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 static const char * const imsic_compat[2] = { 519 "qemu,imsics", "riscv,imsics" 520 }; 521 522 imsic_cells = g_new0(uint32_t, ms->smp.cpus * 2); 523 imsic_regs = g_new0(uint32_t, socket_count * 4); 524 525 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 526 imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 527 imsic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); 528 } 529 530 imsic_max_hart_per_socket = 0; 531 for (socket = 0; socket < socket_count; socket++) { 532 imsic_addr = base_addr + socket * VIRT_IMSIC_GROUP_MAX_SIZE; 533 imsic_size = IMSIC_HART_SIZE(imsic_guest_bits) * 534 s->soc[socket].num_harts; 535 imsic_regs[socket * 4 + 0] = 0; 536 imsic_regs[socket * 4 + 1] = cpu_to_be32(imsic_addr); 537 imsic_regs[socket * 4 + 2] = 0; 538 imsic_regs[socket * 4 + 3] = cpu_to_be32(imsic_size); 539 if (imsic_max_hart_per_socket < s->soc[socket].num_harts) { 540 imsic_max_hart_per_socket = s->soc[socket].num_harts; 541 } 542 } 543 544 imsic_name = g_strdup_printf("/soc/interrupt-controller@%lx", 545 (unsigned long)base_addr); 546 qemu_fdt_add_subnode(ms->fdt, imsic_name); 547 qemu_fdt_setprop_string_array(ms->fdt, imsic_name, "compatible", 548 (char **)&imsic_compat, 549 ARRAY_SIZE(imsic_compat)); 550 551 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", 552 FDT_IMSIC_INT_CELLS); 553 qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", NULL, 0); 554 qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", NULL, 0); 555 qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", 556 imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); 557 qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, 558 socket_count * sizeof(uint32_t) * 4); 559 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", 560 VIRT_IRQCHIP_NUM_MSIS); 561 562 if (imsic_guest_bits) { 563 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,guest-index-bits", 564 imsic_guest_bits); 565 } 566 567 if (socket_count > 1) { 568 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", 569 imsic_num_bits(imsic_max_hart_per_socket)); 570 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", 571 imsic_num_bits(socket_count)); 572 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", 573 IMSIC_MMIO_GROUP_MIN_SHIFT); 574 } 575 qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", msi_phandle); 576 } 577 578 static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, 579 uint32_t *phandle, uint32_t *intc_phandles, 580 uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) 581 { 582 *msi_m_phandle = (*phandle)++; 583 *msi_s_phandle = (*phandle)++; 584 585 if (!kvm_enabled()) { 586 /* M-level IMSIC node */ 587 create_fdt_one_imsic(s, memmap[VIRT_IMSIC_M].base, intc_phandles, 588 *msi_m_phandle, true, 0); 589 } 590 591 /* S-level IMSIC node */ 592 create_fdt_one_imsic(s, memmap[VIRT_IMSIC_S].base, intc_phandles, 593 *msi_s_phandle, false, 594 imsic_num_bits(s->aia_guests + 1)); 595 596 } 597 598 /* Caller must free string after use */ 599 static char *fdt_get_aplic_nodename(unsigned long aplic_addr) 600 { 601 return g_strdup_printf("/soc/interrupt-controller@%lx", aplic_addr); 602 } 603 604 static void create_fdt_one_aplic(RISCVVirtState *s, int socket, 605 unsigned long aplic_addr, uint32_t aplic_size, 606 uint32_t msi_phandle, 607 uint32_t *intc_phandles, 608 uint32_t aplic_phandle, 609 uint32_t aplic_child_phandle, 610 bool m_mode, int num_harts) 611 { 612 int cpu; 613 g_autofree char *aplic_name = fdt_get_aplic_nodename(aplic_addr); 614 g_autofree uint32_t *aplic_cells = g_new0(uint32_t, num_harts * 2); 615 MachineState *ms = MACHINE(s); 616 static const char * const aplic_compat[2] = { 617 "qemu,aplic", "riscv,aplic" 618 }; 619 620 for (cpu = 0; cpu < num_harts; cpu++) { 621 aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); 622 aplic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); 623 } 624 625 qemu_fdt_add_subnode(ms->fdt, aplic_name); 626 qemu_fdt_setprop_string_array(ms->fdt, aplic_name, "compatible", 627 (char **)&aplic_compat, 628 ARRAY_SIZE(aplic_compat)); 629 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "#address-cells", 630 FDT_APLIC_ADDR_CELLS); 631 qemu_fdt_setprop_cell(ms->fdt, aplic_name, 632 "#interrupt-cells", FDT_APLIC_INT_CELLS); 633 qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); 634 635 if (s->aia_type == VIRT_AIA_TYPE_APLIC) { 636 qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", 637 aplic_cells, num_harts * sizeof(uint32_t) * 2); 638 } else { 639 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", msi_phandle); 640 } 641 642 qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", 643 0x0, aplic_addr, 0x0, aplic_size); 644 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", 645 VIRT_IRQCHIP_NUM_SOURCES); 646 647 if (aplic_child_phandle) { 648 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", 649 aplic_child_phandle); 650 qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegation", 651 aplic_child_phandle, 0x1, 652 VIRT_IRQCHIP_NUM_SOURCES); 653 /* 654 * DEPRECATED_9.1: Compat property kept temporarily 655 * to allow old firmwares to work with AIA. Do *not* 656 * use 'riscv,delegate' in new code: use 657 * 'riscv,delegation' instead. 