[PATCHv6 07/16] Add get_dev_path callback for system bus.

Gleb Natapov
2010-11-17T16:44:11Z

Prints out mmio or pio used to access child device.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
hw/pci_host.c | 2 ++
hw/sysbus.c | 30 ++++++++++++++++++++++++++++++
hw/sysbus.h | 4 ++++
3 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/hw/pci_host.c b/hw/pci_host.c
index bc5b771..28d45bf 100644
--- a/hw/pci_host.c
+++ b/hw/pci_host.c
@@ -197,6 +197,7 @@ void pci_host_conf_register_ioport(pio_addr_t ioport, PCIHostState *s)
{
pci_host_init(s);
register_ioport_simple(&s->conf_noswap_handler, ioport, 4, 4);
+ sysbus_init_ioports(&s->busdev, ioport, 4);
}

int pci_host_data_register_mmio(PCIHostState *s, int swap)
@@ -215,4 +216,5 @@ void pci_host_data_register_ioport(pio_addr_t ioport, PCIHostState *s)
register_ioport_simple(&s->data_noswap_handler, ioport, 4, 1);
register_ioport_simple(&s->data_noswap_handler, ioport, 4, 2);
register_ioport_simple(&s->data_noswap_handler, ioport, 4, 4);
+ sysbus_init_ioports(&s->busdev, ioport, 4);
}
diff --git a/hw/sysbus.c b/hw/sysbus.c
index d817721..1583bd8 100644
--- a/hw/sysbus.c
+++ b/hw/sysbus.c
@@ -22,11 +22,13 @@
#include "monitor.h"

static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent);
+static char *sysbus_get_fw_dev_path(DeviceState *dev);

struct BusInfo system_bus_info = {
.name = "System",
.size = sizeof(BusState),
.print_dev = sysbus_dev_print,
+ .get_fw_dev_path = sysbus_get_fw_dev_path,
};

void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq)
@@ -106,6 +108,16 @@ void sysbus_init_mmio_cb(SysBusDevice *dev, target_phys_addr_t size,
dev->mmio[n].cb = cb;
}

+void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size)
+{
+ pio_addr_t i;
+
+ for (i = 0; i < size; i++) {
+ assert(dev->num_pio < QDEV_MAX_PIO);
+ dev->pio[dev->num_pio++] = ioport++;
+ }
+}
+
static int sysbus_device_init(DeviceState *dev, DeviceInfo *base)
{
SysBusDeviceInfo *info = container_of(base, SysBusDeviceInfo, qdev);
@@ -171,3 +183,21 @@ static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent)
indent, "", s->mmio[i].addr, s->mmio[i].size);
}
}
+
+static char *sysbus_get_fw_dev_path(DeviceState *dev)
+{
+ SysBusDevice *s = sysbus_from_qdev(dev);
+ char path[40];
+ int off;
+
+ off = snprintf(path, sizeof(path), "%s", qdev_fw_name(dev));
+
+ if (s->num_mmio) {
+ snprintf(path + off, sizeof(path) - off, "@"TARGET_FMT_plx,
+ s->mmio[0].addr);
+ } else if (s->num_pio) {
+ snprintf(path + off, sizeof(path) - off, "@i%04x", s->pio[0]);
+ }
+
+ return strdup(path);
+}
diff --git a/hw/sysbus.h b/hw/sysbus.h
index 5980901..e9eb618 100644
--- a/hw/sysbus.h
+++ b/hw/sysbus.h
@@ -6,6 +6,7 @@
#include "qdev.h"

#define QDEV_MAX_MMIO 32
+#define QDEV_MAX_PIO 32
#define QDEV_MAX_IRQ 256

typedef struct SysBusDevice SysBusDevice;
@@ -23,6 +24,8 @@ struct SysBusDevice {
mmio_mapfunc cb;
ram_addr_t iofunc;
} mmio[QDEV_MAX_MMIO];
+ int num_pio;
+ pio_addr_t pio[QDEV_MAX_PIO];
};

typedef int (*sysbus_initfn)(SysBusDevice *dev);
@@ -45,6 +48,7 @@ void sysbus_init_mmio_cb(SysBusDevice *dev, target_phys_addr_t size,
mmio_mapfunc cb);
void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
+void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size);

void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
--
1.7.2.3