diff options
Diffstat (limited to 'hw/ppc/spapr_pci.c')
| -rw-r--r-- | hw/ppc/spapr_pci.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 6deeb19e3f..cebdeb3516 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -868,6 +868,10 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb, int bus_off, i, j; char nodename[256]; uint32_t bus_range[] = { cpu_to_be32(0), cpu_to_be32(0xff) }; + const uint64_t mmiosize = memory_region_size(&phb->memwindow); + const uint64_t w32max = (1ULL << 32) - SPAPR_PCI_MEM_WIN_BUS_OFFSET; + const uint64_t w32size = MIN(w32max, mmiosize); + const uint64_t w64size = (mmiosize > w32size) ? (mmiosize - w32size) : 0; struct { uint32_t hi; uint64_t child; @@ -882,9 +886,15 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb, { cpu_to_be32(b_ss(2)), cpu_to_be64(SPAPR_PCI_MEM_WIN_BUS_OFFSET), cpu_to_be64(phb->mem_win_addr), - cpu_to_be64(memory_region_size(&phb->memwindow)), + cpu_to_be64(w32size), + }, + { + cpu_to_be32(b_ss(3)), cpu_to_be64(1ULL << 32), + cpu_to_be64(phb->mem_win_addr + w32size), + cpu_to_be64(w64size) }, }; + const unsigned sizeof_ranges = (w64size ? 3 : 2) * sizeof(ranges[0]); uint64_t bus_reg[] = { cpu_to_be64(phb->buid), 0 }; uint32_t interrupt_map_mask[] = { cpu_to_be32(b_ddddd(-1)|b_fff(0)), 0x0, 0x0, cpu_to_be32(-1)}; @@ -913,7 +923,7 @@ int spapr_populate_pci_dt(sPAPRPHBState *phb, _FDT(fdt_setprop_cell(fdt, bus_off, "#interrupt-cells", 0x1)); _FDT(fdt_setprop(fdt, bus_off, "used-by-rtas", NULL, 0)); _FDT(fdt_setprop(fdt, bus_off, "bus-range", &bus_range, sizeof(bus_range))); - _FDT(fdt_setprop(fdt, bus_off, "ranges", &ranges, sizeof(ranges))); + _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)); |