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Diffstat (limited to 'hw/pci/pci.c')
-rw-r--r--hw/pci/pci.c127
1 files changed, 73 insertions, 54 deletions
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 31b222d8c0..cc5d946b8f 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -115,7 +115,7 @@ static const TypeInfo pcie_bus_info = {
static PCIBus *pci_find_bus_nr(PCIBus *bus, int bus_num);
static void pci_update_mappings(PCIDevice *d);
static void pci_irq_handler(void *opaque, int irq_num, int level);
-static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom);
+static void pci_add_option_rom(PCIDevice *pdev, bool is_default_rom, Error **);
static void pci_del_option_rom(PCIDevice *pdev);
static uint16_t pci_default_sub_vendor_id = PCI_SUBVENDOR_ID_REDHAT_QUMRANET;
@@ -539,8 +539,8 @@ static void pci_set_default_subsystem_id(PCIDevice *pci_dev)
* Parse [[<domain>:]<bus>:]<slot>, return -1 on error if funcp == NULL
* [[<domain>:]<bus>:]<slot>.<func>, return -1 on error
*/
-int pci_parse_devaddr(const char *addr, int *domp, int *busp,
- unsigned int *slotp, unsigned int *funcp)
+static int pci_parse_devaddr(const char *addr, int *domp, int *busp,
+ unsigned int *slotp, unsigned int *funcp)
{
const char *p;
char *e;
@@ -598,7 +598,8 @@ int pci_parse_devaddr(const char *addr, int *domp, int *busp,
return 0;
}
-PCIBus *pci_get_bus_devfn(int *devfnp, PCIBus *root, const char *devaddr)
+static PCIBus *pci_get_bus_devfn(int *devfnp, PCIBus *root,
+ const char *devaddr)
{
int dom, bus;
unsigned slot;
@@ -726,7 +727,7 @@ static void pci_init_mask_bridge(PCIDevice *d)
PCI_PREF_RANGE_TYPE_MASK);
}
-static int pci_init_multifunction(PCIBus *bus, PCIDevice *dev)
+static void pci_init_multifunction(PCIBus *bus, PCIDevice *dev, Error **errp)
{
uint8_t slot = PCI_SLOT(dev->devfn);
uint8_t func;
@@ -752,26 +753,25 @@ static int pci_init_multifunction(PCIBus *bus, PCIDevice *dev)
PCIDevice *f0 = bus->devices[PCI_DEVFN(slot, 0)];
if (f0 && !(f0->cap_present & QEMU_PCI_CAP_MULTIFUNCTION)) {
/* function 0 should set multifunction bit */
- error_report("PCI: single function device can't be populated "
- "in function %x.%x", slot, PCI_FUNC(dev->devfn));
- return -1;
+ error_setg(errp, "PCI: single function device can't be populated "
+ "in function %x.%x", slot, PCI_FUNC(dev->devfn));
+ return;
}
- return 0;
+ return;
}
if (dev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
- return 0;
+ return;
}
/* function 0 indicates single function, so function > 0 must be NULL */
for (func = 1; func < PCI_FUNC_MAX; ++func) {
if (bus->devices[PCI_DEVFN(slot, func)]) {
- error_report("PCI: %x.0 indicates single function, "
- "but %x.%x is already populated.",
- slot, slot, func);
- return -1;
+ error_setg(errp, "PCI: %x.0 indicates single function, "
+ "but %x.%x is already populated.",
+ slot, slot, func);
+ return;
}
}
- return 0;
}
static void pci_config_alloc(PCIDevice *pci_dev)
@@ -804,11 +804,13 @@ static void do_pci_unregister_device(PCIDevice *pci_dev)
/* -1 for devfn means auto assign */
static PCIDevice *do_pci_register_device(PCIDevice *pci_dev, PCIBus *bus,
- const char *name, int devfn)
+ const char *name, int devfn,
+ Error **errp)
{
PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pci_dev);
PCIConfigReadFunc *config_read = pc->config_read;
PCIConfigWriteFunc *config_write = pc->config_write;
+ Error *local_err = NULL;
AddressSpace *dma_as;
if (devfn < 0) {
@@ -817,12 +819,15 @@ static PCIDevice *do_pci_register_device(PCIDevice *pci_dev, PCIBus *bus,
if (!bus->devices[devfn])
goto found;
}
- error_report("PCI: no slot/function available for %s, all in use", name);
+ error_setg(errp, "PCI: no slot/function available for %s, all in use",
+ name);
return NULL;
found: ;
} else if (bus->devices[devfn]) {
- error_report("PCI: slot %d function %d not available for %s, in use by %s",
- PCI_SLOT(devfn), PCI_FUNC(devfn), name, bus->devices[devfn]->name);
+ error_setg(errp, "PCI: slot %d function %d not available for %s,"
+ " in use by %s",
+ PCI_SLOT(devfn), PCI_FUNC(devfn), name,
+ bus->devices[devfn]->name);
return NULL;
}
@@ -866,7 +871,9 @@ static PCIDevice *do_pci_register_device(PCIDevice *pci_dev, PCIBus *bus,
if (pc->is_bridge) {
pci_init_mask_bridge(pci_dev);
}
- if (pci_init_multifunction(bus, pci_dev)) {
+ pci_init_multifunction(bus, pci_dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
do_pci_unregister_device(pci_dev);
return NULL;
}
@@ -897,7 +904,7 @@ static void pci_unregister_io_regions(PCIDevice *pci_dev)
pci_unregister_vga(pci_dev);
}
-static int pci_unregister_device(DeviceState *dev)
+static void pci_qdev_unrealize(DeviceState *dev, Error **errp)
{
PCIDevice *pci_dev = PCI_DEVICE(dev);
PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pci_dev);
