1 /* 2 * QEMU RISC-V VirtIO Board 3 * 4 * Copyright (c) 2017 SiFive, Inc. 5 * 6 * RISC-V machine with 16550a UART and VirtIO MMIO 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms and conditions of the GNU General Public License, 10 * version 2 or later, as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along with 18 * this program. If not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #include "qemu/osdep.h" 22 #include "qemu/units.h" 23 #include "qemu/error-report.h" 24 #include "qemu/guest-random.h" 25 #include "qapi/error.h" 26 #include "hw/boards.h" 27 #include "hw/loader.h" 28 #include "hw/sysbus.h" 29 #include "hw/qdev-properties.h" 30 #include "hw/char/serial.h" 31 #include "target/riscv/cpu.h" 32 #include "hw/core/sysbus-fdt.h" 33 #include "target/riscv/pmu.h" 34 #include "hw/riscv/riscv_hart.h" 35 #include "hw/riscv/virt.h" 36 #include "hw/riscv/boot.h" 37 #include "hw/riscv/numa.h" 38 #include "kvm/kvm_riscv.h" 39 #include "hw/firmware/smbios.h" 40 #include "hw/intc/riscv_aclint.h" 41 #include "hw/intc/riscv_aplic.h" 42 #include "hw/intc/sifive_plic.h" 43 #include "hw/misc/sifive_test.h" 44 #include "hw/platform-bus.h" 45 #include "chardev/char.h" 46 #include "sysemu/device_tree.h" 47 #include "sysemu/sysemu.h" 48 #include "sysemu/tcg.h" 49 #include "sysemu/kvm.h" 50 #include "sysemu/tpm.h" 51 #include "sysemu/qtest.h" 52 #include "hw/pci/pci.h" 53 #include "hw/pci-host/gpex.h" 54 #include "hw/display/ramfb.h" 55 #include "hw/acpi/aml-build.h" 56 #include "qapi/qapi-visit-common.h" 57 #include "hw/virtio/virtio-iommu.h" 58 59 /* KVM AIA only supports APLIC MSI. APLIC Wired is always emulated by QEMU. */ 60 static bool virt_use_kvm_aia(RISCVVirtState *s) 61 { 62 return kvm_irqchip_in_kernel() && s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; 63 } 64 65 static bool virt_aclint_allowed(void) 66 { 67 return tcg_enabled() || qtest_enabled(); 68 } 69 70 static const MemMapEntry virt_memmap[] = { 71 [VIRT_DEBUG] = { 0x0, 0x100 }, 72 [VIRT_MROM] = { 0x1000, 0xf000 }, 73 [VIRT_TEST] = { 0x100000, 0x1000 }, 74 [VIRT_RTC] = { 0x101000, 0x1000 }, 75 [VIRT_CLINT] = { 0x2000000, 0x10000 }, 76 [VIRT_ACLINT_SSWI] = { 0x2F00000, 0x4000 }, 77 [VIRT_PCIE_PIO] = { 0x3000000, 0x10000 }, 78 [VIRT_PLATFORM_BUS] = { 0x4000000, 0x2000000 }, 79 [VIRT_PLIC] = { 0xc000000, VIRT_PLIC_SIZE(VIRT_CPUS_MAX * 2) }, 80 [VIRT_APLIC_M] = { 0xc000000, APLIC_SIZE(VIRT_CPUS_MAX) }, 81 [VIRT_APLIC_S] = { 0xd000000, APLIC_SIZE(VIRT_CPUS_MAX) }, 82 [VIRT_UART0] = { 0x10000000, 0x100 }, 83 [VIRT_VIRTIO] = { 0x10001000, 0x1000 }, 84 [VIRT_FW_CFG] = { 0x10100000, 0x18 }, 85 [VIRT_FLASH] = { 0x20000000, 0x4000000 }, 86 [VIRT_IMSIC_M] = { 0x24000000, VIRT_IMSIC_MAX_SIZE }, 87 [VIRT_IMSIC_S] = { 0x28000000, VIRT_IMSIC_MAX_SIZE }, 88 [VIRT_PCIE_ECAM] = { 0x30000000, 0x10000000 }, 89 [VIRT_PCIE_MMIO] = { 0x40000000, 0x40000000 }, 90 [VIRT_DRAM] = { 0x80000000, 0x0 }, 91 }; 92 93 /* PCIe high mmio is fixed for RV32 */ 94 #define VIRT32_HIGH_PCIE_MMIO_BASE 0x300000000ULL 95 #define VIRT32_HIGH_PCIE_MMIO_SIZE (4 * GiB) 96 97 /* PCIe high mmio for RV64, size is fixed but base depends on top of RAM */ 98 #define VIRT64_HIGH_PCIE_MMIO_SIZE (16 * GiB) 99 100 static MemMapEntry virt_high_pcie_memmap; 101 102 #define VIRT_FLASH_SECTOR_SIZE (256 * KiB) 103 104 static PFlashCFI01 *virt_flash_create1(RISCVVirtState *s, 105 const char *name, 106 const char *alias_prop_name) 107 { 108 /* 109 * Create a single flash device. We use the same parameters as 110 * the flash devices on the ARM virt board. 111 */ 112 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); 113 114 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE); 115 qdev_prop_set_uint8(dev, "width", 4); 116 qdev_prop_set_uint8(dev, "device-width", 2); 117 qdev_prop_set_bit(dev, "big-endian", false); 118 qdev_prop_set_uint16(dev, "id0", 0x89); 119 qdev_prop_set_uint16(dev, "id1", 0x18); 120 qdev_prop_set_uint16(dev, "id2", 0x00); 121 qdev_prop_set_uint16(dev, "id3", 0x00); 122 qdev_prop_set_string(dev, "name", name); 123 124 object_property_add_child(OBJECT(s), name, OBJECT(dev)); 125 object_property_add_alias(OBJECT(s), alias_prop_name, 126 OBJECT(dev), "drive"); 127 128 return PFLASH_CFI01(dev); 129 } 130 131 static void virt_flash_create(RISCVVirtState *s) 132 { 133 s->flash[0] = virt_flash_create1(s, "virt.flash0", "pflash0"); 134 s->flash[1] = virt_flash_create1(s, "virt.flash1", "pflash1"); 135 } 136 137 static void virt_flash_map1(PFlashCFI01 *flash, 138 hwaddr base, hwaddr size, 139 MemoryRegion *sysmem) 140 { 141 DeviceState *dev = DEVICE(flash); 142 143 assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE)); 144 assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); 145 qdev_prop_set_uint32(dev, "num-blocks", size / VIRT_FLASH_SECTOR_SIZE); 146 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 147 148 memory_region_add_subregion(sysmem, base, 149 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 150 0)); 151 } 152 153 static void virt_flash_map(RISCVVirtState *s, 154 MemoryRegion *sysmem) 155 { 156 hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2; 157 hwaddr flashbase = virt_memmap[VIRT_FLASH].base; 158 159 virt_flash_map1(s->flash[0], flashbase, flashsize, 160 sysmem); 161 virt_flash_map1(s->flash[1], flashbase + flashsize, flashsize, 162 sysmem); 163 } 164 165 static void create_pcie_irq_map(RISCVVirtState *s, void *fdt, char *nodename, 166 uint32_t irqchip_phandle) 167 { 168 int pin, dev; 169 uint32_t irq_map_stride = 0; 170 uint32_t full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * 171 FDT_MAX_INT_MAP_WIDTH] = {}; 172 uint32_t *irq_map = full_irq_map; 173 174 /* This code creates a standard swizzle of interrupts such that 175 * each device's first interrupt is based on it's PCI_SLOT number. 176 * (See pci_swizzle_map_irq_fn()) 177 * 178 * We only need one entry per interrupt in the table (not one per 179 * possible slot) seeing the interrupt-map-mask will allow the table 180 * to wrap to any number of devices. 181 */ 182 for (dev = 0; dev < GPEX_NUM_IRQS; dev++) { 183 int devfn = dev * 0x8; 184 185 for (pin = 0; pin < GPEX_NUM_IRQS; pin++) { 186 int irq_nr = PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_IRQS); 187 int i = 0; 188 189 /* Fill PCI address cells */ 190 irq_map[i] = cpu_to_be32(devfn << 8); 191 i += FDT_PCI_ADDR_CELLS; 192 193 /* Fill PCI Interrupt cells */ 194 irq_map[i] = cpu_to_be32(pin + 1); 195 i += FDT_PCI_INT_CELLS; 196 197 /* Fill interrupt controller phandle and cells */ 198 irq_map[i++] = cpu_to_be32(irqchip_phandle); 199 irq_map[i++] = cpu_to_be32(irq_nr); 200 if (s->aia_type != VIRT_AIA_TYPE_NONE) { 201 irq_map[i++] = cpu_to_be32(0x4); 202 } 203 204 if (!irq_map_stride) { 205 irq_map_stride = i; 206 } 207 irq_map += irq_map_stride; 208 } 209 } 210 211 qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map, 212 GPEX_NUM_IRQS * GPEX_NUM_IRQS * 213 irq_map_stride * sizeof(uint32_t)); 214 215 qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask", 216 0x1800, 0, 0, 0x7); 217 } 218 219 static void create_fdt_socket_cpus(RISCVVirtState *s, int socket, 220 char *clust_name, uint32_t *phandle, 221 uint32_t *intc_phandles) 222 { 223 int cpu; 224 uint32_t cpu_phandle; 225 MachineState *ms = MACHINE(s); 226 bool is_32_bit = riscv_is_32bit(&s->soc[0]); 227 uint8_t satp_mode_max; 228 229 for (cpu = s->soc[socket].num_harts - 1; cpu >= 0; cpu--) { 230 RISCVCPU *cpu_ptr = &s->soc[socket].harts[cpu]; 231 g_autofree char *cpu_name = NULL; 232 g_autofree char *core_name = NULL; 233 g_autofree char *intc_name = NULL; 234 g_autofree char *sv_name = NULL; 235 236 cpu_phandle = (*phandle)++; 237 238 cpu_name = g_strdup_printf("/cpus/cpu@%d", 239 s->soc[socket].hartid_base + cpu); 240 qemu_fdt_add_subnode(ms->fdt, cpu_name); 241 242 if (cpu_ptr->cfg.satp_mode.supported != 0) { 243 satp_mode_max = satp_mode_max_from_map(cpu_ptr->cfg.satp_mode.map); 244 sv_name = g_strdup_printf("riscv,%s", 245 satp_mode_str(satp_mode_max, is_32_bit)); 246 