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spapr/pci: Generate FDT fragment at configure connector time

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Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155059667346.1466090.326696113231137772.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2019-02-19 18:17:53 +01:00 committed by David Gibson
parent 345b12b99e
commit 46fd02990d
3 changed files with 16 additions and 8 deletions
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1
hw/ppc/spapr_drc.c
View File

@ -691,6 +691,7 @@ static void spapr_drc_pci_class_init(ObjectClass *k, void *data)
drck->typename = "28";
drck->drc_name_prefix = "C";
drck->release = spapr_phb_remove_pci_device_cb;
drck->dt_populate = spapr_pci_dt_populate;
}
static void spapr_drc_lmb_class_init(ObjectClass *k, void *data)

19
hw/ppc/spapr_pci.c
View File

@ -1408,6 +1408,17 @@ static uint32_t spapr_phb_get_pci_drc_index(sPAPRPHBState *phb,
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)
{
@ -1417,8 +1428,6 @@ static void spapr_pci_plug(HotplugHandler *plug_handler,
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
@ -1448,10 +1457,7 @@ static void spapr_pci_plug(HotplugHandler *plug_handler,
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), NULL, 0, &local_err);
if (local_err) {
goto out;
}
@ -1483,7 +1489,6 @@ static void spapr_pci_plug(HotplugHandler *plug_handler,
out:
if (local_err) {
error_propagate(errp, local_err);
g_free(fdt);
}
}

4
include/hw/pci-host/spapr.h
View File

@ -121,8 +121,10 @@ sPAPRPHBState *spapr_pci_find_phb(sPAPRMachineState *spapr, uint64_t buid);
PCIDevice *spapr_pci_find_dev(sPAPRMachineState *spapr, uint64_t buid,
uint32_t config_addr);
/* PCI release callback. */
/* DRC callbacks */
void spapr_phb_remove_pci_device_cb(DeviceState *dev);
int spapr_pci_dt_populate(sPAPRDRConnector *drc, sPAPRMachineState *spapr,
void *fdt, int *fdt_start_offset, Error **errp);
/* VFIO EEH hooks */
#ifdef CONFIG_LINUX