658 */ 659 qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegate", 660 aplic_child_phandle, 0x1, 661 VIRT_IRQCHIP_NUM_SOURCES); 662 } 663 664 riscv_socket_fdt_write_id(ms, aplic_name, socket); 665 qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_phandle); 666 } 667 668 static void create_fdt_socket_aplic(RISCVVirtState *s, 669 const MemMapEntry *memmap, int socket, 670 uint32_t msi_m_phandle, 671 uint32_t msi_s_phandle, 672 uint32_t *phandle, 673 uint32_t *intc_phandles, 674 uint32_t *aplic_phandles, 675 int num_harts) 676 { 677 unsigned long aplic_addr; 678 MachineState *ms = MACHINE(s); 679 uint32_t aplic_m_phandle, aplic_s_phandle; 680 681 aplic_m_phandle = (*phandle)++; 682 aplic_s_phandle = (*phandle)++; 683 684 if (!kvm_enabled()) { 685 /* M-level APLIC node */ 686 aplic_addr = memmap[VIRT_APLIC_M].base + 687 (memmap[VIRT_APLIC_M].size * socket); 688 create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_M].size, 689 msi_m_phandle, intc_phandles, 690 aplic_m_phandle, aplic_s_phandle, 691 true, num_harts); 692 } 693 694 /* S-level APLIC node */ 695 aplic_addr = memmap[VIRT_APLIC_S].base + 696 (memmap[VIRT_APLIC_S].size * socket); 697 create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_S].size, 698 msi_s_phandle, intc_phandles, 699 aplic_s_phandle, 0, 700 false, num_harts); 701 702 if (!socket) { 703 g_autofree char *aplic_name = fdt_get_aplic_nodename(aplic_addr); 704 platform_bus_add_all_fdt_nodes(ms->fdt, aplic_name, 705 memmap[VIRT_PLATFORM_BUS].base, 706 memmap[VIRT_PLATFORM_BUS].size, 707 VIRT_PLATFORM_BUS_IRQ); 708 } 709 710 aplic_phandles[socket] = aplic_s_phandle; 711 } 712 713 static void create_fdt_pmu(RISCVVirtState *s) 714 { 715 g_autofree char *pmu_name = g_strdup_printf("/pmu"); 716 MachineState *ms = MACHINE(s); 717 RISCVCPU hart = s->soc[0].harts[0]; 718 719 qemu_fdt_add_subnode(ms->fdt, pmu_name); 720 qemu_fdt_setprop_string(ms->fdt, pmu_name, "compatible", "riscv,pmu"); 721 riscv_pmu_generate_fdt_node(ms->fdt, hart.pmu_avail_ctrs, pmu_name); 722 } 723 724 static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, 725 uint32_t *phandle, 726 uint32_t *irq_mmio_phandle, 727 uint32_t *irq_pcie_phandle, 728 uint32_t *irq_virtio_phandle, 729 uint32_t *msi_pcie_phandle) 730 { 731 int socket, phandle_pos; 732 MachineState *ms = MACHINE(s); 733 uint32_t msi_m_phandle = 0, msi_s_phandle = 0; 734 uint32_t xplic_phandles[MAX_NODES]; 735 g_autofree uint32_t *intc_phandles = NULL; 736 int socket_count = riscv_socket_count(ms); 737 738 qemu_fdt_add_subnode(ms->fdt, "/cpus"); 739 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "timebase-frequency", 740 kvm_enabled() ? 741 kvm_riscv_get_timebase_frequency(first_cpu) : 742 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ); 743 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); 744 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", 0x1); 745 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); 746 747 intc_phandles = g_new0(uint32_t, ms->smp.cpus); 748 749 phandle_pos = ms->smp.cpus; 750 for (socket = (socket_count - 1); socket >= 0; socket--) { 751 g_autofree char *clust_name = NULL; 752 phandle_pos -= s->soc[socket].num_harts; 753 754 clust_name = g_strdup_printf("/cpus/cpu-map/cluster%d", socket); 755 qemu_fdt_add_subnode(ms->fdt, clust_name); 756 757 create_fdt_socket_cpus(s, socket, clust_name, phandle, 758 &intc_phandles[phandle_pos]); 759 760 create_fdt_socket_memory(s, memmap, socket); 761 762 if (virt_aclint_allowed() && s->have_aclint) { 763 create_fdt_socket_aclint(s, memmap, socket, 764 &intc_phandles[phandle_pos]); 765 } else if (tcg_enabled()) { 766 create_fdt_socket_clint(s, memmap, socket, 767 &intc_phandles[phandle_pos]); 768 } 769 } 770 771 if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { 772 create_fdt_imsic(s, memmap, phandle, intc_phandles, 773 &msi_m_phandle, &msi_s_phandle); 774 *msi_pcie_phandle = msi_s_phandle; 775 } 776 777 /* KVM AIA only has one APLIC instance */ 778 if (kvm_enabled() && virt_use_kvm_aia(s)) { 779 create_fdt_socket_aplic(s, memmap, 0, 780 msi_m_phandle, msi_s_phandle, phandle, 781 &intc_phandles[0], xplic_phandles, 782 ms->smp.cpus); 783 } else { 784 phandle_pos = ms->smp.cpus; 785 for (socket = (socket_count - 1); socket >= 0; socket--) { 786 phandle_pos -= s->soc[socket].num_harts; 787 788 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 789 create_fdt_socket_plic(s, memmap, socket, phandle, 790 &intc_phandles[phandle_pos], 791 xplic_phandles); 792 } else { 793 create_fdt_socket_aplic(s, memmap, socket, 794 msi_m_phandle, msi_s_phandle, phandle, 795 &intc_phandles[phandle_pos], 796 xplic_phandles, 797 s->soc[socket].num_harts); 798 } 799 } 800 } 801 802 if (kvm_enabled() && virt_use_kvm_aia(s)) { 803 *irq_mmio_phandle = xplic_phandles[0]; 804 *irq_virtio_phandle = xplic_phandles[0]; 805 *irq_pcie_phandle = xplic_phandles[0]; 806 } else { 807 for (socket = 0; socket < socket_count; socket++) { 808 if (socket == 0) { 809 *irq_mmio_phandle = xplic_phandles[socket]; 810 *irq_virtio_phandle = xplic_phandles[socket]; 811 *irq_pcie_phandle = xplic_phandles[socket]; 812 } 813 if (socket == 1) { 814 *irq_virtio_phandle = xplic_phandles[socket]; 815 *irq_pcie_phandle = xplic_phandles[socket]; 816 } 817 if (socket == 2) { 818 *irq_pcie_phandle = xplic_phandles[socket]; 819 } 820 } 821 } 822 823 riscv_socket_fdt_write_distance_matrix(ms); 824 } 825 826 static void create_fdt_virtio(RISCVVirtState *s, const MemMapEntry *memmap, 827 uint32_t irq_virtio_phandle) 828 { 829 int i; 830 MachineState *ms = MACHINE(s); 831 832 for (i = 0; i < VIRTIO_COUNT; i++) { 833 g_autofree char *name = g_strdup_printf("/soc/virtio_mmio@%lx", 834 (long)(memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size)); 835 836 qemu_fdt_add_subnode(ms->fdt, name); 837 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "virtio,mmio"); 838 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 839 0x0, memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 840 0x0, memmap[VIRT_VIRTIO].size); 841 qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", 842 irq_virtio_phandle); 843 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 844 qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", 