/* * QEMU RISC-V VirtIO Board * * Copyright (c) 2017 SiFive, Inc. * * RISC-V machine with 16550a UART and VirtIO MMIO * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2 or later, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see . */ #include "qemu/osdep.h" #include "qemu/units.h" #include "qemu/error-report.h" #include "qemu/guest-random.h" #include "qapi/error.h" #include "hw/boards.h" #include "hw/loader.h" #include "hw/sysbus.h" #include "hw/qdev-properties.h" #include "hw/char/serial.h" #include "target/riscv/cpu.h" #include "hw/core/sysbus-fdt.h" #include "target/riscv/pmu.h" #include "hw/riscv/riscv_hart.h" #include "hw/riscv/virt.h" #include "hw/riscv/boot.h" #include "hw/riscv/numa.h" #include "kvm_riscv.h" #include "hw/intc/riscv_aclint.h" #include "hw/intc/riscv_aplic.h" #include "hw/intc/riscv_imsic.h" #include "hw/intc/sifive_plic.h" #include "hw/misc/sifive_test.h" #include "hw/platform-bus.h" #include "chardev/char.h" #include "sysemu/device_tree.h" #include "sysemu/sysemu.h" #include "sysemu/tcg.h" #include "sysemu/kvm.h" #include "sysemu/tpm.h" #include "hw/pci/pci.h" #include "hw/pci-host/gpex.h" #include "hw/display/ramfb.h" #include "hw/acpi/aml-build.h" #include "qapi/qapi-visit-common.h" /* * The virt machine physical address space used by some of the devices * namely ACLINT, PLIC, APLIC, and IMSIC depend on number of Sockets, * number of CPUs, and number of IMSIC guest files. * * Various limits defined by VIRT_SOCKETS_MAX_BITS, VIRT_CPUS_MAX_BITS, * and VIRT_IRQCHIP_MAX_GUESTS_BITS are tuned for maximum utilization * of virt machine physical address space. */ #define VIRT_IMSIC_GROUP_MAX_SIZE (1U << IMSIC_MMIO_GROUP_MIN_SHIFT) #if VIRT_IMSIC_GROUP_MAX_SIZE < \ IMSIC_GROUP_SIZE(VIRT_CPUS_MAX_BITS, VIRT_IRQCHIP_MAX_GUESTS_BITS) #error "Can't accommodate single IMSIC group in address space" #endif #define VIRT_IMSIC_MAX_SIZE (VIRT_SOCKETS_MAX * \ VIRT_IMSIC_GROUP_MAX_SIZE) #if 0x4000000 < VIRT_IMSIC_MAX_SIZE #error "Can't accommodate all IMSIC groups in address space" #endif /* KVM AIA only supports APLIC MSI. APLIC Wired is always emulated by QEMU. */ static bool virt_use_kvm_aia(RISCVVirtState *s) { return kvm_irqchip_in_kernel() && s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; } static const MemMapEntry virt_memmap[] = { [VIRT_DEBUG] = { 0x0, 0x100 }, [VIRT_MROM] = { 0x1000, 0xf000 }, [VIRT_TEST] = { 0x100000, 0x1000 }, [VIRT_RTC] = { 0x101000, 0x1000 }, [VIRT_CLINT] = { 0x2000000, 0x10000 }, [VIRT_ACLINT_SSWI] = { 0x2F00000, 0x4000 }, [VIRT_PCIE_PIO] = { 0x3000000, 0x10000 }, [VIRT_PLATFORM_BUS] = { 0x4000000, 0x2000000 }, [VIRT_PLIC] = { 0xc000000, VIRT_PLIC_SIZE(VIRT_CPUS_MAX * 2) }, [VIRT_APLIC_M] = { 0xc000000, APLIC_SIZE(VIRT_CPUS_MAX) }, [VIRT_APLIC_S] = { 0xd000000, APLIC_SIZE(VIRT_CPUS_MAX) }, [VIRT_UART0] = { 0x10000000, 0x100 }, [VIRT_VIRTIO] = { 0x10001000, 0x1000 }, [VIRT_FW_CFG] = { 0x10100000, 0x18 }, [VIRT_FLASH] = { 0x20000000, 0x4000000 }, [VIRT_IMSIC_M] = { 0x24000000, VIRT_IMSIC_MAX_SIZE }, [VIRT_IMSIC_S] = { 0x28000000, VIRT_IMSIC_MAX_SIZE }, [VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 }, [VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 }, [VIRT_DRAM] = { 0x80000000, 0x0 }, }; /* PCIe high mmio is fixed for RV32 */ #define VIRT32_HIGH_PCIE_MMIO_BASE 0x300000000ULL #define VIRT32_HIGH_PCIE_MMIO_SIZE (4 * GiB) /* PCIe high mmio for RV64, size is fixed but base depends on top of RAM */ #define VIRT64_HIGH_PCIE_MMIO_SIZE (16 * GiB) static MemMapEntry virt_high_pcie_memmap; #define VIRT_FLASH_SECTOR_SIZE (256 * KiB) static PFlashCFI01 *virt_flash_create1(RISCVVirtState *s, const char *name, const char *alias_prop_name) { /* * Create a single flash device. We use the same parameters as * the flash devices on the ARM virt board. */ 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(s), name, OBJECT(dev)); object_property_add_alias(OBJECT(s), alias_prop_name, OBJECT(dev), "drive"); return PFLASH_CFI01(dev); } static void virt_flash_create(RISCVVirtState *s) { s->flash[0] = virt_flash_create1(s, "virt.flash0", "pflash0"); s->flash[1] = virt_flash_create1(s, "virt.flash1", "pflash1"); } static void virt_flash_map1(PFlashCFI01 *flash, hwaddr base, hwaddr size, MemoryRegion *sysmem) { DeviceState *dev = DEVICE(flash); assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE)); assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); qdev_prop_set_uint32(dev, "num-blocks", 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(RISCVVirtState *s, MemoryRegion *sysmem) { hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2; hwaddr flashbase = virt_memmap[VIRT_FLASH].base; virt_flash_map1(s->flash[0], flashbase, flashsize, sysmem); virt_flash_map1(s->flash[1], flashbase + flashsize, flashsize, sysmem); } static void create_pcie_irq_map(RISCVVirtState *s, void *fdt, char *nodename, uint32_t irqchip_phandle) { int pin, dev; uint32_t irq_map_stride = 0; uint32_t full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * FDT_MAX_INT_MAP_WIDTH] = {}; uint32_t *irq_map = full_irq_map; /* 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 = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS); int i = 0; /* Fill PCI address cells */ irq_map[i] = cpu_to_be32(devfn << 8); i += FDT_PCI_ADDR_CELLS; /* Fill PCI Interrupt cells */ irq_map[i] = cpu_to_be32(pin + 1); i += FDT_PCI_INT_CELLS; /* Fill interrupt controller phandle and cells */ irq_map[i++] = cpu_to_be32(irqchip_phandle); irq_map[i++] = cpu_to_be32(irq_nr); if (s->aia_type != VIRT_AIA_TYPE_NONE) { irq_map[i++] = cpu_to_be32(0x4); } if (!irq_map_stride) { irq_map_stride = i; } irq_map += irq_map_stride; } } qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map, GPEX_NUM_IRQS * GPEX_NUM_IRQS * irq_map_stride * sizeof(uint32_t)); qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask", 0x1800, 0, 0, 0x7); } static void create_fdt_socket_cpus(RISCVVirtState *s, int socket, char *clust_name, uint32_t *phandle, uint32_t *intc_phandles) { int cpu; uint32_t cpu_phandle; MachineState *ms = MACHINE(s); char *name, *cpu_name, *core_name, *intc_name, *sv_name; bool is_32_bit = riscv_is_32bit(&s->soc[0]); uint8_t