/* 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/kvm.h" #include "sysemu/tcg.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 #include "hw/core/sysbus-fdt.h" #include "hw/platform-bus.h" #include "hw/display/ramfb.h" #include "hw/mem/pc-dimm.h" #include "sysemu/tpm.h" #include "sysemu/block-backend.h" #include "hw/block/flash.h" #include "hw/virtio/virtio-iommu.h" #include "qemu/error-report.h" static bool virt_is_veiointc_enabled(LoongArchVirtMachineState *lvms) { if (lvms->veiointc == ON_OFF_AUTO_OFF) { return false; } return true; } static void virt_get_veiointc(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); OnOffAuto veiointc = lvms->veiointc; visit_type_OnOffAuto(v, name, &veiointc, errp); } static void virt_set_veiointc(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); visit_type_OnOffAuto(v, name, &lvms->veiointc, errp); } static PFlashCFI01 *virt_flash_create1(LoongArchVirtMachineState *lvms, const char *name, const char *alias_prop_name) { DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE); qdev_prop_set_uint8(dev, "width", 4); qdev_prop_set_uint8(dev, "device-width", 2); qdev_prop_set_bit(dev, "big-endian", false); qdev_prop_set_uint16(dev, "id0", 0x89); qdev_prop_set_uint16(dev, "id1", 0x18); qdev_prop_set_uint16(dev, "id2", 0x00); qdev_prop_set_uint16(dev, "id3", 0x00); qdev_prop_set_string(dev, "name", name); object_property_add_child(OBJECT(lvms), name, OBJECT(dev)); object_property_add_alias(OBJECT(lvms), alias_prop_name, OBJECT(dev), "drive"); return PFLASH_CFI01(dev); } static void virt_flash_create(LoongArchVirtMachineState *lvms) { lvms->flash[0] = virt_flash_create1(lvms, "virt.flash0", "pflash0"); lvms->flash[1] = virt_flash_create1(lvms, "virt.flash1", "pflash1"); } static void virt_flash_map1(PFlashCFI01 *flash, hwaddr base, hwaddr size, MemoryRegion *sysmem) { DeviceState *dev = DEVICE(flash); BlockBackend *blk; hwaddr real_size = size; blk = pflash_cfi01_get_blk(flash); if (blk) { real_size = blk_getlength(blk); assert(real_size && real_size <= size); } assert(QEMU_IS_ALIGNED(real_size, VIRT_FLASH_SECTOR_SIZE)); assert(real_size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); qdev_prop_set_uint32(dev, "num-blocks", real_size / VIRT_FLASH_SECTOR_SIZE); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); memory_region_add_subregion(sysmem, base, sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0)); } static void virt_flash_map(LoongArchVirtMachineState *lvms, MemoryRegion *sysmem) { PFlashCFI01 *flash0 = lvms->flash[0]; PFlashCFI01 *flash1 = lvms->flash[1]; virt_flash_map1(flash0, VIRT_FLASH0_BASE, VIRT_FLASH0_SIZE, sysmem); virt_flash_map1(flash1, VIRT_FLASH1_BASE, VIRT_FLASH1_SIZE, sysmem); } static void fdt_add_cpuic_node(LoongArchVirtMachineState *lvms, uint32_t *cpuintc_phandle) { MachineState *ms = MACHINE(lvms); char *nodename; *cpuintc_phandle = qemu_fdt_alloc_phandle(ms->fdt); nodename = g_strdup_printf("/cpuic"); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *cpuintc_phandle); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "loongson,cpu-interrupt-controller"); qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); g_free(nodename); } static void fdt_add_eiointc_node(LoongArchVirtMachineState *lvms, uint32_t *cpuintc_phandle, uint32_t *eiointc_phandle) { MachineState *ms = MACHINE(lvms); char *nodename; hwaddr extioi_base = APIC_BASE; hwaddr extioi_size = EXTIOI_SIZE; *eiointc_phandle = qemu_fdt_alloc_phandle(ms->fdt); nodename = g_strdup_printf("/eiointc@%" PRIx64, extioi_base); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *eiointc_phandle); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "loongson,ls2k2000-eiointc"); qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", *cpuintc_phandle); qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupts", 3); qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, extioi_base, 0x0, extioi_size); g_free(nodename); } static void fdt_add_pch_pic_node(LoongArchVirtMachineState *lvms, uint32_t *eiointc_phandle, uint32_t *pch_pic_phandle) { MachineState *ms = MACHINE(lvms); char *nodename; hwaddr pch_pic_base = VIRT_PCH_REG_BASE; hwaddr pch_pic_size = VIRT_PCH_REG_SIZE; *pch_pic_phandle = qemu_fdt_alloc_phandle(ms->fdt); nodename = g_strdup_printf("/platic@%" PRIx64, pch_pic_base); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *pch_pic_phandle); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "loongson,pch-pic-1.0"); qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0, pch_pic_base, 0, pch_pic_size); qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 2); qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", *eiointc_phandle); qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,pic-base-vec", 0); g_free(nodename); } static void fdt_add_pch_msi_node(LoongArchVirtMachineState *lvms, uint32_t *eiointc_phandle, uint32_t *pch_msi_phandle) { MachineState *ms = MACHINE(lvms); char *nodename; hwaddr pch_msi_base = VIRT_PCH_MSI_ADDR_LOW; hwaddr pch_msi_size = VIRT_PCH_MSI_SIZE; *pch_msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); nodename = g_strdup_printf("/msi@%" PRIx64, pch_msi_base); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *pch_msi_phandle); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "loongson,pch-msi-1.0"); qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0, pch_msi_base, 0, pch_msi_size); qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", *eiointc_phandle); qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,msi-base-vec", VIRT_PCH_PIC_IRQ_NUM); qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,msi-num-vecs", EXTIOI_IRQS - VIRT_PCH_PIC_IRQ_NUM); g_free(nodename); } static void fdt_add_flash_node(LoongArchVirtMachineState *lvms) { MachineState *ms = MACHINE(lvms); char *nodename; MemoryRegion *flash_mem; hwaddr flash0_base; hwaddr flash0_size; hwaddr flash1_base; hwaddr flash1_size; flash_mem = pflash_cfi01_get_memory(lvms->flash[0]); flash0_base = flash_mem->addr; flash0_size = memory_region_size(flash_mem); flash_mem = pflash_cfi01_get_memory(lvms->flash[1]); flash1_base = flash_mem->addr; flash1_size = memory_region_size(flash_mem); nodename = g_strdup_printf("/flash@%" PRIx64, flash0_base); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, flash0_base, 2, flash0_size, 2, flash1_base, 2, flash1_size); qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); g_free(nodename); } static void fdt_add_rtc_node(LoongArchVirtMachineState *lvms, uint32_t *pch_pic_phandle) { char *nodename; hwaddr base = VIRT_RTC_REG_BASE; hwaddr size = VIRT_RTC_LEN; MachineState *ms = MACHINE(lvms); nodename = g_strdup_printf("/rtc@%" PRIx64, base); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "loongson,ls7a-rtc"); qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", VIRT_RTC_IRQ - VIRT_GSI_BASE , 0x4); qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", *pch_pic_phandle); g_free(nodename); } static void fdt_add_uart_node(LoongArchVirtMachineState *lvms, uint32_t *pch_pic_phandle) { char *nodename; hwaddr base = VIRT_UART_BASE; hwaddr size = VIRT_UART_SIZE; MachineState *ms = MACHINE(lvms); nodename = g_strdup_printf("/serial@%" PRIx64, base); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "ns16550a"); qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, base, 0x0, size); qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 100000000); qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename); qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", VIRT_UART_IRQ - VIRT_GSI_BASE, 0x4); qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", *pch_pic_phandle); g_free(nodename); } static void create_fdt(LoongArchVirtMachineState *lvms) { MachineState *ms = MACHINE(lvms); ms->fdt = create_device_tree(&lvms->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); qemu_fdt_add_subnode(ms->fdt, "/chosen"); } static void fdt_add_cpu_nodes(const LoongArchVirtMachineState *lvms) { int num; const MachineState *ms = MACHINE(lvms); 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)); CPUState *cs = CPU(cpu); 