845 VIRTIO_IRQ + i); 846 } else { 847 qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", 848 VIRTIO_IRQ + i, 0x4); 849 } 850 } 851 } 852 853 static void create_fdt_pcie(RISCVVirtState *s, const MemMapEntry *memmap, 854 uint32_t irq_pcie_phandle, 855 uint32_t msi_pcie_phandle) 856 { 857 g_autofree char *name = NULL; 858 MachineState *ms = MACHINE(s); 859 860 name = g_strdup_printf("/soc/pci@%lx", 861 (long) memmap[VIRT_PCIE_ECAM].base); 862 qemu_fdt_setprop_cell(ms->fdt, name, "#address-cells", 863 FDT_PCI_ADDR_CELLS); 864 qemu_fdt_setprop_cell(ms->fdt, name, "#interrupt-cells", 865 FDT_PCI_INT_CELLS); 866 qemu_fdt_setprop_cell(ms->fdt, name, "#size-cells", 0x2); 867 qemu_fdt_setprop_string(ms->fdt, name, "compatible", 868 "pci-host-ecam-generic"); 869 qemu_fdt_setprop_string(ms->fdt, name, "device_type", "pci"); 870 qemu_fdt_setprop_cell(ms->fdt, name, "linux,pci-domain", 0); 871 qemu_fdt_setprop_cells(ms->fdt, name, "bus-range", 0, 872 memmap[VIRT_PCIE_ECAM].size / PCIE_MMCFG_SIZE_MIN - 1); 873 qemu_fdt_setprop(ms->fdt, name, "dma-coherent", NULL, 0); 874 if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { 875 qemu_fdt_setprop_cell(ms->fdt, name, "msi-parent", msi_pcie_phandle); 876 } 877 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0, 878 memmap[VIRT_PCIE_ECAM].base, 0, memmap[VIRT_PCIE_ECAM].size); 879 qemu_fdt_setprop_sized_cells(ms->fdt, name, "ranges", 880 1, FDT_PCI_RANGE_IOPORT, 2, 0, 881 2, memmap[VIRT_PCIE_PIO].base, 2, memmap[VIRT_PCIE_PIO].size, 882 1, FDT_PCI_RANGE_MMIO, 883 2, memmap[VIRT_PCIE_MMIO].base, 884 2, memmap[VIRT_PCIE_MMIO].base, 2, memmap[VIRT_PCIE_MMIO].size, 885 1, FDT_PCI_RANGE_MMIO_64BIT, 886 2, virt_high_pcie_memmap.base, 887 2, virt_high_pcie_memmap.base, 2, virt_high_pcie_memmap.size); 888 889 create_pcie_irq_map(s, ms->fdt, name, irq_pcie_phandle); 890 } 891 892 static void create_fdt_reset(RISCVVirtState *s, const MemMapEntry *memmap, 893 uint32_t *phandle) 894 { 895 char *name; 896 uint32_t test_phandle; 897 MachineState *ms = MACHINE(s); 898 899 test_phandle = (*phandle)++; 900 name = g_strdup_printf("/soc/test@%lx", 901 (long)memmap[VIRT_TEST].base); 902 qemu_fdt_add_subnode(ms->fdt, name); 903 { 904 static const char * const compat[3] = { 905 "sifive,test1", "sifive,test0", "syscon" 906 }; 907 qemu_fdt_setprop_string_array(ms->fdt, name, "compatible", 908 (char **)&compat, ARRAY_SIZE(compat)); 909 } 910 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 911 0x0, memmap[VIRT_TEST].base, 0x0, memmap[VIRT_TEST].size); 912 qemu_fdt_setprop_cell(ms->fdt, name, "phandle", test_phandle); 913 test_phandle = qemu_fdt_get_phandle(ms->fdt, name); 914 g_free(name); 915 916 name = g_strdup_printf("/reboot"); 917 qemu_fdt_add_subnode(ms->fdt, name); 918 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-reboot"); 919 qemu_fdt_setprop_cell(ms->fdt, name, "regmap", test_phandle); 920 qemu_fdt_setprop_cell(ms->fdt, name, "offset", 0x0); 921 qemu_fdt_setprop_cell(ms->fdt, name, "value", FINISHER_RESET); 922 g_free(name); 923 924 name = g_strdup_printf("/poweroff"); 925 qemu_fdt_add_subnode(ms->fdt, name); 926 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-poweroff"); 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_PASS); 930 g_free(name); 931 } 932 933 static void create_fdt_uart(RISCVVirtState *s, const MemMapEntry *memmap, 934 uint32_t irq_mmio_phandle) 935 { 936 g_autofree char *name = NULL; 937 MachineState *ms = MACHINE(s); 938 939 name = g_strdup_printf("/soc/serial@%lx", (long)memmap[VIRT_UART0].base); 940 qemu_fdt_add_subnode(ms->fdt, name); 941 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "ns16550a"); 942 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 943 0x0, memmap[VIRT_UART0].base, 944 0x0, memmap[VIRT_UART0].size); 945 qemu_fdt_setprop_cell(ms->fdt, name, "clock-frequency", 3686400); 946 qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", irq_mmio_phandle); 947 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 948 qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", UART0_IRQ); 949 } else { 950 qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", UART0_IRQ, 0x4); 951 } 952 953 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", name); 954 } 955 956 static void create_fdt_rtc(RISCVVirtState *s, const MemMapEntry *memmap, 957 uint32_t irq_mmio_phandle) 958 { 959 g_autofree char *name = NULL; 960 MachineState *ms = MACHINE(s); 961 962 name = g_strdup_printf("/soc/rtc@%lx", (long)memmap[VIRT_RTC].base); 963 qemu_fdt_add_subnode(ms->fdt, name); 964 qemu_fdt_setprop_string(ms->fdt, name, "compatible", 965 "google,goldfish-rtc"); 966 qemu_fdt_setprop_cells(ms->fdt, name, "reg", 967 0x0, memmap[VIRT_RTC].base, 0x0, memmap[VIRT_RTC].size); 968 qemu_fdt_setprop_cell(ms->fdt, name, "interrupt-parent", 969 irq_mmio_phandle); 970 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 971 qemu_fdt_setprop_cell(ms->fdt, name, "interrupts", RTC_IRQ); 972 } else { 973 qemu_fdt_setprop_cells(ms->fdt, name, "interrupts", RTC_IRQ, 0x4); 974 } 975 } 976 977 static void create_fdt_flash(RISCVVirtState *s, const MemMapEntry *memmap) 978 { 979 MachineState *ms = MACHINE(s); 980 hwaddr flashsize = virt_memmap[VIRT_FLASH].size / 2; 981 hwaddr flashbase = virt_memmap[VIRT_FLASH].base; 982 g_autofree char *name = g_strdup_printf("/flash@%" PRIx64, flashbase); 983 984 qemu_fdt_add_subnode(ms->fdt, name); 985 qemu_fdt_setprop_string(ms->fdt, name, "compatible", "cfi-flash"); 986 qemu_fdt_setprop_sized_cells(ms->fdt, name, "reg", 987 2, flashbase, 2, flashsize, 988 2, flashbase + flashsize, 2, flashsize); 989 qemu_fdt_setprop_cell(ms->fdt, name, "bank-width", 4); 990 } 991 992 static void create_fdt_fw_cfg(RISCVVirtState *s, const MemMapEntry *memmap) 993 { 