diff options
Diffstat (limited to 'hw/loongarch/virt.c')
| -rw-r--r-- | hw/loongarch/virt.c | 781 |
1 files changed, 781 insertions, 0 deletions
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c new file mode 100644 index 0000000..5cc0b05 --- /dev/null +++ b/hw/loongarch/virt.c @@ -0,0 +1,781 @@ +/* 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 "hw/char/serial.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 "hw/irq.h" +#include "net/net.h" +#include "hw/loader.h" +#include "elf.h" +#include "hw/intc/loongarch_ipi.h" +#include "hw/intc/loongarch_extioi.h" +#include "hw/intc/loongarch_pch_pic.h" +#include "hw/intc/loongarch_pch_msi.h" +#include "hw/pci-host/ls7a.h" +#include "hw/pci-host/gpex.h" +#include "hw/misc/unimp.h" +#include "hw/loongarch/fw_cfg.h" +#include "target/loongarch/cpu.h" +#include "hw/firmware/smbios.h" +#include "hw/acpi/aml-build.h" +#include "qapi/qapi-visit-common.h" +#include "hw/acpi/generic_event_device.h" +#include "hw/mem/nvdimm.h" +#include "sysemu/device_tree.h" +#include <libfdt.h> + +static void create_fdt(LoongArchMachineState *lams) +{ + MachineState *ms = MACHINE(lams); + + ms->fdt = create_device_tree(&lams->fdt_size); + if (!ms->fdt) { + error_report("create_device_tree() failed"); + exit(1); + } + + /* Header */ + qemu_fdt_setprop_string(ms->fdt, "/", "compatible", + "linux,dummy-loongson3"); + qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); + qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); +} + +static void fdt_add_cpu_nodes(const LoongArchMachineState *lams) +{ + int num; + const MachineState *ms = MACHINE(lams); + int smp_cpus = ms->smp.cpus; + + qemu_fdt_add_subnode(ms->fdt, "/cpus"); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); + qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); + + /* cpu nodes */ + for (num = smp_cpus - 1; num >= 0; num--) { + char *nodename = g_strdup_printf("/cpus/cpu@%d", num); + LoongArchCPU *cpu = LOONGARCH_CPU(qemu_get_cpu(num)); + + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu"); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", + cpu->dtb_compatible); + qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", num); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", + qemu_fdt_alloc_phandle(ms->fdt)); + g_free(nodename); + } + + /*cpu map */ + qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); + + for (num = smp_cpus - 1; num >= 0; num--) { + char *cpu_path = g_strdup_printf("/cpus/cpu@%d", num); + char *map_path; + + if (ms->smp.threads > 1) { + map_path = g_strdup_printf( + "/cpus/cpu-map/socket%d/core%d/thread%d", + num / (ms->smp.cores * ms->smp.threads), + (num / ms->smp.threads) % ms->smp.cores, + num % ms->smp.threads); + } else { + map_path = g_strdup_printf( + "/cpus/cpu-map/socket%d/core%d", + num / ms->smp.cores, + num % ms->smp.cores); + } + qemu_fdt_add_path(ms->fdt, map_path); + qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path); + + g_free(map_path); + g_free(cpu_path); + } +} + +static void fdt_add_fw_cfg_node(const LoongArchMachineState *lams) +{ + char *nodename; + hwaddr base = VIRT_FWCFG_BASE; + const MachineState *ms = MACHINE(lams); + + nodename = g_strdup_printf("/fw_cfg@%" PRIx64, base); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, + "compatible", "qemu,fw-cfg-mmio"); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", + 2, base, 2, 0x8); + qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); + g_free(nodename); +} + +static void fdt_add_pcie_node(const LoongArchMachineState *lams) +{ + char *nodename; + hwaddr base_mmio = VIRT_PCI_MEM_BASE; + hwaddr size_mmio = VIRT_PCI_MEM_SIZE; + hwaddr base_pio = VIRT_PCI_IO_BASE; + hwaddr size_pio = VIRT_PCI_IO_SIZE; + hwaddr base_pcie = VIRT_PCI_CFG_BASE; + hwaddr size_pcie = VIRT_PCI_CFG_SIZE; + hwaddr base = base_pcie; + + const MachineState *ms = MACHINE(lams); + + nodename = g_strdup_printf("/pcie@%" PRIx64, base); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_string(ms->fdt, nodename, + "compatible", "pci-host-ecam-generic"); + qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci"); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2); + qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0); + qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0, + PCIE_MMCFG_BUS(VIRT_PCI_CFG_SIZE - 1)); + qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", + 2, base_pcie, 2, size_pcie); + qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", + 1, FDT_PCI_RANGE_IOPORT, 2, VIRT_PCI_IO_OFFSET, + 2, base_pio, 2, size_pio, + 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, + 2, base_mmio, 2, size_mmio); + g_free(nodename); + qemu_fdt_dumpdtb(ms->fdt, lams->fdt_size); +} + + +#define PM_BASE 0x10080000 +#define PM_SIZE 0x100 +#define PM_CTRL 0x10 + +static void virt_build_smbios(LoongArchMachineState *lams) +{ + MachineState *ms = MACHINE(lams); + MachineClass *mc = MACHINE_GET_CLASS(lams); + uint8_t *smbios_tables, *smbios_anchor; + size_t smbios_tables_len, smbios_anchor_len; + const char *product = "QEMU Virtual Machine"; + + if (!lams->fw_cfg) { + return; + } + + smbios_set_defaults("QEMU", product, mc->name, false, + true, SMBIOS_ENTRY_POINT_TYPE_64); + + smbios_get_tables(ms, NULL, 0, &smbios_tables, &smbios_tables_len, + &smbios_anchor, &smbios_anchor_len, &error_fatal); + + if (smbios_anchor) { + fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-tables", + smbios_tables, smbios_tables_len); + fw_cfg_add_file(lams->fw_cfg, "etc/smbios/smbios-anchor", + smbios_anchor, smbios_anchor_len); + } +} + +static void virt_machine_done(Notifier *notifier, void *data) +{ + LoongArchMachineState *lams = container_of(notifier, + LoongArchMachineState, machine_done); + virt_build_smbios(lams); + loongarch_acpi_setup(lams); +} + +struct memmap_entry { + uint64_t address; + uint64_t length; + uint32_t type; + uint32_t reserved; +}; + +static struct memmap_entry *memmap_table; +static unsigned memmap_entries; + +static void memmap_add_entry(uint64_t address, uint64_t length, uint32_t type) +{ + /* Ensure there are no duplicate entries. */ + for (unsigned i = 0; i < memmap_entries; i++) { + assert(memmap_table[i].address != address); + } + + memmap_table = g_renew(struct memmap_entry, memmap_table, + memmap_entries + 1); + memmap_table[memmap_entries].address = cpu_to_le64(address); + memmap_table[memmap_entries].length = cpu_to_le64(length); + memmap_table[memmap_entries].type = cpu_to_le32(type); + memmap_table[memmap_entries].reserved = 0; + memmap_entries++; +} + +/* + * This is a placeholder for missing ACPI, + * and will eventually be replaced. + */ +static uint64_t loongarch_virt_pm_read(void *opaque, hwaddr addr, unsigned size) +{ + return 0; +} + +static void loongarch_virt_pm_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + if (addr != PM_CTRL) { + return; + } + + switch (val) { + case 0x00: + qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); + return; + case 0xff: + qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + return; + default: + return; + } +} + +static const MemoryRegionOps loongarch_virt_pm_ops = { + .read = loongarch_virt_pm_read, + .write = loongarch_virt_pm_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 1 + } +}; + +static struct _loaderparams { + uint64_t ram_size; + const char *kernel_filename; + const char *kernel_cmdline; + const char *initrd_filename; +} loaderparams; + +static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr) +{ + return addr & 0x1fffffffll; +} + +static int64_t load_kernel_info(void) +{ + uint64_t kernel_entry, kernel_low, kernel_high; + ssize_t kernel_size; + + kernel_size = load_elf(loaderparams.kernel_filename, NULL, + cpu_loongarch_virt_to_phys, NULL, + &kernel_entry, &kernel_low, + &kernel_high, NULL, 0, + EM_LOONGARCH, 1, 0); + + if (kernel_size < 0) { + error_report("could not load kernel '%s': %s", + loaderparams.kernel_filename, + load_elf_strerror(kernel_size)); + exit(1); + } + return kernel_entry; +} + +static DeviceState *create_acpi_ged(DeviceState *pch_pic, LoongArchMachineState *lams) +{ + DeviceState *dev; + MachineState *ms = MACHINE(lams); + uint32_t event = ACPI_GED_PWR_DOWN_EVT; + + if (ms->ram_slots) { + event |= ACPI_GED_MEM_HOTPLUG_EVT; + } + dev = qdev_new(TYPE_ACPI_GED); + qdev_prop_set_uint32(dev, "ged-event", event); + + /* ged event */ + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, VIRT_GED_EVT_ADDR); + /* memory hotplug */ + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, VIRT_GED_MEM_ADDR); + /* ged regs used for reset and power down */ + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, VIRT_GED_REG_ADDR); + + sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, + qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - PCH_PIC_IRQ_OFFSET)); + sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); + return dev; +} + +static void loongarch_devices_init(DeviceState *pch_pic, LoongArchMachineState *lams) +{ + DeviceState *gpex_dev; + SysBusDevice *d; + PCIBus *pci_bus; + MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg; + MemoryRegion *mmio_alias, *mmio_reg, *pm_mem; + int i; + + gpex_dev = qdev_new(TYPE_GPEX_HOST); + d = SYS_BUS_DEVICE(gpex_dev); + sysbus_realize_and_unref(d, &error_fatal); + pci_bus = PCI_HOST_BRIDGE(gpex_dev)->bus; + + /* Map only part size_ecam bytes of ECAM space */ + ecam_alias = g_new0(MemoryRegion, 1); + ecam_reg = sysbus_mmio_get_region(d, 0); + memory_region_init_alias(ecam_alias, OBJECT(gpex_dev), "pcie-ecam", + ecam_reg, 0, VIRT_PCI_CFG_SIZE); + memory_region_add_subregion(get_system_memory(), VIRT_PCI_CFG_BASE, + ecam_alias); + + /* Map PCI mem space */ + mmio_alias = g_new0(MemoryRegion, 1); + mmio_reg = sysbus_mmio_get_region(d, 1); + memory_region_init_alias(mmio_alias, OBJECT(gpex_dev), "pcie-mmio", + mmio_reg, VIRT_PCI_MEM_BASE, VIRT_PCI_MEM_SIZE); + memory_region_add_subregion(get_system_memory(), VIRT_PCI_MEM_BASE, + mmio_alias); + + /* Map PCI IO port space. */ + pio_alias = g_new0(MemoryRegion, 1); + pio_reg = sysbus_mmio_get_region(d, 2); + memory_region_init_alias(pio_alias, OBJECT(gpex_dev), "pcie-io", pio_reg, + VIRT_PCI_IO_OFFSET, VIRT_PCI_IO_SIZE); + memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE, + pio_alias); + + for (i = 0; i < GPEX_NUM_IRQS; i++) { + sysbus_connect_irq(d, i, + qdev_get_gpio_in(pch_pic, 16 + i)); + gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i); + } + + serial_mm_init(get_system_memory(), VIRT_UART_BASE, 0, + qdev_get_gpio_in(pch_pic, + VIRT_UART_IRQ - PCH_PIC_IRQ_OFFSET), + 115200, serial_hd(0), DEVICE_LITTLE_ENDIAN); + + /* Network