[Qemu-devel] [PATCH 2/8] pci romfiles: add property, add default to PCIDeviceInfo

[Gerd Hoffmann <kraxel@redhat.com>]

This patch adds a romfile property to the pci bus.  It allows to specify
a romfile to load into the rom bar of the pci device.  The default value
comes from a new field in PCIDeviceInfo.  The property allows to change
the file and also to disable the rom loading using an empty string.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/cirrus_vga.c |    4 +---
 hw/e1000.c      |    9 +--------
 hw/pci.c        |   24 +++++++++++++++++++++---
 hw/pci.h        |    6 ++++--
 hw/rtl8139.c    |    9 +--------
 hw/virtio-pci.c |    9 +--------
 6 files changed, 29 insertions(+), 32 deletions(-)

diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index b08d2ae..6fe433d 100644
--- a/hw/cirrus_vga.c
+++ b/hw/cirrus_vga.c
@@ -3209,9 +3209,6 @@ static int pci_cirrus_vga_initfn(PCIDevice *dev)
          pci_register_bar((PCIDevice *)d, 1, CIRRUS_PNPMMIO_SIZE,
                           PCI_BASE_ADDRESS_SPACE_MEMORY, cirrus_pci_mmio_map);
      }
-
-     /* ROM BIOS */
-     pci_add_option_rom((PCIDevice *)d, VGABIOS_CIRRUS_FILENAME);
      return 0;
 }
 
@@ -3226,6 +3223,7 @@ static PCIDeviceInfo cirrus_vga_info = {
     .qdev.size    = sizeof(PCICirrusVGAState),
     .qdev.vmsd    = &vmstate_pci_cirrus_vga,
     .init         = pci_cirrus_vga_initfn,
+    .romfile      = VGABIOS_CIRRUS_FILENAME,
     .config_write = pci_cirrus_write_config,
 };
 
diff --git a/hw/e1000.c b/hw/e1000.c
index f795601..33c4bc6 100644
--- a/hw/e1000.c
+++ b/hw/e1000.c
@@ -1121,14 +1121,6 @@ static int pci_e1000_init(PCIDevice *pci_dev)
                           d->dev.qdev.info->name, d->dev.qdev.id, d);
 
     qemu_format_nic_info_str(&d->nic->nc, macaddr);
-
-    if (!pci_dev->qdev.hotplugged) {
-        static int loaded = 0;
-        if (!loaded) {
-            pci_add_option_rom(&d->dev, "pxe-e1000.bin");
-            loaded = 1;
-        }
-    }
     return 0;
 }
 
@@ -1146,6 +1138,7 @@ static PCIDeviceInfo e1000_info = {
     .qdev.vmsd  = &vmstate_e1000,
     .init       = pci_e1000_init,
     .exit       = pci_e1000_uninit,
+    .romfile    = "pxe-e1000.bin",
     .qdev.props = (Property[]) {
         DEFINE_NIC_PROPERTIES(E1000State, conf),
         DEFINE_PROP_END_OF_LIST(),
diff --git a/hw/pci.c b/hw/pci.c
index dbdfdbf..d54f05e 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -63,12 +63,14 @@ static struct BusInfo pci_bus_info = {
     .print_dev  = pcibus_dev_print,
     .props      = (Property[]) {
         DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1),
+        DEFINE_PROP_STRING("romfile", PCIDevice, romfile),
         DEFINE_PROP_END_OF_LIST()
     }
 };
 
 static void pci_update_mappings(PCIDevice *d);
 static void pci_set_irq(void *opaque, int irq_num, int level);
+static int pci_add_option_rom(PCIDevice *pdev);
 
 target_phys_addr_t pci_mem_base;
 static uint16_t pci_default_sub_vendor_id = PCI_SUBVENDOR_ID_REDHAT_QUMRANET;
@@ -1387,6 +1389,12 @@ static int pci_qdev_init(DeviceState *qdev, DeviceInfo *base)
     rc = info->init(pci_dev);
     if (rc != 0)
         return rc;
+
+    /* rom loading */
+    if (pci_dev->romfile == NULL && info->romfile != NULL)
+        pci_dev->romfile = qemu_strdup(info->romfile);
+    pci_add_option_rom(pci_dev);
+
     if (qdev->hotplugged)
         bus->hotplug(pci_dev, 1);
     return 0;
@@ -1470,18 +1478,28 @@ static void pci_map_option_rom(PCIDevice *pdev, int region_num, pcibus_t addr, p
 }
 