qemu_fdt_setprop_string(ms->fdt, cpu_name, "mmu-type", sv_name); 247 } 248 249 riscv_isa_write_fdt(cpu_ptr, ms->fdt, cpu_name); 250 251 if (cpu_ptr->cfg.ext_zicbom) { 252 qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbom-block-size", 253 cpu_ptr->cfg.cbom_blocksize); 254 } 255 256 if (cpu_ptr->cfg.ext_zicboz) { 257 qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cboz-block-size", 258 cpu_ptr->cfg.cboz_blocksize); 259 } 260 261 if (cpu_ptr->cfg.ext_zicbop) { 262 qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbop-block-size", 263 cpu_ptr->cfg.cbop_blocksize); 264 } 265 266 qemu_fdt_setprop_string(ms->fdt, cpu_name, "compatible", "riscv"); 267 qemu_fdt_setprop_string(ms->fdt, cpu_name, "status", "okay"); 268 qemu_fdt_setprop_cell(ms->fdt, cpu_name, "reg", 269 s->soc[socket].hartid_base + cpu); 270 qemu_fdt_setprop_string(ms->fdt, cpu_name, "device_type", "cpu"); 271 riscv_socket_fdt_write_id(ms, cpu_name, socket); 272 qemu_fdt_setprop_cell(ms->fdt, cpu_name, "phandle", cpu_phandle); 273 274 intc_phandles[cpu] = (*phandle)++; 275 276 intc_name = g_strdup_printf("%s/interrupt-controller", cpu_name); 277 qemu_fdt_add_subnode(ms->fdt, intc_name); 278 qemu_fdt_setprop_cell(ms->fdt, intc_name, "phandle", 279 intc_phandles[cpu]); 280 qemu_fdt_setprop_string(ms->fdt, intc_name, "compatible", 281 "riscv,cpu-intc"); 282 qemu_fdt_setprop(ms->fdt, intc_name, "interrupt-controller", NULL, 0); 283 qemu_fdt_setprop_cell(ms->fdt, intc_name, "#interrupt-cells", 1); 284 285 core_name = g_strdup_printf("%s/core%d", clust_name, cpu); 286 qemu_fdt_add_subnode(ms->fdt, core_name); 287 qemu_fdt_setprop_cell(ms->fdt, core_name, "cpu", cpu_phandle); 288 } 289 } 290 291 static void create_fdt_socket_memory(RISCVVirtState *s, 292 const MemMapEntry *memmap, int socket) 293 { 294 g_autofree char *mem_name = NULL; 295 uint64_t addr, size; 296 MachineState *ms = MACHINE(s); 297 298 addr = memmap[VIRT_DRAM].base + riscv_socket_mem_offset(ms, socket); 299 size = riscv_socket_mem_size(ms, socket); 300 mem_name = g_strdup_printf("/memory@%lx", (long)addr); 301 qemu_fdt_add_subnode(ms->fdt, mem_name); 302 qemu_fdt_setprop_cells(ms->fdt, mem_name, "reg", 303 addr >> 32, addr, size >> 32, size); 304 qemu_fdt_setprop_string(ms->fdt, mem_name, "device_type", "memory"); 305 riscv_socket_fdt_write_id(ms, mem_name, socket); 306 } 307 308 static void create_fdt_socket_clint(RISCVVirtState *s, 309 const MemMapEntry *memmap, int socket, 310 uint32_t *intc_phandles) 311 { 312 int cpu; 313 g_autofree char *clint_name = NULL; 314 g_autofree uint32_t *clint_cells = NULL; 315 unsigned long clint_addr; 316 MachineState *ms = MACHINE(s); 317 static const char * const clint_compat[2] = { 318 "sifive,clint0", "riscv,clint0" 319 }; 320 321 clint_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); 322 323 for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { 324 clint_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandles[cpu]); 325 clint_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT); 326 clint_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandles[cpu]); 327 clint_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER); 328 } 329 330 clint_addr = memmap[VIRT_CLINT].base + (memmap[VIRT_CLINT].size * socket); 331 clint_name = g_strdup_printf("/soc/clint@%lx", clint_addr); 332 qemu_fdt_add_subnode(ms->fdt, clint_name); 333 qemu_fdt_setprop_string_array(ms->fdt, clint_name, "compatible", 334 (char **)&clint_compat, 335 ARRAY_SIZE(clint_compat)); 336 qemu_fdt_setprop_cells(ms->fdt, clint_name, "reg", 337 0x0, clint_addr, 0x0, memmap[VIRT_CLINT].size); 338 qemu_fdt_setprop(ms->fdt, clint_name, "interrupts-extended", 339 clint_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 4); 340 riscv_socket_fdt_write_id(ms, clint_name, socket); 341 } 342 343 static void create_fdt_socket_aclint(RISCVVirtState *s, 344 const MemMapEntry *memmap, int socket, 345 uint32_t *intc_phandles) 346 { 347 int cpu; 348 char *name; 349 unsigned long addr, size; 350 uint32_t aclint_cells_size; 351 g_autofree uint32_t *aclint_mswi_cells = NULL; 352 g_autofree uint32_t *aclint_sswi_cells = NULL; 353 g_autofree uint32_t *aclint_mtimer_cells = NULL; 354 MachineState *ms = MACHINE(s); 355 356 aclint_mswi_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); 357 aclint_mtimer_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); 358 aclint_sswi_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); 359 360 for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { 361 aclint_mswi_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 362 aclint_mswi_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_SOFT); 363 aclint_mtimer_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 364 aclint_mtimer_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_TIMER); 365 aclint_sswi_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 366 aclint_sswi_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_SOFT); 367 } 368 aclint_cells_size = s->soc[socket].num_harts * sizeof(uint32_t) * 2; 369 370 if (s->aia_type != VIRT_AIA_TYPE_APLIC_IMSIC) { 371 addr = memmap[VIRT_CLINT].base + (memmap[VIRT_CLINT].size * socket); 372 name = g_strdup_printf("/soc/mswi@%lx", addr); 373 qemu_fdt_add_subnode(ms->fdt, name); 374 qemu_fdt_setprop_string(ms->fdt, name, "compatible", 375 "riscv,aclint-mswi"); 376 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 377 0x0, addr, 0x0, RISCV_ACLINT_SWI_SIZE); 378 qemu_fdt_setprop(ms->fdt, name, "interrupts-extended", 379 aclint_mswi_cells, aclint_cells_size); 380 qemu_fdt_setprop(ms->fdt, name, "interrupt-controller", NULL, 0); 381 qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", 0); 382 riscv_socket_fdt_write_id(ms, name, socket); 383 g_free(name); 384 } 385 386 if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { 387 addr = memmap[VIRT_CLINT].base + 388 (RISCV_ACLINT_DEFAULT_MTIMER_SIZE * socket); 389 size = RISCV_ACLINT_DEFAULT_MTIMER_SIZE; 390 } else { 391 addr = memmap[VIRT_CLINT].base + RISCV_ACLINT_SWI_SIZE + 392 (memmap[VIRT_CLINT].size * socket); 393 size = memmap[VIRT_CLINT].size - RISCV_ACLINT_SWI_SIZE; 394 } 395 name = g_strdup_printf("/soc/mtimer@%lx", addr); 396 qemu_fdt_add_subnode(ms->fdt, name); 397 qemu_fdt_setprop_string(ms->fdt, name, "compatible", 398 "riscv,aclint-mtimer"); 399 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 400 0x0, addr + RISCV_ACLINT_DEFAULT_MTIME, 401 0x0, size - RISCV_ACLINT_DEFAULT_MTIME, 402 0x0, addr + RISCV_ACLINT_DEFAULT_MTIMECMP, 403 0x0, RISCV_ACLINT_DEFAULT_MTIME); 404 qemu_fdt_setprop(ms->fdt, name, "interrupts-extended", 405 aclint_mtimer_cells, aclint_cells_size); 406 riscv_socket_fdt_write_id(ms, name, socket); 407 g_free(name); 408 409 if (s->aia_type != VIRT_AIA_TYPE_APLIC_IMSIC) { 410 addr = memmap[VIRT_ACLINT_SSWI].base + 411 (memmap[VIRT_ACLINT_SSWI].size * socket); 412 name = g_strdup_printf("/soc/sswi@%lx", addr); 413 qemu_fdt_add_subnode(ms->fdt, name); 414 qemu_fdt_setprop_string(ms->fdt, name, "compatible", 415 "riscv,aclint-sswi"); 416 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 417 0x0, addr, 0x0, memmap[VIRT_ACLINT_SSWI].size); 418 qemu_fdt_setprop(ms->fdt, name, "interrupts-extended", 419 aclint_sswi_cells, aclint_cells_size); 420 qemu_fdt_setprop(ms->fdt, name, "interrupt-controller", NULL, 0); 421 qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", 0); 422 riscv_socket_fdt_write_id(ms, name, socket); 423 g_free(name); 424 } 425 } 426 427 static void create_fdt_socket_plic(RISCVVirtState *s, 428 const MemMapEntry *memmap, int socket, 429 uint32_t *phandle, uint32_t *intc_phandles, 430 uint32_t *plic_phandles) 431 { 432 int cpu; 433 g_autofree char *plic_name = NULL; 434 g_autofree uint32_t *plic_cells; 435 unsigned long plic_addr; 436 MachineState *ms = MACHINE(s); 437 static const char * const plic_compat[2] = { 438 "sifive,plic-1.0.0", "riscv,plic0" 439 }; 440 441 plic_phandles[socket] = (*phandle)++; 442 plic_addr = memmap[VIRT_PLIC].base + (memmap[VIRT_PLIC].size * socket); 443 plic_name = g_strdup_printf("/soc/plic@%lx", plic_addr); 444 qemu_fdt_add_subnode(ms->fdt, plic_name); 445 qemu_fdt_setprop_cell(ms->fdt, plic_name, 446 "#interrupt-cells", FDT_PLIC_INT_CELLS); 447 qemu_fdt_setprop_cell(ms->fdt, plic_name, 448 "#address-cells", FDT_PLIC_ADDR_CELLS); 449 qemu_fdt_setprop_string_array(ms->fdt, plic_name, "compatible", 450 (char **)&plic_compat, 451 ARRAY_SIZE(plic_compat)); 452 qemu_fdt_setprop(ms->fdt, plic_name, "interrupt-controller", NULL, 0); 453 454 if (kvm_enabled()) { 455 plic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); 456 457 for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { 458 plic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 459 plic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_EXT); 460 } 461 462 qemu_fdt_setprop(ms->fdt, plic_name, "interrupts-extended", 463 plic_cells, 464 s->soc[socket].num_harts * sizeof(uint32_t) * 2); 465 } else { 466 plic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 4); 467 468 for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { 469 plic_cells[cpu * 4 + 0] = cpu_to_be32(intc_phandles[cpu]); 470 plic_cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_EXT); 471 plic_cells[cpu * 4 + 2] = cpu_to_be32(intc_phandles[cpu]); 472 plic_cells[cpu * 4 + 3] = cpu_to_be32(IRQ_S_EXT); 473 } 474 475 qemu_fdt_setprop(ms->fdt, plic_name, "interrupts-extended", 476 plic_cells, 477 s->soc[socket].num_harts * sizeof(uint32_t) * 4); 478 } 479 480 qemu_fdt_setprop_cells(ms->fdt, plic_name, "reg", 481 0x0, plic_addr, 0x0, memmap[VIRT_PLIC].size); 482 qemu_fdt_setprop_cell(ms->fdt, plic_name, "riscv,ndev", 483 VIRT_IRQCHIP_NUM_SOURCES - 1); 484 riscv_socket_fdt_write_id(ms, plic_name, socket); 485 qemu_fdt_setprop_cell(ms->fdt, plic_name, "phandle", 486 plic_phandles[socket]); 487 488 if (!socket) { 489 platform_bus_add_all_fdt_nodes(ms->fdt, plic_name, 490 memmap[VIRT_PLATFORM_BUS].base, 491 memmap[VIRT_PLATFORM_BUS].size, 492 VIRT_PLATFORM_BUS_IRQ); 493 } 494 } 495 496 uint32_t imsic_num_bits(uint32_t count) 497 { 498 uint32_t ret = 0; 499 500 while (BIT(ret) < count) { 501 ret++; 502 } 503 504 return ret; 505 } 506 507 static void create_fdt_one_imsic(RISCVVirtState *s, hwaddr base_addr, 508 uint32_t *intc_phandles, uint32_t msi_phandle, 509 bool m_mode, uint32_t imsic_guest_bits) 510 { 511 int cpu, socket; 512 g_autofree char *imsic_name = NULL; 513 MachineState *ms = MACHINE(s); 514 int socket_count = riscv_socket_count(ms); 515 uint32_t imsic_max_hart_per_socket, imsic_addr, imsic_size; 516 g_autofree uint32_t *imsic_cells = NULL; 517 g_autofree uint32_t *imsic_regs = NULL; 518 519 imsic_cells = g_new0(uint32_t, ms->smp.cpus * 2); 520 imsic_regs = g_new0(uint32_t, socket_count * 4); 521 522 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 523 imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 524 imsic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); 525 } 526 527 imsic_max_hart_per_socket = 0; 528 for (socket = 0; socket < socket_count; socket++) { 529 imsic_addr = base_addr + socket * VIRT_IMSIC_GROUP_MAX_SIZE; 530 imsic_size = IMSIC_HART_SIZE(imsic_guest_bits) * 531 s->soc[socket].num_harts; 532 imsic_regs[socket * 4 + 0] = 0; 533 imsic_regs[socket * 4 + 1] = cpu_to_be32(imsic_addr); 534 imsic_regs[socket * 4 + 2] = 0; 535 imsic_regs[socket * 4 + 3] = cpu_to_be32(imsic_size); 536 if (imsic_max_hart_per_socket < s->soc[socket].num_harts) { 537 imsic_max_hart_per_socket = s->soc[socket].num_harts; 538 } 539 } 540 541 imsic_name = g_strdup_printf("/soc/interrupt-controller@%lx", 542 (unsigned long)base_addr); 543 qemu_fdt_add_subnode(ms->fdt, imsic_name); 544 qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", "riscv,imsics"); 545 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", 546 FDT_IMSIC_INT_CELLS); 547 qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", NULL, 0); 548 qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", NULL, 0); 549 qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", 550 imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); 551 qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, 552 socket_count * sizeof(uint32_t) * 4); 553 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", 554 VIRT_IRQCHIP_NUM_MSIS); 555 556 if (imsic_guest_bits) { 557 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,guest-index-bits", 558 imsic_guest_bits); 559 } 560 561 if (socket_count > 1) { 562 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", 563 imsic_num_bits(imsic_max_hart_per_socket)); 564 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", 565 imsic_num_bits(socket_count)); 566 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", 567 IMSIC_MMIO_GROUP_MIN_SHIFT); 568 } 569 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", msi_phandle); 570 } 571 572 static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, 573 uint32_t *phandle, uint32_t *intc_phandles, 574 uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) 575 { 576 *msi_m_phandle = (*phandle)++; 577 *msi_s_phandle = (*phandle)++; 578 579 if (!kvm_enabled()) { 580 /* M-level IMSIC node */ 581 create_fdt_one_imsic(s, memmap[VIRT_IMSIC_M].base, intc_phandles, 582 *msi_m_phandle, true, 0); 583 } 584 585 /* S-level IMSIC node */ 586 create_fdt_one_imsic(s, memmap[VIRT_IMSIC_S].base, intc_phandles, 587 *msi_s_phandle, false, 588 imsic_num_bits(s->aia_guests + 1)); 589 590 } 591 592 /* Caller must free string after use */ 593 static char *fdt_get_aplic_nodename(unsigned long aplic_addr) 594 { 595 return g_strdup_printf("/soc/interrupt-controller@%lx", aplic_addr); 596 } 597 598 static void create_fdt_one_aplic(RISCVVirtState *s, int socket, 599 unsigned long aplic_addr, uint32_t aplic_size, 600 uint32_t msi_phandle, 601 uint32_t *intc_phandles, 602 uint32_t aplic_phandle, 603 uint32_t aplic_child_phandle, 604 bool m_mode, int num_harts) 605 { 606 int cpu; 607 g_autofree char *aplic_name = fdt_get_aplic_nodename(aplic_addr); 608 g_autofree uint32_t *aplic_cells = g_new0(uint32_t, num_harts * 2); 609 MachineState *ms = MACHINE(s); 610 static const char * const aplic_compat[2] = { 611 "qemu,aplic", "riscv,aplic" 612 }; 613 614 for (cpu = 0; cpu < num_harts; cpu++) { 615 aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 616 aplic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); 617 } 618 619 qemu_fdt_add_subnode(ms->fdt, aplic_name); 620 qemu_fdt_setprop_string_array(ms->fdt, aplic_name, "compatible", 621 (char **)&aplic_compat, 622 ARRAY_SIZE(aplic_compat)); 623 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "#address-cells", 624 FDT_APLIC_ADDR_CELLS); 625 qemu_fdt_setprop_cell(ms->fdt, aplic_name, 626 "#interrupt-cells", FDT_APLIC_INT_CELLS); 627 qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); 628 629 if (s->aia_type == VIRT_AIA_TYPE_APLIC) { 630 qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", 631 aplic_cells, num_harts * sizeof(uint32_t) * 2); 632 } else { 633 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", msi_phandle); 634 } 635 636 qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", 637 0x0, aplic_addr, 0x0, aplic_size); 638 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", 639 VIRT_IRQCHIP_NUM_SOURCES); 640 641 if (aplic_child_phandle) { 642 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", 643 aplic_child_phandle); 644 qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegation", 645 aplic_child_phandle, 0x1, 646 VIRT_IRQCHIP_NUM_SOURCES); 647 } 648 649 riscv_socket_fdt_write_id(ms, aplic_name, socket); 650 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_phandle); 651 } 652 653 static void create_fdt_socket_aplic(RISCVVirtState *s, 654 const MemMapEntry *memmap, int socket, 655 uint32_t msi_m_phandle, 656 uint32_t msi_s_phandle, 657 uint32_t *phandle, 658 uint32_t *intc_phandles, 659 uint32_t *aplic_phandles, 660 int num_harts) 661 { 662 unsigned long aplic_addr; 663 MachineState *ms = MACHINE(s); 664 uint32_t aplic_m_phandle, aplic_s_phandle; 665 666 aplic_m_phandle = (*phandle)++; 667 aplic_s_phandle = (*phandle)++; 668 669 if (!kvm_enabled()) { 670 /* M-level APLIC node */ 671 aplic_addr = memmap[VIRT_APLIC_M].base + 672 (memmap[VIRT_APLIC_M].size * socket); 673 create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_M].size, 674 msi_m_phandle, intc_phandles, 675 aplic_m_phandle, aplic_s_phandle, 676 true, num_harts); 677 } 678 679 /* S-level APLIC node */ 680 aplic_addr = memmap[VIRT_APLIC_S].base + 681 (memmap[VIRT_APLIC_S].size * socket); 682 create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_S].size, 683 msi_s_phandle, intc_phandles, 684 aplic_s_phandle, 0, 685 false, num_harts); 686 687 if (!socket) { 688 g_autofree char *aplic_name = fdt_get_aplic_nodename(aplic_addr); 689 platform_bus_add_all_fdt_nodes(ms->fdt, aplic_name, 690 memmap[VIRT_PLATFORM_BUS].base, 691 memmap[VIRT_PLATFORM_BUS].size, 692 VIRT_PLATFORM_BUS_IRQ); 693 } 694 695 aplic_phandles[socket] = aplic_s_phandle; 696 } 697 698 static void create_fdt_pmu(RISCVVirtState *s) 699 { 700 g_autofree char *pmu_name = g_strdup_printf("/pmu"); 701 MachineState *ms = MACHINE(s); 702 RISCVCPU hart = s->soc[0].harts[0]; 703 704 qemu_fdt_add_subnode(ms->fdt, pmu_name); 705 qemu_fdt_setprop_string(ms->fdt, pmu_name, "compatible", "riscv,pmu"); 706 riscv_pmu_generate_fdt_node(ms->fdt, hart.pmu_avail_ctrs, pmu_name); 707 } 708 709 static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, 710 uint32_t *phandle, 711 uint32_t *irq_mmio_phandle, 712 uint32_t *irq_pcie_phandle, 713 uint32_t *irq_virtio_phandle, 714 uint32_t *msi_pcie_phandle) 715 { 716 int socket, phandle_pos; 717 MachineState *ms = MACHINE(s); 718 uint32_t msi_m_phandle = 0, msi_s_phandle = 0; 719 uint32_t xplic_phandles[MAX_NODES]; 720 g_autofree uint32_t *intc_phandles = NULL; 721 int socket_count = riscv_socket_count(ms); 722 723 qemu_fdt_add_subnode(ms->fdt, "/cpus"); 724 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "timebase-frequency", 725 kvm_enabled() ? 726 kvm_riscv_get_timebase_frequency(first_cpu) : 727 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ); 728 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); 729 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); 730 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); 731 732 intc_phandles = g_new0(uint32_t, ms->smp.cpus); 733 734 phandle_pos = ms->smp.cpus; 735 for (socket = (socket_count - 1); socket >= 0; socket--) { 736 g_autofree char *clust_name = NULL; 737 phandle_pos -= s->soc[socket].num_harts; 738 739 clust_name = g_strdup_printf("/cpus/cpu-map/cluster%d", socket); 740 qemu_fdt_add_subnode(ms->fdt, clust_name); 741 742 create_fdt_socket_cpus(s, socket, clust_name, phandle, 743 &intc_phandles[phandle_pos]); 744 745 create_fdt_socket_memory(s, memmap, socket); 746 747 if (virt_aclint_allowed() && s->have_aclint) { 748 create_fdt_socket_aclint(s, memmap, socket, 749 &intc_phandles[phandle_pos]); 750 } else if (tcg_enabled()) { 751 create_fdt_socket_clint(s, memmap, socket, 752 &intc_phandles[phandle_pos]); 753 } 754 } 755 756 if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { 757 create_fdt_imsic(s, memmap, phandle, intc_phandles, 758 &msi_m_phandle, &msi_s_phandle); 759 *msi_pcie_phandle = msi_s_phandle; 760 } 761 762 /* KVM AIA only has one APLIC instance */ 763 if (kvm_enabled() && virt_use_kvm_aia(s)) { 764 create_fdt_socket_aplic(s, memmap, 0, 765 msi_m_phandle, msi_s_phandle, phandle, 766 &intc_phandles[0], xplic_phandles, 767 ms->smp.cpus); 768 } else { 769 phandle_pos = ms->smp.cpus; 770 for (socket = (socket_count - 1); socket >= 0; socket--) { 771 phandle_pos -= s->soc[socket].num_harts; 772 773 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 774 create_fdt_socket_plic(s, memmap, socket, phandle, 775 &intc_phandles[phandle_pos], 776 xplic_phandles); 777 } else { 778 create_fdt_socket_aplic(s, memmap, socket, 779 msi_m_phandle, msi_s_phandle, phandle, 780 &intc_phandles[phandle_pos], 781 xplic_phandles, 782 s->soc[socket].num_harts); 783 } 784 } 785 } 786 787 if (kvm_enabled() && virt_use_kvm_aia(s)) { 788 *irq_mmio_phandle = xplic_phandles[0]; 789 *irq_virtio_phandle = xplic_phandles[0]; 790 *irq_pcie_phandle = xplic_phandles[0]; 791 } else { 792 for (socket = 0; socket < socket_count; socket++) { 793 if (socket == 0) { 794 *irq_mmio_phandle = xplic_phandles[socket]; 795 *irq_virtio_phandle = xplic_phandles[socket]; 796 *irq_pcie_phandle = xplic_phandles[socket]; 797 } 798 if (socket == 1) { 799 *irq_virtio_phandle = xplic_phandles[socket]; 800 *irq_pcie_phandle = xplic_phandles[socket]; 801 } 802 if (socket == 2) { 803 *irq_pcie_phandle = xplic_phandles[socket]; 804 } 805 } 806 } 807 808 riscv_socket_fdt_write_distance_matrix(ms); 809 } 810 811 static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap, 812 uint32_t irq_virtio_phandle) 813 { 814 int i; 815 MachineState *ms = MACHINE(s); 816 817 for (i = 0; i < VIRTIO_COUNT; i++) { 818 g_autofree char *name = g_strdup_printf("/soc/virtio_mmio@%lx", 819 (long)(memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size)); 820 821 qemu_fdt_add_subnode(ms->fdt, name); 822 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "virtio,mmio"); 823 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 824 0x0, memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 825 0x0, memmap[VIRT_VIRTIO].size); 826 qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", 827 irq_virtio_phandle); 828 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 829 qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", 830 VIRTIO_IRQ + i); 831 } else { 832 qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", 833 VIRTIO_IRQ + i, 0x4); 834 } 835 } 836 } 837 838 static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, 839 uint32_t irq_pcie_phandle, 840 uint32_t msi_pcie_phandle) 841 { 842 g_autofree char *name = NULL; 843 MachineState *ms = MACHINE(s); 844 845 name = g_strdup_printf("/soc/pci@%lx", 846 (long) memmap[VIRT_PCIE_ECAM].base); 847 qemu_fdt_setprop_cell(ms->fdt, name, "#address-cells", 848 FDT_PCI_ADDR_CELLS); 849 qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", 850 FDT_PCI_INT_CELLS); 851 qemu_fdt_setprop_cell(ms->fdt, name, "#size-cells", 0x2); 852 qemu_fdt_setprop_string(ms->fdt, name, "compatible", 853 "pci-host-ecam-generic"); 854 qemu_fdt_setprop_string(ms->fdt, name, "device_type", "pci"); 855 qemu_fdt_setprop_cell(ms->fdt, name, "linux,pci-domain", 0); 856 qemu_fdt_setprop_cells(ms->fdt, name, "bus-range", 0, 857 memmap[VIRT_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN - 1); 858 qemu_fdt_setprop(ms->fdt, name, "dma-coherent", NULL, 0); 859 if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { 860 qemu_fdt_setprop_cell(ms->fdt, name, "msi-parent", msi_pcie_phandle); 861 } 862 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0, 863 memmap[VIRT_PCIE_ECAM].base, 0, memmap[VIRT_PCIE_ECAM].size); 864 qemu_fdt_setprop_sized_cells(ms->fdt, name, "ranges", 865 1, FDT_PCI_RANGE_IOPORT, 2, 0, 866 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size, 867 1, FDT_PCI_RANGE_MMIO, 868 2, memmap[VIRT_PCIE_MMIO].base, 869 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size, 870 1, FDT_PCI_RANGE_MMIO_64BIT, 871 2, virt_high_pcie_memmap.base, 872 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.size); 873 874 create_pcie_irq_map(s, ms->fdt, name, irq_pcie_phandle); 875 } 876 877 static void create_fdt_reset(RISCVVirtState *s, const MemMapEntry *memmap, 878 uint32_t *phandle) 879 { 880 char *name; 881 uint32_t test_phandle; 882 MachineState *ms = MACHINE(s); 883 884 test_phandle = (*phandle)++; 885 name = g_strdup_printf("/soc/test@%lx", 886 (long)memmap[VIRT_TEST].base); 887 qemu_fdt_add_subnode(ms->fdt, name); 888 { 889 static const char * const compat[3] = { 890 "sifive,test1", "sifive,test0", "syscon" 891 }; 892 qemu_fdt_setprop_string_array(ms->fdt, name, "compatible", 893 (char **)&compat, ARRAY_SIZE(compat)); 894 } 895 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 896 0x0, memmap[VIRT_TEST].base, 