hw/isa/vt82c686: Instantiate IDE function in host device

The IDE function is closely tied to the ISA function (e.g. the IDE
interrupt routing happens there), so it makes sense that the IDE
function is instantiated within the south bridge itself.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220901114127.53914-7-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

5 files changed, 26 insertions, 10 deletions

diff --git a/hw/isa/Kconfig b/hw/isa/Kconfig
index d42143a..20de7e9 100644
--- a/hw/isa/Kconfig
+++ b/hw/isa/Kconfig
@@ -53,6 +53,7 @@ config VT82C686
     select I8254
     select I8257
     select I8259
+    select IDE_VIA
     select MC146818RTC
     select PARALLEL
 
diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index 37e37b3..63c1e3b 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -17,6 +17,7 @@
 #include "hw/isa/vt82c686.h"
 #include "hw/pci/pci.h"
 #include "hw/qdev-properties.h"
+#include "hw/ide/pci.h"
 #include "hw/isa/isa.h"
 #include "hw/isa/superio.h"
 #include "hw/intc/i8259.h"
@@ -544,6 +545,7 @@ struct ViaISAState {
     qemu_irq cpu_intr;
     qemu_irq *isa_irqs;
     ViaSuperIOState via_sio;
+    PCIIDEState ide;
 };
 
 static const VMStateDescription vmstate_via = {
@@ -556,10 +558,18 @@ static const VMStateDescription vmstate_via = {
     }
 };
 
+static void via_isa_init(Object *obj)
+{
+    ViaISAState *s = VIA_ISA(obj);
+
+    object_initialize_child(obj, "ide", &s->ide, TYPE_VIA_IDE);
+}
+
 static const TypeInfo via_isa_info = {
     .name          = TYPE_VIA_ISA,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(ViaISAState),
+    .instance_init = via_isa_init,
     .abstract      = true,
     .interfaces    = (InterfaceInfo[]) {
         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
@@ -583,6 +593,7 @@ static void via_isa_realize(PCIDevice *d, Error **errp)
 {
     ViaISAState *s = VIA_ISA(d);
     DeviceState *dev = DEVICE(d);
+    PCIBus *pci_bus = pci_get_bus(d);
     qemu_irq *isa_irq;
     ISABus *isa_bus;
     int i;
@@ -612,6 +623,12 @@ static void via_isa_realize(PCIDevice *d, Error **errp)
     if (!qdev_realize(DEVICE(&s->via_sio), BUS(isa_bus), errp)) {
         return;
     }
+
+    /* Function 1: IDE */
+    qdev_prop_set_int32(DEVICE(&s->ide), "addr", d->devfn + 1);
+    if (!qdev_realize(DEVICE(&s->ide), BUS(pci_bus), errp)) {
+        return;
+    }
 }
 
 /* TYPE_VT82C686B_ISA */
diff --git a/hw/mips/fuloong2e.c b/hw/mips/fuloong2e.c
index 44225fb..3260590 100644
--- a/hw/mips/fuloong2e.c
+++ b/hw/mips/fuloong2e.c
@@ -199,13 +199,13 @@ static void main_cpu_reset(void *opaque)
 static void vt82c686b_southbridge_init(PCIBus *pci_bus, int slot, qemu_irq intc,
                                        I2CBus **i2c_bus)
 {
-    PCIDevice *dev;
+    PCIDevice *dev, *via;
 
-    dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(slot, 0), true,
+    via = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(slot, 0), true,
                                           TYPE_VT82C686B_ISA);
-    qdev_connect_gpio_out(DEVICE(dev), 0, intc);
+    qdev_connect_gpio_out(DEVICE(via), 0, intc);
 
-    dev = pci_create_simple(pci_bus, PCI_DEVFN(slot, 1), TYPE_VIA_IDE);
+    dev = PCI_DEVICE(object_resolve_path_component(OBJECT(via), "ide"));
     pci_ide_create_devs(dev);
 
     pci_create_simple(pci_bus, PCI_DEVFN(slot, 2), "vt82c686b-usb-uhci");
diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
index 791fe78..76a4612 100644
--- a/hw/ppc/Kconfig
+++ b/hw/ppc/Kconfig
@@ -74,7 +74,6 @@ config PEGASOS2
     imply ATI_VGA
     select MV64361
     select VT82C686
-    select IDE_VIA
     select SMBUS_EEPROM
     select VOF
 # This should come with VT82C686
diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c
index 506f273..dcb6642 100644
--- a/hw/ppc/pegasos2.c
+++ b/hw/ppc/pegasos2.c
@@ -102,7 +102,7 @@ static void pegasos2_init(MachineState *machine)
     CPUPPCState *env;
     MemoryRegion *rom = g_new(MemoryRegion, 1);
     PCIBus *pci_bus;
-    PCIDevice *dev;
+    PCIDevice *dev, *via;
     I2CBus *i2c_bus;
     const char *fwname = machine->firmware ?: PROM_FILENAME;
     char *filename;
@@ -160,13 +160,12 @@ static void pegasos2_init(MachineState *machine)
 
     /* VIA VT8231 South Bridge (multifunction PCI device) */
     /* VT8231 function 0: PCI-to-ISA Bridge */
-    dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true,
+    via = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(12, 0), true,
                                           TYPE_VT8231_ISA);
-    qdev_connect_gpio_out(DEVICE(dev), 0,
+    qdev_connect_gpio_out(DEVICE(via), 0,
                           qdev_get_gpio_in_named(pm->mv, "gpp", 31));
 
-    /* VT8231 function 1: IDE Controller */
-    dev = pci_create_simple(pci_bus, PCI_DEVFN(12, 1), TYPE_VIA_IDE);
+    dev = PCI_DEVICE(object_resolve_path_component(OBJECT(via), "ide"));
     pci_ide_create_devs(dev);
 
     /* VT8231 function 2-3: USB Ports */