[Qemu-devel] [PATCH v4 14/17] spapr_pci: populate DRC dt entries for PHBs

[Michael Roth <mdroth@linux.vnet.ibm.com>]

Reserve 32 entries of type PCI in each PHB's initial FDT. This
advertises to guests that each PHB is DR-capable device with
physical hotpluggable slots. This is necessary for allowing
hotplugging of devices to it later via bus rescan or guest rpaphp
hotplug module.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 hw/ppc/spapr_pci.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 73e86a4..a5d7791 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -47,6 +47,8 @@
 #define RTAS_TYPE_MSI           1
 #define RTAS_TYPE_MSIX          2
 
+#define FDT_MAX_SIZE            0x10000
+
 #include "hw/ppc/spapr_drc.h"
 
 static sPAPRPHBState *find_phb(sPAPREnvironment *spapr, uint64_t buid)
@@ -872,7 +874,7 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb,
                           uint32_t xics_phandle,
                           void *fdt)
 {
-    int bus_off, i, j;
+    int bus_off, i, j, ret;
     char nodename[256];
     uint32_t bus_range[] = { cpu_to_be32(0), cpu_to_be32(0xff) };
     struct {
@@ -951,6 +953,11 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb,
     object_child_foreach(OBJECT(phb), spapr_phb_children_dt,
                          &((sPAPRTCEDT){ .fdt = fdt, .node_off = bus_off }));
 
+    ret = spapr_drc_populate_dt(fdt, bus_off, SPAPR_DR_CONNECTOR_TYPE_PCI);
+    if (ret) {
+        return ret;
+    }
+
     return 0;
 }
 
-- 
1.9.1