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