994 MachineState *ms = MACHINE(s); 995 hwaddr base = memmap[VIRT_FW_CFG].base; 996 hwaddr size = memmap[VIRT_FW_CFG].size; 997 g_autofree char *nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base); 998 999 qemu_fdt_add_subnode(ms->fdt, nodename); 1000 qemu_fdt_setprop_string(ms->fdt, nodename, 1001 "compatible", "qemu,fw-cfg-mmio"); 1002 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1003 2, base, 2, size); 1004 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1005 } 1006 1007 static void create_fdt_virtio_iommu(RISCVVirtState *s, uint16_t bdf) 1008 { 1009 const char compat[] = "virtio,pci-iommu\0pci1af4,1057"; 1010 void *fdt = MACHINE(s)->fdt; 1011 uint32_t iommu_phandle; 1012 g_autofree char *iommu_node = NULL; 1013 g_autofree char *pci_node = NULL; 1014 1015 pci_node = g_strdup_printf("/soc/pci@%lx", 1016 (long) virt_memmap[VIRT_PCIE_ECAM].base); 1017 iommu_node = g_strdup_printf("%s/virtio_iommu@%x,%x", pci_node, 1018 PCI_SLOT(bdf), PCI_FUNC(bdf)); 1019 iommu_phandle = qemu_fdt_alloc_phandle(fdt); 1020 1021 qemu_fdt_add_subnode(fdt, iommu_node); 1022 1023 qemu_fdt_setprop(fdt, iommu_node, "compatible", compat, sizeof(compat)); 1024 qemu_fdt_setprop_sized_cells(fdt, iommu_node, "reg", 1025 1, bdf << 8, 1, 0, 1, 0, 1026 1, 0, 1, 0); 1027 qemu_fdt_setprop_cell(fdt, iommu_node, "#iommu-cells", 1); 1028 qemu_fdt_setprop_cell(fdt, iommu_node, "phandle", iommu_phandle); 1029 1030 qemu_fdt_setprop_cells(fdt, pci_node, "iommu-map", 1031 0, iommu_phandle, 0, bdf, 1032 bdf + 1, iommu_phandle, bdf + 1, 0xffff - bdf); 1033 } 1034 1035 static void finalize_fdt(RISCVVirtState *s) 1036 { 1037 uint32_t phandle = 1, irq_mmio_phandle = 1, msi_pcie_phandle = 1; 1038 uint32_t irq_pcie_phandle = 1, irq_virtio_phandle = 1; 1039 1040 create_fdt_sockets(s, virt_memmap, &phandle, &irq_mmio_phandle, 1041 &irq_pcie_phandle, &irq_virtio_phandle, 1042 &msi_pcie_phandle); 1043 1044 create_fdt_virtio(s, virt_memmap, irq_virtio_phandle); 1045 1046 create_fdt_pcie(s, virt_memmap, irq_pcie_phandle, msi_pcie_phandle); 1047 1048 create_fdt_reset(s, virt_memmap, &phandle); 1049 1050 create_fdt_uart(s, virt_memmap, irq_mmio_phandle); 1051 1052 create_fdt_rtc(s, virt_memmap, irq_mmio_phandle); 1053 } 1054 1055 static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap) 1056 { 1057 MachineState *ms = MACHINE(s); 1058 uint8_t rng_seed[32]; 1059 g_autofree char *name = NULL; 1060 1061 ms->fdt = create_device_tree(&s->fdt_size); 1062 if (!ms->fdt) { 1063 error_report("create_device_tree() failed"); 1064 exit(1); 1065 } 1066 1067 qemu_fdt_setprop_string(ms->fdt, "/", "model", "riscv-virtio,qemu"); 1068 qemu_fdt_setprop_string(ms->fdt, "/", "compatible", "riscv-virtio"); 1069 qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2); 1070 qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2); 1071 1072 qemu_fdt_add_subnode(ms->fdt, "/soc"); 1073 qemu_fdt_setprop(ms->fdt, "/soc", "ranges", NULL, 0); 1074 qemu_fdt_setprop_string(ms->fdt, "/soc", "compatible", "simple-bus"); 1075 qemu_fdt_setprop_cell(ms->fdt, "/soc", "#size-cells", 0x2); 1076 qemu_fdt_setprop_cell(ms->fdt, "/soc", "#address-cells", 0x2); 1077 1078 /* 1079 * The "/soc/pci@..." node is needed for PCIE hotplugs 1080 * that might happen before finalize_fdt(). 1081 */ 1082 name = g_strdup_printf("/soc/pci@%lx", (long) memmap[VIRT_PCIE_ECAM].base); 1083 qemu_fdt_add_subnode(ms->fdt, name); 1084 1085 qemu_fdt_add_subnode(ms->fdt, "/chosen"); 1086 1087 /* Pass seed to RNG */ 1088 qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); 1089 qemu_fdt_setprop(ms->fdt, "/chosen", "rng-seed", 1090 rng_seed, sizeof(rng_seed)); 1091 1092 create_fdt_flash(s, memmap); 1093 create_fdt_fw_cfg(s, memmap); 1094 create_fdt_pmu(s); 1095 } 1096 1097 static inline DeviceState *gpex_pcie_init(MemoryRegion *sys_mem, 1098 DeviceState *irqchip, 1099 RISCVVirtState *s) 1100 { 1101 DeviceState *dev; 1102 MemoryRegion *ecam_alias, *ecam_reg; 1103 MemoryRegion *mmio_alias, *high_mmio_alias, *mmio_reg; 1104 hwaddr ecam_base = s->memmap[VIRT_PCIE_ECAM].base; 1105 hwaddr ecam_size = s->memmap[VIRT_PCIE_ECAM].size; 1106 hwaddr mmio_base = s->memmap[VIRT_PCIE_MMIO].base; 1107 hwaddr mmio_size = s->memmap[VIRT_PCIE_MMIO].size; 1108 hwaddr high_mmio_base = virt_high_pcie_memmap.base; 1109 hwaddr high_mmio_size = virt_high_pcie_memmap.size; 1110 hwaddr pio_base = s->memmap[VIRT_PCIE_PIO].base; 1111 hwaddr pio_size = s->memmap[VIRT_PCIE_PIO].size; 1112 qemu_irq irq; 1113 int i; 1114 1115 dev = qdev_new(TYPE_GPEX_HOST); 1116 1117 /* Set GPEX object properties for the virt machine */ 1118 object_property_set_uint(OBJECT(GPEX_HOST(dev)), PCI_HOST_ECAM_BASE, 1119 ecam_base, NULL); 1120 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_ECAM_SIZE, 1121 ecam_size, NULL); 1122 object_property_set_uint(OBJECT(GPEX_HOST(dev)), 1123 PCI_HOST_BELOW_4G_MMIO_BASE, 1124 mmio_base, NULL); 1125 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_BELOW_4G_MMIO_SIZE, 1126 mmio_size, NULL); 1127 object_property_set_uint(OBJECT(GPEX_HOST(dev)), 1128 PCI_HOST_ABOVE_4G_MMIO_BASE, 1129 high_mmio_base, NULL); 1130 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_ABOVE_4G_MMIO_SIZE, 1131 high_mmio_size, NULL); 1132 object_property_set_uint(OBJECT(GPEX_HOST(dev)), PCI_HOST_PIO_BASE, 1133 pio_base, NULL); 1134 object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_PIO_SIZE, 1135 pio_size, NULL); 1136 1137 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1138 1139 ecam_alias = g_new0(MemoryRegion, 1); 1140 ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); 1141 memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", 1142 ecam_reg, 0, ecam_size); 1143 memory_region_add_subregion(get_system_memory(), ecam_base, ecam_alias); 1144 1145 