0x0, memmap[VIRT_TEST].size); 897 qemu_fdt_setprop_cell(ms->fdt, name, "phandle", test_phandle); 898 test_phandle = qemu_fdt_get_phandle(ms->fdt, name); 899 g_free(name); 900 901 name = g_strdup_printf("/reboot"); 902 qemu_fdt_add_subnode(ms->fdt, name); 903 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-reboot"); 904 qemu_fdt_setprop_cell(ms->fdt, name, "regmap", test_phandle); 905 qemu_fdt_setprop_cell(ms->fdt, name, "offset", 0x0); 906 qemu_fdt_setprop_cell(ms->fdt, name, "value", FINISHER_RESET); 907 g_free(name); 908 909 name = g_strdup_printf("/poweroff"); 910 qemu_fdt_add_subnode(ms->fdt, name); 911 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-poweroff"); 912 qemu_fdt_setprop_cell(ms->fdt, name, "regmap", test_phandle); 913 qemu_fdt_setprop_cell(ms->fdt, name, "offset", 0x0); 914 qemu_fdt_setprop_cell(ms->fdt, name, "value", FINISHER_PASS); 915 g_free(name); 916 } 917 918 static void create_fdt_uart(RISCVVirtState *s, const MemMapEntry *memmap, 919 uint32_t irq_mmio_phandle) 920 { 921 g_autofree char *name = NULL; 922 MachineState *ms = MACHINE(s); 923 924 name = g_strdup_printf("/soc/serial@%lx", (long)memmap[VIRT_UART0].base); 925 qemu_fdt_add_subnode(ms->fdt, name); 926 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "ns16550a"); 927 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 928 0x0, memmap[VIRT_UART0].base, 929 0x0, memmap[VIRT_UART0].size); 930 qemu_fdt_setprop_cell(ms->fdt, name, "clock-frequency", 3686400); 931 qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_mmio_phandle); 932 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 933 qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", UART0_IRQ); 934 } else { 935 qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", UART0_IRQ, 0x4); 936 } 937 938 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", name); 939 } 940 941 static void create_fdt_rtc(RISCVVirtState *s, const MemMapEntry *memmap, 942 uint32_t irq_mmio_phandle) 943 { 944 g_autofree char *name = NULL; 945 MachineState *ms = MACHINE(s); 946 947 name = g_strdup_printf("/soc/rtc@%lx", (long)memmap[VIRT_RTC].base); 948 qemu_fdt_add_subnode(ms->fdt, name); 949 qemu_fdt_setprop_string(ms->fdt, name, "compatible", 950 "google,goldfish-rtc"); 951 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 952 0x0, memmap[VIRT_RTC].base, 0x0, memmap[VIRT_RTC].size); 953 qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", 954 irq_mmio_phandle); 955 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 956 qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", RTC_IRQ); 957 } else { 958 qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", RTC_IRQ, 0x4); 959 } 960 } 961 962 static void create_fdt_flash(RISCVVirtState *s, const MemMapEntry *memmap) 963 { 964 MachineState *ms = MACHINE(s); 965 hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2; 966 hwaddr flashbase = virt_memmap[VIRT_FLASH].base; 967 g_autofree char *name = g_strdup_printf("/flash@%" PRIx64, flashbase); 968 969 qemu_fdt_add_subnode(ms->fdt, name); 970 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "cfi-flash"); 971 qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg", 972 2, flashbase, 2, flashsize, 973 2, flashbase + flashsize, 2, flashsize); 974 qemu_fdt_setprop_cell(ms->fdt, name, "bank-width", 4); 975 } 976 977 static void create_fdt_fw_cfg(RISCVVirtState *s, const MemMapEntry *memmap) 978 { 979 MachineState *ms = MACHINE(s); 980 hwaddr base = memmap[VIRT_FW_CFG].base; 981 hwaddr size = memmap[VIRT_FW_CFG].size; 982 g_autofree char *nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base); 983 984 qemu_fdt_add_subnode(ms->fdt, nodename); 985 qemu_fdt_setprop_string(ms->fdt, nodename, 986 "compatible", "qemu,fw-cfg-mmio"); 987 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 988 2, base, 2, size); 989 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 990 } 991 992 static void create_fdt_virtio_iommu(RISCVVirtState *s, uint16_t bdf) 993 { 994 const char compat[] = "virtio,pci-iommu\0pci1af4,1057"; 995 void *fdt = MACHINE(s)->fdt; 996 uint32_t iommu_phandle; 997 g_autofree char *iommu_node = NULL; 998 g_autofree char *pci_node = NULL; 999 1000 pci_node = g_strdup_printf("/soc/pci@%lx", 1001 (long) virt_memmap[VIRT_PCIE_ECAM].base); 1002 iommu_node = g_strdup_printf("%s/virtio_iommu@%x,%x", pci_node, 1003 PCI_SLOT(bdf), PCI_FUNC(bdf)); 1004 iommu_phandle = qemu_fdt_alloc_phandle(fdt); 1005 1006 qemu_fdt_add_subnode(fdt, iommu_node); 1007 1008 qemu_fdt_setprop(fdt, iommu_node, "compatible", compat, sizeof(compat)); 1009 qemu_fdt_setprop_sized_cells(fdt, iommu_node, "reg", 1010 1, bdf << 8, 1, 0, 1, 0, 1011 1, 0, 1, 0); 1012 qemu_fdt_setprop_cell(fdt, iommu_node, "#iommu-cells", 1); 1013 qemu_fdt_setprop_cell(fdt, iommu_node, "phandle", iommu_phandle); 1014 1015 qemu_fdt_setprop_cells(fdt, pci_node, "iommu-map", 1016 0, iommu_phandle, 0, bdf, 1017 bdf + 1, iommu_phandle, bdf + 1, 0xffff - bdf); 1018 } 1019 1020 static void finalize_fdt(RISCVVirtState *s) 1021 { 1022 uint32_t phandle = 1, irq_mmio_phandle = 1, msi_pcie_phandle = 1; 1023 uint32_t irq_pcie_phandle = 1, irq_virtio_phandle = 1; 1024 1025 create_fdt_sockets(s, virt_memmap, &phandle, &irq_mmio_phandle, 1026 &irq_pcie_phandle, &irq_virtio_phandle, 1027 &msi_pcie_phandle); 1028 1029 create_fdt_virtio(s, virt_memmap, irq_virtio_phandle); 1030 1031 create_fdt_pcie(s, virt_memmap, irq_pcie_phandle, msi_pcie_phandle); 1032 1033 create_fdt_reset(s, virt_memmap, &phandle); 1034 1035 create_fdt_uart(s, virt_memmap, irq_mmio_phandle); 1036 1037 create_fdt_rtc(s, virt_memmap, irq_mmio_phandle); 1038 } 1039 1040 static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap) 1041 { 1042 MachineState *ms = MACHINE(s); 1043 uint8_t rng_seed[32]; 1044 g_autofree char *name = NULL; 1045 1046 ms->fdt = create_device_tree(&s->fdt_size); 1047 if (!ms->fdt) { 1048 error_report("create_device_tree() failed"); 1049 exit(1); 1050 } 1051 1052 qemu_fdt_setprop_string(ms->fdt, "/", "model", "riscv-virtio,qemu"); 1053 qemu_fdt_setprop_string(ms->fdt, "/", "compatible", "riscv-virtio"); 1054 qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); 1055 qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); 1056 1057 qemu_fdt_add_subnode(ms->fdt, "/soc"); 1058 qemu_fdt_setprop(ms->fdt, "/soc", "ranges", NULL, 0); 1059 qemu_fdt_setprop_string(ms->fdt, "/soc", "compatible", "simple-bus"); 1060 qemu_fdt_setprop_cell(ms->fdt, "/soc", "#size-cells", 0x2); 1061 qemu_fdt_setprop_cell(ms->fdt, "/soc", "#address-cells", 0x2); 1062 1063 /* 1064 * The "/soc/pci@..." node is needed for PCIE hotplugs 1065 * that might happen before finalize_fdt(). 1066 */ 1067 name = g_strdup_printf("/soc/pci@%lx", (long) memmap[VIRT_PCIE_ECAM].base); 1068 qemu_fdt_add_subnode(ms->fdt, name); 1069 1070 qemu_fdt_add_subnode(ms->fdt, "/chosen"); 1071 1072 /* Pass seed to RNG */ 1073 qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); 1074 qemu_fdt_setprop(ms->fdt, "/chosen", "rng-seed", 1075 rng_seed, sizeof(rng_seed)); 1076 1077 create_fdt_flash(s, memmap); 1078 create_fdt_fw_cfg(s, memmap); 1079 create_fdt_pmu(s); 1080 } 1081 1082 static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem, 1083 DeviceState *irqchip, 1084 RISCVVirtState *s) 1085 { 1086 DeviceState *dev; 1087 MemoryRegion *ecam_alias, *ecam_reg; 1088 MemoryRegion *mmio_alias, *high_mmio_alias, *mmio_reg; 1089 hwaddr ecam_base = s->memmap[VIRT_PCIE_ECAM].base; 1090 hwaddr ecam_size = s->memmap[VIRT_PCIE_ECAM].size; 1091 hwaddr mmio_base = s->memmap[VIRT_PCIE_MMIO].base; 1092 hwaddr mmio_size = s->memmap[VIRT_PCIE_MMIO].size; 1093 hwaddr high_mmio_base = virt_high_pcie_memmap.base; 1094 hwaddr high_mmio_size = virt_high_pcie_memmap.size; 1095 hwaddr pio_base = s->memmap[VIRT_PCIE_PIO].base; 1096 hwaddr pio_size = s->memmap[VIRT_PCIE_PIO].size; 1097 qemu_irq irq; 1098 int i; 1099 1100 dev = qdev_new(TYPE_GPEX_HOST); 1101 1102 /* Set GPEX object properties for the virt machine */ 1103 object_property_set_uint(OBJECT(GPEX_HOST(dev)), PCI_HOST_ECAM_BASE, 