtc_state = isa_new(TYPE_MC146818_RTC); qdev_prop_set_int32(DEVICE(rtc_state), "base_year", 2000); @@ -251,7 +255,6 @@ static void pc_init1(MachineState *machine, i8257_dma_init(isa_bus, 0); pcms->hpet_enabled = false; } - isa_bus_irqs(isa_bus, x86ms->gsi); if (x86ms->pic == ON_OFF_AUTO_ON || x86ms->pic == ON_OFF_AUTO_AUTO) { pc_i8259_create(isa_bus, gsi_state->i8259_irq); diff --git a/hw/isa/Kconfig b/hw/isa/Kconfig index f10daa26bc..24e79a9a41 100644 --- a/hw/isa/Kconfig +++ b/hw/isa/Kconfig @@ -35,6 +35,7 @@ config PIIX3 bool select ACPI_PIIX4 select I8257 + select I8259 select ISA_BUS select MC146818RTC select USB_UHCI diff --git a/hw/isa/piix3.c b/hw/isa/piix3.c index a4b8ebd5f5..ce3ec84e22 100644 --- a/hw/isa/piix3.c +++ b/hw/isa/piix3.c @@ -40,7 +40,7 @@ static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq) { - qemu_set_irq(piix3->pic[pic_irq], + qemu_set_irq(piix3->pic.in_irqs[pic_irq], !!(piix3->pic_levels & (((1ULL << PIIX_NUM_PIRQS) - 1) << (pic_irq * PIIX_NUM_PIRQS)))); @@ -309,6 +309,13 @@ static void pci_piix3_realize(PCIDevice *dev, Error **errp) return; } + /* PIC */ + if (!qdev_realize(DEVICE(&d->pic), BUS(isa_bus), errp)) { + return; + } + + isa_bus_irqs(isa_bus, d->pic.in_irqs); + memory_region_init_io(&d->rcr_mem, OBJECT(dev), &rcr_ops, d, "piix3-reset-control", 1); memory_region_add_subregion_overlap(pci_address_space_io(dev), @@ -361,6 +368,7 @@ static void pci_piix3_init(Object *obj) { PIIX3State *d = PIIX3_PCI_DEVICE(obj); + object_initialize_child(obj, "pic", &d->pic, TYPE_ISA_PIC); object_initialize_child(obj, "rtc", &d->rtc, TYPE_MC146818_RTC); } diff --git a/include/hw/southbridge/piix.h b/include/hw/southbridge/piix.h index 1c291cc954..7178147b75 100644 --- a/include/hw/southbridge/piix.h +++ b/include/hw/southbridge/piix.h @@ -15,6 +15,7 @@ #include "hw/pci/pci.h" #include "qom/object.h" #include "hw/acpi/piix4.h" +#include "hw/intc/i8259.h" #include "hw/rtc/mc146818rtc.h" #include "hw/usb/hcd-uhci.h" @@ -50,11 +51,10 @@ struct PIIXState { #endif uint64_t pic_levels; - qemu_irq *pic; - /* This member isn't used. Just for save/load compatibility */ int32_t pci_irq_levels_vmstate[PIIX_NUM_PIRQS]; + ISAPICState pic; RTCState rtc; UHCIState uhci; PIIX4PMState pm; -- 2.38.1