diff --git a/default-configs/ppc64-softmmu.mak b/default-configs/ppc64-softmmu.mak index db5a4d6f5e..67a9bcaa67 100644 --- a/default-configs/ppc64-softmmu.mak +++ b/default-configs/ppc64-softmmu.mak @@ -39,6 +39,7 @@ CONFIG_I8259=y CONFIG_XILINX=y CONFIG_XILINX_ETHLITE=y CONFIG_PSERIES=y +CONFIG_POWERNV=y CONFIG_PREP=y CONFIG_MAC=y CONFIG_E500=y diff --git a/hw/ppc/Makefile.objs b/hw/ppc/Makefile.objs index 99a0d4e581..8105db7d56 100644 --- a/hw/ppc/Makefile.objs +++ b/hw/ppc/Makefile.objs @@ -5,6 +5,8 @@ obj-$(CONFIG_PSERIES) += spapr.o spapr_vio.o spapr_events.o obj-$(CONFIG_PSERIES) += spapr_hcall.o spapr_iommu.o spapr_rtas.o obj-$(CONFIG_PSERIES) += spapr_pci.o spapr_rtc.o spapr_drc.o spapr_rng.o obj-$(CONFIG_PSERIES) += spapr_cpu_core.o +# IBM PowerNV +obj-$(CONFIG_POWERNV) += pnv.o ifeq ($(CONFIG_PCI)$(CONFIG_PSERIES)$(CONFIG_LINUX), yyy) obj-y += spapr_pci_vfio.o endif diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c new file mode 100644 index 0000000000..8d9850989b --- /dev/null +++ b/hw/ppc/pnv.c @@ -0,0 +1,226 @@ +/* + * QEMU PowerPC PowerNV machine model + * + * Copyright (c) 2016, IBM Corporation. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "sysemu/sysemu.h" +#include "sysemu/numa.h" +#include "hw/hw.h" +#include "target-ppc/cpu.h" +#include "qemu/log.h" +#include "hw/ppc/fdt.h" +#include "hw/ppc/ppc.h" +#include "hw/ppc/pnv.h" +#include "hw/loader.h" +#include "exec/address-spaces.h" +#include "qemu/cutils.h" + +#include + +#define FDT_MAX_SIZE 0x00100000 + +#define FW_FILE_NAME "skiboot.lid" +#define FW_LOAD_ADDR 0x0 +#define FW_MAX_SIZE 0x00400000 + +#define KERNEL_LOAD_ADDR 0x20000000 +#define INITRD_LOAD_ADDR 0x40000000 + +/* + * On Power Systems E880 (POWER8), the max cpus (threads) should be : + * 4 * 4 sockets * 12 cores * 8 threads = 1536 + * Let's make it 2^11 + */ +#define MAX_CPUS 2048 + +/* + * Memory nodes are created by hostboot, one for each range of memory + * that has a different "affinity". In practice, it means one range + * per chip. + */ +static void powernv_populate_memory_node(void *fdt, int chip_id, hwaddr start, + hwaddr size) +{ + char *mem_name; + uint64_t mem_reg_property[2]; + int off; + + mem_reg_property[0] = cpu_to_be64(start); + mem_reg_property[1] = cpu_to_be64(size); + + mem_name = g_strdup_printf("memory@%"HWADDR_PRIx, start); + off = fdt_add_subnode(fdt, 0, mem_name); + g_free(mem_name); + + _FDT((fdt_setprop_string(fdt, off, "device_type", "memory"))); + _FDT((fdt_setprop(fdt, off, "reg", mem_reg_property, + sizeof(mem_reg_property)))); + _FDT((fdt_setprop_cell(fdt, off, "ibm,chip-id", chip_id))); +} + +static void *powernv_create_fdt(MachineState *machine) +{ + const char plat_compat[] = "qemu,powernv\0ibm,powernv"; + PnvMachineState *pnv = POWERNV_MACHINE(machine); + void *fdt; + char *buf; + int off; + + fdt = g_malloc0(FDT_MAX_SIZE); + _FDT((fdt_create_empty_tree(fdt, FDT_MAX_SIZE))); + + /* Root node */ + _FDT((fdt_setprop_cell(fdt, 0, "#address-cells", 0x2))); + _FDT((fdt_setprop_cell(fdt, 0, "#size-cells", 0x2))); + _FDT((fdt_setprop_string(fdt, 0, "model", + "IBM PowerNV (emulated by qemu)"))); + _FDT((fdt_setprop(fdt, 0, "compatible", plat_compat, + sizeof(plat_compat)))); + + buf = qemu_uuid_unparse_strdup(&qemu_uuid); + _FDT((fdt_setprop_string(fdt, 0, "vm,uuid", buf))); + if (qemu_uuid_set) { + _FDT((fdt_property_string(fdt, "system-id", buf))); + } + g_free(buf); + + off = fdt_add_subnode(fdt, 0, "chosen"); + if (machine->kernel_cmdline) { + _FDT((fdt_setprop_string(fdt, off, "bootargs", + machine->kernel_cmdline))); + } + + if (pnv->initrd_size) { + uint32_t start_prop = cpu_to_be32(pnv->initrd_base); + uint32_t end_prop = cpu_to_be32(pnv->initrd_base + pnv->initrd_size); + + _FDT((fdt_setprop(fdt, off, "linux,initrd-start", + &start_prop, sizeof(start_prop)))); + _FDT((fdt_setprop(fdt, off, "linux,initrd-end", + &end_prop, sizeof(end_prop)))); + } + + /* TODO: put all the memory in one node on chip 0 until we find a + * way to specify different ranges for each chip + */ + powernv_populate_memory_node(fdt, 0, 0, machine->ram_size); + + return fdt; +} + +static void ppc_powernv_reset(void) +{ + MachineState *machine = MACHINE(qdev_get_machine()); + void *fdt; + + qemu_devices_reset(); + + fdt = powernv_create_fdt(machine); + + /* Pack resulting tree */ + _FDT((fdt_pack(fdt))); + + cpu_physical_memory_write(PNV_FDT_ADDR, fdt, fdt_totalsize(fdt)); +} + +static void ppc_powernv_init(MachineState *machine) +{ + PnvMachineState *pnv = POWERNV_MACHINE(machine); + MemoryRegion *ram; + char *fw_filename; + long fw_size; + + /* allocate RAM */ + if (machine->ram_size < (1 * G_BYTE)) { + error_report("Warning: skiboot may not work with < 1GB of RAM"); + } + + ram = g_new(MemoryRegion, 1); + memory_region_allocate_system_memory(ram, NULL, "ppc_powernv.ram", + machine->ram_size); + memory_region_add_subregion(get_system_memory(), 0, ram); + + /* load skiboot firmware */ + if (bios_name == NULL) { + bios_name = FW_FILE_NAME; + } + + fw_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); + + fw_size = load_image_targphys(fw_filename, FW_LOAD_ADDR, FW_MAX_SIZE); + if (fw_size < 0) { + hw_error("qemu: could not load OPAL '%s'\n", fw_filename); + exit(1); + } + g_free(fw_filename); + + /* load kernel */ + if (machine->kernel_filename) { + long kernel_size; + + kernel_size = load_image_targphys(machine->kernel_filename, + KERNEL_LOAD_ADDR, 0x2000000); + if (kernel_size < 0) { + hw_error("qemu: could not load kernel'%s'\n", + machine->kernel_filename); + exit(1); + } + } + + /* load initrd */ + if (machine->initrd_filename) { + pnv->initrd_base = INITRD_LOAD_ADDR; + pnv->initrd_size = load_image_targphys(machine->initrd_filename, + pnv->initrd_base, 0x10000000); /* 128MB max */ + if (pnv->initrd_size < 0) { + error_report("qemu: could not load initial ram disk '%s'", + machine->initrd_filename); + exit(1); + } + } +} + +static void powernv_machine_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + mc->desc = "IBM PowerNV (Non-Virtualized)"; + mc->init = ppc_powernv_init; + mc->reset = ppc_powernv_reset; + mc->max_cpus = MAX_CPUS; + mc->block_default_type = IF_IDE; /* Pnv provides a AHCI device for + * storage */ + mc->no_parallel = 1; + mc->default_boot_order = NULL; + mc->default_ram_size = 1 * G_BYTE; +} + +static const TypeInfo powernv_machine_info = { + .name = TYPE_POWERNV_MACHINE, + .parent = TYPE_MACHINE, + .instance_size = sizeof(PnvMachineState), + .class_init = powernv_machine_class_init, +}; + +static void powernv_machine_register_types(void) +{ + type_register_static(&powernv_machine_info); +} + +type_init(powernv_machine_register_types) diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h new file mode 100644 index 0000000000..474fe9c697 --- /dev/null +++ b/include/hw/ppc/pnv.h @@ -0,0 +1,38 @@ +/* + * QEMU PowerPC PowerNV various definitions + * + * Copyright (c) 2014-2016 BenH, IBM Corporation. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ +#ifndef _PPC_PNV_H +#define _PPC_PNV_H + +#include "hw/boards.h" + +#define TYPE_POWERNV_MACHINE MACHINE_TYPE_NAME("powernv") +#define POWERNV_MACHINE(obj) \ + OBJECT_CHECK(PnvMachineState, (obj), TYPE_POWERNV_MACHINE) + +typedef struct PnvMachineState { + /*< private >*/ + MachineState parent_obj; + + uint32_t initrd_base; + long initrd_size; +} PnvMachineState; + +#define PNV_FDT_ADDR 0x01000000 + +#endif /* _PPC_PNV_H */