1104 ecam_base, NULL); 1105 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_ECAM_SIZE, 1106 ecam_size, NULL); 1107 object_property_set_uint(OBJECT(GPEX_HOST(dev)), 1108 PCI_HOST_BELOW_4G_MMIO_BASE, 1109 mmio_base, NULL); 1110 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_BELOW_4G_MMIO_SIZE, 1111 mmio_size, NULL); 1112 object_property_set_uint(OBJECT(GPEX_HOST(dev)), 1113 PCI_HOST_ABOVE_4G_MMIO_BASE, 1114 high_mmio_base, NULL); 1115 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_ABOVE_4G_MMIO_SIZE, 1116 high_mmio_size, NULL); 1117 object_property_set_uint(OBJECT(GPEX_HOST(dev)), PCI_HOST_PIO_BASE, 1118 pio_base, NULL); 1119 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_PIO_SIZE, 1120 pio_size, NULL); 1121 1122 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1123 1124 ecam_alias = g_new0(MemoryRegion, 1); 1125 ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); 1126 memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", 1127 ecam_reg, 0, ecam_size); 1128 memory_region_add_subregion(get_system_memory(), ecam_base, ecam_alias); 1129 1130 mmio_alias = g_new0(MemoryRegion, 1); 1131 mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); 1132 memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", 1133 mmio_reg, mmio_base, mmio_size); 1134 memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias); 1135 1136 /* Map high MMIO space */ 1137 high_mmio_alias = g_new0(MemoryRegion, 1); 1138 memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", 1139 mmio_reg, high_mmio_base, high_mmio_size); 1140 memory_region_add_subregion(get_system_memory(), high_mmio_base, 1141 high_mmio_alias); 1142 1143 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base); 1144 1145 for (i = 0; i < GPEX_NUM_IRQS; i++) { 1146 irq = qdev_get_gpio_in(irqchip, PCIE_IRQ + i); 1147 1148 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); 1149 gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ + i); 1150 } 1151 1152 GPEX_HOST(dev)->gpex_cfg.bus = PCI_HOST_BRIDGE(GPEX_HOST(dev))->bus; 1153 return dev; 1154 } 1155 1156 static FWCfgState *create_fw_cfg(const MachineState *ms) 1157 { 1158 hwaddr base = virt_memmap[VIRT_FW_CFG].base; 1159 FWCfgState *fw_cfg; 1160 1161 fw_cfg = fw_cfg_init_mem_wide(base + 8, base, 8, base + 16, 1162 &address_space_memory); 1163 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus); 1164 1165 return fw_cfg; 1166 } 1167 1168 static DeviceState *virt_create_plic(const MemMapEntry *memmap, int socket, 1169 int base_hartid, int hart_count) 1170 { 1171 DeviceState *ret; 1172 g_autofree char *plic_hart_config = NULL; 1173 1174 /* Per-socket PLIC hart topology configuration string */ 1175 plic_hart_config = riscv_plic_hart_config_string(hart_count); 1176 1177 /* Per-socket PLIC */ 1178 ret = sifive_plic_create( 1179 memmap[VIRT_PLIC].base + socket * memmap[VIRT_PLIC].size, 1180 plic_hart_config, hart_count, base_hartid, 1181 VIRT_IRQCHIP_NUM_SOURCES, 1182 ((1U << VIRT_IRQCHIP_NUM_PRIO_BITS) - 1), 1183 VIRT_PLIC_PRIORITY_BASE, 1184 VIRT_PLIC_PENDING_BASE, 1185 VIRT_PLIC_ENABLE_BASE, 1186 VIRT_PLIC_ENABLE_STRIDE, 1187 VIRT_PLIC_CONTEXT_BASE, 1188 VIRT_PLIC_CONTEXT_STRIDE, 1189 memmap[VIRT_PLIC].size); 1190 1191 return ret; 1192 } 1193 1194 static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, 1195 const MemMapEntry *memmap, int socket, 1196 int base_hartid, int hart_count) 1197 { 1198 int i; 1199 hwaddr addr; 1200 uint32_t guest_bits; 1201 DeviceState *aplic_s = NULL; 1202 DeviceState *aplic_m = NULL; 1203 bool msimode = aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; 1204 1205 if (msimode) { 1206 if (!kvm_enabled()) { 1207 /* Per-socket M-level IMSICs */ 1208 addr = memmap[VIRT_IMSIC_M].base + 1209 socket * VIRT_IMSIC_GROUP_MAX_SIZE; 1210 for (i = 0; i < hart_count; i++) { 1211 riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), 1212 base_hartid + i, true, 1, 1213 VIRT_IRQCHIP_NUM_MSIS); 1214 } 1215 } 1216 1217 /* Per-socket S-level IMSICs */ 1218 guest_bits = imsic_num_bits(aia_guests + 1); 1219 addr = memmap[VIRT_IMSIC_S].base + socket * VIRT_IMSIC_GROUP_MAX_SIZE; 1220 for (i = 0; i < hart_count; i++) { 1221 riscv_imsic_create(addr + i * IMSIC_HART_SIZE(guest_bits), 1222 base_hartid + i, false, 1 + aia_guests, 1223 VIRT_IRQCHIP_NUM_MSIS); 1224 } 1225 } 1226 1227 if (!kvm_enabled()) { 1228 /* Per-socket M-level APLIC */ 1229 aplic_m = riscv_aplic_create(memmap[VIRT_APLIC_M].base + 1230 socket * memmap[VIRT_APLIC_M].size, 1231 memmap[VIRT_APLIC_M].size, 1232 (msimode) ? 0 : base_hartid, 1233 (msimode) ? 0 : hart_count, 1234 VIRT_IRQCHIP_NUM_SOURCES, 1235 VIRT_IRQCHIP_NUM_PRIO_BITS, 1236 msimode, true, NULL); 1237 } 1238 1239 /* Per-socket S-level APLIC */ 1240 aplic_s = riscv_aplic_create(memmap[VIRT_APLIC_S].base + 1241 socket * memmap[VIRT_APLIC_S].size, 1242 memmap[VIRT_APLIC_S].size, 1243 (msimode) ? 0 : base_hartid, 1244 (msimode) ? 0 : hart_count, 1245 VIRT_IRQCHIP_NUM_SOURCES, 1246 VIRT_IRQCHIP_NUM_PRIO_BITS, 1247 msimode, false, aplic_m); 1248 1249 return kvm_enabled() ? aplic_s : aplic_m; 1250 } 1251 1252 static void create_platform_bus(RISCVVirtState *s, DeviceState *irqchip) 1253 { 1254 DeviceState *dev; 1255 SysBusDevice *sysbus; 1256 const MemMapEntry *memmap = virt_memmap; 1257 int i; 1258 MemoryRegion *sysmem = get_system_memory(); 1259 1260 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); 1261 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); 1262 qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS); 1263 qdev_prop_set_uint32(dev, "mmio_size", memmap[VIRT_PLATFORM_BUS].size); 1264 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1265 s->platform_bus_dev = dev; 1266 1267 sysbus = SYS_BUS_DEVICE(dev); 1268 for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) { 1269 int irq = VIRT_PLATFORM_BUS_IRQ + i; 1270 sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(irqchip, irq)); 1271 } 1272 1273 memory_region_add_subregion(sysmem, 1274 memmap[VIRT_PLATFORM_BUS].base, 1275 sysbus_mmio_get_region(sysbus, 0)); 1276 } 1277 1278 static void virt_build_smbios(RISCVVirtState *s) 1279 { 1280 MachineClass *mc = MACHINE_GET_CLASS(s); 1281 MachineState *ms = MACHINE(s); 1282 uint8_t *smbios_tables, *smbios_anchor; 1283 size_t smbios_tables_len, smbios_anchor_len; 1284 struct smbios_phys_mem_area mem_array; 1285 const char *product = "QEMU Virtual Machine"; 1286 1287 if (kvm_enabled()) { 1288 product = "KVM Virtual Machine"; 1289 } 1290 1291 smbios_set_defaults("QEMU", product, mc->name); 1292 1293 if (riscv_is_32bit(&s->soc[0])) { 1294 smbios_set_default_processor_family(0x200); 1295 } else { 1296 smbios_set_default_processor_family(0x201); 1297 } 1298 1299 /* build the array of physical mem area from base_memmap */ 1300 mem_array.address = s->memmap[VIRT_DRAM].base; 1301 mem_array.length = ms->ram_size; 1302 1303 smbios_get_tables(ms, SMBIOS_ENTRY_POINT_TYPE_64, 1304 &mem_array, 1, 1305 &smbios_tables, &smbios_tables_len, 1306 &smbios_anchor, &smbios_anchor_len, 1307 &error_fatal); 1308 1309 if (smbios_anchor) { 1310 fw_cfg_add_file(s->fw_cfg, "etc/smbios/smbios-tables", 1311 smbios_tables, smbios_tables_len); 1312 fw_cfg_add_file(s->fw_cfg, "etc/smbios/smbios-anchor", 1313 smbios_anchor, smbios_anchor_len); 1314 } 1315 } 1316 1317 static void virt_machine_done(Notifier *notifier, void *data) 1318 { 1319 RISCVVirtState *s = container_of(notifier, RISCVVirtState, 1320 machine_done); 1321 const MemMapEntry *memmap = virt_memmap; 1322 MachineState *machine = MACHINE(s); 1323 target_ulong start_addr = memmap[VIRT_DRAM].base; 1324 target_ulong firmware_end_addr, kernel_start_addr; 1325 const char *firmware_name = riscv_default_firmware_name(&s->soc[0]); 1326 uint64_t fdt_load_addr; 1327 uint64_t kernel_entry = 0; 1328 BlockBackend *pflash_blk0; 1329 1330 /* 1331 * An user provided dtb must include everything, including 1332 * dynamic sysbus devices. Our FDT needs to be finalized. 