mmio_alias = g_new0(MemoryRegion, 1); 1146 mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); 1147 memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", 1148 mmio_reg, mmio_base, mmio_size); 1149 memory_region_add_subregion(get_system_memory(), mmio_base, mmio_alias); 1150 1151 /* Map high MMIO space */ 1152 high_mmio_alias = g_new0(MemoryRegion, 1); 1153 memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", 1154 mmio_reg, high_mmio_base, high_mmio_size); 1155 memory_region_add_subregion(get_system_memory(), high_mmio_base, 1156 high_mmio_alias); 1157 1158 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base); 1159 1160 for (i = 0; i < GPEX_NUM_IRQS; i++) { 1161 irq = qdev_get_gpio_in(irqchip, PCIE_IRQ + i); 1162 1163 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); 1164 gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ + i); 1165 } 1166 1167 GPEX_HOST(dev)->gpex_cfg.bus = PCI_HOST_BRIDGE(GPEX_HOST(dev))->bus; 1168 return dev; 1169 } 1170 1171 static FWCfgState *create_fw_cfg(const MachineState *ms) 1172 { 1173 hwaddr base = virt_memmap[VIRT_FW_CFG].base; 1174 FWCfgState *fw_cfg; 1175 1176 fw_cfg = fw_cfg_init_mem_wide(base + 8, base, 8, base + 16, 1177 &address_space_memory); 1178 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus); 1179 1180 return fw_cfg; 1181 } 1182 1183 static DeviceState *virt_create_plic(const MemMapEntry *memmap, int socket, 1184 int base_hartid, int hart_count) 1185 { 1186 DeviceState *ret; 1187 g_autofree char *plic_hart_config = NULL; 1188 1189 /* Per-socket PLIC hart topology configuration string */ 1190 plic_hart_config = riscv_plic_hart_config_string(hart_count); 1191 1192 /* Per-socket PLIC */ 1193 ret = sifive_plic_create( 1194 memmap[VIRT_PLIC].base + socket * memmap[VIRT_PLIC].size, 1195 plic_hart_config, hart_count, base_hartid, 1196 VIRT_IRQCHIP_NUM_SOURCES, 1197 ((1U << VIRT_IRQCHIP_NUM_PRIO_BITS) - 1), 1198 VIRT_PLIC_PRIORITY_BASE, 1199 VIRT_PLIC_PENDING_BASE, 1200 VIRT_PLIC_ENABLE_BASE, 1201 VIRT_PLIC_ENABLE_STRIDE, 1202 VIRT_PLIC_CONTEXT_BASE, 1203 VIRT_PLIC_CONTEXT_STRIDE, 1204 memmap[VIRT_PLIC].size); 1205 1206 return ret; 1207 } 1208 1209 static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, 1210 const MemMapEntry *memmap, int socket, 1211 int base_hartid, int hart_count) 1212 { 1213 int i; 1214 hwaddr addr; 1215 uint32_t guest_bits; 1216 DeviceState *aplic_s = NULL; 1217 DeviceState *aplic_m = NULL; 1218 bool msimode = aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; 1219 1220 if (msimode) { 1221 if (!kvm_enabled()) { 1222 /* Per-socket M-level IMSICs */ 1223 addr = memmap[VIRT_IMSIC_M].base + 1224 socket * VIRT_IMSIC_GROUP_MAX_SIZE; 1225 for (i = 0; i < hart_count; i++) { 1226 riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), 1227 base_hartid + i, true, 1, 1228 VIRT_IRQCHIP_NUM_MSIS); 1229 } 1230 } 1231 1232 /* Per-socket S-level IMSICs */ 1233 guest_bits = imsic_num_bits(aia_guests + 1); 1234 addr = memmap[VIRT_IMSIC_S].base + socket * VIRT_IMSIC_GROUP_MAX_SIZE; 1235 for (i = 0; i < hart_count; i++) { 1236 riscv_imsic_create(addr + i * IMSIC_HART_SIZE(guest_bits), 1237 base_hartid + i, false, 1 + aia_guests, 1238 VIRT_IRQCHIP_NUM_MSIS); 1239 } 1240 } 1241 1242 if (!kvm_enabled()) { 1243 /* Per-socket M-level APLIC */ 1244 aplic_m = riscv_aplic_create(memmap[VIRT_APLIC_M].base + 1245 socket * memmap[VIRT_APLIC_M].size, 1246 memmap[VIRT_APLIC_M].size, 1247 (msimode) ? 0 : base_hartid, 1248 (msimode) ? 0 : hart_count, 1249 VIRT_IRQCHIP_NUM_SOURCES, 1250 VIRT_IRQCHIP_NUM_PRIO_BITS, 1251 msimode, true, NULL); 1252 } 1253 1254 /* Per-socket S-level APLIC */ 1255 aplic_s = riscv_aplic_create(memmap[VIRT_APLIC_S].base + 1256 socket * memmap[VIRT_APLIC_S].size, 1257 memmap[VIRT_APLIC_S].size, 1258 (msimode) ? 0 : base_hartid, 1259 (msimode) ? 0 : hart_count, 1260 VIRT_IRQCHIP_NUM_SOURCES, 1261 VIRT_IRQCHIP_NUM_PRIO_BITS, 1262 msimode, false, aplic_m); 1263 1264 return kvm_enabled() ? aplic_s : aplic_m; 1265 } 1266 1267 static void create_platform_bus(RISCVVirtState *s, DeviceState *irqchip) 1268 { 1269 DeviceState *dev; 1270 SysBusDevice *sysbus; 1271 const MemMapEntry *memmap = virt_memmap; 1272 int i; 1273 MemoryRegion *sysmem = get_system_memory(); 1274 1275 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); 1276 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); 1277 qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS); 1278 qdev_prop_set_uint32(dev, "mmio_size", memmap[VIRT_PLATFORM_BUS].size); 1279 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1280 s->platform_bus_dev = dev; 1281 1282 sysbus = SYS_BUS_DEVICE(dev); 1283 for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) { 1284 int irq = VIRT_PLATFORM_BUS_IRQ + i; 1285 sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(irqchip, irq)); 1286 } 1287 1288 memory_region_add_subregion(sysmem, 1289 memmap[VIRT_PLATFORM_BUS].base, 1290 sysbus_mmio_get_region(sysbus, 0)); 1291 } 1292 1293 static void virt_build_smbios(RISCVVirtState *s) 1294 { 1295 MachineClass *mc = MACHINE_GET_CLASS(s); 1296 MachineState *ms = MACHINE(s); 1297 uint8_t *smbios_tables, *smbios_anchor; 1298 size_t smbios_tables_len, smbios_anchor_len; 1299 struct smbios_phys_mem_area mem_array; 1300 const char *product = "QEMU Virtual Machine"; 1301 1302 if (kvm_enabled()) { 1303 product = "KVM Virtual Machine"; 1304 } 1305 1306 smbios_set_defaults("QEMU", product, mc->name); 1307 1308 if (riscv_is_32bit(&s->soc[0])) { 1309 smbios_set_default_processor_family(0x200); 1310 } else { 1311 smbios_set_default_processor_family(0x201); 1312 } 1313 1314 /* build the array of physical mem area from base_memmap */ 1315 mem_array.address = s->memmap[VIRT_DRAM].base; 1316 mem_array.length = ms->ram_size; 1317 