target_ulong args, uint32_t nret,
target_ulong rets)
{
+ sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
uint32_t config_addr = rtas_ld(args, 0);
uint64_t buid = rtas_ldq(args, 1);
unsigned int func = rtas_ld(args, 3);
spapr_pci_msi *msi;
int *config_addr_key;
Error *err = NULL;
+ int i;
+
+ /* Fins sPAPRPHBState */
+ phb = spapr_pci_find_phb(spapr, buid);
+ if (phb) {
+ pdev = spapr_pci_find_dev(spapr, buid, config_addr);
+ }
+ if (!phb || !pdev) {
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+ return;
+ }
switch (func) {
- case RTAS_CHANGE_MSI_FN:
case RTAS_CHANGE_FN:
- ret_intr_type = RTAS_TYPE_MSI;
+ if (msi_present(pdev)) {
+ ret_intr_type = RTAS_TYPE_MSI;
+ } else if (msix_present(pdev)) {
+ ret_intr_type = RTAS_TYPE_MSIX;
+ } else {
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+ return;
+ }
+ break;
+ case RTAS_CHANGE_MSI_FN:
+ if (msi_present(pdev)) {
+ ret_intr_type = RTAS_TYPE_MSI;
+ } else {
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+ return;
+ }
break;
case RTAS_CHANGE_MSIX_FN:
- ret_intr_type = RTAS_TYPE_MSIX;
+ if (msix_present(pdev)) {
+ ret_intr_type = RTAS_TYPE_MSIX;
+ } else {
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+ return;
+ }
break;
default:
error_report("rtas_ibm_change_msi(%u) is not implemented", func);
return;
}
- /* Fins sPAPRPHBState */
- phb = spapr_pci_find_phb(spapr, buid);
- if (phb) {
- pdev = spapr_pci_find_dev(spapr, buid, config_addr);
- }
- if (!phb || !pdev) {
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- return;
- }
-
msi = (spapr_pci_msi *) g_hash_table_lookup(phb->msi, &config_addr);
/* Releasing MSIs */
return;
}
+ if (!smc->legacy_irq_allocation) {
+ spapr_irq_msi_free(spapr, msi->first_irq, msi->num);
+ }
spapr_irq_free(spapr, msi->first_irq, msi->num);
if (msi_present(pdev)) {
spapr_msi_setmsg(pdev, 0, false, 0, 0);
}
/* Allocate MSIs */
- irq = spapr_irq_alloc_block(spapr, req_num, false,
- ret_intr_type == RTAS_TYPE_MSI, &err);
+ if (smc->legacy_irq_allocation) {
+ irq = spapr_irq_find(spapr, req_num, ret_intr_type == RTAS_TYPE_MSI,
+ &err);
+ } else {
+ irq = spapr_irq_msi_alloc(spapr, req_num,
+ ret_intr_type == RTAS_TYPE_MSI, &err);
+ }
if (err) {
error_reportf_err(err, "Can't allocate MSIs for device %x: ",
config_addr);
return;
}
+ for (i = 0; i < req_num; i++) {
+ spapr_irq_claim(spapr, irq + i, false, &err);
+ if (err) {
+ if (i) {
+ spapr_irq_free(spapr, irq, i);
+ }
+ if (!smc->legacy_irq_allocation) {
+ spapr_irq_msi_free(spapr, irq, req_num);
+ }
+ error_reportf_err(err, "Can't allocate MSIs for device %x: ",
+ config_addr);
+ rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
+ return;
+ }
+ }
+
/* Release previous MSIs */
if (msi) {
+ if (!smc->legacy_irq_allocation) {
+ spapr_irq_msi_free(spapr, msi->first_irq, msi->num);
+ }
spapr_irq_free(spapr, msi->first_irq, msi->num);
g_hash_table_remove(phb->msi, &config_addr);
}
}
assigned = &rp->assigned[assigned_idx++];
- assigned->phys_hi = cpu_to_be32(reg->phys_hi | b_n(1));
+ assigned->phys_hi = cpu_to_be32(be32_to_cpu(reg->phys_hi) | b_n(1));
assigned->phys_mid = cpu_to_be32(d->io_regions[i].addr >> 32);
assigned->phys_lo = cpu_to_be32(d->io_regions[i].addr);
assigned->size_hi = reg->size_hi;
_FDT(fdt_setprop_cell(fdt, offset, "#size-cells",
RESOURCE_CELLS_SIZE));