satp_mode_max; for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) { RISCVCPU *cpu_ptr = &s->soc[socket].harts[cpu]; cpu_phandle = (*phandle)++; cpu_name = g_strdup_printf("/cpus/cpu@%d", s->soc[socket].hartid_base + cpu); qemu_fdt_add_subnode(ms->fdt, cpu_name); if (cpu_ptr->cfg.satp_mode.supported != 0) { satp_mode_max = satp_mode_max_from_map(cpu_ptr->cfg.satp_mode.map); sv_name = g_strdup_printf("riscv,%s", satp_mode_str(satp_mode_max, is_32_bit)); qemu_fdt_setprop_string(ms->fdt, cpu_name, "mmu-type", sv_name); g_free(sv_name); } name = riscv_isa_string(cpu_ptr); qemu_fdt_setprop_string(ms->fdt, cpu_name, "riscv,isa", name); g_free(name); if (cpu_ptr->cfg.ext_icbom) { qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbom-block-size", cpu_ptr->cfg.cbom_blocksize); } if (cpu_ptr->cfg.ext_icboz) { qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cboz-block-size", cpu_ptr->cfg.cboz_blocksize); } qemu_fdt_setprop_string(ms->fdt, cpu_name, "compatible", "riscv"); qemu_fdt_setprop_string(ms->fdt, cpu_name, "status", "okay"); qemu_fdt_setprop_cell(ms->fdt, cpu_name, "reg", s->soc[socket].hartid_base + cpu); qemu_fdt_setprop_string(ms->fdt, cpu_name, "device_type", "cpu"); riscv_socket_fdt_write_id(ms, cpu_name, socket); qemu_fdt_setprop_cell(ms->fdt, cpu_name, "phandle", cpu_phandle); intc_phandles[cpu] = (*phandle)++; intc_name = g_strdup_printf("%s/interrupt-controller", cpu_name); qemu_fdt_add_subnode(ms->fdt, intc_name); qemu_fdt_setprop_cell(ms->fdt, intc_name, "phandle", intc_phandles[cpu]); qemu_fdt_setprop_string(ms->fdt, intc_name, "compatible", "riscv,cpu-intc"); qemu_fdt_setprop(ms->fdt, intc_name, "interrupt-controller", NULL, 0); qemu_fdt_setprop_cell(ms->fdt, intc_name, "#interrupt-cells", 1); core_name = g_strdup_printf("%s/core%d", clust_name, cpu); qemu_fdt_add_subnode(ms->fdt, core_name); qemu_fdt_setprop_cell(ms->fdt, core_name, "cpu", cpu_phandle); g_free(core_name); g_free(intc_name); g_free(cpu_name); } } static void create_fdt_socket_memory(RISCVVirtState *s, const MemMapEntry *memmap, int socket) { char *mem_name; uint64_t addr, size; MachineState *ms = MACHINE(s); addr = memmap[VIRT_DRAM].base + riscv_socket_mem_offset(ms, socket); size = riscv_socket_mem_size(ms, socket); mem_name = g_strdup_printf("/memory@%lx", (long)addr); qemu_fdt_add_subnode(ms->fdt, mem_name); qemu_fdt_setprop_cells(ms->fdt, mem_name, "reg", addr >> 32, addr, size >> 32, size); qemu_fdt_setprop_string(ms->fdt, mem_name, "device_type", "memory"); riscv_socket_fdt_write_id(ms, mem_name, socket); g_free(mem_name); } static void create_fdt_socket_clint(RISCVVirtState *s, const MemMapEntry *memmap, int socket, uint32_t *intc_phandles) { int cpu; char *clint_name; uint32_t *clint_cells; unsigned long clint_addr; MachineState *ms = MACHINE(s); static const char * const clint_compat[2] = { "sifive,clint0", "riscv,clint0" }; clint_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { clint_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandles[cpu]); clint_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT); clint_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandles[cpu]); clint_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER); } clint_addr = memmap[VIRT_CLINT].base + (memmap[VIRT_CLINT].size * socket); clint_name = g_strdup_printf("/soc/clint@%lx", clint_addr); qemu_fdt_add_subnode(ms->fdt, clint_name); qemu_fdt_setprop_string_array(ms->fdt, clint_name, "compatible", (char **)&clint_compat, ARRAY_SIZE(clint_compat)); qemu_fdt_setprop_cells(ms->fdt, clint_name, "reg", 0x0, clint_addr, 0x0, memmap[VIRT_CLINT].size); qemu_fdt_setprop(ms->fdt, clint_name, "interrupts-extended", clint_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4); riscv_socket_fdt_write_id(ms, clint_name, socket); g_free(clint_name); g_free(clint_cells); } static void create_fdt_socket_aclint(RISCVVirtState *s, const MemMapEntry *memmap, int socket, uint32_t *intc_phandles) { int cpu; char *name; unsigned long addr, size; uint32_t aclint_cells_size; uint32_t *aclint_mswi_cells; uint32_t *aclint_sswi_cells; uint32_t *aclint_mtimer_cells; MachineState *ms = MACHINE(s); aclint_mswi_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); aclint_mtimer_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); aclint_sswi_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { aclint_mswi_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); aclint_mswi_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_SOFT); aclint_mtimer_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); aclint_mtimer_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_TIMER); aclint_sswi_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); aclint_sswi_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_SOFT); } aclint_cells_size = s->soc[socket].num_harts * sizeof(uint32_t) * 2; if (s->aia_type != VIRT_AIA_TYPE_APLIC_IMSIC) { addr = memmap[VIRT_CLINT].base + (memmap[VIRT_CLINT].size * socket); name = g_strdup_printf("/soc/mswi@%lx", addr); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "riscv,aclint-mswi"); qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, addr, 0x0, RISCV_ACLINT_SWI_SIZE); qemu_fdt_setprop(ms->fdt, name, "interrupts-extended", aclint_mswi_cells, aclint_cells_size); qemu_fdt_setprop(ms->fdt, name, "interrupt-controller", NULL, 0); qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", 0); riscv_socket_fdt_write_id(ms, name, socket); g_free(name); } if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { addr = memmap[VIRT_CLINT].base + (RISCV_ACLINT_DEFAULT_MTIMER_SIZE * socket); size = RISCV_ACLINT_DEFAULT_MTIMER_SIZE; } else { addr = memmap[VIRT_CLINT].base + RISCV_ACLINT_SWI_SIZE + (memmap[VIRT_CLINT].size * socket); size = memmap[VIRT_CLINT].size - RISCV_ACLINT_SWI_SIZE; } name = g_strdup_printf("/soc/mtimer@%lx", addr); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "riscv,aclint-mtimer"); qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, addr + RISCV_ACLINT_DEFAULT_MTIME, 0x0, size - RISCV_ACLINT_DEFAULT_MTIME, 0x0, addr + RISCV_ACLINT_DEFAULT_MTIMECMP, 0x0, RISCV_ACLINT_DEFAULT_MTIME); qemu_fdt_setprop(ms->fdt, name, "interrupts-extended", aclint_mtimer_cells, aclint_cells_size); riscv_socket_fdt_write_id(ms, name, socket); g_free(name); if (s->aia_type != VIRT_AIA_TYPE_APLIC_IMSIC) { addr = memmap[VIRT_ACLINT_SSWI].base + (memmap[VIRT_ACLINT_SSWI].size * socket); name = g_strdup_printf("/soc/sswi@%lx", addr); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "riscv,aclint-sswi"); qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, addr, 0x0, memmap[VIRT_ACLINT_SSWI].size); qemu_fdt_setprop(ms->fdt, name, "interrupts-extended", aclint_sswi_cells, aclint_cells_size); qemu_fdt_setprop(ms->fdt, name, "interrupt-controller", NULL, 0); qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", 0); riscv_socket_fdt_write_id(ms, name, socket); g_free(name); } g_free(aclint_mswi_cells); g_free(aclint_mtimer_cells); g_free(aclint_sswi_cells); } static void create_fdt_socket_plic(RISCVVirtState *s, const MemMapEntry *memmap, int socket, uint32_t *phandle, uint32_t *intc_phandles, uint32_t *plic_phandles) { int cpu; char *plic_name; uint32_t *plic_cells; unsigned long plic_addr; MachineState *ms = MACHINE(s); static const char * const plic_compat[2] = { "sifive,plic-1.0.0", "riscv,plic0" }; if (kvm_enabled()) { plic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); } else { plic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); } for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { if (kvm_enabled()) { plic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); plic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_EXT); } else { plic_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandles[cpu]); plic_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_EXT); plic_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandles[cpu]); plic_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_S_EXT); } } plic_phandles[socket] = (*phandle)++; plic_addr = memmap[VIRT_PLIC].base + (memmap[VIRT_PLIC].size * socket); plic_name = g_strdup_printf("/soc/plic@%lx", plic_addr); qemu_fdt_add_subnode(ms->fdt, plic_name); qemu_fdt_setprop_cell(ms->fdt, plic_name, "#interrupt-cells", FDT_PLIC_INT_CELLS); qemu_fdt_setprop_cell(ms->fdt, plic_name, "#address-cells", FDT_PLIC_ADDR_CELLS); qemu_fdt_setprop_string_array(ms->fdt, plic_name, "compatible", (char **)&plic_compat, ARRAY_SIZE(plic_compat)); qemu_fdt_setprop(ms->fdt, plic_name, "interrupt-controller", NULL, 0); qemu_fdt_setprop(ms->fdt, plic_name, "interrupts-extended", plic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4); qemu_fdt_setprop_cells(ms->fdt, plic_name, "reg", 0x0, plic_addr, 0x0, memmap[VIRT_PLIC].size); qemu_fdt_setprop_cell(ms->fdt, plic_name, "riscv,ndev", VIRT_IRQCHIP_NUM_SOURCES - 1); riscv_socket_fdt_write_id(ms, plic_name, socket); qemu_fdt_setprop_cell(ms->fdt, plic_name, "phandle", plic_phandles[socket]); if (!socket) { platform_bus_add_all_fdt_nodes(ms->fdt, plic_name, memmap[VIRT_PLATFORM_BUS].base, memmap[VIRT_PLATFORM_BUS].size, VIRT_PLATFORM_BUS_IRQ); } g_free(plic_name); g_free(plic_cells); } static uint32_t imsic_num_bits(uint32_t count) { uint32_t ret = 0; while (BIT(ret) < count) { ret++; } return ret; } static void create_fdt_one_imsic(RISCVVirtState *s, hwaddr base_addr, uint32_t *intc_phandles, uint32_t msi_phandle, bool m_mode, uint32_t imsic_guest_bits) { int cpu, socket; char *imsic_name; MachineState *ms = MACHINE(s); int socket_count = riscv_socket_count(ms); uint32_t imsic_max_hart_per_socket; uint32_t *imsic_cells, *imsic_regs, imsic_addr, imsic_size; imsic_cells = g_new0(uint32_t, ms->smp.cpus * 2); imsic_regs = g_new0(uint32_t, socket_count * 4); for (cpu = 0; cpu < ms->smp.cpus; cpu++) { imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); imsic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); } imsic_max_hart_per_socket = 0; for (socket = 0; socket < socket_count; socket++) { imsic_addr = base_addr + socket * VIRT_IMSIC_GROUP_MAX_SIZE; imsic_size = IMSIC_HART_SIZE(imsic_guest_bits) * s->soc[socket].num_harts; imsic_regs[socket * 4 + 0] = 0; imsic_regs[socket * 4 + 1] = cpu_to_be32(imsic_addr); imsic_regs[socket * 4 + 2] = 0; imsic_regs[socket * 4 + 3] = cpu_to_be32(imsic_size); if (imsic_max_hart_per_socket < s->soc[socket].num_harts) { imsic_max_hart_per_socket = s->soc[socket].num_harts; } } imsic_name = g_strdup_printf("/soc/imsics@%lx", (unsigned long)base_addr); qemu_fdt_add_subnode(ms->fdt, imsic_name); qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", "riscv,imsics"); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", FDT_IMSIC_INT_CELLS); qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", NULL, 0); qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", NULL, 0); qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, socket_count * sizeof(uint32_t) * 4); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", VIRT_IRQCHIP_NUM_MSIS); if (imsic_guest_bits) { qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,guest-index-bits", imsic_guest_bits); } if (socket_count > 1) { qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", imsic_num_bits(imsic_max_hart_per_socket)); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", imsic_num_bits(socket_count)); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", IMSIC_MMIO_GROUP_MIN_SHIFT); } qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", msi_phandle); g_free(imsic_name); g_free(imsic_regs); g_free(imsic_cells); } static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t *phandle, uint32_t *intc_phandles, uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) { *msi_m_phandle = (*phandle)++; *msi_s_phandle = (*phandle)++; if (!kvm_enabled()) { /* M-level IMSIC node */ create_fdt_one_imsic(s, memmap[VIRT_IMSIC_M].base, intc_phandles, *msi_m_phandle, true, 0); } /* S-level IMSIC node */ create_fdt_one_imsic(s, memmap[VIRT_IMSIC_S].base, intc_phandles, *msi_s_phandle, false, imsic_num_bits(s->aia_guests + 1)); } static void create_fdt_one_aplic(RISCVVirtState *s, int socket, unsigned long aplic_addr, uint32_t aplic_size, uint32_t msi_phandle, uint32_t *intc_phandles, uint32_t aplic_phandle, uint32_t aplic_child_phandle, bool m_mode, int num_harts) { int cpu; char *aplic_name; uint32_t *aplic_cells; MachineState *ms = MACHINE(s); aplic_cells = g_new0(uint32_t, num_harts * 2); for (cpu = 0; cpu < num_harts; cpu++) { aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); aplic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); } aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); qemu_fdt_add_subnode(ms->fdt, aplic_name); qemu_fdt_setprop_string(ms->fdt, aplic_name, "compatible", "riscv,aplic"); qemu_fdt_setprop_cell(ms->fdt, aplic_name, "#interrupt-cells", FDT_APLIC_INT_CELLS); qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); if (s->aia_type == VIRT_AIA_TYPE_APLIC) { qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", aplic_cells, num_harts * sizeof(uint32_t) * 2); } else { qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", msi_phandle); } qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", 0x0, aplic_addr, 0x0, aplic_size); qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", VIRT_IRQCHIP_NUM_SOURCES); if (aplic_child_phandle) { qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", aplic_child_phandle); qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegate", aplic_child_phandle, 0x1, VIRT_IRQCHIP_NUM_SOURCES); } riscv_socket_fdt_write_id(ms, aplic_name, socket); qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_phandle); g_free(aplic_name); g_free(aplic_cells); } static void create_fdt_socket_aplic(RISCVVirtState *s, const MemMapEntry *memmap, int socket, uint32_t msi_m_phandle, uint32_t msi_s_phandle, uint32_t *phandle, uint32_t *intc_phandles, uint32_t *aplic_phandles, int num_harts) { char *aplic_name; unsigned long aplic_addr; MachineState *ms = MACHINE(s); uint32_t aplic_m_phandle, aplic_s_phandle; aplic_m_phandle = (*phandle)++; aplic_s_phandle = (*phandle)++; if (!kvm_enabled()) { /* M-level APLIC node */ aplic_addr = memmap[VIRT_APLIC_M].base + (memmap[VIRT_APLIC_M].size * socket); create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_M].size, msi_m_phandle, intc_phandles, aplic_m_phandle, aplic_s_phandle, true, num_harts); } /* S-level APLIC node */ aplic_addr = memmap[VIRT_APLIC_S].base + (memmap[VIRT_APLIC_S].size * socket); create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_S].size, msi_s_phandle, intc_phandles, aplic_s_phandle, 0, false, num_harts); aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); if (!socket) { platform_bus_add_all_fdt_nodes(ms->fdt, aplic_name, memmap[VIRT_PLATFORM_BUS].base, memmap[VIRT_PLATFORM_BUS].size, VIRT_PLATFORM_BUS_IRQ); } g_free(aplic_name); aplic_phandles[socket] = aplic_s_phandle; } static void create_fdt_pmu(RISCVVirtState *s) { char *pmu_name; MachineState *ms = MACHINE(s); RISCVCPU hart = s->soc[0].harts[0]; pmu_name = g_strdup_printf("/pmu"); qemu_fdt_add_subnode(ms->fdt, pmu_name); qemu_fdt_setprop_string(ms->fdt, pmu_name, "compatible", "riscv,pmu"); riscv_pmu_generate_fdt_node(ms->fdt, hart.cfg.pmu_num, pmu_name); g_free(pmu_name); } static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t *phandle, uint32_t *irq_mmio_phandle, uint32_t *irq_pcie_phandle, uint32_t *irq_virtio_phandle, uint32_t *msi_pcie_phandle) { char *clust_name; int socket, phandle_pos; MachineState *ms = MACHINE(s); uint32_t msi_m_phandle = 0, msi_s_phandle = 0; uint32_t *intc_phandles, xplic_phandles[MAX_NODES]; int socket_count = riscv_socket_count(ms); qemu_fdt_add_subnode(ms->fdt, "/cpus"); qemu_fdt_setprop_cell(ms->fdt, "/cpus", "timebase-frequency", RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ); qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); intc_phandles = g_new0(uint32_t, ms->smp.cpus); phandle_pos = ms->smp.cpus; for (socket = (socket_count - 1); socket >= 0; socket--) { phandle_pos -= s->soc[socket].num_harts; clust_name = g_strdup_printf("/cpus/cpu-map/cluster%d", socket); qemu_fdt_add_subnode(ms->fdt, clust_name); create_fdt_socket_cpus(s, socket, clust_name, phandle, &intc_phandles[phandle_pos]); create_fdt_socket_memory(s, memmap, socket); g_free(clust_name); if (tcg_enabled()) { if (s->have_aclint) { create_fdt_socket_aclint(s, memmap, socket, &intc_phandles[phandle_pos]); } else { create_fdt_socket_clint(s, memmap, socket, &intc_phandles[phandle_pos]); } } } if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { create_fdt_imsic(s, memmap, phandle, intc_phandles, &msi_m_phandle, &msi_s_phandle); *msi_pcie_phandle = msi_s_phandle; } /* KVM AIA only has one APLIC instance */ if (virt_use_kvm_aia(s)) { create_fdt_socket_aplic(s, memmap, 0, msi_m_phandle, msi_s_phandle, phandle, &intc_phandles[0], xplic_phandles, ms->smp.cpus); } else { phandle_pos = ms->smp.cpus; for (socket = (socket_count - 1); socket >= 0; socket--) { phandle_pos -= s->soc[socket].num_harts; if (s->aia_type == VIRT_AIA_TYPE_NONE) { create_fdt_socket_plic(s, memmap, socket, phandle, &intc_phandles[phandle_pos], xplic_phandles); } else { create_fdt_socket_aplic(s, memmap, socket, msi_m_phandle, msi_s_phandle, phandle, &intc_phandles[phandle_pos], xplic_phandles, s->soc[socket].num_harts); } } } g_free(intc_phandles); if (virt_use_kvm_aia(s)) { *irq_mmio_phandle = xplic_phandles[0]; *irq_virtio_phandle = xplic_phandles[0]; *irq_pcie_phandle = xplic_phandles[0]; } else { for (socket = 0; socket < socket_count; socket++) { if (socket == 0) { *irq_mmio_phandle = xplic_phandles[socket]; *irq_virtio_phandle = xplic_phandles[socket]; *irq_pcie_phandle = xplic_phandles[socket]; } if (socket == 1) { *irq_virtio_phandle = xplic_phandles[socket]; *irq_pcie_phandle = xplic_phandles[socket]; } if (socket == 2) { *irq_pcie_phandle = xplic_phandles[socket]; } } } riscv_socket_fdt_write_distance_matrix(ms); } static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t irq_virtio_phandle) { int i; char *name; MachineState *ms = MACHINE(s); for (i = 0; i < VIRTIO_COUNT; i++) { name = g_strdup_printf("/soc/virtio_mmio@%lx", (long)(memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size)); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "virtio,mmio"); qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 0x0, memmap[VIRT_VIRTIO].size); qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_virtio_phandle); if (s->aia_type == VIRT_AIA_TYPE_NONE) { qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", VIRTIO_IRQ + i); } else { qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", VIRTIO_IRQ + i, 0x4); } g_free(name); } } static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t irq_pcie_phandle, uint32_t msi_pcie_phandle) { char *name; MachineState *ms = MACHINE(s); name = g_strdup_printf("/soc/pci@%lx", (long) memmap[VIRT_PCIE_ECAM].base); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_cell(ms->fdt, name, "#address-cells", FDT_PCI_ADDR_CELLS); qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", FDT_PCI_INT_CELLS); qemu_fdt_setprop_cell(ms->fdt, name, "#size-cells", 0x2); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "pci-host-ecam-generic"); qemu_fdt_setprop_string(ms->fdt, name, "device_type", "pci"); qemu_fdt_setprop_cell(ms->fdt, name, "linux,pci-domain", 0); qemu_fdt_setprop_cells(ms->fdt, name, "bus-range", 0, memmap[VIRT_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN - 1); qemu_fdt_setprop(ms->fdt, name, "dma-coherent", NULL, 0); if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { qemu_fdt_setprop_cell(ms->fdt, name, "msi-parent", msi_pcie_phandle); } qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0, memmap[VIRT_PCIE_ECAM].base, 0, memmap[VIRT_PCIE_ECAM].size); qemu_fdt_setprop_sized_cells(ms->fdt, name, "ranges", 1, FDT_PCI_RANGE_IOPORT, 2, 0, 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size, 1, FDT_PCI_RANGE_MMIO, 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size, 1, FDT_PCI_RANGE_MMIO_64BIT, 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.size); create_pcie_irq_map(s, ms->fdt, name, irq_pcie_phandle); g_free(name); } static void create_fdt_reset(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t *phandle) { char *name; uint32_t test_phandle; MachineState *ms = MACHINE(s); test_phandle = (*phandle)++; name = g_strdup_printf("/soc/test@%lx", (long)memmap[VIRT_TEST].base); qemu_fdt_add_subnode(ms->fdt, name); { static const char * const compat[3] = { "sifive,test1", "sifive,test0", "syscon" }; qemu_fdt_setprop_string_array(ms->fdt, name, "compatible", (char **)&compat, ARRAY_SIZE(compat)); } qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_TEST].base, 0x0, memmap[VIRT_TEST].size); qemu_fdt_setprop_cell(ms->fdt, name, "phandle", test_phandle); test_phandle = qemu_fdt_get_phandle(ms->fdt, name); g_free(name); name = g_strdup_printf("/reboot"); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-reboot"); qemu_fdt_setprop_cell(ms->fdt, name, "regmap", test_phandle); qemu_fdt_setprop_cell(ms->fdt, name, "offset", 0x0); qemu_fdt_setprop_cell(ms->fdt, name, "value", FINISHER_RESET); g_free(name); name = g_strdup_printf("/poweroff"); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-poweroff"); qemu_fdt_setprop_cell(ms->fdt, name, "regmap", test_phandle); qemu_fdt_setprop_cell(ms->fdt, name, "offset", 0x0); qemu_fdt_setprop_cell(ms->fdt, name, "value", FINISHER_PASS); g_free(name); } static void create_fdt_uart(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t irq_mmio_phandle) { char *name; MachineState *ms = MACHINE(s); name = g_strdup_printf("/soc/serial@%lx", (long)memmap[VIRT_UART0].base); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "ns16550a"); qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_UART0].base, 0x0, memmap[VIRT_UART0].size); qemu_fdt_setprop_cell(ms->fdt, name, "clock-frequency", 3686400); qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_mmio_phandle); if (s->aia_type == VIRT_AIA_TYPE_NONE) { qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", UART0_IRQ); } else { qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", UART0_IRQ, 0x4); } qemu_fdt_add_subnode(ms->fdt, "/chosen"); qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", name); g_free(name); } static void create_fdt_rtc(RISCVVirtState *s, const MemMapEntry *memmap, uint32_t irq_mmio_phandle) { char *name; MachineState *ms = MACHINE(s); name = g_strdup_printf("/soc/rtc@%lx", (long)memmap[VIRT_RTC].base); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "google,goldfish-rtc"); qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, memmap[VIRT_RTC].base, 0x0, memmap[VIRT_RTC].size); qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_mmio_phandle); if (s->aia_type == VIRT_AIA_TYPE_NONE) { qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", RTC_IRQ); } else { qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", RTC_IRQ, 0x4); } g_free(name); } static void create_fdt_flash(RISCVVirtState *s, const MemMapEntry *memmap) { char *name; MachineState *ms = MACHINE(s); hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2; hwaddr flashbase = virt_memmap[VIRT_FLASH].base; name = g_strdup_printf("/flash@%" PRIx64, flashbase); qemu_fdt_add_subnode(ms->fdt, name); qemu_fdt_setprop_string(ms->fdt, name, "compatible", "cfi-flash"); qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg", 2, flashbase, 2, flashsize, 2, flashbase + flashsize, 2, flashsize); qemu_fdt_setprop_cell(ms->fdt, name, "bank-width", 4); g_free(name); } static void create_fdt_fw_cfg(RISCVVirtState *s, const MemMapEntry *memmap) { char *nodename; MachineState *ms = MACHINE(s); hwaddr base = memmap[VIRT_FW_CFG].base; hwaddr size = memmap[VIRT_FW_CFG].size; 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, size); qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); g_free(nodename); } static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap) { MachineState *ms = MACHINE(s); uint32_t phandle = 1, irq_mmio_phandle = 1, msi_pcie_phandle = 1; uint32_t irq_pcie_phandle = 1, irq_virtio_phandle = 1; uint8_t rng_seed[32]; ms->fdt = create_device_tree(&s->fdt_size); if (!ms->fdt) { error_report("create_device_tree() failed"); exit(1); } qemu_fdt_setprop_string(ms->fdt, "/", "model", "riscv-virtio,qemu"); qemu_fdt_setprop_string(ms->fdt, "/", "compatible", "riscv-virtio"); qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); qemu_fdt_add_subnode(ms->fdt, "/soc"); qemu_fdt_setprop(ms->fdt, "/soc", "ranges", NULL, 0); qemu_fdt_setprop_string(ms->fdt, "/soc", "compatible", "simple-bus"); qemu_fdt_setprop_cell(ms->fdt, "/soc", "#size-cells", 