1333 */ 1334 if (machine->dtb == NULL) { 1335 finalize_fdt(s); 1336 } 1337 1338 /* 1339 * Only direct boot kernel is currently supported for KVM VM, 1340 * so the "-bios" parameter is not supported when KVM is enabled. 1341 */ 1342 if (kvm_enabled()) { 1343 if (machine->firmware) { 1344 if (strcmp(machine->firmware, "none")) { 1345 error_report("Machine mode firmware is not supported in " 1346 "combination with KVM."); 1347 exit(1); 1348 } 1349 } else { 1350 machine->firmware = g_strdup("none"); 1351 } 1352 } 1353 1354 firmware_end_addr = riscv_find_and_load_firmware(machine, firmware_name, 1355 start_addr, NULL); 1356 1357 pflash_blk0 = pflash_cfi01_get_blk(s->flash[0]); 1358 if (pflash_blk0) { 1359 if (machine->firmware && !strcmp(machine->firmware, "none") && 1360 !kvm_enabled()) { 1361 /* 1362 * Pflash was supplied but bios is none and not KVM guest, 1363 * let's overwrite the address we jump to after reset to 1364 * the base of the flash. 1365 */ 1366 start_addr = virt_memmap[VIRT_FLASH].base; 1367 } else { 1368 /* 1369 * Pflash was supplied but either KVM guest or bios is not none. 1370 * In this case, base of the flash would contain S-mode payload. 1371 */ 1372 riscv_setup_firmware_boot(machine); 1373 kernel_entry = virt_memmap[VIRT_FLASH].base; 1374 } 1375 } 1376 1377 if (machine->kernel_filename && !kernel_entry) { 1378 kernel_start_addr = riscv_calc_kernel_start_addr(&s->soc[0], 1379 firmware_end_addr); 1380 1381 kernel_entry = riscv_load_kernel(machine, &s->soc[0], 1382 kernel_start_addr, true, NULL); 1383 } 1384 1385 fdt_load_addr = riscv_compute_fdt_addr(memmap[VIRT_DRAM].base, 1386 memmap[VIRT_DRAM].size, 1387 machine); 1388 riscv_load_fdt(fdt_load_addr, machine->fdt); 1389 1390 /* load the reset vector */ 1391 riscv_setup_rom_reset_vec(machine, &s->soc[0], start_addr, 1392 virt_memmap[VIRT_MROM].base, 1393 virt_memmap[VIRT_MROM].size, kernel_entry, 1394 fdt_load_addr); 1395 1396 /* 1397 * Only direct boot kernel is currently supported for KVM VM, 1398 * So here setup kernel start address and fdt address. 1399 * TODO:Support firmware loading and integrate to TCG start 1400 */ 1401 if (kvm_enabled()) { 1402 riscv_setup_direct_kernel(kernel_entry, fdt_load_addr); 1403 } 1404 1405 virt_build_smbios(s); 1406 1407 if (virt_is_acpi_enabled(s)) { 1408 virt_acpi_setup(s); 1409 } 1410 } 1411 1412 static void virt_machine_init(MachineState *machine) 1413 { 1414 const MemMapEntry *memmap = virt_memmap; 1415 RISCVVirtState *s = RISCV_VIRT_MACHINE(machine); 1416 MemoryRegion *system_memory = get_system_memory(); 1417 MemoryRegion *mask_rom = g_new(MemoryRegion, 1); 1418 DeviceState *mmio_irqchip, *virtio_irqchip, *pcie_irqchip; 1419 int i, base_hartid, hart_count; 1420 int socket_count = riscv_socket_count(machine); 1421 1422 /* Check socket count limit */ 1423 if (VIRT_SOCKETS_MAX < socket_count) { 1424 error_report("number of sockets/nodes should be less than %d", 1425 VIRT_SOCKETS_MAX); 1426 exit(1); 1427 } 1428 1429 if (!virt_aclint_allowed() && s->have_aclint) { 1430 error_report("'aclint' is only available with TCG acceleration"); 1431 exit(1); 1432 } 1433 1434 /* Initialize sockets */ 1435 mmio_irqchip = virtio_irqchip = pcie_irqchip = NULL; 1436 for (i = 0; i < socket_count; i++) { 1437 g_autofree char *soc_name = g_strdup_printf("soc%d", i); 1438 1439 if (!riscv_socket_check_hartids(machine, i)) { 1440 error_report("discontinuous hartids in socket%d", i); 1441 exit(1); 1442 } 1443 1444 base_hartid = riscv_socket_first_hartid(machine, i); 1445 if (base_hartid < 0) { 1446 error_report("can't find hartid base for socket%d", i); 1447 exit(1); 1448 } 1449 1450 hart_count = riscv_socket_hart_count(machine, i); 1451 if (hart_count < 0) { 1452 error_report("can't find hart count for socket%d", i); 1453 exit(1); 1454 } 1455 1456 object_initialize_child(OBJECT(machine), soc_name, &s->soc[i], 1457 TYPE_RISCV_HART_ARRAY); 1458 object_property_set_str(OBJECT(&s->soc[i]), "cpu-type", 1459 machine->cpu_type, &error_abort); 1460 object_property_set_int(OBJECT(&s->soc[i]), "hartid-base", 1461 base_hartid, &error_abort); 1462 object_property_set_int(OBJECT(&s->soc[i]), "num-harts", 1463 hart_count, &error_abort); 1464 sysbus_realize(SYS_BUS_DEVICE(&s->soc[i]), &error_fatal); 1465 1466 if (virt_aclint_allowed() && s->have_aclint) { 1467 if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { 1468 /* Per-socket ACLINT MTIMER */ 1469 riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + 1470 i * RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 1471 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 1472 base_hartid, hart_count, 1473 RISCV_ACLINT_DEFAULT_MTIMECMP, 1474 RISCV_ACLINT_DEFAULT_MTIME, 1475 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); 1476 } else { 1477 /* Per-socket ACLINT MSWI, MTIMER, and SSWI */ 1478 riscv_aclint_swi_create(memmap[VIRT_CLINT].base + 1479 i * memmap[VIRT_CLINT].size, 1480 base_hartid, hart_count, false); 1481 riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + 1482 i * memmap[VIRT_CLINT].size + 1483 RISCV_ACLINT_SWI_SIZE, 1484 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 1485 base_hartid, hart_count, 1486 RISCV_ACLINT_DEFAULT_MTIMECMP, 1487 RISCV_ACLINT_DEFAULT_MTIME, 1488 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); 1489 riscv_aclint_swi_create(memmap[VIRT_ACLINT_SSWI].base + 1490 i * memmap[VIRT_ACLINT_SSWI].size, 1491 base_hartid, hart_count, true); 1492 } 1493 } else if (tcg_enabled()) { 1494 /* Per-socket SiFive CLINT */ 1495 riscv_aclint_swi_create( 1496 memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size, 1497 base_hartid, hart_count, false); 1498 riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + 1499 i * memmap[VIRT_CLINT].size + RISCV_ACLINT_SWI_SIZE, 1500 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, base_hartid, hart_count, 1501 RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, 1502 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); 1503 } 1504 1505 /* Per-socket interrupt controller */ 1506 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 1507 s->irqchip[i] = virt_create_plic(memmap, i, 1508 base_hartid, hart_count); 1509 } else { 1510 s->irqchip[i] = virt_create_aia(s->aia_type, s->aia_guests, 1511 memmap, i, base_hartid, 1512 hart_count); 1513 } 1514 1515 /* Try to use different IRQCHIP instance based device type */ 1516 if (i == 0) { 1517 mmio_irqchip = s->irqchip[i]; 1518 virtio_irqchip = s->irqchip[i]; 1519 pcie_irqchip = s->irqchip[i]; 1520 } 1521 if (i == 1) { 1522 virtio_irqchip = s->irqchip[i]; 1523 pcie_irqchip = s->irqchip[i]; 1524 } 1525 if (i == 2) { 1526 pcie_irqchip = s->irqchip[i]; 1527 } 1528 } 1529 1530 if (kvm_enabled() && virt_use_kvm_aia(s)) { 1531 kvm_riscv_aia_create(machine, IMSIC_MMIO_GROUP_MIN_SHIFT, 1532 VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_MSIS, 1533 memmap[VIRT_APLIC_S].base, 1534 memmap[VIRT_IMSIC_S].base, 1535 s->aia_guests); 1536 } 1537 1538 if (riscv_is_32bit(&s->soc[0])) { 1539 #if HOST_LONG_BITS == 64 1540 /* limit RAM size in a 32-bit system */ 1541 if (machine->ram_size > 10 * GiB) { 1542 machine->ram_size = 10 * GiB; 1543 error_report("Limiting RAM size to 10 GiB"); 1544 } 1545 #endif 1546 virt_high_pcie_memmap.base = VIRT32_HIGH_PCIE_MMIO_BASE; 1547 virt_high_pcie_memmap.size = VIRT32_HIGH_PCIE_MMIO_SIZE; 1548 } else { 1549 virt_high_pcie_memmap.size = VIRT64_HIGH_PCIE_MMIO_SIZE; 1550 virt_high_pcie_memmap.base = memmap[VIRT_DRAM].base + machine->ram_size; 1551 virt_high_pcie_memmap.base = 1552 ROUND_UP(virt_high_pcie_memmap.base, virt_high_pcie_memmap.size); 1553 } 1554 1555 s->memmap = virt_memmap; 1556 1557 /* register system main memory (actual RAM) */ 1558 memory_region_add_subregion(system_memory, memmap[VIRT_DRAM].base, 1559 machine->ram); 1560 1561 /* boot rom */ 1562 memory_region_init_rom(mask_rom, NULL, "riscv_virt_board.mrom", 1563 memmap[VIRT_MROM].size, &error_fatal); 1564 memory_region_add_subregion(system_memory, memmap[VIRT_MROM].base, 1565 mask_rom); 1566 1567 /* 1568 * Init fw_cfg. Must be done before riscv_load_fdt, otherwise the 1569 * device tree cannot be altered and we get FDT_ERR_NOSPACE. 