@@ -910,7 +917,6 @@ static int pci_unregister_device(DeviceState *dev)
}
do_pci_unregister_device(pci_dev);
- return 0;
}
void pci_register_bar(PCIDevice *pci_dev, int region_num,
@@ -1605,10 +1611,9 @@ static const char * const pci_nic_names[] = {
};
/* Initialize a PCI NIC. */
-/* FIXME callers should check for failure, but don't */
-PCIDevice *pci_nic_init(NICInfo *nd, PCIBus *rootbus,
- const char *default_model,
- const char *default_devaddr)
+static PCIDevice *pci_nic_init(NICInfo *nd, PCIBus *rootbus,
+ const char *default_model,
+ const char *default_devaddr)
{
const char *devaddr = nd->devaddr ? nd->devaddr : default_devaddr;
PCIBus *bus;
@@ -1751,12 +1756,12 @@ PCIDevice *pci_find_device(PCIBus *bus, int bus_num, uint8_t devfn)
return bus->devices[devfn];
}
-static int pci_qdev_init(DeviceState *qdev)
+static void pci_qdev_realize(DeviceState *qdev, Error **errp)
{
PCIDevice *pci_dev = (PCIDevice *)qdev;
PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(pci_dev);
+ Error *local_err = NULL;
PCIBus *bus;
- int rc;
bool is_default_rom;
/* initialize cap_present for pci_is_express() and pci_config_size() */
@@ -1767,15 +1772,16 @@ static int pci_qdev_init(DeviceState *qdev)
bus = PCI_BUS(qdev_get_parent_bus(qdev));
pci_dev = do_pci_register_device(pci_dev, bus,
object_get_typename(OBJECT(qdev)),
- pci_dev->devfn);
+ pci_dev->devfn, errp);
if (pci_dev == NULL)
- return -1;
+ return;
- if (pc->init) {
- rc = pc->init(pci_dev);
- if (rc != 0) {
+ if (pc->realize) {
+ pc->realize(pci_dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
do_pci_unregister_device(pci_dev);
- return rc;
+ return;
}
}
@@ -1786,13 +1792,24 @@ static int pci_qdev_init(DeviceState *qdev)
is_default_rom = true;
}
- rc = pci_add_option_rom(pci_dev, is_default_rom);
- if (rc != 0) {
- pci_unregister_device(DEVICE(pci_dev));
- return rc;
+ pci_add_option_rom(pci_dev, is_default_rom, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ pci_qdev_unrealize(DEVICE(pci_dev), NULL);
+ return;
}
+}
- return 0;
+static void pci_default_realize(PCIDevice *dev, Error **errp)
+{
+ PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
+
+ if (pc->init) {
+ if (pc->init(dev) < 0) {
+ error_setg(errp, "Device initialization failed");
+ return;
+ }
+ }
}
PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
@@ -1932,7 +1949,8 @@ static void pci_patch_ids(PCIDevice *pdev, uint8_t *ptr, int size)
}
/* Add an option rom for the device */
-static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom)
+static void pci_add_option_rom(PCIDevice *pdev, bool is_default_rom,
+ Error **errp)
{
int size;
char *path;
@@ -1941,9 +1959,9 @@ static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom)
const VMStateDescription *vmsd;
if (!pdev->romfile)
- return 0;
+ return;
if (strlen(pdev->romfile) == 0)
- return 0;
+ return;
if (!pdev->rom_bar) {
/*
@@ -1957,7 +1975,9 @@ static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom)
* if the rom bar is disabled.
*/
if (DEVICE(pdev)->hotplugged) {
- return -1;
+ error_setg(errp, "Hot-plugged device without ROM bar"
+ " can't have an option ROM");
+ return;
}
if (class == 0x0300) {
@@ -1965,7 +1985,7 @@ static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom)
} else {
rom_add_option(pdev->romfile, -1);
}
- return 0;
+ return;
}
path = qemu_find_file(QEMU_FILE_TYPE_BIOS, pdev->romfile);
@@ -1975,15 +1995,13 @@ static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom)
size = get_image_size(path);
if (size < 0) {
- error_report("%s: failed to find romfile \"%s\"",
- __func__, pdev->romfile);
+ error_setg(errp, "failed to find romfile \"%s\"", pdev->romfile);
g_free(path);
- return -1;
+ return;
} else if (size == 0) {
- error_report("%s: ignoring empty romfile \"%s\"",
- __func__, pdev->romfile);
+ error_setg(errp, "romfile \"%s\" is empty", pdev->romfile);
g_free(path);
- return -1;
+ return;
}
if (size & (size - 1)) {
size = 1 << qemu_fls(size);
@@ -2009,8 +2027,6 @@ static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom)
}
pci_register_bar(pdev, PCI_ROM_SLOT, 0, &pdev->rom);
-
- return 0;
}
static void pci_del_option_rom(PCIDevice *pdev)
@@ -2291,10 +2307,13 @@ MemoryRegion *pci_address_space_io(PCIDevice *dev)
static void pci_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *k = DEVICE_CLASS(klass);
- k->init = pci_qdev_init;
- k->exit = pci_unregister_device;
+ PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
+
+ k->realize = pci_qdev_realize;
+ k->unrealize = pci_qdev_unrealize;
k->bus_type = TYPE_PCI_BUS;
k->props = pci_props;
+ pc->realize = pci_default_realize;
}
AddressSpace *pci_device_iommu_address_space(PCIDevice *dev)
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-25 18:44:36 +0000