0x2); qemu_fdt_setprop_cell(ms->fdt, "/soc", "#address-cells", 0x2); create_fdt_sockets(s, memmap, &phandle, &irq_mmio_phandle, &irq_pcie_phandle, &irq_virtio_phandle, &msi_pcie_phandle); create_fdt_virtio(s, memmap, irq_virtio_phandle); create_fdt_pcie(s, memmap, irq_pcie_phandle, msi_pcie_phandle); create_fdt_reset(s, memmap, &phandle); create_fdt_uart(s, memmap, irq_mmio_phandle); create_fdt_rtc(s, memmap, irq_mmio_phandle); create_fdt_flash(s, memmap); create_fdt_fw_cfg(s, memmap); create_fdt_pmu(s); /* Pass seed to RNG */ qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); qemu_fdt_setprop(ms->fdt, "/chosen", "rng-seed", rng_seed, sizeof(rng_seed)); } static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem, hwaddr ecam_base, hwaddr ecam_size, hwaddr mmio_base, hwaddr mmio_size, hwaddr high_mmio_base, hwaddr high_mmio_size, hwaddr pio_base, DeviceState *irqchip) { DeviceState *dev; MemoryRegion *ecam_alias, *ecam_reg; MemoryRegion *mmio_alias, *high_mmio_alias, *mmio_reg; qemu_irq irq; int i; dev = qdev_new(TYPE_GPEX_HOST); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); ecam_alias = g_new0(MemoryRegion, 1); ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", ecam_reg, 0, ecam_size); memory_region_add_subregion(get_system_memory(), ecam_base, ecam_alias); mmio_alias = g_new0(MemoryRegion, 1); mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", mmio_reg, mmio_base, mmio_size); memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias); /* Map high MMIO space */ high_mmio_alias = g_new0(MemoryRegion, 1); memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", mmio_reg, high_mmio_base, high_mmio_size); memory_region_add_subregion(get_system_memory(), high_mmio_base, high_mmio_alias); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base); for (i = 0; i < GPEX_NUM_IRQS; i++) { irq = qdev_get_gpio_in(irqchip, PCIE_IRQ + i); sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ + i); } return dev; } static FWCfgState *create_fw_cfg(const MachineState *ms) { hwaddr base = virt_memmap[VIRT_FW_CFG].base; FWCfgState *fw_cfg; fw_cfg = fw_cfg_init_mem_wide(base + 8, base, 8, base + 16, &address_space_memory); fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus); return fw_cfg; } static DeviceState *virt_create_plic(const MemMapEntry *memmap, int socket, int base_hartid, int hart_count) { DeviceState *ret; char *plic_hart_config; /* Per-socket PLIC hart topology configuration string */ plic_hart_config = riscv_plic_hart_config_string(hart_count); /* Per-socket PLIC */ ret = sifive_plic_create( memmap[VIRT_PLIC].base + socket * memmap[VIRT_PLIC].size, plic_hart_config, hart_count, base_hartid, VIRT_IRQCHIP_NUM_SOURCES, ((1U << VIRT_IRQCHIP_NUM_PRIO_BITS) - 1), VIRT_PLIC_PRIORITY_BASE, VIRT_PLIC_PENDING_BASE, VIRT_PLIC_ENABLE_BASE, VIRT_PLIC_ENABLE_STRIDE, VIRT_PLIC_CONTEXT_BASE, VIRT_PLIC_CONTEXT_STRIDE, memmap[VIRT_PLIC].size); g_free(plic_hart_config); return ret; } static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, const MemMapEntry *memmap, int socket, int base_hartid, int hart_count) { int i; hwaddr addr; uint32_t guest_bits; DeviceState *aplic_s = NULL; DeviceState *aplic_m = NULL; bool msimode = aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; if (msimode) { if (!kvm_enabled()) { /* Per-socket M-level IMSICs */ addr = memmap[VIRT_IMSIC_M].base + socket * VIRT_IMSIC_GROUP_MAX_SIZE; for (i = 0; i < hart_count; i++) { riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), base_hartid + i, true, 1, VIRT_IRQCHIP_NUM_MSIS); } } /* Per-socket S-level IMSICs */ guest_bits = imsic_num_bits(aia_guests + 1); addr = memmap[VIRT_IMSIC_S].base + socket * VIRT_IMSIC_GROUP_MAX_SIZE; for (i = 0; i < hart_count; i++) { riscv_imsic_create(addr + i * IMSIC_HART_SIZE(guest_bits), base_hartid + i, false, 1 + aia_guests, VIRT_IRQCHIP_NUM_MSIS); } } if (!kvm_enabled()) { /* Per-socket M-level APLIC */ aplic_m = riscv_aplic_create(memmap[VIRT_APLIC_M].base + socket * memmap[VIRT_APLIC_M].size, memmap[VIRT_APLIC_M].size, (msimode) ? 0 : base_hartid, (msimode) ? 0 : hart_count, VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_PRIO_BITS, msimode, true, NULL); } /* Per-socket S-level APLIC */ aplic_s = riscv_aplic_create(memmap[VIRT_APLIC_S].base + socket * memmap[VIRT_APLIC_S].size, memmap[VIRT_APLIC_S].size, (msimode) ? 0 : base_hartid, (msimode) ? 0 : hart_count, VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_PRIO_BITS, msimode, false, aplic_m); return kvm_enabled() ? aplic_s : aplic_m; } static void create_platform_bus(RISCVVirtState *s, DeviceState *irqchip) { DeviceState *dev; SysBusDevice *sysbus; const MemMapEntry *memmap = virt_memmap; int i; 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", memmap[VIRT_PLATFORM_BUS].size); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); s->platform_bus_dev = dev; sysbus = SYS_BUS_DEVICE(dev); for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) { int irq = VIRT_PLATFORM_BUS_IRQ + i; sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(irqchip, irq)); } memory_region_add_subregion(sysmem, memmap[VIRT_PLATFORM_BUS].base, sysbus_mmio_get_region(sysbus, 0)); } static void virt_machine_done(Notifier *notifier, void *data) { RISCVVirtState *s = container_of(notifier, RISCVVirtState, machine_done); const MemMapEntry *memmap = virt_memmap; MachineState *machine = MACHINE(s); target_ulong start_addr = memmap[VIRT_DRAM].base; target_ulong firmware_end_addr, kernel_start_addr; const char *firmware_name = riscv_default_firmware_name(&s->soc[0]); uint64_t fdt_load_addr; uint64_t kernel_entry = 0; BlockBackend *pflash_blk0; /* load/create device tree */ if (machine->dtb) { machine->fdt = load_device_tree(machine->dtb, &s->fdt_size); if (!machine->fdt) { error_report("load_device_tree() failed"); exit(1); } } else { create_fdt(s, memmap); } /* * Only direct boot kernel is currently supported for KVM VM, * so the "-bios" parameter is not supported when KVM is enabled. */ if (kvm_enabled()) { if (machine->firmware) { if (strcmp(machine->firmware, "none")) { error_report("Machine mode firmware is not supported in " "combination with KVM."); exit(1); } } else { machine->firmware = g_strdup("none"); } } firmware_end_addr = riscv_find_and_load_firmware(machine, firmware_name, start_addr, NULL); pflash_blk0 = pflash_cfi01_get_blk(s->flash[0]); if (pflash_blk0) { if (machine->firmware && !strcmp(machine->firmware, "none") && !kvm_enabled()) { /* * Pflash was supplied but bios is none and not KVM guest, * let's overwrite the address we jump to after reset to * the base of the flash. */ start_addr = virt_memmap[VIRT_FLASH].base; } else { /* * Pflash was supplied but either KVM guest or bios is not none. * In this case, base of the flash would contain S-mode payload. */ riscv_setup_firmware_boot(machine); kernel_entry = virt_memmap[VIRT_FLASH].base; } } if (machine->kernel_filename && !kernel_entry) { kernel_start_addr = riscv_calc_kernel_start_addr(&s->soc[0], firmware_end_addr); kernel_entry = riscv_load_kernel(machine, &s->soc[0], kernel_start_addr, true, NULL); } fdt_load_addr = riscv_compute_fdt_addr(memmap[VIRT_DRAM].base, memmap[VIRT_DRAM].size, machine); riscv_load_fdt(fdt_load_addr, machine->fdt); /* load the reset vector */ riscv_setup_rom_reset_vec(machine, &s->soc[0], start_addr, virt_memmap[VIRT_MROM].base, virt_memmap[VIRT_MROM].size, kernel_entry, fdt_load_addr); /* * Only direct boot kernel is currently supported for KVM VM, * So here setup kernel start address and fdt address. * TODO:Support firmware loading and integrate to TCG start */ if (kvm_enabled()) { riscv_setup_direct_kernel(kernel_entry, fdt_load_addr); } if (virt_is_acpi_enabled(s)) { virt_acpi_setup(s); } } static void virt_machine_init(MachineState *machine) { const MemMapEntry *memmap = virt_memmap; RISCVVirtState *s = RISCV_VIRT_MACHINE(machine); MemoryRegion *system_memory = get_system_memory(); MemoryRegion *mask_rom = g_new(MemoryRegion, 1); char *soc_name; DeviceState *mmio_irqchip, *virtio_irqchip, *pcie_irqchip; int i, base_hartid, hart_count; int socket_count = riscv_socket_count(machine); /* Check socket count limit */ if (VIRT_SOCKETS_MAX < socket_count) { error_report("number of sockets/nodes should be less than %d", VIRT_SOCKETS_MAX); exit(1); } if (!tcg_enabled() && s->have_aclint) { error_report("'aclint' is only available with TCG acceleration"); exit(1); } /* Initialize sockets */ mmio_irqchip = virtio_irqchip = pcie_irqchip = NULL; for (i = 0; i < socket_count; i++) { if (!riscv_socket_check_hartids(machine, i)) { error_report("discontinuous hartids in socket%d", i); exit(1); } base_hartid = riscv_socket_first_hartid(machine, i); if (base_hartid < 0) { error_report("can't find hartid base for socket%d", i); exit(1); } hart_count = riscv_socket_hart_count(machine, i); if (hart_count < 0) { error_report("can't find hart count for socket%d", i); exit(1); } soc_name = g_strdup_printf("soc%d", i); object_initialize_child(OBJECT(machine), soc_name, &s->soc[i], TYPE_RISCV_HART_ARRAY); g_free(soc_name); object_property_set_str(OBJECT(&s->soc[i]), "cpu-type", machine->cpu_type, &error_abort); object_property_set_int(OBJECT(&s->soc[i]), "hartid-base", base_hartid, &error_abort); object_property_set_int(OBJECT(&s->soc[i]), "num-harts", hart_count, &error_abort); sysbus_realize(SYS_BUS_DEVICE(&s->soc[i]), &error_fatal); if (tcg_enabled()) { if (s->have_aclint) { if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { /* Per-socket ACLINT MTIMER */ riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + i * RISCV_ACLINT_DEFAULT_MTIMER_SIZE, RISCV_ACLINT_DEFAULT_MTIMER_SIZE, base_hartid, hart_count, RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); } else { /* Per-socket ACLINT MSWI, MTIMER, and SSWI */ riscv_aclint_swi_create(memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size, base_hartid, hart_count, false); riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size + RISCV_ACLINT_SWI_SIZE, RISCV_ACLINT_DEFAULT_MTIMER_SIZE, base_hartid, hart_count, RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); riscv_aclint_swi_create(memmap[VIRT_ACLINT_SSWI].base + i * memmap[VIRT_ACLINT_SSWI].size, base_hartid, hart_count, true); } } else { /* Per-socket SiFive CLINT */ riscv_aclint_swi_create( memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size, base_hartid, hart_count, false); riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size + RISCV_ACLINT_SWI_SIZE, RISCV_ACLINT_DEFAULT_MTIMER_SIZE, base_hartid, hart_count, RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); } } /* Per-socket interrupt controller */ if (s->aia_type == VIRT_AIA_TYPE_NONE) { s->irqchip[i] = virt_create_plic(memmap, i, base_hartid, hart_count); } else { s->irqchip[i] = virt_create_aia(s->aia_type, s->aia_guests, memmap, i, base_hartid, hart_count); } /* Try to use different IRQCHIP instance based device type */ if (i == 0) { mmio_irqchip = s->irqchip[i]; virtio_irqchip = s->irqchip[i]; pcie_irqchip = s->irqchip[i]; } if (i == 1) { virtio_irqchip = s->irqchip[i]; pcie_irqchip = s->irqchip[i]; } if (i == 2) { pcie_irqchip = s->irqchip[i]; } } if (virt_use_kvm_aia(s)) { kvm_riscv_aia_create(machine, IMSIC_MMIO_GROUP_MIN_SHIFT, VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_MSIS, memmap[VIRT_APLIC_S].base, memmap[VIRT_IMSIC_S].base, s->aia_guests); } if (riscv_is_32bit(&s->soc[0])) { #if HOST_LONG_BITS == 64 /* limit RAM size in a 32-bit system */ if (machine->ram_size > 10 * GiB) { machine->ram_size = 10 * GiB; error_report("Limiting RAM size to 10 GiB"); } #endif virt_high_pcie_memmap.base = VIRT32_HIGH_PCIE_MMIO_BASE; virt_high_pcie_memmap.size = VIRT32_HIGH_PCIE_MMIO_SIZE; } else { virt_high_pcie_memmap.size = VIRT64_HIGH_PCIE_MMIO_SIZE; virt_high_pcie_memmap.base = memmap[VIRT_DRAM].base + machine->ram_size; virt_high_pcie_memmap.base = ROUND_UP(virt_high_pcie_memmap.base, virt_high_pcie_memmap.size); } s->memmap = virt_memmap; /* register system main memory (actual RAM) */ memory_region_add_subregion(system_memory, memmap[VIRT_DRAM].base, machine->ram); /* boot rom */ memory_region_init_rom(mask_rom, NULL, "riscv_virt_board.mrom", memmap[VIRT_MROM].size, &error_fatal); memory_region_add_subregion(system_memory, memmap[VIRT_MROM].base, mask_rom); /* * Init fw_cfg. Must be done before riscv_load_fdt, otherwise the * device tree cannot be