1*0ebf007dSSergio Lopez /* 2*0ebf007dSSergio Lopez * Copyright (c) 2018 Intel Corporation 3*0ebf007dSSergio Lopez * Copyright (c) 2019 Red Hat, Inc. 4*0ebf007dSSergio Lopez * 5*0ebf007dSSergio Lopez * This program is free software; you can redistribute it and/or modify it 6*0ebf007dSSergio Lopez * under the terms and conditions of the GNU General Public License, 7*0ebf007dSSergio Lopez * version 2 or later, as published by the Free Software Foundation. 8*0ebf007dSSergio Lopez * 9*0ebf007dSSergio Lopez * This program is distributed in the hope it will be useful, but WITHOUT 10*0ebf007dSSergio Lopez * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11*0ebf007dSSergio Lopez * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12*0ebf007dSSergio Lopez * more details. 13*0ebf007dSSergio Lopez * 14*0ebf007dSSergio Lopez * You should have received a copy of the GNU General Public License along with 15*0ebf007dSSergio Lopez * this program. If not, see <http://www.gnu.org/licenses/>. 16*0ebf007dSSergio Lopez */ 17*0ebf007dSSergio Lopez 18*0ebf007dSSergio Lopez #include "qemu/osdep.h" 19*0ebf007dSSergio Lopez #include "qemu/error-report.h" 20*0ebf007dSSergio Lopez #include "qemu/cutils.h" 21*0ebf007dSSergio Lopez #include "qemu/units.h" 22*0ebf007dSSergio Lopez #include "qapi/error.h" 23*0ebf007dSSergio Lopez #include "qapi/visitor.h" 24*0ebf007dSSergio Lopez #include "qapi/qapi-visit-common.h" 25*0ebf007dSSergio Lopez #include "sysemu/sysemu.h" 26*0ebf007dSSergio Lopez #include "sysemu/cpus.h" 27*0ebf007dSSergio Lopez #include "sysemu/numa.h" 28*0ebf007dSSergio Lopez #include "sysemu/reset.h" 29*0ebf007dSSergio Lopez 30*0ebf007dSSergio Lopez #include "hw/loader.h" 31*0ebf007dSSergio Lopez #include "hw/irq.h" 32*0ebf007dSSergio Lopez #include "hw/kvm/clock.h" 33*0ebf007dSSergio Lopez #include "hw/i386/microvm.h" 34*0ebf007dSSergio Lopez #include "hw/i386/x86.h" 35*0ebf007dSSergio Lopez #include "hw/i386/pc.h" 36*0ebf007dSSergio Lopez #include "target/i386/cpu.h" 37*0ebf007dSSergio Lopez #include "hw/timer/i8254.h" 38*0ebf007dSSergio Lopez #include "hw/timer/mc146818rtc.h" 39*0ebf007dSSergio Lopez #include "hw/char/serial.h" 40*0ebf007dSSergio Lopez #include "hw/i386/topology.h" 41*0ebf007dSSergio Lopez #include "hw/i386/e820_memory_layout.h" 42*0ebf007dSSergio Lopez #include "hw/i386/fw_cfg.h" 43*0ebf007dSSergio Lopez #include "hw/virtio/virtio-mmio.h" 44*0ebf007dSSergio Lopez 45*0ebf007dSSergio Lopez #include "cpu.h" 46*0ebf007dSSergio Lopez #include "elf.h" 47*0ebf007dSSergio Lopez #include "kvm_i386.h" 48*0ebf007dSSergio Lopez #include "hw/xen/start_info.h" 49*0ebf007dSSergio Lopez 50*0ebf007dSSergio Lopez #define MICROVM_BIOS_FILENAME "bios-microvm.bin" 51*0ebf007dSSergio Lopez 52*0ebf007dSSergio Lopez static void microvm_set_rtc(MicrovmMachineState *mms, ISADevice *s) 53*0ebf007dSSergio Lopez { 54*0ebf007dSSergio