1318 smbios_get_tables(ms, SMBIOS_ENTRY_POINT_TYPE_64, 1319 &mem_array, 1, 1320 &smbios_tables, &smbios_tables_len, 1321 &smbios_anchor, &smbios_anchor_len, 1322 &error_fatal); 1323 1324 if (smbios_anchor) { 1325 fw_cfg_add_file(s->fw_cfg, "etc/smbios/smbios-tables", 1326 smbios_tables, smbios_tables_len); 1327 fw_cfg_add_file(s->fw_cfg, "etc/smbios/smbios-anchor", 1328 smbios_anchor, smbios_anchor_len); 1329 } 1330 } 1331 1332 static void virt_machine_done(Notifier *notifier, void *data) 1333 { 1334 RISCVVirtState *s = container_of(notifier, RISCVVirtState, 1335 machine_done); 1336 const MemMapEntry *memmap = virt_memmap; 1337 MachineState *machine = MACHINE(s); 1338 target_ulong start_addr = memmap[VIRT_DRAM].base; 1339 target_ulong firmware_end_addr, kernel_start_addr; 1340 const char *firmware_name = riscv_default_firmware_name(&s->soc[0]); 1341 uint64_t fdt_load_addr; 1342 uint64_t kernel_entry = 0; 1343 BlockBackend *pflash_blk0; 1344 1345 /* 1346 * An user provided dtb must include everything, including 1347 * dynamic sysbus devices. Our FDT needs to be finalized. 1348 */ 1349 if (machine->dtb == NULL) { 1350 finalize_fdt(s); 1351 } 1352 1353 /* 1354 * Only direct boot kernel is currently supported for KVM VM, 1355 * so the "-bios" parameter is not supported when KVM is enabled. 1356 */ 1357 if (kvm_enabled()) { 1358 if (machine->firmware) { 1359 if (strcmp(machine->firmware, "none")) { 1360 error_report("Machine mode firmware is not supported in " 1361 "combination with KVM."); 1362 exit(1); 1363 } 1364 } else { 1365 machine->firmware = g_strdup("none"); 1366 } 1367 } 1368 1369 firmware_end_addr = riscv_find_and_load_firmware(machine, firmware_name, 1370 start_addr, NULL); 1371 1372 pflash_blk0 = pflash_cfi01_get_blk(s->flash[0]); 1373 if (pflash_blk0) { 1374 if (machine->firmware && !strcmp(machine->firmware, "none") && 1375 !kvm_enabled()) { 1376 /* 1377 * Pflash was supplied but bios is none and not KVM guest, 1378 * let's overwrite the address we jump to after reset to 1379 * the base of the flash. 1380 */ 1381 start_addr = virt_memmap[VIRT_FLASH].base; 1382 } else { 1383 /* 1384 * Pflash was supplied but either KVM guest or bios is not none. 1385 * In this case, base of the flash would contain S-mode payload. 1386 */ 1387 riscv_setup_firmware_boot(machine); 1388 kernel_entry = virt_memmap[VIRT_FLASH].base; 1389 } 1390 } 1391 1392 if (machine->kernel_filename && !kernel_entry) { 1393 kernel_start_addr = riscv_calc_kernel_start_addr(&s->soc[0], 1394 firmware_end_addr); 1395 1396 kernel_entry = riscv_load_kernel(machine, &s->soc[0], 1397 kernel_start_addr, true, NULL); 1398 } 1399 1400 fdt_load_addr = riscv_compute_fdt_addr(memmap[VIRT_DRAM].base, 1401 memmap[VIRT_DRAM].size, 1402 machine); 1403 riscv_load_fdt(fdt_load_addr, machine->fdt); 1404 1405 /* load the reset vector */ 1406 riscv_setup_rom_reset_vec(machine, &s->soc[0], start_addr, 1407 virt_memmap[VIRT_MROM].base, 1408 virt_memmap[VIRT_MROM].size, kernel_entry, 1409 fdt_load_addr); 1410 1411 /* 1412 * Only direct boot kernel is currently supported for KVM VM, 1413 * So here setup kernel start address and fdt address. 1414 * TODO:Support firmware loading and integrate to TCG start 1415 */ 1416 if (kvm_enabled()) { 1417 riscv_setup_direct_kernel(kernel_entry, fdt_load_addr); 1418 } 1419 1420 virt_build_smbios(s); 1421 1422 if (virt_is_acpi_enabled(s)) { 1423 virt_acpi_setup(s); 1424 } 1425 } 1426 1427 static void virt_machine_init(MachineState *machine) 1428 { 1429 const MemMapEntry *memmap = virt_memmap; 1430 RISCVVirtState *s = RISCV_VIRT_MACHINE(machine); 1431 MemoryRegion *system_memory = get_system_memory(); 1432 MemoryRegion *mask_rom = g_new(MemoryRegion, 1); 1433 DeviceState *mmio_irqchip, *virtio_irqchip, *pcie_irqchip; 1434 int i, base_hartid, hart_count; 1435 int socket_count = riscv_socket_count(machine); 1436 1437 /* Check socket count limit */ 1438 if (VIRT_SOCKETS_MAX < socket_count) { 1439 error_report("number of sockets/nodes should be less than %d", 1440 VIRT_SOCKETS_MAX); 1441 exit(1); 1442 } 1443 1444 if (!virt_aclint_allowed() && s->have_aclint) { 1445 error_report("'aclint' is only available with TCG acceleration"); 1446 exit(1); 1447 } 1448 1449 /* Initialize sockets */ 1450 mmio_irqchip = virtio_irqchip = pcie_irqchip = NULL; 1451 for (i = 0; i < socket_count; i++) { 1452 g_autofree char *soc_name = g_strdup_printf("soc%d", i); 1453 1454 if (!riscv_socket_check_hartids(machine, i)) { 1455 error_report("discontinuous hartids in socket%d", i); 1456 exit(1); 1457 } 1458 1459 base_hartid = riscv_socket_first_hartid(machine, i); 1460 if (base_hartid < 0) { 1461 error_report("can't find hartid base for socket%d", i); 1462 exit(1); 1463 } 1464 1465 hart_count = riscv_socket_hart_count(machine, i); 1466 if (hart_count < 0) { 1467 error_report("can't find hart count for socket%d", i); 1468 exit(1); 1469 } 1470 1471 object_initialize_child(OBJECT(machine), soc_name, &s->soc[i], 1472 TYPE_RISCV_HART_ARRAY); 1473 object_property_set_str(OBJECT(&s->soc[i]), "cpu-type", 1474 machine->cpu_type, &error_abort); 1475 object_property_set_int(OBJECT(&s->soc[i]), "hartid-base", 1476 base_hartid, &error_abort); 1477 object_property_set_int(OBJECT(&s->soc[i]), "num-harts", 1478 hart_count, &error_abort); 1479 sysbus_realize(SYS_BUS_DEVICE(&s->soc[i]), &error_fatal); 1480 1481 if (virt_aclint_allowed() && s->have_aclint) { 1482 if (s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) { 1483 /* Per-socket ACLINT MTIMER */ 1484 riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + 1485 i * RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 1486 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 1487 base_hartid, hart_count, 1488 RISCV_ACLINT_DEFAULT_MTIMECMP, 