diff mbox series

[v3,13/19] spapr_pci: add ibm, my-drc-index property for PHB hotplug

Message ID 154774535181.1208625.4841042055649769223.stgit@bahia.lan
State New
Headers show
Series spapr: Add support for PHB hotplug | expand

Commit Message

Greg Kurz Jan. 17, 2019, 5:15 p.m. UTC 
From: Michael Roth <mdroth@linux.vnet.ibm.com>

This is needed to denote a boot-time PHB as being hot-pluggable.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
---
 hw/ppc/spapr_pci.c |    9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index e85cb31e0447..a0311560e47b 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -2189,6 +2189,7 @@  int spapr_populate_pci_dt(sPAPRPHBState *phb, uint32_t intc_phandle, void *fdt,
     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);
@@ -2255,6 +2256,14 @@  int spapr_populate_pci_dt(sPAPRPHBState *phb, uint32_t intc_phandle, void *fdt,
                  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));