Signed-off-by: Hervé Poussineau <hpous...@reactos.org>
---
hw/pc.h | 2 +-
hw/pc_piix.c | 3 ++-
hw/piix_pci.c | 45 ++++++++++++++++++++++++++++++++++++++++-----
3 files changed, 43 insertions(+), 7 deletions(-)
diff --git a/hw/pc.h b/hw/pc.h
index c546037..746973f 100644
--- a/hw/pc.h
+++ b/hw/pc.h
@@ -181,7 +181,7 @@ struct PCII440FXState;
typedef struct PCII440FXState PCII440FXState;
PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix_devfn,
- qemu_irq *pic,
+ ISABus **isa_bus,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
ram_addr_t ram_size,
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index f971d52..7ccbfca 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_piix.c
@@ -84,6 +84,7 @@ static void pc_init1(MemoryRegion *system_memory,
int i;
ram_addr_t below_4g_mem_size, above_4g_mem_size;
PCIBus *pci_bus;
+ ISABus *isa_bus;
PCII440FXState *i440fx_state;
int piix3_devfn = -1;
qemu_irq *cpu_irq;
@@ -134,7 +135,7 @@ static void pc_init1(MemoryRegion *system_memory,
isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
if (pci_enabled) {
- pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq,
+ pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, &isa_bus,
system_memory, system_io, ram_size,
below_4g_mem_size,
0x100000000ULL - below_4g_mem_size,
diff --git a/hw/piix_pci.c b/hw/piix_pci.c
index 287bd19..76464f6 100644
--- a/hw/piix_pci.c
+++ b/hw/piix_pci.c
@@ -30,6 +30,7 @@
#include "sysbus.h"
#include "range.h"
#include "xen.h"
+#include "exec-memory.h"
/*
* I440FX chipset data sheet.
@@ -45,6 +46,7 @@ typedef PCIHostState I440FXState;
typedef struct PIIX3State {
PCIDevice dev;
+ ISABus bus;
/*
* bitmap to track pic levels.
@@ -263,7 +265,7 @@ static int i440fx_initfn(PCIDevice *dev)
static PCIBus *i440fx_common_init(const char *device_name,
PCII440FXState **pi440fx_state,
int *piix3_devfn,
- qemu_irq *pic,
+ ISABus **isa_bus,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
ram_addr_t ram_size,
@@ -324,7 +326,7 @@ static PCIBus *i440fx_common_init(const char *device_name,
pci_bus_irqs(b, piix3_set_irq, pci_slot_get_pirq, piix3,
PIIX_NUM_PIRQS);
}
- piix3->pic = pic;
+ *isa_bus = &piix3->bus;
(*pi440fx_state)->piix3 = piix3;
@@ -341,7 +343,7 @@ static PCIBus *i440fx_common_init(const char *device_name,
}
PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int *piix3_devfn,
- qemu_irq *pic,
+ ISABus **isa_bus,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io,
ram_addr_t ram_size,
@@ -354,7 +356,7 @@ PCIBus *i440fx_init(PCII440FXState **pi440fx_state, int
*piix3_devfn,
{
PCIBus *b;
- b = i440fx_common_init("i440FX", pi440fx_state, piix3_devfn, pic,
+ b = i440fx_common_init("i440FX", pi440fx_state, piix3_devfn, isa_bus,
address_space_mem, address_space_io, ram_size,
pci_hole_start, pci_hole_size,
pci_hole64_size, pci_hole64_size,
@@ -500,11 +502,44 @@ static const VMStateDescription vmstate_piix3 = {
}
};
+static void piix3_bus_set_irqs(ISABus *bus, qemu_irq *irqs)
+{
+ PIIX3State *d = container_of(bus, PIIX3State, bus);
+ d->pic = irqs;
+}
+
+static qemu_irq piix3_bus_get_irq(ISABus *bus, int isairq)
+{
+ PIIX3State *d = container_of(bus, PIIX3State, bus);
+ if (isairq < 0 || isairq >= PIIX_NUM_PIC_IRQS) {
+ hw_error("isa irq %d invalid", isairq);
+ }
+ return d->pic[isairq];
+}
+
+static MemoryRegion *piix3_bus_get_io_space(ISABus *bus)
+{
+ PIIX3State *d = container_of(bus, PIIX3State, bus);
+ return pci_address_space_io(&d->dev);
+}
+
+static MemoryRegion *piix3_bus_get_memory_space(ISABus *bus)
+{
+ return get_system_memory();
+}
+
+static ISABusOps piix3_bus_ops = {
+ .set_irqs = piix3_bus_set_irqs,
+ .get_irq = piix3_bus_get_irq,
+ .get_io_space = piix3_bus_get_io_space,
+ .get_memory_space = piix3_bus_get_memory_space,
+};
+
static int piix3_initfn(PCIDevice *dev)
{
PIIX3State *d = DO_UPCAST(PIIX3State, dev, dev);
- isa_bus_bridge_init(&d->dev.qdev, pci_address_space_io(dev));
+ isa_bus_new(&d->bus, &piix3_bus_ops, &dev->qdev);
qemu_register_reset(piix3_reset, d);
return 0;
}
--
1.7.6.3