- max_msi = msi_nr_vectors_allocated(dev);
- if (max_msi) {
- _FDT(fdt_setprop_cell(fdt, offset, "ibm,req#msi", max_msi));
+ if (msi_present(dev)) {
+ max_msi = msi_nr_vectors_allocated(dev);
+ if (max_msi) {
+ _FDT(fdt_setprop_cell(fdt, offset, "ibm,req#msi", max_msi));
+ }
}
- max_msix = dev->msix_entries_nr;
- if (max_msix) {
- _FDT(fdt_setprop_cell(fdt, offset, "ibm,req#msi-x", max_msix));
+ if (msix_present(dev)) {
+ max_msix = dev->msix_entries_nr;
+ if (max_msix) {
+ _FDT(fdt_setprop_cell(fdt, offset, "ibm,req#msi-x", max_msix));
+ }
}
populate_resource_props(dev, &rp);
/* Callback to be called during DRC release. */
void spapr_phb_remove_pci_device_cb(DeviceState *dev)
{
- /* some version guests do not wait for completion of a device
- * cleanup (generally done asynchronously by the kernel) before
- * signaling to QEMU that the device is safe, but instead sleep
- * for some 'safe' period of time. unfortunately on a busy host
- * this sleep isn't guaranteed to be long enough, resulting in
- * bad things like IRQ lines being left asserted during final
- * device removal. to deal with this we call reset just prior
- * to finalizing the device, which will put the device back into
- * an 'idle' state, as the device cleanup code expects.
- */
- pci_device_reset(PCI_DEVICE(dev));
+ HotplugHandler *hotplug_ctrl = qdev_get_hotplug_handler(dev);
+
+ hotplug_handler_unplug(hotplug_ctrl, dev, &error_abort);
object_unparent(OBJECT(dev));
}
return spapr_drc_index(drc);
}
+int spapr_pci_dt_populate(sPAPRDRConnector *drc, sPAPRMachineState *spapr,
+ void *fdt, int *fdt_start_offset, Error **errp)
+{
+ HotplugHandler *plug_handler = qdev_get_hotplug_handler(drc->dev);
+ sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(plug_handler);
+ PCIDevice *pdev = PCI_DEVICE(drc->dev);
+
+ *fdt_start_offset = spapr_create_pci_child_dt(sphb, pdev, fdt, 0);
+ return 0;
+}
+
static void spapr_pci_plug(HotplugHandler *plug_handler,
DeviceState *plugged_dev, Error **errp)
{
Error *local_err = NULL;
PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(pdev)));
uint32_t slotnr = PCI_SLOT(pdev->devfn);
- void *fdt = NULL;
- int fdt_start_offset, fdt_size;
/* if DR is disabled we don't need to do anything in the case of
* hotplug or coldplug callbacks
goto out;
}
- fdt = create_device_tree(&fdt_size);
- fdt_start_offset = spapr_create_pci_child_dt(phb, pdev, fdt, 0);
-
- spapr_drc_attach(drc, DEVICE(pdev), fdt, fdt_start_offset, &local_err);
+ spapr_drc_attach(drc, DEVICE(pdev), &local_err);
if (local_err) {
goto out;
}
out:
if (local_err) {
error_propagate(errp, local_err);
- g_free(fdt);
}
}
+static void spapr_pci_unplug(HotplugHandler *plug_handler,
+ DeviceState *plugged_dev, Error **errp)
+{
+ /* some version guests do not wait for completion of a device
+ * cleanup (generally done asynchronously by the kernel) before
+ * signaling to QEMU that the device is safe, but instead sleep
+ * for some 'safe' period of time. unfortunately on a busy host
+ * this sleep isn't guaranteed to be long enough, resulting in
+ * bad things like IRQ lines being left asserted during final
+ * device removal. to deal with this we call reset just prior
+ * to finalizing the device, which will put the device back into
+ * an 'idle' state, as the device cleanup code expects.