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); if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) { qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", ms->possible_cpus->cpus[cs->cpu_index].props.node_id); } 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 LoongArchVirtMachineState *lvms) { char *nodename; hwaddr base = VIRT_FWCFG_BASE; const MachineState *ms = MACHINE(lvms); 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, 0x18); qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); g_free(nodename); } static void fdt_add_pcie_irq_map_node(const LoongArchVirtMachineState *lvms, char *nodename, uint32_t *pch_pic_phandle) { int pin, dev; uint32_t irq_map_stride = 0; uint32_t full_irq_map[GPEX_NUM_IRQS *GPEX_NUM_IRQS * 10] = {}; uint32_t *irq_map = full_irq_map; const MachineState *ms = MACHINE(lvms); /* This code creates a standard swizzle of interrupts such that * each device's first interrupt is based on it's PCI_SLOT number. * (See pci_swizzle_map_irq_fn()) * * We only need one entry per interrupt in the table (not one per * possible slot) seeing the interrupt-map-mask will allow the table * to wrap to any number of devices. */ for (dev = 0; dev < GPEX_NUM_IRQS; dev++) { int devfn = dev * 0x8; for (pin = 0; pin < GPEX_NUM_IRQS; pin++) { int irq_nr = 16 + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS); int i = 0; /* Fill PCI address cells */ irq_map[i] = cpu_to_be32(devfn << 8); i += 3; /* Fill PCI Interrupt cells */ irq_map[i] = cpu_to_be32(pin + 1); i += 1; /* Fill interrupt controller phandle and cells */ irq_map[i++] = cpu_to_be32(*pch_pic_phandle); irq_map[i++] = cpu_to_be32(irq_nr); if (!irq_map_stride) { irq_map_stride = i; } irq_map += irq_map_stride; } } qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map", full_irq_map, GPEX_NUM_IRQS * GPEX_NUM_IRQS * irq_map_stride * sizeof(uint32_t)); qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask", 0x1800, 0, 0, 0x7); } static void fdt_add_pcie_node(const LoongArchVirtMachineState *lvms, uint32_t *pch_pic_phandle, uint32_t *pch_msi_phandle) { 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(lvms); 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); qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-map", 0, *pch_msi_phandle, 0, 0x10000); fdt_add_pcie_irq_map_node(lvms, nodename, pch_pic_phandle); g_free(nodename); } static void fdt_add_memory_node(MachineState *ms, uint64_t base, uint64_t size, int node_id) { char *nodename = g_strdup_printf("/memory@%" PRIx64, base); qemu_fdt_add_subnode(ms->fdt, nodename); qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", base >> 32, base, size >> 32, size); qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory"); if (ms->numa_state && ms->numa_state->num_nodes) { qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", node_id); } g_free(nodename); } static void fdt_add_memory_nodes(MachineState *ms) { hwaddr base, size, ram_size, gap; int i, nb_numa_nodes, nodes; NodeInfo *numa_info; ram_size = ms->ram_size; base = VIRT_LOWMEM_BASE; gap = VIRT_LOWMEM_SIZE; nodes = nb_numa_nodes = ms->numa_state->num_nodes; numa_info = ms->numa_state->nodes; if (!nodes) { nodes = 1; } for (i = 0; i < nodes; i++) { if (nb_numa_nodes) { size = numa_info[i].node_mem; } else { size = ram_size; } /* * memory for the node splited into two part * lowram: [base, +gap) * highram: [VIRT_HIGHMEM_BASE, +(len - gap)) */ if (size >= gap) { fdt_add_memory_node(ms, base, gap, i); size -= gap; base = VIRT_HIGHMEM_BASE; gap = ram_size - VIRT_LOWMEM_SIZE; } if (size) { fdt_add_memory_node(ms, base, size, i); base += size; gap -= size; } } } static void virt_build_smbios(LoongArchVirtMachineState *lvms) { MachineState *ms = MACHINE(lvms); MachineClass *mc = MACHINE_GET_CLASS(lvms); uint8_t *smbios_tables, *smbios_anchor; size_t smbios_tables_len, smbios_anchor_len; const char *product = "QEMU Virtual Machine"; if (!lvms->fw_cfg) { return; } smbios_set_defaults("QEMU", product, mc->name); smbios_get_tables(ms, SMBIOS_ENTRY_POINT_TYPE_64, NULL, 0, &smbios_tables, &smbios_tables_len, &smbios_anchor, &smbios_anchor_len, &error_fatal); if (smbios_anchor) { fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-tables", smbios_tables, smbios_tables_len); fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-anchor", smbios_anchor, smbios_anchor_len); } } static void virt_done(Notifier *notifier, void *data) { LoongArchVirtMachineState *lvms = container_of(notifier, LoongArchVirtMachineState, machine_done); virt_build_smbios(lvms); loongarch_acpi_setup(lvms); } static void virt_powerdown_req(Notifier *notifier, void *opaque) { LoongArchVirtMachineState *s; s = container_of(notifier, LoongArchVirtMachineState, powerdown_notifier); acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS); } 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++; } static DeviceState *create_acpi_ged(DeviceState *pch_pic, LoongArchVirtMachineState *lvms) { DeviceState *dev; MachineState *ms = MACHINE(lvms); 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); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); /* 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 - VIRT_GSI_BASE)); return dev; } static DeviceState *create_platform_bus(DeviceState *pch_pic) { DeviceState *dev; SysBusDevice *sysbus; int i, irq; MemoryRegion *sysmem = get_system_memory(); dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS); qdev_prop_set_uint32(dev, "mmio_size", VIRT_PLATFORM_BUS_SIZE); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); sysbus = SYS_BUS_DEVICE(dev); for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) { irq = VIRT_PLATFORM_BUS_IRQ - VIRT_GSI_BASE + i; sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(pch_pic, irq)); } memory_region_add_subregion(sysmem, VIRT_PLATFORM_BUS_BASEADDRESS, sysbus_mmio_get_region(sysbus, 0)); return dev; } static void virt_devices_init(DeviceState *pch_pic, LoongArchVirtMachineState *lvms, uint32_t *pch_pic_phandle, uint32_t *pch_msi_phandle) { MachineClass *mc = MACHINE_GET_CLASS(lvms); DeviceState *gpex_dev; SysBusDevice *d; PCIBus *pci_bus; MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg; MemoryRegion *mmio_alias, *mmio_reg; 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; lvms->pci_bus = pci_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); } /* Add pcie node */ fdt_add_pcie_node(lvms, pch_pic_phandle, pch_msi_phandle); serial_mm_init(get_system_memory(), VIRT_UART_BASE, 0, qdev_get_gpio_in(pch_pic, VIRT_UART_IRQ - VIRT_GSI_BASE), 115200, serial_hd(0), DEVICE_LITTLE_ENDIAN); fdt_add_uart_node(lvms, pch_pic_phandle); /* Network init */ pci_init_nic_devices(pci_bus, mc->default_nic); /* * 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 - VIRT_GSI_BASE)); fdt_add_rtc_node(lvms, pch_pic_phandle); /* acpi ged */ lvms->acpi_ged = create_acpi_ged(pch_pic, lvms); /* platform bus */ lvms->platform_bus_dev = create_platform_bus(pch_pic); } static void virt_irq_init(LoongArchVirtMachineState *lvms) { MachineState *ms = MACHINE(lvms); DeviceState *pch_pic, *pch_msi, *cpudev; DeviceState *ipi, *extioi; SysBusDevice *d; LoongArchCPU *lacpu; CPULoongArchState *env; CPUState *cpu_state; int cpu, pin, i, start, num; uint32_t cpuintc_phandle, eiointc_phandle, pch_pic_phandle, pch_msi_phandle; /* * Extended IRQ model. * | * +-----------+ +-------------|--------+ +-----------+ * | IPI/Timer | --> | CPUINTC(0-3)|(4-255) | <-- | IPI/Timer | * +-----------+ +-------------|--------+ +-----------+ * ^ | * | * +---------+ * | EIOINTC | * +---------+ * ^ ^ * | | * +---------+ +---------+ * | PCH-PIC | | PCH-MSI | * +---------+ +---------+ * ^ ^ ^ * | | | * +--------+ +---------+ +---------+ * | UARTs | | Devices | | Devices | * +--------+ +---------+ +---------+ * * Virt extended IRQ model. * * +-----+ +---------------+ +-------+ * | IPI |--> | CPUINTC(0-255)| <-- | Timer | * +-----+ +---------------+ +-------+ * ^ * | * +-----------+ * | V-EIOINTC | * +-----------+ * ^ ^ * | | * +---------+ +---------+ * | PCH-PIC | | PCH-MSI | * +---------+ +---------+ * ^ ^ ^ * | | | * +--------+ +---------+ +---------+ * | UARTs | | Devices | | Devices | * +--------+ +---------+ +---------+ */ /* Create IPI device */ ipi = qdev_new(TYPE_LOONGARCH_IPI); qdev_prop_set_uint32(ipi, "num-cpu", ms->smp.cpus); sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal); /* IPI iocsr memory region */ memory_region_add_subregion(&lvms->system_iocsr, SMP_IPI_MAILBOX, sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 0)); memory_region_add_subregion(&lvms->system_iocsr, MAIL_SEND_ADDR, sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 1)); /* Add cpu interrupt-controller */ fdt_add_cpuic_node(lvms, &cpuintc_phandle); 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); env->address_space_iocsr = &lvms->as_iocsr; /* connect ipi irq to cpu irq */ qdev_connect_gpio_out(ipi, cpu, qdev_get_gpio_in(cpudev, IRQ_IPI)); env->ipistate = ipi; } /* Create EXTIOI device */ extioi = qdev_new(TYPE_LOONGARCH_EXTIOI); qdev_prop_set_uint32(extioi, "num-cpu", ms->smp.cpus); if (virt_is_veiointc_enabled(lvms)) { qdev_prop_set_bit(extioi, "has-virtualization-extension", true); } sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal); memory_region_add_subregion(&lvms->system_iocsr, APIC_BASE, sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 0)); if (virt_is_veiointc_enabled(lvms)) { memory_region_add_subregion(&lvms->system_iocsr, EXTIOI_VIRT_BASE, sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 1)); } /* * 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)); } } /* Add Extend I/O Interrupt Controller node */ fdt_add_eiointc_node(lvms, &cpuintc_phandle, &eiointc_phandle); pch_pic = qdev_new(TYPE_LOONGARCH_PCH_PIC); num = VIRT_PCH_PIC_IRQ_NUM; qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num); 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 pch_pic irqs to extioi */ for (i = 0; i < num; i++) { qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i)); } /* Add PCH PIC node */ fdt_add_pch_pic_node(lvms, &eiointc_phandle, &pch_pic_phandle); pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI); start = num; num = EXTIOI_IRQS - start; qdev_prop_set_uint32(pch_msi, "msi_irq_base", start); qdev_prop_set_uint32(pch_msi, "msi_irq_num", num); 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 < num; i++) { /* Connect pch_msi irqs to extioi */ qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i + start)); } /* Add PCH MSI node */ fdt_add_pch_msi_node(lvms, &eiointc_phandle, &pch_msi_phandle); virt_devices_init(pch_pic, lvms, &pch_pic_phandle, &pch_msi_phandle); } static void virt_firmware_init(LoongArchVirtMachineState *lvms) { char *filename = MACHINE(lvms)->firmware; char *bios_name = NULL; int bios_size, i; BlockBackend *pflash_blk0; MemoryRegion *mr; lvms->bios_loaded = false; /* Map legacy -drive if=pflash to machine properties */ for (i = 0; i < ARRAY_SIZE(lvms->flash); i++) { pflash_cfi01_legacy_drive(lvms->flash[i], drive_get(IF_PFLASH, 0, i)); } virt_flash_map(lvms, get_system_memory()); pflash_blk0 = pflash_cfi01_get_blk(lvms->flash[0]); if (pflash_blk0) { if (filename) { error_report("cannot use both '-bios' and '-drive if=pflash'" "options at once"); exit(1); } lvms->bios_loaded = true; return; } 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); } mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(lvms->flash[0]), 0); bios_size = load_image_mr(bios_name, mr); if (bios_size < 0) { error_report("Could not load ROM image '%s'", bios_name); exit(1); } g_free(bios_name); lvms->bios_loaded = true; } } static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr, uint64_t val, unsigned size, MemTxAttrs attrs) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque); uint64_t features; switch (addr) { case MISC_FUNC_REG: if (!virt_is_veiointc_enabled(lvms)) { return MEMTX_OK; } features = address_space_ldl(&lvms->as_iocsr, EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, attrs, NULL); if (val & BIT_ULL(IOCSRM_EXTIOI_EN)) { features |= BIT(EXTIOI_ENABLE); } if (val & BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE)) { features |= BIT(EXTIOI_ENABLE_INT_ENCODE); } address_space_stl(&lvms->as_iocsr, EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, features, attrs, NULL); break; default: g_assert_not_reached(); } return MEMTX_OK; } static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr, uint64_t *data, unsigned size, MemTxAttrs attrs) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque); uint64_t ret = 0; int features; switch (addr) { case VERSION_REG: ret = 0x11ULL; break; case FEATURE_REG: ret = BIT(IOCSRF_MSI) | BIT(IOCSRF_EXTIOI) | BIT(IOCSRF_CSRIPI); if (kvm_enabled()) { ret |= BIT(IOCSRF_VM); } break; case VENDOR_REG: ret = 0x6e6f73676e6f6f4cULL; /* "Loongson" */ break; case CPUNAME_REG: ret = 0x303030354133ULL; /* "3A5000" */ break; case MISC_FUNC_REG: if (!virt_is_veiointc_enabled(lvms)) { ret |= BIT_ULL(IOCSRM_EXTIOI_EN); break; } features = address_space_ldl(&lvms->as_iocsr, EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG, attrs, NULL); if (features & BIT(EXTIOI_ENABLE)) { ret |= BIT_ULL(IOCSRM_EXTIOI_EN); } if (features & BIT(EXTIOI_ENABLE_INT_ENCODE)) { ret |= BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE); } break; default: g_assert_not_reached(); } *data = ret; return MEMTX_OK; } static const MemoryRegionOps virt_iocsr_misc_ops = { .read_with_attrs = virt_iocsr_misc_read, .write_with_attrs = virt_iocsr_misc_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 4, .max_access_size = 8, }, .impl = { .min_access_size = 8, .max_access_size = 8, }, }; static void fw_cfg_add_memory(MachineState *ms) { hwaddr base, size, ram_size, gap; int nb_numa_nodes, nodes; NodeInfo *numa_info; ram_size = ms->ram_size; base = VIRT_LOWMEM_BASE; gap = VIRT_LOWMEM_SIZE; nodes = nb_numa_nodes = ms->numa_state->num_nodes; numa_info = ms->numa_state->nodes; if (!nodes) { nodes = 1; } /* add fw_cfg memory map of node0 */ if (nb_numa_nodes) { size = numa_info[0].node_mem; } else { size = ram_size; } if (size >= gap) { memmap_add_entry(base, gap, 1); size -= gap; base = VIRT_HIGHMEM_BASE; } if (size) { memmap_add_entry(base, size, 1); base += size; } if (nodes < 2) { return; } /* add fw_cfg memory map of other nodes */ if (numa_info[0].node_mem < gap && ram_size > gap) { /* * memory map for the maining nodes splited into two part * lowram: [base, +(gap - numa_info[0].node_mem)) * highram: [VIRT_HIGHMEM_BASE, +(ram_size - gap)) */ memmap_add_entry(base, gap - numa_info[0].node_mem, 1); size = ram_size - gap; base = VIRT_HIGHMEM_BASE; } else { size = ram_size - numa_info[0].node_mem; } if (size) memmap_add_entry(base, size, 1); } static void virt_init(MachineState *machine) { LoongArchCPU *lacpu; const char *cpu_model = machine->cpu_type; MemoryRegion *address_space_mem = get_system_memory(); LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(machine); int i; hwaddr base, size, ram_size = machine->ram_size; const CPUArchIdList *possible_cpus; MachineClass *mc = MACHINE_GET_CLASS(machine); CPUState *cpu; if (!cpu_model) { cpu_model = LOONGARCH_CPU_TYPE_NAME("la464"); } create_fdt(lvms); /* Create IOCSR space */ memory_region_init_io(&lvms->system_iocsr, OBJECT(machine), NULL, machine, "iocsr", UINT64_MAX); address_space_init(&lvms->as_iocsr, &lvms->system_iocsr, "IOCSR"); memory_region_init_io(&lvms->iocsr_mem, OBJECT(machine), &virt_iocsr_misc_ops, machine, "iocsr_misc", 0x428); memory_region_add_subregion(&lvms->system_iocsr, 0, &lvms->iocsr_mem); /* Init CPUs */ possible_cpus = mc->possible_cpu_arch_ids(machine); for (i = 0; i < possible_cpus->len; i++) { cpu = cpu_create(machine->cpu_type); cpu->cpu_index = i; machine->possible_cpus->cpus[i].cpu = cpu; lacpu = LOONGARCH_CPU(cpu); lacpu->phy_id = machine->possible_cpus->cpus[i].arch_id; } fdt_add_cpu_nodes(lvms); fdt_add_memory_nodes(machine); fw_cfg_add_memory(machine); /* Node0 memory */ size = ram_size; base = VIRT_LOWMEM_BASE; if (size > VIRT_LOWMEM_SIZE) { size = VIRT_LOWMEM_SIZE; } memory_region_init_alias(&lvms->lowmem, NULL, "loongarch.lowram", machine->ram, base, size); memory_region_add_subregion(address_space_mem, base, &lvms->lowmem); base += size; if (ram_size - size) { base = VIRT_HIGHMEM_BASE; memory_region_init_alias(&lvms->highmem, NULL, "loongarch.highram", machine->ram, VIRT_LOWMEM_BASE + size, ram_size - size); memory_region_add_subregion(address_space_mem, base, &lvms->highmem); base += ram_size - size; } /* initialize device memory address space */ if (machine->ram_size < machine->maxram_size) { ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size; if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) { error_report("unsupported amount of memory slots: %"PRIu64, machine->ram_slots); exit(EXIT_FAILURE); } if (QEMU_ALIGN_UP(machine->maxram_size, TARGET_PAGE_SIZE) != machine->maxram_size) { error_report("maximum memory size must by aligned to multiple of " "%d bytes", TARGET_PAGE_SIZE); exit(EXIT_FAILURE); } machine_memory_devices_init(machine, base, device_mem_size); } /* load the BIOS image. */ virt_firmware_init(lvms); /* fw_cfg init */ lvms->fw_cfg = virt_fw_cfg_init(ram_size, machine); rom_set_fw(lvms->fw_cfg); if (lvms->fw_cfg != NULL) { fw_cfg_add_file(lvms->fw_cfg, "etc/memmap", memmap_table, sizeof(struct memmap_entry) * (memmap_entries)); } fdt_add_fw_cfg_node(lvms); fdt_add_flash_node(lvms); /* Initialize the IO interrupt subsystem */ virt_irq_init(lvms); platform_bus_add_all_fdt_nodes(machine->fdt, "/platic", VIRT_PLATFORM_BUS_BASEADDRESS, VIRT_PLATFORM_BUS_SIZE, VIRT_PLATFORM_BUS_IRQ); lvms->machine_done.notify = virt_done; qemu_add_machine_init_done_notifier(&lvms->machine_done); /* connect powerdown request */ lvms->powerdown_notifier.notify = virt_powerdown_req; qemu_register_powerdown_notifier(&lvms->powerdown_notifier); /* * Since lowmem region starts from 0 and Linux kernel legacy start address * at 2 MiB, FDT base address is located at 1 MiB to avoid NULL pointer * access. FDT size limit with 1 MiB. * Put the FDT into the memory map as a ROM image: this will ensure * the FDT is copied again upon reset, even if addr points into RAM. */ qemu_fdt_dumpdtb(machine->fdt, lvms->fdt_size); rom_add_blob_fixed_as("fdt", machine->fdt, lvms->fdt_size, FDT_BASE, &address_space_memory); qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds, rom_ptr_for_as(&address_space_memory, FDT_BASE, lvms->fdt_size)); lvms->bootinfo.ram_size = ram_size; loongarch_load_kernel(machine, &lvms->bootinfo); } static void virt_get_acpi(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); OnOffAuto acpi = lvms->acpi; visit_type_OnOffAuto(v, name, &acpi, errp); } static void virt_set_acpi(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); visit_type_OnOffAuto(v, name, &lvms->acpi, errp); } static void virt_initfn(Object *obj) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj); if (tcg_enabled()) { lvms->veiointc = ON_OFF_AUTO_OFF; } lvms->acpi = ON_OFF_AUTO_AUTO; lvms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); lvms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); virt_flash_create(lvms); } static bool memhp_type_supported(DeviceState *dev) { /* we only support pc dimm now */ return object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && !object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); } static void virt_mem_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), errp); } static void virt_device_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { if (memhp_type_supported(dev)) { virt_mem_pre_plug(hotplug_dev, dev, errp); } } static void virt_mem_unplug_request(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); /* the acpi ged is always exist */ hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev, errp); } static void virt_device_unplug_request(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { if (memhp_type_supported(dev)) { virt_mem_unplug_request(hotplug_dev, dev, errp); } } static void virt_mem_unplug(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, errp); pc_dimm_unplug(PC_DIMM(dev), MACHINE(lvms)); qdev_unrealize(dev); } static void virt_device_unplug(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { if (memhp_type_supported(dev)) { virt_mem_unplug(hotplug_dev, dev, errp); } } static