altered and we get FDT_ERR_NOSPACE. */ s->fw_cfg = create_fw_cfg(machine); rom_set_fw(s->fw_cfg); /* SiFive Test MMIO device */ sifive_test_create(memmap[VIRT_TEST].base); /* VirtIO MMIO devices */ for (i = 0; i < VIRTIO_COUNT; i++) { sysbus_create_simple("virtio-mmio", memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, qdev_get_gpio_in(virtio_irqchip, VIRTIO_IRQ + i)); } gpex_pcie_init(system_memory, memmap[VIRT_PCIE_ECAM].base, memmap[VIRT_PCIE_ECAM].size, memmap[VIRT_PCIE_MMIO].base, memmap[VIRT_PCIE_MMIO].size, virt_high_pcie_memmap.base, virt_high_pcie_memmap.size, memmap[VIRT_PCIE_PIO].base, pcie_irqchip); create_platform_bus(s, mmio_irqchip); serial_mm_init(system_memory, memmap[VIRT_UART0].base, 0, qdev_get_gpio_in(mmio_irqchip, UART0_IRQ), 399193, serial_hd(0), DEVICE_LITTLE_ENDIAN); sysbus_create_simple("goldfish_rtc", memmap[VIRT_RTC].base, qdev_get_gpio_in(mmio_irqchip, RTC_IRQ)); for (i = 0; i < ARRAY_SIZE(s->flash); i++) { /* Map legacy -drive if=pflash to machine properties */ pflash_cfi01_legacy_drive(s->flash[i], drive_get(IF_PFLASH, 0, i)); } virt_flash_map(s, system_memory); s->machine_done.notify = virt_machine_done; qemu_add_machine_init_done_notifier(&s->machine_done); } static void virt_machine_instance_init(Object *obj) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); virt_flash_create(s); s->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); s->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); s->acpi = ON_OFF_AUTO_AUTO; } static char *virt_get_aia_guests(Object *obj, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); char val[32]; sprintf(val, "%d", s->aia_guests); return g_strdup(val); } static void virt_set_aia_guests(Object *obj, const char *val, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); s->aia_guests = atoi(val); if (s->aia_guests < 0 || s->aia_guests > VIRT_IRQCHIP_MAX_GUESTS) { error_setg(errp, "Invalid number of AIA IMSIC guests"); error_append_hint(errp, "Valid values be between 0 and %d.\n", VIRT_IRQCHIP_MAX_GUESTS); } } static char *virt_get_aia(Object *obj, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); const char *val; switch (s->aia_type) { case VIRT_AIA_TYPE_APLIC: val = "aplic"; break; case VIRT_AIA_TYPE_APLIC_IMSIC: val = "aplic-imsic"; break; default: val = "none"; break; }; return g_strdup(val); } static void virt_set_aia(Object *obj, const char *val, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); if (!strcmp(val, "none")) { s->aia_type = VIRT_AIA_TYPE_NONE; } else if (!strcmp(val, "aplic")) { s->aia_type = VIRT_AIA_TYPE_APLIC; } else if (!strcmp(val, "aplic-imsic")) { s->aia_type = VIRT_AIA_TYPE_APLIC_IMSIC; } else { error_setg(errp, "Invalid AIA interrupt controller type"); error_append_hint(errp, "Valid values are none, aplic, and " "aplic-imsic.\n"); } } static bool virt_get_aclint(Object *obj, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); return s->have_aclint; } static void virt_set_aclint(Object *obj, bool value, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); s->have_aclint = value; } bool virt_is_acpi_enabled(RISCVVirtState *s) { return s->acpi != ON_OFF_AUTO_OFF; } static void virt_get_acpi(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); OnOffAuto acpi = s->acpi; visit_type_OnOffAuto(v, name, &acpi, errp); } static void virt_set_acpi(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); visit_type_OnOffAuto(v, name, &s->acpi, errp); } static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, DeviceState *dev) { MachineClass *mc = MACHINE_GET_CLASS(machine); if (device_is_dynamic_sysbus(mc, dev)) { return HOTPLUG_HANDLER(machine); } return NULL; } static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { RISCVVirtState *s = RISCV_VIRT_MACHINE(hotplug_dev); if (s->platform_bus_dev) { MachineClass *mc = MACHINE_GET_CLASS(s); if (device_is_dynamic_sysbus(mc, dev)) { platform_bus_link_device(PLATFORM_BUS_DEVICE(s->platform_bus_dev), SYS_BUS_DEVICE(dev)); } } } static void virt_machine_class_init(ObjectClass *oc, void *data) { char str[128]; MachineClass *mc = MACHINE_CLASS(oc); HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); mc->desc = "RISC-V VirtIO board"; mc->init = virt_machine_init; mc->max_cpus = VIRT_CPUS_MAX; mc->default_cpu_type = TYPE_RISCV_CPU_BASE; mc->pci_allow_0_address = true; mc->possible_cpu_arch_ids = riscv_numa_possible_cpu_arch_ids; mc->cpu_index_to_instance_props = riscv_numa_cpu_index_to_props; mc->get_default_cpu_node_id = riscv_numa_get_default_cpu_node_id; mc->numa_mem_supported = true; /* platform instead of architectural choice */ mc->cpu_cluster_has_numa_boundary = true; mc->default_ram_id = "riscv_virt_board.ram"; assert(!mc->get_hotplug_handler); mc->get_hotplug_handler = virt_machine_get_hotplug_handler; hc->plug = virt_machine_device_plug_cb; 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 object_class_property_add_bool(oc, "aclint", virt_get_aclint, virt_set_aclint); object_class_property_set_description(oc, "aclint", "(TCG only) Set on/off to " "enable/disable emulating " "ACLINT devices"); object_class_property_add_str(oc, "aia", virt_get_aia, virt_set_aia); object_class_property_set_description(oc, "aia", "Set type of AIA interrupt " "controller. Valid values are " "none, aplic, and aplic-imsic."); object_class_property_add_str(oc, "aia-guests", virt_get_aia_guests, virt_set_aia_guests); sprintf(str, "Set number of guest MMIO pages for AIA IMSIC. Valid value " "should be between 0 and %d.", VIRT_IRQCHIP_MAX_GUESTS); object_class_property_set_description(oc, "aia-guests", str); object_class_property_add(oc, "acpi", "OnOffAuto", virt_get_acpi, virt_set_acpi, NULL, NULL); object_class_property_set_description(oc, "acpi", "Enable ACPI"); } static const TypeInfo virt_machine_typeinfo = { .name = MACHINE_TYPE_NAME("virt"), .parent = TYPE_MACHINE, .class_init = virt_machine_class_init, .instance_init = virt_machine_instance_init, .instance_size = sizeof(RISCVVirtState), .interfaces = (InterfaceInfo[]) { { TYPE_HOTPLUG_HANDLER }, { } }, }; static void virt_machine_init_register_types(void) { type_register_static(&virt_machine_typeinfo); } type_init(virt_machine_init_register_types)