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-rw-r--r--hw/pci/Makefile.objs2
-rw-r--r--hw/pci/pci-hotplug-old.c342
-rw-r--r--hw/pci/pci.c127
3 files changed, 73 insertions, 398 deletions
diff --git a/hw/pci/Makefile.objs b/hw/pci/Makefile.objs
index 80f8aa69ac..9f905e6344 100644
--- a/hw/pci/Makefile.objs
+++ b/hw/pci/Makefile.objs
@@ -7,5 +7,3 @@ common-obj-$(CONFIG_PCI) += pcie.o pcie_aer.o pcie_port.o
common-obj-$(call lnot,$(CONFIG_PCI)) += pci-stub.o
common-obj-$(CONFIG_ALL) += pci-stub.o
-
-common-obj-$(CONFIG_PCI_HOTPLUG_OLD) += pci-hotplug-old.o
diff --git a/hw/pci/pci-hotplug-old.c b/hw/pci/pci-hotplug-old.c
deleted file mode 100644
index 501a918b89..0000000000
--- a/hw/pci/pci-hotplug-old.c
+++ /dev/null
@@ -1,342 +0,0 @@
-/*
- * Deprecated PCI hotplug interface support
- * This covers the old pci_add / pci_del command, whereas the more general
- * device_add / device_del commands are now preferred.
- *
- * Copyright (c) 2004 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "hw/hw.h"
-#include "hw/boards.h"
-#include "hw/pci/pci.h"
-#include "net/net.h"
-#include "hw/i386/pc.h"
-#include "monitor/monitor.h"
-#include "hw/scsi/scsi.h"
-#include "hw/virtio/virtio-blk.h"
-#include "qemu/config-file.h"
-#include "sysemu/block-backend.h"
-#include "qapi/error.h"
-
-static int pci_read_devaddr(Monitor *mon, const char *addr,
- int *busp, unsigned *slotp)
-{
- int dom;
-
- /* strip legacy tag */
- if (!strncmp(addr, "pci_addr=", 9)) {
- addr += 9;
- }
- if (pci_parse_devaddr(addr, &dom, busp, slotp, NULL)) {
- monitor_printf(mon, "Invalid pci address\n");
- return -1;
- }
- if (dom != 0) {
- monitor_printf(mon, "Multiple PCI domains not supported, use device_add\n");
- return -1;
- }
- return 0;
-}
-
-static PCIDevice *qemu_pci_hot_add_nic(Monitor *mon,
- const char *devaddr,
- const char *opts_str)
-{
- Error *local_err = NULL;
- QemuOpts *opts;
- PCIBus *root = pci_find_primary_bus();
- PCIBus *bus;
- int ret, devfn;
-
- if (!root) {
- monitor_printf(mon, "no primary PCI bus (if there are multiple"
- " PCI roots, you must use device_add instead)");
- return NULL;
- }
-
- bus = pci_get_bus_devfn(&devfn, root, devaddr);
- if (!bus) {
- monitor_printf(mon, "Invalid PCI device address %s\n", devaddr);
- return NULL;
- }
- if (!qbus_is_hotpluggable(BUS(bus))) {
- monitor_printf(mon, "PCI bus doesn't support hotplug\n");
- return NULL;
- }
-
- opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0);
- if (!opts) {
- return NULL;
- }
-
- qemu_opt_set(opts, "type", "nic", &error_abort);
-
- ret = net_client_init(opts, 0, &local_err);
- if (local_err) {
- qerror_report_err(local_err);
- error_free(local_err);
- return NULL;
- }
- if (nd_table[ret].devaddr) {
- monitor_printf(mon, "Parameter addr not supported\n");
- return NULL;
- }
- return pci_nic_init(&nd_table[ret], root, "rtl8139", devaddr);
-}
-
-static int scsi_hot_add(Monitor *mon, DeviceState *adapter,
- DriveInfo *dinfo, int printinfo)
-{
- SCSIBus *scsibus;
- SCSIDevice *scsidev;
- Error *local_err = NULL;
-
- scsibus = (SCSIBus *)
- object_dynamic_cast(OBJECT(QLIST_FIRST(&adapter->child_bus)),
- TYPE_SCSI_BUS);
- if (!scsibus) {
- error_report("Device is not a SCSI adapter");
- return -1;
- }
-
- /*
- * drive_init() tries to find a default for dinfo->unit. Doesn't
- * work at all for hotplug though as we assign the device to a
- * specific bus instead of the first bus with spare scsi ids.
- *
- * Ditch the calculated value and reload from option string (if
- * specified).
