Patchwork [PATCHv2,3/8] Add get_dev_path callback to ISA bus in qdev.

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Submitter Gleb Natapov
Date Oct. 31, 2010, 11:40 a.m.
Message ID <1288525209-3303-4-git-send-email-gleb@redhat.com>
Download mbox | patch
Permalink /patch/69706/
State New
Headers show

Comments

Gleb Natapov - Oct. 31, 2010, 11:40 a.m.
Use device ioports to create unique device path.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 hw/isa-bus.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/isa-bus.c b/hw/isa-bus.c
index c1275e8..c523302 100644
--- a/hw/isa-bus.c
+++ b/hw/isa-bus.c
@@ -31,11 +31,13 @@  static ISABus *isabus;
 target_phys_addr_t isa_mem_base = 0;
 
 static void isabus_dev_print(Monitor *mon, DeviceState *dev, int indent);
+static char *isabus_get_dev_path(DeviceState *dev);
 
 static struct BusInfo isa_bus_info = {
     .name      = "ISA",
     .size      = sizeof(ISABus),
     .print_dev = isabus_dev_print,
+    .get_dev_path = isabus_get_dev_path,
 };
 
 ISABus *isa_bus_new(DeviceState *dev)
@@ -188,4 +190,17 @@  static void isabus_register_devices(void)
     sysbus_register_withprop(&isabus_bridge_info);
 }
 
+static char *isabus_get_dev_path(DeviceState *dev)
+{
+    ISADevice *d = (ISADevice*)dev;
+    char path[40];
+    int off;
+
+    off = snprintf(path, sizeof(path), "%s", qdev_driver_name(dev));
+    if (d->nioports)
+        snprintf(path + off, sizeof(path) - off, "@%04x", d->ioports[0]);
+
+    return strdup(path);
+}
+
 device_init(isabus_register_devices)