diff options
Diffstat (limited to 'hw/ppc/spapr.c')
| -rw-r--r-- | hw/ppc/spapr.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index fc4c3c98c8..2bfd187bc5 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -2370,6 +2370,36 @@ static HotpluggableCPUList *spapr_query_hotpluggable_cpus(MachineState *machine) return head; } +static void spapr_phb_placement(sPAPRMachineState *spapr, uint32_t index, + uint64_t *buid, hwaddr *pio, hwaddr *mmio, + unsigned n_dma, uint32_t *liobns, Error **errp) +{ + const uint64_t base_buid = 0x800000020000000ULL; + const hwaddr phb0_base = 0x10000000000ULL; /* 1 TiB */ + const hwaddr phb_spacing = 0x1000000000ULL; /* 64 GiB */ + const hwaddr mmio_offset = 0xa0000000; /* 2 GiB + 512 MiB */ + const hwaddr pio_offset = 0x80000000; /* 2 GiB */ + const uint32_t max_index = 255; + + hwaddr phb_base; + int i; + + if (index > max_index) { + error_setg(errp, "\"index\" for PAPR PHB is too large (max %u)", + max_index); + return; + } + + *buid = base_buid + index; + for (i = 0; i < n_dma; ++i) { + liobns[i] = SPAPR_PCI_LIOBN(index, i); + } + + phb_base = phb0_base + index * phb_spacing; + *pio = phb_base + pio_offset; + *mmio = phb_base + mmio_offset; +} + static void spapr_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); @@ -2406,6 +2436,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data) mc->query_hotpluggable_cpus = spapr_query_hotpluggable_cpus; fwc->get_dev_path = spapr_get_fw_dev_path; nc->nmi_monitor_handler = spapr_nmi; + smc->phb_placement = spapr_phb_placement; } static const TypeInfo spapr_machine_info = { |