- */
- dinfo->unit = qemu_opt_get_number(dinfo->opts, "unit", -1);
- dinfo->bus = scsibus->busnr;
- scsidev = scsi_bus_legacy_add_drive(scsibus,
- blk_by_legacy_dinfo(dinfo),
- dinfo->unit, false, -1, NULL,
- &local_err);
- if (!scsidev) {
- error_report_err(local_err);
- return -1;
- }
- dinfo->unit = scsidev->id;
-
- if (printinfo)
- monitor_printf(mon, "OK bus %d, unit %d\n",
- scsibus->busnr, scsidev->id);
- return 0;
-}
-
-int pci_drive_hot_add(Monitor *mon, const QDict *qdict, DriveInfo *dinfo)
-{
- int pci_bus;
- unsigned slot;
- PCIBus *root = pci_find_primary_bus();
- PCIDevice *dev;
- const char *pci_addr = qdict_get_str(qdict, "pci_addr");
-
- switch (dinfo->type) {
- case IF_SCSI:
- if (!root) {
- monitor_printf(mon, "no primary PCI bus (if there are multiple"
- " PCI roots, you must use device_add instead)");
- goto err;
- }
- if (pci_read_devaddr(mon, pci_addr, &pci_bus, &slot)) {
- goto err;
- }
- dev = pci_find_device(root, pci_bus, PCI_DEVFN(slot, 0));
- if (!dev) {
- monitor_printf(mon, "no pci device with address %s\n", pci_addr);
- goto err;
- }
- if (scsi_hot_add(mon, &dev->qdev, dinfo, 1) != 0) {
- goto err;
- }
- break;
- default:
- monitor_printf(mon, "Can't hot-add drive to type %d\n", dinfo->type);
- goto err;
- }
-
- return 0;
-err:
- return -1;
-}
-
-static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon,
- const char *devaddr,
- const char *opts)
-{
- PCIDevice *dev;
- DriveInfo *dinfo = NULL;
- int type = -1;
- char buf[128];
- PCIBus *root = pci_find_primary_bus();
- PCIBus *bus;
- int devfn;
-
- if (get_param_value(buf, sizeof(buf), "if", opts)) {
- if (!strcmp(buf, "scsi"))
- type = IF_SCSI;
- else if (!strcmp(buf, "virtio")) {
- type = IF_VIRTIO;
- } else {
- monitor_printf(mon, "type %s not a hotpluggable PCI device.\n", buf);
- return NULL;
- }
- } else {
- monitor_printf(mon, "no if= specified\n");
- return NULL;
- }
-
- if (get_param_value(buf, sizeof(buf), "file", opts)) {
- dinfo = add_init_drive(opts);
- if (!dinfo)
- return NULL;
- if (dinfo->devaddr) {
- monitor_printf(mon, "Parameter addr not supported\n");
- return NULL;
- }
- } else {
- dinfo = NULL;
- }
-
- if (!root) {
- monitor_printf(mon, "no primary PCI bus (if there are multiple"
- " PCI roots, you must use device_add instead)");
- return NULL;
- }
- bus = pci_get_bus_devfn(&devfn, root, devaddr);
- if (!bus) {
- monitor_printf(mon, "Invalid PCI device address %s\n", devaddr);
- return NULL;
- }
- if (!qbus_is_hotpluggable(BUS(bus))) {
- monitor_printf(mon, "PCI bus doesn't support hotplug\n");
- return NULL;
- }
-
- switch (type) {
- case IF_SCSI:
- dev = pci_create(bus, devfn, "lsi53c895a");
- if (qdev_init(&dev->qdev) < 0)
- dev = NULL;
- if (dev && dinfo) {
- if (scsi_hot_add(mon, &dev->qdev, dinfo, 0) != 0) {
- qdev_unplug(&dev->qdev, NULL);
- dev = NULL;
- }
- }
- break;
- case IF_VIRTIO:
- if (!dinfo) {
- monitor_printf(mon, "virtio requires a backing file/device.\n");
- return NULL;
- }
- dev = pci_create(bus, devfn, "virtio-blk-pci");
- if (qdev_prop_set_drive(&dev->qdev, "drive",
- blk_by_legacy_dinfo(dinfo)) < 0) {
- object_unparent(OBJECT(dev));
- dev = NULL;
- break;
- }
- if (qdev_init(&dev->qdev) < 0)
- dev = NULL;
- break;
- default:
- dev = NULL;
- }
- return dev;
-}
-
-void hmp_pci_add(Monitor *mon, const QDict *qdict)
-{
- PCIDevice *dev = NULL;
- const char *pci_addr = qdict_get_str(qdict, "pci_addr");
- const char *type = qdict_get_str(qdict, "type");
- const char *opts = qdict_get_try_str(qdict, "opts");
-
- /* strip legacy tag */
- if (!strncmp(pci_addr, "pci_addr=", 9)) {
- pci_addr += 9;
- }
-
- if (!opts) {
- opts = "";
- }
-
- if (!strcmp(pci_addr, "auto"))
- pci_addr = NULL;
-
- if (strcmp(type, "nic") == 0) {
- dev = qemu_pci_hot_add_nic(mon, pci_addr, opts);
- } else if (strcmp(type, "storage") == 0) {
- dev = qemu_pci_hot_add_storage(mon, pci_addr, opts);
- } else {
- monitor_printf(mon, "invalid type: %s\n", type);
- }
-
- if (dev) {
- monitor_printf(mon, "OK root bus %s, bus %d, slot %d, function %d\n",
- pci_root_bus_path(dev),
- pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
- PCI_FUNC(dev->devfn));
- } else
- monitor_printf(mon, "failed to add %s\n", opts);
-}
-
-static int pci_device_hot_remove(Monitor *mon, const char *pci_addr)
-{
- PCIBus *root = pci_find_primary_bus();
- PCIDevice *d;
- int bus;
- unsigned slot;
- Error *local_err = NULL;
-
- if (!root) {
- monitor_printf(mon, "no primary PCI bus (if there are multiple"
- " PCI roots, you must use device_del instead)");
- return -1;
- }
-
- if (pci_read_devaddr(mon, pci_addr, &bus, &slot)) {
- return -1;
- }
-
- d = pci_find_device(root, bus, PCI_DEVFN(slot, 0));
- if (!d) {
- monitor_printf(mon, "slot %d empty\n", slot);
- return -1;
- }
-
- qdev_unplug(&d->qdev, &local_err);
- if (local_err) {
- monitor_printf(mon, "%s\n", error_get_pretty(local_err));
- error_free(local_err);
- return -1;
- }
-
- return 0;
-}
-
-void hmp_pci_del(Monitor *mon, const QDict *qdict)
-{
- pci_device_hot_remove(mon, qdict_get_str(qdict, "pci_addr"));
-}
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 2025-02-18 08:18:00 +0000