Make first argument of monitor command pci_add work

Simply pass the PCI address through qemu_pci_hot_add_nic() to pci_nic_init() and through qemu_pci_hot_add_storage() to pci_create(). Before, pci_device_hot_add() passed along the PCI bus to use, and ignored any user-specified slot. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

Make first argument of monitor command pci_add work
Simply pass the PCI address through qemu_pci_hot_add_nic() to pci_nic_init() and through qemu_pci_hot_add_storage() to pci_create(). Before, pci_device_hot_add() passed along the PCI bus to use, and ignored any user-specified slot. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Markus Armbruster · Anthony Liguori
1 parent 5607c388
Showing 3 changed files with 28 additions and 44 deletions
hw/pci-hotplug.c
hw/pci.c
hw/pci.h
@@ -33,7 +33,8 @@
 #include "virtio-blk.h"
 #if defined(TARGET_I386) || defined(TARGET_X86_64)
-static PCIDevice *qemu_pci_hot_add_nic(Monitor *mon, const char *opts)
+static PCIDevice *qemu_pci_hot_add_nic(Monitor *mon,
+                                       const char *devaddr, const char *opts)
 {
     int ret;
@@ -44,7 +45,7 @@ static PCIDevice *qemu_pci_hot_add_nic(Monitor *mon, const char *opts)
         monitor_printf(mon, "Parameter addr not supported\n");
         return NULL;
     }
-    return pci_nic_init(&nd_table[ret], "rtl8139", NULL);
+    return pci_nic_init(&nd_table[ret], "rtl8139", devaddr);
 }
 void drive_hot_add(Monitor *mon, const char *pci_addr, const char *opts)
@@ -89,10 +90,11 @@ void drive_hot_add(Monitor *mon, const char *pci_addr, const char *opts)
     return;
 }
-static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon, PCIBus *pci_bus,
+static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon,
+                                           const char *devaddr,
                                            const char *opts)
 {
-    void *opaque = NULL;
+    PCIDevice *dev;
     int type = -1, drive_idx = -1;
     char buf[128];
@@ -103,63 +105,62 @@ static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon, PCIBus *pci_bus,
             type = IF_VIRTIO;
         } else {
             monitor_printf(mon, "type %s not a hotpluggable PCI device.\n", buf);
-            goto out;
+            return NULL;
         }
     } else {
         monitor_printf(mon, "no if= specified\n");
-        goto out;
+        return NULL;
     }
     if (get_param_value(buf, sizeof(buf), "file", opts)) {
         drive_idx = add_init_drive(opts);
         if (drive_idx < 0)
-            goto out;
+            return NULL;
     } else if (type == IF_VIRTIO) {
         monitor_printf(mon, "virtio requires a backing file/device.\n");
-        goto out;
+        return NULL;
     }
     switch (type) {
     case IF_SCSI:
-        opaque = pci_create_simple(pci_bus, -1, "lsi53c895a");
+        dev = pci_create("lsi53c895a", devaddr);
         break;
     case IF_VIRTIO:
-        opaque = pci_create_simple(pci_bus, -1, "virtio-blk-pci");
+        dev = pci_create("virtio-blk-pci", devaddr);
         break;
+    default:
+        dev = NULL;
     }
-
-out:
-    return opaque;
+    if (dev)
+        qdev_init(&dev->qdev);
+    return dev;
 }
 void pci_device_hot_add(Monitor *mon, const char *pci_addr, const char *type,
                         const char *opts)
 {
     PCIDevice *dev = NULL;
-    PCIBus *pci_bus;
-    int dom, bus;
-    unsigned slot;
+    const char *devaddr = NULL;
+    char buf[32];
-    if (pci_assign_devaddr(pci_addr, &dom, &bus, &slot)) {
+    if (!get_param_value(buf, sizeof(buf), "pci_addr", pci_addr)) {
         monitor_printf(mon, "Invalid pci address\n");
         return;
     }
-    pci_bus = pci_find_bus(bus);
-    if (!pci_bus) {
-        monitor_printf(mon, "Can't find pci_bus %d\n", bus);
-        return;
-    }
+    if (strcmp(buf, "auto"))
+        devaddr = buf;
     if (strcmp(type, "nic") == 0)
-        dev = qemu_pci_hot_add_nic(mon, opts);
+        dev = qemu_pci_hot_add_nic(mon, devaddr, opts);
     else if (strcmp(type, "storage") == 0)
-        dev = qemu_pci_hot_add_storage(mon, pci_bus, opts);
+        dev = qemu_pci_hot_add_storage(mon, devaddr, opts);
     else
         monitor_printf(mon, "invalid type: %s\n", type);
     if (dev) {
-        qemu_system_device_hot_add(bus, PCI_SLOT(dev->devfn), 1);
+        qemu_system_device_hot_add(pci_bus_num(dev->bus),
+                                   PCI_SLOT(dev->devfn), 1);
         monitor_printf(mon, "OK domain %d, bus %d, slot %d, function %d\n",
                        0, pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
                        PCI_FUNC(dev->devfn));
@@ -237,23 +237,6 @@ int pci_read_devaddr(const char *addr, int *domp, int *busp, unsigned *slotp)
     return pci_parse_devaddr(devaddr, domp, busp, slotp);
 }
-int pci_assign_devaddr(const char *addr, int *domp, int *busp, unsigned *slotp)
-{
-    char devaddr[32];
-
-    if (!get_param_value(devaddr, sizeof(devaddr), "pci_addr", addr))
-	return -1;
-
-    if (!strcmp(devaddr, "auto")) {
-        *domp = *busp = 0;
-        *slotp = -1;
-        /* want to support dom/bus auto-assign at some point */
-        return 0;
-    }
-
-    return pci_parse_devaddr(devaddr, domp, busp, slotp);
-}
-
 static PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr)
 {
     int dom, bus;
@@ -820,7 +803,7 @@ void pci_info(Monitor *mon)
     pci_for_each_device(0, pci_info_device);
 }
-static PCIDevice *pci_create(const char *name, const char *devaddr)
+PCIDevice *pci_create(const char *name, const char *devaddr)
 {
     PCIBus *bus;
     int devfn;
@@ -193,7 +193,6 @@ PCIBus *pci_find_bus(int bus_num);
 PCIDevice *pci_find_device(int bus_num, int slot, int function);
 int pci_read_devaddr(const char *addr, int *domp, int *busp, unsigned *slotp);
-int pci_assign_devaddr(const char *addr, int *domp, int *busp, unsigned *slotp);
 void pci_info(Monitor *mon);
 PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint16_t vid, uint16_t did,
@@ -220,6 +219,7 @@ pci_config_set_class(uint8_t *pci_config, uint16_t val)
 typedef void (*pci_qdev_initfn)(PCIDevice *dev);
 void pci_qdev_register(const char *name, int size, pci_qdev_initfn init);
+PCIDevice *pci_create(const char *name, const char *devaddr);
 PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name);
 /* lsi53c895a.c */