init */ + for (i = 0; i < nb_nics; i++) { + NICInfo *nd = &nd_table[i]; + + if (!nd->model) { + nd->model = g_strdup("virtio"); + } + + pci_nic_init_nofail(nd, pci_bus, nd->model, NULL); + } + + /* VGA setup */ + pci_vga_init(pci_bus); + + /* + * There are some invalid guest memory access. + * Create some unimplemented devices to emulate this. + */ + create_unimplemented_device("pci-dma-cfg", 0x1001041c, 0x4); + sysbus_create_simple("ls7a_rtc", VIRT_RTC_REG_BASE, + qdev_get_gpio_in(pch_pic, + VIRT_RTC_IRQ - PCH_PIC_IRQ_OFFSET)); + + pm_mem = g_new(MemoryRegion, 1); + memory_region_init_io(pm_mem, NULL, &loongarch_virt_pm_ops, + NULL, "loongarch_virt_pm", PM_SIZE); + memory_region_add_subregion(get_system_memory(), PM_BASE, pm_mem); + /* acpi ged */ + lams->acpi_ged = create_acpi_ged(pch_pic, lams); +} + +static void loongarch_irq_init(LoongArchMachineState *lams) +{ + MachineState *ms = MACHINE(lams); + DeviceState *pch_pic, *pch_msi, *cpudev; + DeviceState *ipi, *extioi; + SysBusDevice *d; + LoongArchCPU *lacpu; + CPULoongArchState *env; + CPUState *cpu_state; + int cpu, pin, i; + + ipi = qdev_new(TYPE_LOONGARCH_IPI); + sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal); + + extioi = qdev_new(TYPE_LOONGARCH_EXTIOI); + sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal); + + /* + * The connection of interrupts: + * +-----+ +---------+ +-------+ + * | IPI |--> | CPUINTC | <-- | Timer | + * +-----+ +---------+ +-------+ + * ^ + * | + * +---------+ + * | EIOINTC | + * +---------+ + * ^ ^ + * | | + * +---------+ +---------+ + * | PCH-PIC | | PCH-MSI | + * +---------+ +---------+ + * ^ ^ ^ + * | | | + * +--------+ +---------+ +---------+ + * | UARTs | | Devices | | Devices | + * +--------+ +---------+ +---------+ + */ + for (cpu = 0; cpu < ms->smp.cpus; cpu++) { + cpu_state = qemu_get_cpu(cpu); + cpudev = DEVICE(cpu_state); + lacpu = LOONGARCH_CPU(cpu_state); + env = &(lacpu->env); + + /* connect ipi irq to cpu irq */ + qdev_connect_gpio_out(ipi, cpu, qdev_get_gpio_in(cpudev, IRQ_IPI)); + /* IPI iocsr memory region */ + memory_region_add_subregion(&env->system_iocsr, SMP_IPI_MAILBOX, + sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), + cpu * 2)); + memory_region_add_subregion(&env->system_iocsr, MAIL_SEND_ADDR, + sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), + cpu * 2 + 1)); + /* extioi iocsr memory region */ + memory_region_add_subregion(&env->system_iocsr, APIC_BASE, + sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), + cpu)); + } + + /* + * connect ext irq to the cpu irq + * cpu_pin[9:2] <= intc_pin[7:0] + */ + for (cpu = 0; cpu < ms->smp.cpus; cpu++) { + cpudev = DEVICE(qemu_get_cpu(cpu)); + for (pin = 0; pin < LS3A_INTC_IP; pin++) { + qdev_connect_gpio_out(extioi, (cpu * 8 + pin), + qdev_get_gpio_in(cpudev, pin + 2)); + } + } + + pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC); + d = SYS_BUS_DEVICE(pch_pic); + sysbus_realize_and_unref(d, &error_fatal); + memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE, + sysbus_mmio_get_region(d, 0)); + memory_region_add_subregion(get_system_memory(), + VIRT_IOAPIC_REG_BASE + PCH_PIC_ROUTE_ENTRY_OFFSET, + sysbus_mmio_get_region(d, 1)); + memory_region_add_subregion(get_system_memory(), + VIRT_IOAPIC_REG_BASE + PCH_PIC_INT_STATUS_LO, + sysbus_mmio_get_region(d, 2)); + + /* Connect 64 pch_pic irqs to extioi */ + for (int i = 0; i < PCH_PIC_IRQ_NUM; i++) { + qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i)); + } + + pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI); + qdev_prop_set_uint32(pch_msi, "msi_irq_base", PCH_MSI_IRQ_START); + d = SYS_BUS_DEVICE(pch_msi); + sysbus_realize_and_unref(d, &error_fatal); + sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW); + for (i = 0; i < PCH_MSI_IRQ_NUM; i++) { + /* Connect 192 pch_msi irqs to extioi */ + qdev_connect_gpio_out(DEVICE(d), i, + qdev_get_gpio_in(extioi, i + PCH_MSI_IRQ_START)); + } + + loongarch_devices_init(pch_pic, lams); +} + +static void loongarch_firmware_init(LoongArchMachineState *lams) +{ + char *filename = MACHINE(lams)->firmware; + char *bios_name = NULL; + int bios_size; + + lams->bios_loaded = false; + if (filename) { + bios_name = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename); + if (!bios_name) { + error_report("Could not find ROM image '%s'", filename); + exit(1); + } + + bios_size = load_image_targphys(bios_name, VIRT_BIOS_BASE, VIRT_BIOS_SIZE); + if (bios_size < 0) { + error_report("Could not load ROM image '%s'", bios_name); + exit(1); + } + + g_free(bios_name); + + memory_region_init_ram(&lams->bios, NULL, "loongarch.bios", + VIRT_BIOS_SIZE, &error_fatal); + memory_region_set_readonly(&lams->bios, true); + memory_region_add_subregion(get_system_memory(), VIRT_BIOS_BASE, &lams->bios); + lams->bios_loaded = true; + } + +} + +static void reset_load_elf(void *opaque) +{ + LoongArchCPU *cpu = opaque; + CPULoongArchState *env = &cpu->env; + + cpu_reset(CPU(cpu)); + if (env->load_elf) { + cpu_set_pc(CPU(cpu), env->elf_address); + } +} + +/* Load an image file into an fw_cfg entry identified by key. */ +static void load_image_to_fw_cfg(FWCfgState *fw_cfg, uint16_t size_key, + uint16_t data_key, const char *image_name, + bool try_decompress) +{ + size_t size = -1; + uint8_t *data; + + if (image_name == NULL) { + return; + } + + if (try_decompress) { + size = load_image_gzipped_buffer(image_name, + LOAD_IMAGE_MAX_GUNZIP_BYTES, &data); + } + + if (size == (size_t)-1) { + gchar *contents; + gsize length; + + if (!g_file_get_contents(image_name, &contents, &length, NULL)) { + error_report("failed to load \"%s\"", image_name); + exit(1); + } + size = length; + data = (uint8_t *)contents; + } + + fw_cfg_add_i32(fw_cfg, size_key, size); + fw_cfg_add_bytes(fw_cfg, data_key, data, size); +} + +static void fw_cfg_add_kernel_info(FWCfgState *fw_cfg) +{ + /* + * Expose the kernel, the command line, and the initrd in fw_cfg. + * We don't process them here at all, it's all left to the + * firmware. + */ + load_image_to_fw_cfg(fw_cfg, + FW_CFG_KERNEL_SIZE, FW_CFG_KERNEL_DATA, + loaderparams.kernel_filename, + false); + + if (loaderparams.initrd_filename) { + load_image_to_fw_cfg(fw_cfg, + FW_CFG_INITRD_SIZE, FW_CFG_INITRD_DATA, + loaderparams.initrd_filename, false); + } + + if (loaderparams.kernel_cmdline) { + fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, + strlen(loaderparams.kernel_cmdline) + 1); + fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, + loaderparams.kernel_cmdline); + } +} + +static void loongarch_firmware_boot(LoongArchMachineState *lams) +{ + fw_cfg_add_kernel_info(lams->fw_cfg); +} + +static void loongarch_direct_kernel_boot(LoongArchMachineState *lams) +{ + MachineState *machine = MACHINE(lams); + int64_t kernel_addr = 0; + LoongArchCPU *lacpu; + int i; + + kernel_addr = load_kernel_info(); + if (!machine->firmware) { + for (i = 0; i < machine->smp.cpus; i++) { + lacpu = LOONGARCH_CPU(qemu_get_cpu(i)); + lacpu->env.load_elf = true; + lacpu->env.elf_address = kernel_addr; + } + } +} + +static