+ */
+ pci_device_reset(PCI_DEVICE(plugged_dev));
+ object_property_set_bool(OBJECT(plugged_dev), false, "realized", NULL);
+}
+
static void spapr_pci_unplug_request(HotplugHandler *plug_handler,
DeviceState *plugged_dev, Error **errp)
{
}
}
+static void spapr_phb_finalizefn(Object *obj)
+{
+ sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(obj);
+
+ g_free(sphb->dtbusname);
+ sphb->dtbusname = NULL;
+}
+
+static void spapr_phb_unrealize(DeviceState *dev, Error **errp)
+{
+ sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+ SysBusDevice *s = SYS_BUS_DEVICE(dev);
+ PCIHostState *phb = PCI_HOST_BRIDGE(s);
+ sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(phb);
+ sPAPRTCETable *tcet;
+ int i;
+ const unsigned windows_supported = spapr_phb_windows_supported(sphb);
+
+ if (sphb->msi) {
+ g_hash_table_unref(sphb->msi);
+ sphb->msi = NULL;
+ }
+
+ /*
+ * Remove IO/MMIO subregions and aliases, rest should get cleaned
+ * via PHB's unrealize->object_finalize
+ */
+ for (i = windows_supported - 1; i >= 0; i--) {
+ tcet = spapr_tce_find_by_liobn(sphb->dma_liobn[i]);
+ if (tcet) {
+ memory_region_del_subregion(&sphb->iommu_root,
+ spapr_tce_get_iommu(tcet));
+ }
+ }
+
+ if (sphb->dr_enabled) {
+ for (i = PCI_SLOT_MAX * 8 - 1; i >= 0; i--) {
+ sPAPRDRConnector *drc = spapr_drc_by_id(TYPE_SPAPR_DRC_PCI,
+ (sphb->index << 16) | i);
+
+ if (drc) {
+ object_unparent(OBJECT(drc));
+ }
+ }
+ }
+
+ for (i = PCI_NUM_PINS - 1; i >= 0; i--) {
+ if (sphb->lsi_table[i].irq) {
+ spapr_irq_free(spapr, sphb->lsi_table[i].irq, 1);
+ sphb->lsi_table[i].irq = 0;
+ }
+ }
+
+ QLIST_REMOVE(sphb, list);
+
+ memory_region_del_subregion(&sphb->iommu_root, &sphb->msiwindow);
+
+ address_space_destroy(&sphb->iommu_as);
+
+ qbus_set_hotplug_handler(BUS(phb->bus), NULL, &error_abort);
+ pci_unregister_root_bus(phb->bus);
+
+ memory_region_del_subregion(get_system_memory(), &sphb->iowindow);
+ if (sphb->mem64_win_pciaddr != (hwaddr)-1) {
+ memory_region_del_subregion(get_system_memory(), &sphb->mem64window);
+ }
+ memory_region_del_subregion(get_system_memory(), &sphb->mem32window);
+}
+
static void spapr_phb_realize(DeviceState *dev, Error **errp)
{
/* We don't use SPAPR_MACHINE() in order to exit gracefully if the user
sPAPRMachineState *spapr =
(sPAPRMachineState *) object_dynamic_cast(qdev_get_machine(),
TYPE_SPAPR_MACHINE);
+ sPAPRMachineClass *smc = spapr ? SPAPR_MACHINE_GET_CLASS(spapr) : NULL;
SysBusDevice *s = SYS_BUS_DEVICE(dev);
sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(s);
PCIHostState *phb = PCI_HOST_BRIDGE(s);
PCIBus *bus;
uint64_t msi_window_size = 4096;
sPAPRTCETable *tcet;
- const unsigned windows_supported =
- sphb->ddw_enabled ? SPAPR_PCI_DMA_MAX_WINDOWS : 1;
+ const unsigned windows_supported = spapr_phb_windows_supported(sphb);
if (!spapr) {
error_setg(errp, TYPE_SPAPR_PCI_HOST_BRIDGE " needs a pseries machine");
return;
}
- if (sphb->index != (uint32_t)-1) {
- sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
- Error *local_err = NULL;
-
- smc->phb_placement(spapr, sphb->index,
- &sphb->buid, &sphb->io_win_addr,
- &sphb->mem_win_addr, &sphb->mem64_win_addr,
- windows_supported, sphb->dma_liobn, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- return;
- }
- } else {
- error_setg(errp, "\"index\" for PAPR PHB is mandatory");
- return;
- }
+ assert(sphb->index != (uint32_t)-1); /* checked in spapr_phb_pre_plug() */
if (sphb->mem64_win_size != 0) {
if (sphb->mem_win_size > SPAPR_PCI_MEM32_WIN_SIZE) {
&sphb->memspace, &sphb->iospace,
PCI_DEVFN(0, 0), PCI_NUM_PINS, TYPE_PCI_BUS);
phb->bus = bus;
- qbus_set_hotplug_handler(BUS(phb->bus), DEVICE(sphb), NULL);
+ qbus_set_hotplug_handler(BUS(phb->bus), OBJECT(sphb), NULL);
/*
* Initialize PHB address space.