1489 RISCV_ACLINT_DEFAULT_MTIME, 1490 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); 1491 } else { 1492 /* Per-socket ACLINT MSWI, MTIMER, and SSWI */ 1493 riscv_aclint_swi_create(memmap[VIRT_CLINT].base + 1494 i * memmap[VIRT_CLINT].size, 1495 base_hartid, hart_count, false); 1496 riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + 1497 i * memmap[VIRT_CLINT].size + 1498 RISCV_ACLINT_SWI_SIZE, 1499 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 1500 base_hartid, hart_count, 1501 RISCV_ACLINT_DEFAULT_MTIMECMP, 1502 RISCV_ACLINT_DEFAULT_MTIME, 1503 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); 1504 riscv_aclint_swi_create(memmap[VIRT_ACLINT_SSWI].base + 1505 i * memmap[VIRT_ACLINT_SSWI].size, 1506 base_hartid, hart_count, true); 1507 } 1508 } else if (tcg_enabled()) { 1509 /* Per-socket SiFive CLINT */ 1510 riscv_aclint_swi_create( 1511 memmap[VIRT_CLINT].base + i * memmap[VIRT_CLINT].size, 1512 base_hartid, hart_count, false); 1513 riscv_aclint_mtimer_create(memmap[VIRT_CLINT].base + 1514 i * memmap[VIRT_CLINT].size + RISCV_ACLINT_SWI_SIZE, 1515 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, base_hartid, hart_count, 1516 RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, 1517 RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ, true); 1518 } 1519 1520 /* Per-socket interrupt controller */ 1521 if (s->aia_type == VIRT_AIA_TYPE_NONE) { 1522 s->irqchip[i] = virt_create_plic(memmap, i, 1523 base_hartid, hart_count); 1524 } else { 1525 s->irqchip[i] = virt_create_aia(s->aia_type, s->aia_guests, 1526 memmap, i, base_hartid, 1527 hart_count); 1528 } 1529 1530 /* Try to use different IRQCHIP instance based device type */ 1531 if (i == 0) { 1532 mmio_irqchip = s->irqchip[i]; 1533 virtio_irqchip = s->irqchip[i]; 1534 pcie_irqchip = s->irqchip[i]; 1535 } 1536 if (i == 1) { 1537 virtio_irqchip = s->irqchip[i]; 1538 pcie_irqchip = s->irqchip[i]; 1539 } 1540 if (i == 2) { 1541 pcie_irqchip = s->irqchip[i]; 1542 } 1543 } 1544 1545 if (kvm_enabled() && virt_use_kvm_aia(s)) { 1546 kvm_riscv_aia_create(machine, IMSIC_MMIO_GROUP_MIN_SHIFT, 1547 VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_MSIS, 1548 memmap[VIRT_APLIC_S].base, 1549 memmap[VIRT_IMSIC_S].base, 1550 s->aia_guests); 1551 } 1552 1553 if (riscv_is_32bit(&s->soc[0])) { 1554 #if HOST_LONG_BITS == 64 1555 /* limit RAM size in a 32-bit system */ 1556 if (machine->ram_size > 10 * GiB) { 1557 machine->ram_size = 10 * GiB; 1558 error_report("Limiting RAM size to 10 GiB"); 1559 } 1560 #endif 1561 virt_high_pcie_memmap.base = VIRT32_HIGH_PCIE_MMIO_BASE; 1562 virt_high_pcie_memmap.size = VIRT32_HIGH_PCIE_MMIO_SIZE; 1563 } else { 1564 virt_high_pcie_memmap.size = VIRT64_HIGH_PCIE_MMIO_SIZE; 1565 virt_high_pcie_memmap.base = memmap[VIRT_DRAM].base + machine->ram_size; 1566 virt_high_pcie_memmap.base = 1567 ROUND_UP(virt_high_pcie_memmap.base, virt_high_pcie_memmap.size); 1568 } 1569 1570 s->memmap = virt_memmap; 1571 1572 /* register system main memory (actual RAM) */ 1573 memory_region_add_subregion(system_memory, memmap[VIRT_DRAM].base, 1574 machine->ram); 1575 1576 /* boot rom */ 1577 memory_region_init_rom(mask_rom, NULL, "riscv_virt_board.mrom", 1578 memmap[VIRT_MROM].size, &error_fatal); 1579 memory_region_add_subregion(system_memory, memmap[VIRT_MROM].base, 1580 mask_rom); 1581 1582 /* 1583 * Init fw_cfg. Must be done before riscv_load_fdt, otherwise the 1584 * device tree cannot be altered and we get FDT_ERR_NOSPACE. 1585 */ 1586 s->fw_cfg = create_fw_cfg(machine); 1587 rom_set_fw(s->fw_cfg); 1588 1589 /* SiFive Test MMIO device */ 1590 sifive_test_create(memmap[VIRT_TEST].base); 1591 1592 /* VirtIO MMIO devices */ 1593 for (i = 0; i < VIRTIO_COUNT; i++) { 1594 sysbus_create_simple("virtio-mmio", 1595 memmap[VIRT_VIRTIO].base + i * memmap[VIRT_VIRTIO].size, 1596 qdev_get_gpio_in(virtio_irqchip, VIRTIO_IRQ + i)); 1597 } 1598 1599 gpex_pcie_init(system_memory, pcie_irqchip, s); 1600 1601 create_platform_bus(s, mmio_irqchip); 1602 1603 serial_mm_init(system_memory, memmap[VIRT_UART0].base, 1604 0, qdev_get_gpio_in(mmio_irqchip, UART0_IRQ), 399193, 1605 serial_hd(0), DEVICE_LITTLE_ENDIAN); 1606 1607 sysbus_create_simple("goldfish_rtc", memmap[VIRT_RTC].base, 1608 qdev_get_gpio_in(mmio_irqchip, RTC_IRQ)); 1609 1610 for (i = 0; i < ARRAY_SIZE(s->flash); i++) { 1611 /* Map legacy -drive if=pflash to machine properties */ 1612 pflash_cfi01_legacy_drive(s->flash[i], 1613 drive_get(IF_PFLASH, 0, i)); 1614 } 1615 virt_flash_map(s, system_memory); 1616 1617 /* load/create device tree */ 1618 if (machine->dtb) { 1619 machine->fdt = load_device_tree(machine->dtb, &s->fdt_size); 1620 if (!machine->fdt) { 1621 error_report("load_device_tree() failed"); 1622 exit(1); 1623 } 1624 } else { 1625 create_fdt(s, memmap); 1626 } 1627 1628 s->machine_done.notify = virt_machine_done; 1629 qemu_add_machine_init_done_notifier(&s->machine_done); 1630 } 1631 1632 static void virt_machine_instance_init(Object *obj) 1633 { 1634 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1635 1636 virt_flash_create(s); 1637 1638 s->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); 1639 s->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); 1640 s->acpi = ON_OFF_AUTO_AUTO; 1641 } 1642 1643 static char *virt_get_aia_guests(Object *obj, Error **errp) 1644 { 1645 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1646 1647 return g_strdup_printf("%d", s->aia_guests); 1648 } 1649 1650 static void virt_set_aia_guests(Object *obj, const char *val, Error **errp) 1651 { 1652 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1653 1654 s->aia_guests = atoi(val); 1655 if (s->aia_guests < 0 || s->aia_guests > VIRT_IRQCHIP_MAX_GUESTS) { 1656 error_setg(errp, "Invalid number of AIA IMSIC guests"); 1657 error_append_hint(errp, "Valid values be between 0 and %d.