diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/Kconfig | 1 | ||||
| -rw-r--r-- | hw/loongarch/Kconfig | 4 | ||||
| -rw-r--r-- | hw/loongarch/loongson3.c | 94 | ||||
| -rw-r--r-- | hw/loongarch/meson.build | 4 | ||||
| -rw-r--r-- | hw/meson.build | 1 |
5 files changed, 104 insertions, 0 deletions
diff --git a/hw/Kconfig b/hw/Kconfig index 50e0952889..38233bbb0f 100644 --- a/hw/Kconfig +++ b/hw/Kconfig @@ -50,6 +50,7 @@ source avr/Kconfig source cris/Kconfig source hppa/Kconfig source i386/Kconfig +source loongarch/Kconfig source m68k/Kconfig source microblaze/Kconfig source mips/Kconfig diff --git a/hw/loongarch/Kconfig b/hw/loongarch/Kconfig new file mode 100644 index 0000000000..13e8501897 --- /dev/null +++ b/hw/loongarch/Kconfig @@ -0,0 +1,4 @@ +config LOONGARCH_VIRT + bool + select PCI + select PCI_EXPRESS_GENERIC_BRIDGE diff --git a/hw/loongarch/loongson3.c b/hw/loongarch/loongson3.c new file mode 100644 index 0000000000..7df32f777e --- /dev/null +++ b/hw/loongarch/loongson3.c @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * QEMU loongson 3a5000 develop board emulation + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ +#include "qemu/osdep.h" +#include "qemu/units.h" +#include "qemu/datadir.h" +#include "qapi/error.h" +#include "hw/boards.h" +#include "sysemu/sysemu.h" +#include "sysemu/qtest.h" +#include "sysemu/runstate.h" +#include "sysemu/reset.h" +#include "sysemu/rtc.h" +#include "hw/loongarch/virt.h" +#include "exec/address-spaces.h" +#include "target/loongarch/cpu.h" + +static void loongarch_init(MachineState *machine) +{ + const char *cpu_model = machine->cpu_type; + ram_addr_t offset = 0; + ram_addr_t ram_size = machine->ram_size; + uint64_t highram_size = 0; + MemoryRegion *address_space_mem = get_system_memory(); + LoongArchMachineState *lams = LOONGARCH_MACHINE(machine); + int i; + + if (!cpu_model) { + cpu_model = LOONGARCH_CPU_TYPE_NAME("la464"); + } + + if (!strstr(cpu_model, "la464")) { + error_report("LoongArch/TCG needs cpu type la464"); + exit(1); + } + + if (ram_size < 1 * GiB) { + error_report("ram_size must be greater than 1G."); + exit(1); + } + + /* Init CPUs */ + for (i = 0; i < machine->smp.cpus; i++) { + cpu_create(machine->cpu_type); + } + + /* Add memory region */ + memory_region_init_alias(&lams->lowmem, NULL, "loongarch.lowram", + machine->ram, 0, 256 * MiB); + memory_region_add_subregion(address_space_mem, offset, &lams->lowmem); + offset += 256 * MiB; + + highram_size = ram_size - 256 * MiB; + memory_region_init_alias(&lams->highmem, NULL, "loongarch.highmem", + machine->ram, offset, highram_size); + memory_region_add_subregion(address_space_mem, 0x90000000, &lams->highmem); + + /* Add isa io region */ + memory_region_init_alias(&lams->isa_io, NULL, "isa-io", + get_system_io(), 0, LOONGARCH_ISA_IO_SIZE); + memory_region_add_subregion(address_space_mem, LOONGARCH_ISA_IO_BASE, + &lams->isa_io); +} + +static void loongarch_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + mc->desc = "Loongson-3A5000 LS7A1000 machine"; + mc->init = loongarch_init; + mc->default_ram_size = 1 * GiB; + mc->default_cpu_type = LOONGARCH_CPU_TYPE_NAME("la464"); + mc->default_ram_id = "loongarch.ram"; + mc->max_cpus = LOONGARCH_MAX_VCPUS; + mc->is_default = 1; + mc->default_kernel_irqchip_split = false; + mc->block_default_type = IF_VIRTIO; + mc->default_boot_order = "c"; + mc->no_cdrom = 1; +} + +static const TypeInfo loongarch_machine_types[] = { + { + .name = TYPE_LOONGARCH_MACHINE, + .parent = TYPE_MACHINE, + .instance_size = sizeof(LoongArchMachineState), + .class_init = loongarch_class_init, + } +}; + +DEFINE_TYPES(loongarch_machine_types) diff --git a/hw/loongarch/meson.build b/hw/loongarch/meson.build new file mode 100644 index 0000000000..cecb1a5d65 --- /dev/null +++ b/hw/loongarch/meson.build @@ -0,0 +1,4 @@ +loongarch_ss = ss.source_set() +loongarch_ss.add(when: 'CONFIG_LOONGARCH_VIRT', if_true: files('loongson3.c')) + +hw_arch += {'loongarch': loongarch_ss} diff --git a/hw/meson.build b/hw/meson.build index 9992c5101e..c7ac7d3d75 100644 --- a/hw/meson.build +++ b/hw/meson.build @@ -50,6 +50,7 @@ subdir('avr') subdir('cris') subdir('hppa') subdir('i386') +subdir('loongarch') subdir('m68k') subdir('microblaze') subdir('mips') |