/* Initialize the LSI table */
for (i = 0; i < PCI_NUM_PINS; i++) {
- uint32_t irq;
+ uint32_t irq = SPAPR_IRQ_PCI_LSI + sphb->index * PCI_NUM_PINS + i;
Error *local_err = NULL;
- irq = spapr_irq_alloc_block(spapr, 1, true, false, &local_err);
+ if (smc->legacy_irq_allocation) {
+ irq = spapr_irq_findone(spapr, &local_err);
+ if (local_err) {
+ error_propagate_prepend(errp, local_err,
+ "can't allocate LSIs: ");
+ /*
+ * Older machines will never support PHB hotplug, ie, this is an
+ * init only path and QEMU will terminate. No need to rollback.
+ */
+ return;
+ }
+ }
+
+ spapr_irq_claim(spapr, irq, true, &local_err);
if (local_err) {
- error_propagate(errp, local_err);
- error_prepend(errp, "can't allocate LSIs: ");
- return;
+ error_propagate_prepend(errp, local_err, "can't allocate LSIs: ");
+ goto unrealize;
}
sphb->lsi_table[i].irq = irq;
}
/* DMA setup */
- if (((sphb->page_size_mask & qemu_getrampagesize()) == 0)
- && kvm_enabled()) {
- warn_report("System page size 0x%lx is not enabled in page_size_mask "
- "(0x%"PRIx64"). Performance may be slow",
- qemu_getrampagesize(), sphb->page_size_mask);
- }
-
for (i = 0; i < windows_supported; ++i) {
tcet = spapr_tce_new_table(DEVICE(sphb), sphb->dma_liobn[i]);
if (!tcet) {
error_setg(errp, "Creating window#%d failed for %s",
i, sphb->dtbusname);
- return;
+ goto unrealize;
}
memory_region_add_subregion(&sphb->iommu_root, 0,
spapr_tce_get_iommu(tcet));
}
sphb->msi = g_hash_table_new_full(g_int_hash, g_int_equal, g_free, g_free);
+ return;
+
+unrealize:
+ spapr_phb_unrealize(dev, NULL);
}
static int spapr_phb_children_reset(Object *child, void *opaque)
if (!sphb->msi_devs_num) {
return 0;
}
- sphb->msi_devs = g_malloc(sphb->msi_devs_num * sizeof(spapr_pci_msi_mig));
+ sphb->msi_devs = g_new(spapr_pci_msi_mig, sphb->msi_devs_num);
g_hash_table_iter_init(&iter, sphb->msi);
for (i = 0; g_hash_table_iter_next(&iter, &key, &value); ++i) {
hc->root_bus_path = spapr_phb_root_bus_path;
dc->realize = spapr_phb_realize;
+ dc->unrealize = spapr_phb_unrealize;
dc->props = spapr_phb_properties;
dc->reset = spapr_phb_reset;
dc->vmsd = &vmstate_spapr_pci;
dc->user_creatable = true;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
hp->plug = spapr_pci_plug;
+ hp->unplug = spapr_pci_unplug;
hp->unplug_request = spapr_pci_unplug_request;
}
.name = TYPE_SPAPR_PCI_HOST_BRIDGE,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(sPAPRPHBState),
+ .instance_finalize = spapr_phb_finalizefn,
.class_init = spapr_phb_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_HOTPLUG_HANDLER },
}
};
-PCIHostState *spapr_create_phb(sPAPRMachineState *spapr, int index)
-{
- DeviceState *dev;
-
- dev = qdev_create(NULL, TYPE_SPAPR_PCI_HOST_BRIDGE);