1570 */ 1571 s->fw_cfg = create_fw_cfg(machine); 1572 rom_set_fw(s->fw_cfg); 1573 1574 /* SiFive Test MMIO device */ 1575 sifive_test_create(memmap[VIRT_TEST].base); 1576 1577 /* VirtIO MMIO devices */ 1578 for (i = 0; i < VIRTIO_COUNT; i++) { 1579 sysbus_create_simple("virtio-mmio", 1580 memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 1581 qdev_get_gpio_in(virtio_irqchip, VIRTIO_IRQ + i)); 1582 } 1583 1584 gpex_pcie_init(system_memory, pcie_irqchip, s); 1585 1586 create_platform_bus(s, mmio_irqchip); 1587 1588 serial_mm_init(system_memory, memmap[VIRT_UART0].base, 1589 0, qdev_get_gpio_in(mmio_irqchip, UART0_IRQ), 399193, 1590 serial_hd(0), DEVICE_LITTLE_ENDIAN); 1591 1592 sysbus_create_simple("goldfish_rtc", memmap[VIRT_RTC].base, 1593 qdev_get_gpio_in(mmio_irqchip, RTC_IRQ)); 1594 1595 for (i = 0; i < ARRAY_SIZE(s->flash); i++) { 1596 /* Map legacy -drive if=pflash to machine properties */ 1597 pflash_cfi01_legacy_drive(s->flash[i], 1598 drive_get(IF_PFLASH, 0, i)); 1599 } 1600 virt_flash_map(s, system_memory); 1601 1602 /* load/create device tree */ 1603 if (machine->dtb) { 1604 machine->fdt = load_device_tree(machine->dtb, &s->fdt_size); 1605 if (!machine->fdt) { 1606 error_report("load_device_tree() failed"); 1607 exit(1); 1608 } 1609 } else { 1610 create_fdt(s, memmap); 1611 } 1612 1613 s->machine_done.notify = virt_machine_done; 1614 qemu_add_machine_init_done_notifier(&s->machine_done); 1615 } 1616 1617 static void virt_machine_instance_init(Object *obj) 1618 { 1619 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1620 1621 virt_flash_create(s); 1622 1623 s->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); 1624 s->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); 1625 s->acpi = ON_OFF_AUTO_AUTO; 1626 } 1627 1628 static char *virt_get_aia_guests(Object *obj, Error **errp) 1629 { 1630 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1631 1632 return g_strdup_printf("%d", s->aia_guests); 1633 } 1634 1635 static void virt_set_aia_guests(Object *obj, const char *val, Error **errp) 1636 { 1637 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1638 1639 s->aia_guests = atoi(val); 1640 if (s->aia_guests < 0 || s->aia_guests > VIRT_IRQCHIP_MAX_GUESTS) { 1641 error_setg(errp, "Invalid number of AIA IMSIC guests"); 1642 error_append_hint(errp, "Valid values be between 0 and %d.\n", 1643 VIRT_IRQCHIP_MAX_GUESTS); 1644 } 1645 } 1646 1647 static char *virt_get_aia(Object *obj, Error **errp) 1648 { 1649 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1650 const char *val; 1651 1652 switch (s->aia_type) { 1653 case VIRT_AIA_TYPE_APLIC: 1654 val = "aplic"; 1655 break; 1656 case VIRT_AIA_TYPE_APLIC_IMSIC: 1657 val = "aplic-imsic"; 1658 break; 1659 default: 1660 val = "none"; 1661 break; 1662 }; 1663 1664 return g_strdup(val); 1665 } 1666 1667 static void virt_set_aia(Object *obj, const char *val, Error **errp) 1668 { 1669 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1670 1671 if (!strcmp(val, "none")) { 1672 s->aia_type = VIRT_AIA_TYPE_NONE; 1673 } else if (!strcmp(val, "aplic")) { 1674 s->aia_type = VIRT_AIA_TYPE_APLIC; 1675 } else if (!strcmp(val, "aplic-imsic")) { 1676 s->aia_type = VIRT_AIA_TYPE_APLIC_IMSIC; 1677 } else { 1678 error_setg(errp, "Invalid AIA interrupt controller type"); 1679 error_append_hint(errp, "Valid values are none, aplic, and " 1680 "aplic-imsic.\n"); 1681 } 1682 } 1683 1684 static bool virt_get_aclint(Object *obj, Error **errp) 1685 { 1686 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1687 1688 return s->have_aclint; 1689 } 1690 1691 static void virt_set_aclint(Object *obj, bool value, Error **errp) 1692 { 1693 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1694 1695 s->have_aclint = value; 1696 } 1697 1698 bool virt_is_acpi_enabled(RISCVVirtState *s) 1699 { 1700 return s->acpi != ON_OFF_AUTO_OFF; 1701 } 1702 1703 static void virt_get_acpi(Object *obj, Visitor *v, const char *name, 1704 void *opaque, Error **errp) 1705 { 1706 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1707 OnOffAuto acpi = s->acpi; 1708 1709 visit_type_OnOffAuto(v, name, &acpi, errp); 1710 } 1711 1712 static void virt_set_acpi(Object *obj, Visitor *v, const char *name, 1713 void *opaque, Error **errp) 1714 { 1715 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1716 1717 visit_type_OnOffAuto(v, name, &s->acpi, errp); 1718 } 1719 1720 static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, 1721 DeviceState *dev) 1722 { 1723 MachineClass *mc = MACHINE_GET_CLASS(machine); 1724 1725 if (device_is_dynamic_sysbus(mc, dev) || 1726 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 1727 return HOTPLUG_HANDLER(machine); 1728 } 1729 return NULL; 1730 } 1731 1732 static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, 1733 DeviceState *dev, Error **errp) 1734 { 1735 RISCVVirtState *s = RISCV_VIRT_MACHINE(hotplug_dev); 1736 1737 if (s->platform_bus_dev) { 1738 MachineClass *mc = MACHINE_GET_CLASS(s); 1739 1740 if (device_is_dynamic_sysbus(mc, dev)) { 1741 platform_bus_link_device(PLATFORM_BUS_DEVICE(s->platform_bus_dev), 1742 SYS_BUS_DEVICE(dev)); 1743 } 1744 } 1745 1746 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 1747 create_fdt_virtio_iommu(s, pci_get_bdf(PCI_DEVICE(dev))); 1748 } 1749 } 1750 1751 static void virt_machine_class_init(ObjectClass *oc, void *data) 1752 { 1753 MachineClass *mc = MACHINE_CLASS(oc); 1754 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 1755 1756 mc->desc = "RISC-V VirtIO board"; 1757 mc->init = virt_machine_init; 1758 mc->max_cpus = VIRT_CPUS_MAX; 1759 mc->default_cpu_type = TYPE_RISCV_CPU_BASE; 1760 mc->pci_allow_0_address = true; 1761 mc->possible_cpu_arch_ids = riscv_numa_possible_cpu_arch_ids; 1762 mc->cpu_index_to_instance_props = riscv_numa_cpu_index_to_props; 1763 mc->get_default_cpu_node_id = riscv_numa_get_default_cpu_node_id; 1764 mc->numa_mem_supported = true; 1765 /* platform instead of architectural choice */ 1766 mc->cpu_cluster_has_numa_boundary = true; 1767 mc->default_ram_id = "riscv_virt_board.ram"; 1768 assert(!mc->get_hotplug_handler); 1769 mc->get_hotplug_handler = virt_machine_get_hotplug_handler; 1770 1771 hc->plug = virt_machine_device_plug_cb; 1772 1773 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); 1774 #ifdef CONFIG_TPM 1775 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); 1776 #endif 1777 1778 object_class_property_add_bool(oc, "aclint", virt_get_aclint, 1779 virt_set_aclint); 1780 object_class_property_set_description(oc, "aclint", 1781 "(TCG only) Set on/off to " 1782 "enable/disable emulating " 1783 "ACLINT devices"); 1784 1785 object_class_property_add_str(oc, "aia", virt_get_aia, 1786 virt_set_aia); 1787 object_class_property_set_description(oc, "aia", 1788 "Set type of AIA interrupt " 1789 "controller. Valid values are " 1790 "none, aplic, and aplic-imsic."); 1791 1792 object_class_property_add_str(oc, "aia-guests", 1793 virt_get_aia_guests, 1794 virt_set_aia_guests); 1795 { 1796 g_autofree char *str = 1797 g_strdup_printf("Set number of guest MMIO pages for AIA IMSIC. " 1798 "Valid value should be between 0 and %d.", 1799 VIRT_IRQCHIP_MAX_GUESTS); 1800 object_class_property_set_description(oc, "aia-guests", str); 1801 } 1802 1803 object_class_property_add(oc, "acpi", "OnOffAuto", 1804 virt_get_acpi, virt_set_acpi, 1805 NULL, NULL); 1806 object_class_property_set_description(oc, "acpi", 1807 "Enable ACPI"); 1808 } 1809 1810 static const TypeInfo virt_machine_typeinfo = { 1811 .name = MACHINE_TYPE_NAME("virt"), 1812 .parent = TYPE_MACHINE, 1813 .class_init = virt_machine_class_init, 1814 .instance_init = virt_machine_instance_init, 1815 .instance_size = sizeof(RISCVVirtState), 1816 .interfaces = (InterfaceInfo[]) { 1817 { TYPE_HOTPLUG_HANDLER }, 1818 { } 1819 }, 1820 }; 1821 1822 static void virt_machine_init_register_types(void) 1823 { 1824 type_register_static(&virt_machine_typeinfo); 1825 } 1826 1827 type_init(virt_machine_init_register_types) 1828