 /* Add an option rom for the device */
-int pci_add_option_rom(PCIDevice *pdev, const char *name)
+static int pci_add_option_rom(PCIDevice *pdev)
 {
     int size;
     char *path;
     void *ptr;
 
-    path = qemu_find_file(QEMU_FILE_TYPE_BIOS, name);
+    if (!pdev->romfile)
+        return 0;
+    if (strlen(pdev->romfile) == 0)
+        return 0;
+
+    path = qemu_find_file(QEMU_FILE_TYPE_BIOS, pdev->romfile);
     if (path == NULL) {
-        path = qemu_strdup(name);
+        path = qemu_strdup(pdev->romfile);
     }
 
     size = get_image_size(path);
+    if (size < 0) {
+        qemu_error("%s: failed to find romfile \"%s\"\n", __FUNCTION__,
+                   pdev->romfile);
+        return -1;
+    }
     if (size & (size - 1)) {
         size = 1 << qemu_fls(size);
     }
diff --git a/hw/pci.h b/hw/pci.h
index 89b3f55..39da7df 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -245,6 +245,7 @@ struct PCIDevice {
     int32_t version_id;
 
     /* Location of option rom */
+    char *romfile;
     ram_addr_t rom_offset;
 };
 
@@ -257,8 +258,6 @@ void pci_register_bar(PCIDevice *pci_dev, int region_num,
                             pcibus_t size, int type,
                             PCIMapIORegionFunc *map_func);
 
-int pci_add_option_rom(PCIDevice *pdev, const char *name);
-
 int pci_add_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
 
 void pci_del_capability(PCIDevice *pci_dev, uint8_t cap_id, uint8_t cap_size);
@@ -386,6 +385,9 @@ typedef struct {
 
     /* pcie stuff */
     int is_express;   /* is this device pci express? */
+
+    /* rom bar */
+    const char *romfile;
 } PCIDeviceInfo;
 
 void pci_qdev_register(PCIDeviceInfo *info);
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 2cee97b..fcdcd1d 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -3353,14 +3353,6 @@ static int pci_rtl8139_init(PCIDevice *dev)
     qemu_mod_timer(s->timer,
         rtl8139_get_next_tctr_time(s,qemu_get_clock(vm_clock)));
 #endif /* RTL8139_ONBOARD_TIMER */
-
-    if (!dev->qdev.hotplugged) {
-        static int loaded = 0;
-        if (!loaded) {
-            pci_add_option_rom(&s->dev, "pxe-rtl8139.bin");
-            loaded = 1;
-        }
-    }
     return 0;
 }
 
@@ -3371,6 +3363,7 @@ static PCIDeviceInfo rtl8139_info = {
     .qdev.vmsd  = &vmstate_rtl8139,
     .init       = pci_rtl8139_init,
     .exit       = pci_rtl8139_uninit,
+    .romfile    = "pxe-rtl8139.bin",
     .qdev.props = (Property[]) {
         DEFINE_NIC_PROPERTIES(RTL8139State, conf),
         DEFINE_PROP_END_OF_LIST(),
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index 85f14a2..62b46bd 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -518,14 +518,6 @@ static int virtio_net_init_pci(PCIDevice *pci_dev)
 
     /* make the actual value visible */
     proxy->nvectors = vdev->nvectors;
-
-    if (!pci_dev->qdev.hotplugged) {
-        static int loaded = 0;
-        if (!loaded) {
-            pci_add_option_rom(pci_dev, "pxe-virtio.bin");
-            loaded = 1;
-        }
-    }
     return 0;
 }
 
@@ -569,6 +561,7 @@ static PCIDeviceInfo virtio_info[] = {
         .qdev.size  = sizeof(VirtIOPCIProxy),
         .init       = virtio_net_init_pci,
         .exit       = virtio_net_exit_pci,
+        .romfile    = "pxe-virtio.bin",
         .qdev.props = (Property[]) {
             DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
             DEFINE_NIC_PROPERTIES(VirtIOPCIProxy, nic),
-- 
1.6.5.2