void loongarch_init(MachineState *machine) +{ + LoongArchCPU *lacpu; + 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); + } + create_fdt(lams); + /* Init CPUs */ + for (i = 0; i < machine->smp.cpus; i++) { + cpu_create(machine->cpu_type); + } + fdt_add_cpu_nodes(lams); + /* 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; + memmap_add_entry(0, 256 * MiB, 1); + 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); + memmap_add_entry(0x90000000, highram_size, 1); + /* Add isa io region */ + memory_region_init_alias(&lams->isa_io, NULL, "isa-io", + get_system_io(), 0, VIRT_ISA_IO_SIZE); + memory_region_add_subregion(address_space_mem, VIRT_ISA_IO_BASE, + &lams->isa_io); + /* load the BIOS image. */ + loongarch_firmware_init(lams); + + /* fw_cfg init */ + lams->fw_cfg = loongarch_fw_cfg_init(ram_size, machine); + rom_set_fw(lams->fw_cfg); + if (lams->fw_cfg != NULL) { + fw_cfg_add_file(lams->fw_cfg, "etc/memmap", + memmap_table, + sizeof(struct memmap_entry) * (memmap_entries)); + } + fdt_add_fw_cfg_node(lams); + loaderparams.ram_size = ram_size; + loaderparams.kernel_filename = machine->kernel_filename; + loaderparams.kernel_cmdline = machine->kernel_cmdline; + loaderparams.initrd_filename = machine->initrd_filename; + /* load the kernel. */ + if (loaderparams.kernel_filename) { + if (lams->bios_loaded) { + loongarch_firmware_boot(lams); + } else { + loongarch_direct_kernel_boot(lams); + } + } + /* register reset function */ + for (i = 0; i < machine->smp.cpus; i++) { + lacpu = LOONGARCH_CPU(qemu_get_cpu(i)); + qemu_register_reset(reset_load_elf, lacpu); + } + /* Initialize the IO interrupt subsystem */ + loongarch_irq_init(lams); + lams->machine_done.notify = virt_machine_done; + qemu_add_machine_init_done_notifier(&lams->machine_done); + fdt_add_pcie_node(lams); + + /* load fdt */ + MemoryRegion *fdt_rom = g_new(MemoryRegion, 1); + memory_region_init_rom(fdt_rom, NULL, "fdt", VIRT_FDT_SIZE, &error_fatal); + memory_region_add_subregion(get_system_memory(), VIRT_FDT_BASE, fdt_rom); + rom_add_blob_fixed("fdt", machine->fdt, lams->fdt_size, VIRT_FDT_BASE); +} + +bool loongarch_is_acpi_enabled(LoongArchMachineState *lams) +{ + if (lams->acpi == ON_OFF_AUTO_OFF) { + return false; + } + return true; +} + +static void loongarch_get_acpi(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + LoongArchMachineState *lams = LOONGARCH_MACHINE(obj); + OnOffAuto acpi = lams->acpi; + + visit_type_OnOffAuto(v, name, &acpi, errp); +} + +static void loongarch_set_acpi(Object *obj, Visitor *v, const char *name, + void *opaque, Error **errp) +{ + LoongArchMachineState *lams = LOONGARCH_MACHINE(obj); + + visit_type_OnOffAuto(v, name, &lams->acpi, errp); +} + +static void loongarch_machine_initfn(Object *obj) +{ + LoongArchMachineState *lams = LOONGARCH_MACHINE(obj); + + lams->acpi = ON_OFF_AUTO_AUTO; + lams->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); + lams->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); +} + +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; + + object_class_property_add(oc, "acpi", "OnOffAuto", + loongarch_get_acpi, loongarch_set_acpi, + NULL, NULL); + object_class_property_set_description(oc, "acpi", + "Enable ACPI"); +} + +static const TypeInfo loongarch_machine_types[] = { + { + .name = TYPE_LOONGARCH_MACHINE, + .parent = TYPE_MACHINE, + .instance_size = sizeof(LoongArchMachineState), + .class_init = loongarch_class_init, + .instance_init = loongarch_machine_initfn, + } +}; + +DEFINE_TYPES(loongarch_machine_types) |