- qdev_prop_set_uint32(dev, "index", index);
- qdev_init_nofail(dev);
-
- return PCI_HOST_BRIDGE(dev);
-}
-
typedef struct sPAPRFDT {
void *fdt;
int node_off;
void *opaque)
{
unsigned int *bus_no = opaque;
- unsigned int primary = *bus_no;
- unsigned int subordinate = 0xff;
PCIBus *sec_bus = NULL;
if ((pci_default_read_config(pdev, PCI_HEADER_TYPE, 1) !=
}
(*bus_no)++;
- pci_default_write_config(pdev, PCI_PRIMARY_BUS, primary, 1);
+ pci_default_write_config(pdev, PCI_PRIMARY_BUS, pci_dev_bus_num(pdev), 1);
pci_default_write_config(pdev, PCI_SECONDARY_BUS, *bus_no, 1);
pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, *bus_no, 1);
return;
}
- pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, subordinate, 1);
pci_for_each_device(sec_bus, pci_bus_num(sec_bus),
spapr_phb_pci_enumerate_bridge, bus_no);
pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, *bus_no, 1);
}
-int spapr_populate_pci_dt(sPAPRPHBState *phb,
- uint32_t xics_phandle,
- void *fdt)
+int spapr_populate_pci_dt(sPAPRPHBState *phb, uint32_t intc_phandle, void *fdt,
+ uint32_t nr_msis, int *node_offset)
{
int bus_off, i, j, ret;
gchar *nodename;
sPAPRTCETable *tcet;
PCIBus *bus = PCI_HOST_BRIDGE(phb)->bus;
sPAPRFDT s_fdt;
+ sPAPRDRConnector *drc;
/* Start populating the FDT */
nodename = g_strdup_printf("pci@%" PRIx64, phb->buid);
_FDT(bus_off = fdt_add_subnode(fdt, 0, nodename));
g_free(nodename);
+ if (node_offset) {
+ *node_offset = bus_off;
+ }
/* Write PHB properties */
_FDT(fdt_setprop_string(fdt, bus_off, "device_type", "pci"));
_FDT(fdt_setprop(fdt, bus_off, "ranges", &ranges, sizeof_ranges));
_FDT(fdt_setprop(fdt, bus_off, "reg", &bus_reg, sizeof(bus_reg)));
_FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pci-config-space-type", 0x1));
- _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pe-total-#msi", XICS_IRQS_SPAPR));
+ _FDT(fdt_setprop_cell(fdt, bus_off, "ibm,pe-total-#msi", nr_msis));
/* Dynamic DMA window */
if (phb->ddw_enabled) {
irqmap[1] = 0;
irqmap[2] = 0;
irqmap[3] = cpu_to_be32(j+1);
- irqmap[4] = cpu_to_be32(xics_phandle);
- spapr_dt_xics_irq(&irqmap[5], phb->lsi_table[lsi_num].irq, true);
+ irqmap[4] = cpu_to_be32(intc_phandle);
+ spapr_dt_irq(&irqmap[5], phb->lsi_table[lsi_num].irq, true);
}
}
/* Write interrupt map */
tcet->liobn, tcet->bus_offset,
tcet->nb_table << tcet->page_shift);
+ drc = spapr_drc_by_id(TYPE_SPAPR_DRC_PHB, phb->index);
+ if (drc) {
+ uint32_t drc_index = cpu_to_be32(spapr_drc_index(drc));
+
+ _FDT(fdt_setprop(fdt, bus_off, "ibm,my-drc-index", &drc_index,
+ sizeof(drc_index)));
+ }
+
/* Walk the bridges and program the bus numbers*/
spapr_phb_pci_enumerate(phb);
_FDT(fdt_setprop_cell(fdt, bus_off, "qemu,phb-enumerated", 0x1));
projects / mirror_qemu.git / blobdiff