void virt_mem_plug(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); pc_dimm_plug(PC_DIMM(dev), MACHINE(lvms)); hotplug_handler_plug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &error_abort); } static void virt_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev); MachineClass *mc = MACHINE_GET_CLASS(lvms); PlatformBusDevice *pbus; if (device_is_dynamic_sysbus(mc, dev)) { if (lvms->platform_bus_dev) { pbus = PLATFORM_BUS_DEVICE(lvms->platform_bus_dev); platform_bus_link_device(pbus, SYS_BUS_DEVICE(dev)); } } else if (memhp_type_supported(dev)) { virt_mem_plug(hotplug_dev, dev, errp); } } static HotplugHandler *virt_get_hotplug_handler(MachineState *machine, DeviceState *dev) { MachineClass *mc = MACHINE_GET_CLASS(machine); if (device_is_dynamic_sysbus(mc, dev) || object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI) || memhp_type_supported(dev)) { return HOTPLUG_HANDLER(machine); } return NULL; } static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms) { int n; unsigned int max_cpus = ms->smp.max_cpus; if (ms->possible_cpus) { assert(ms->possible_cpus->len == max_cpus); return ms->possible_cpus; } ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + sizeof(CPUArchId) * max_cpus); ms->possible_cpus->len = max_cpus; for (n = 0; n < ms->possible_cpus->len; n++) { ms->possible_cpus->cpus[n].type = ms->cpu_type; ms->possible_cpus->cpus[n].arch_id = n; ms->possible_cpus->cpus[n].props.has_socket_id = true; ms->possible_cpus->cpus[n].props.socket_id = n / (ms->smp.cores * ms->smp.threads); ms->possible_cpus->cpus[n].props.has_core_id = true; ms->possible_cpus->cpus[n].props.core_id = n / ms->smp.threads % ms->smp.cores; ms->possible_cpus->cpus[n].props.has_thread_id = true; ms->possible_cpus->cpus[n].props.thread_id = n % ms->smp.threads; } return ms->possible_cpus; } static CpuInstanceProperties virt_cpu_index_to_props(MachineState *ms, unsigned cpu_index) { MachineClass *mc = MACHINE_GET_CLASS(ms); const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); assert(cpu_index < possible_cpus->len); return possible_cpus->cpus[cpu_index].props; } static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx) { int64_t socket_id; if (ms->numa_state->num_nodes) { socket_id = ms->possible_cpus->cpus[idx].props.socket_id; return socket_id % ms->numa_state->num_nodes; } else { return 0; } } static void virt_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); mc->init = virt_init; mc->default_cpu_type = LOONGARCH_CPU_TYPE_NAME("la464"); mc->default_ram_id = "loongarch.ram"; mc->desc = "QEMU LoongArch Virtual Machine"; mc->max_cpus = LOONGARCH_MAX_CPUS; 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; mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids; mc->cpu_index_to_instance_props = virt_cpu_index_to_props; mc->get_default_cpu_node_id = virt_get_default_cpu_node_id; mc->numa_mem_supported = true; mc->auto_enable_numa_with_memhp = true; mc->auto_enable_numa_with_memdev = true; mc->get_hotplug_handler = virt_get_hotplug_handler; mc->default_nic = "virtio-net-pci"; hc->plug = virt_device_plug_cb; hc->pre_plug = virt_device_pre_plug; hc->unplug_request = virt_device_unplug_request; hc->unplug = virt_device_unplug; object_class_property_add(oc, "acpi", "OnOffAuto", virt_get_acpi, virt_set_acpi, NULL, NULL); object_class_property_set_description(oc, "acpi", "Enable ACPI"); object_class_property_add(oc, "v-eiointc", "OnOffAuto", virt_get_veiointc, virt_set_veiointc, NULL, NULL); object_class_property_set_description(oc, "v-eiointc", "Enable Virt Extend I/O Interrupt Controller."); machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); #ifdef CONFIG_TPM machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); #endif } static const TypeInfo virt_machine_types[] = { { .name = TYPE_LOONGARCH_VIRT_MACHINE, .parent = TYPE_MACHINE, .instance_size = sizeof(LoongArchVirtMachineState), .class_init = virt_class_init, .instance_init = virt_initfn, .interfaces = (InterfaceInfo[]) { { TYPE_HOTPLUG_HANDLER }, { } }, } }; DEFINE_TYPES(virt_machine_types)