\n", 1658 VIRT_IRQCHIP_MAX_GUESTS); 1659 } 1660 } 1661 1662 static char *virt_get_aia(Object *obj, Error **errp) 1663 { 1664 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1665 const char *val; 1666 1667 switch (s->aia_type) { 1668 case VIRT_AIA_TYPE_APLIC: 1669 val = "aplic"; 1670 break; 1671 case VIRT_AIA_TYPE_APLIC_IMSIC: 1672 val = "aplic-imsic"; 1673 break; 1674 default: 1675 val = "none"; 1676 break; 1677 }; 1678 1679 return g_strdup(val); 1680 } 1681 1682 static void virt_set_aia(Object *obj, const char *val, Error **errp) 1683 { 1684 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1685 1686 if (!strcmp(val, "none")) { 1687 s->aia_type = VIRT_AIA_TYPE_NONE; 1688 } else if (!strcmp(val, "aplic")) { 1689 s->aia_type = VIRT_AIA_TYPE_APLIC; 1690 } else if (!strcmp(val, "aplic-imsic")) { 1691 s->aia_type = VIRT_AIA_TYPE_APLIC_IMSIC; 1692 } else { 1693 error_setg(errp, "Invalid AIA interrupt controller type"); 1694 error_append_hint(errp, "Valid values are none, aplic, and " 1695 "aplic-imsic.\n"); 1696 } 1697 } 1698 1699 static bool virt_get_aclint(Object *obj, Error **errp) 1700 { 1701 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1702 1703 return s->have_aclint; 1704 } 1705 1706 static void virt_set_aclint(Object *obj, bool value, Error **errp) 1707 { 1708 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1709 1710 s->have_aclint = value; 1711 } 1712 1713 bool virt_is_acpi_enabled(RISCVVirtState *s) 1714 { 1715 return s->acpi != ON_OFF_AUTO_OFF; 1716 } 1717 1718 static void virt_get_acpi(Object *obj, Visitor *v, const char *name, 1719 void *opaque, Error **errp) 1720 { 1721 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1722 OnOffAuto acpi = s->acpi; 1723 1724 visit_type_OnOffAuto(v, name, &acpi, errp); 1725 } 1726 1727 static void virt_set_acpi(Object *obj, Visitor *v, const char *name, 1728 void *opaque, Error **errp) 1729 { 1730 RISCVVirtState *s = RISCV_VIRT_MACHINE(obj); 1731 1732 visit_type_OnOffAuto(v, name, &s->acpi, errp); 1733 } 1734 1735 static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, 1736 DeviceState *dev) 1737 { 1738 MachineClass *mc = MACHINE_GET_CLASS(machine); 1739 1740 if (device_is_dynamic_sysbus(mc, dev) || 1741 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 1742 return HOTPLUG_HANDLER(machine); 1743 } 1744 return NULL; 1745 } 1746 1747 static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, 1748 DeviceState *dev, Error **errp) 1749 { 1750 RISCVVirtState *s = RISCV_VIRT_MACHINE(hotplug_dev); 1751 1752 if (s->platform_bus_dev) { 1753 MachineClass *mc = MACHINE_GET_CLASS(s); 1754 1755 if (device_is_dynamic_sysbus(mc, dev)) { 1756 platform_bus_link_device(PLATFORM_BUS_DEVICE(s->platform_bus_dev), 1757 SYS_BUS_DEVICE(dev)); 1758 } 1759 } 1760 1761 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 1762 create_fdt_virtio_iommu(s, pci_get_bdf(PCI_DEVICE(dev))); 1763 } 1764 } 1765 1766 static void virt_machine_class_init(ObjectClass *oc, void *data) 1767 { 1768 MachineClass *mc = MACHINE_CLASS(oc); 1769 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 1770 1771 mc->desc = "RISC-V VirtIO board"; 1772 mc->init = virt_machine_init; 1773 mc->max_cpus = VIRT_CPUS_MAX; 1774 mc->default_cpu_type = TYPE_RISCV_CPU_BASE; 1775 mc->block_default_type = IF_VIRTIO; 1776 mc->no_cdrom = 1; 1777 mc->pci_allow_0_address = true; 1778 mc->possible_cpu_arch_ids = riscv_numa_possible_cpu_arch_ids; 1779 mc->cpu_index_to_instance_props = riscv_numa_cpu_index_to_props; 1780 mc->get_default_cpu_node_id = riscv_numa_get_default_cpu_node_id; 1781 mc->numa_mem_supported = true; 1782 /* platform instead of architectural choice */ 1783 mc->cpu_cluster_has_numa_boundary = true; 1784 mc->default_ram_id = "riscv_virt_board.ram"; 1785 assert(!mc->get_hotplug_handler); 1786 mc->get_hotplug_handler = virt_machine_get_hotplug_handler; 1787 1788 hc->plug = virt_machine_device_plug_cb; 1789 1790 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); 1791 #ifdef CONFIG_TPM 1792 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); 1793 #endif 1794 1795 object_class_property_add_bool(oc, "aclint", virt_get_aclint, 1796 virt_set_aclint); 1797 object_class_property_set_description(oc, "aclint", 1798 "(TCG only) Set on/off to " 1799 "enable/disable emulating " 1800 "ACLINT devices"); 1801 1802 object_class_property_add_str(oc, "aia", virt_get_aia, 1803 virt_set_aia); 1804 object_class_property_set_description(oc, "aia", 1805 "Set type of AIA interrupt " 1806 "controller. Valid values are " 1807 "none, aplic, and aplic-imsic."); 1808 1809 object_class_property_add_str(oc, "aia-guests", 1810 virt_get_aia_guests, 1811 virt_set_aia_guests); 1812 { 1813 g_autofree char *str = 1814 g_strdup_printf("Set number of guest MMIO pages for AIA IMSIC. " 1815 "Valid value should be between 0 and %d.", 1816 VIRT_IRQCHIP_MAX_GUESTS); 1817 object_class_property_set_description(oc, "aia-guests", str); 1818 } 1819 1820 object_class_property_add(oc, "acpi", "OnOffAuto", 1821 virt_get_acpi, virt_set_acpi, 1822 NULL, NULL); 1823 object_class_property_set_description(oc, "acpi", 1824 "Enable ACPI"); 1825 } 1826 1827 static const TypeInfo virt_machine_typeinfo = { 1828 .name = MACHINE_TYPE_NAME("virt"), 1829 .parent = TYPE_MACHINE, 1830 .class_init = virt_machine_class_init, 1831 .instance_init = virt_machine_instance_init, 1832 .instance_size = sizeof(RISCVVirtState), 1833 .interfaces = (InterfaceInfo[]) { 1834 { TYPE_HOTPLUG_HANDLER }, 1835 { } 1836 }, 1837 }; 1838 1839 static void virt_machine_init_register_types(void) 1840 { 1841 type_register_static(&virt_machine_typeinfo); 1842 } 1843 1844 type_init(virt_machine_init_register_types) 1845