Lopez X86MachineState *x86ms = X86_MACHINE(mms); 55*0ebf007dSSergio Lopez int val; 56*0ebf007dSSergio Lopez 57*0ebf007dSSergio Lopez val = MIN(x86ms->below_4g_mem_size / KiB, 640); 58*0ebf007dSSergio Lopez rtc_set_memory(s, 0x15, val); 59*0ebf007dSSergio Lopez rtc_set_memory(s, 0x16, val >> 8); 60*0ebf007dSSergio Lopez /* extended memory (next 64MiB) */ 61*0ebf007dSSergio Lopez if (x86ms->below_4g_mem_size > 1 * MiB) { 62*0ebf007dSSergio Lopez val = (x86ms->below_4g_mem_size - 1 * MiB) / KiB; 63*0ebf007dSSergio Lopez } else { 64*0ebf007dSSergio Lopez val = 0; 65*0ebf007dSSergio Lopez } 66*0ebf007dSSergio Lopez if (val > 65535) { 67*0ebf007dSSergio Lopez val = 65535; 68*0ebf007dSSergio Lopez } 69*0ebf007dSSergio Lopez rtc_set_memory(s, 0x17, val); 70*0ebf007dSSergio Lopez rtc_set_memory(s, 0x18, val >> 8); 71*0ebf007dSSergio Lopez rtc_set_memory(s, 0x30, val); 72*0ebf007dSSergio Lopez rtc_set_memory(s, 0x31, val >> 8); 73*0ebf007dSSergio Lopez /* memory between 16MiB and 4GiB */ 74*0ebf007dSSergio Lopez if (x86ms->below_4g_mem_size > 16 * MiB) { 75*0ebf007dSSergio Lopez val = (x86ms->below_4g_mem_size - 16 * MiB) / (64 * KiB); 76*0ebf007dSSergio Lopez } else { 77*0ebf007dSSergio Lopez val = 0; 78*0ebf007dSSergio Lopez } 79*0ebf007dSSergio Lopez if (val > 65535) { 80*0ebf007dSSergio Lopez val = 65535; 81*0ebf007dSSergio Lopez } 82*0ebf007dSSergio Lopez rtc_set_memory(s, 0x34, val); 83*0ebf007dSSergio Lopez rtc_set_memory(s, 0x35, val >> 8); 84*0ebf007dSSergio Lopez /* memory above 4GiB */ 85*0ebf007dSSergio Lopez val = x86ms->above_4g_mem_size / 65536; 86*0ebf007dSSergio Lopez rtc_set_memory(s, 0x5b, val); 87*0ebf007dSSergio Lopez rtc_set_memory(s, 0x5c, val >> 8); 88*0ebf007dSSergio Lopez rtc_set_memory(s, 0x5d, val >> 16); 89*0ebf007dSSergio Lopez } 90*0ebf007dSSergio Lopez 91*0ebf007dSSergio Lopez static void microvm_gsi_handler(void *opaque, int n, int level) 92*0ebf007dSSergio Lopez { 93*0ebf007dSSergio Lopez GSIState *s = opaque; 94*0ebf007dSSergio Lopez 95*0ebf007dSSergio Lopez qemu_set_irq(s->ioapic_irq[n], level); 96*0ebf007dSSergio Lopez } 97*0ebf007dSSergio Lopez 98*0ebf007dSSergio Lopez static void microvm_devices_init(MicrovmMachineState *mms) 99*0ebf007dSSergio Lopez { 100*0ebf007dSSergio Lopez X86MachineState *x86ms = X86_MACHINE(mms); 101*0ebf007dSSergio Lopez ISABus *isa_bus; 102*0ebf007dSSergio Lopez ISADevice *rtc_state; 103*0ebf007dSSergio Lopez GSIState *gsi_state; 104*0ebf007dSSergio Lopez int i; 105*0ebf007dSSergio Lopez 106*0ebf007dSSergio Lopez /* Core components */ 107*0ebf007dSSergio Lopez 108*0ebf007dSSergio Lopez gsi_state = g_malloc0(sizeof(*gsi_state)); 109*0ebf007dSSergio Lopez if (mms->pic == ON_OFF_AUTO_ON || mms->pic == ON_OFF_AUTO_AUTO) { 110*0ebf007dSSergio Lopez x86ms->gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS); 111*0ebf007dSSergio Lopez } else { 112*0ebf007dSSergio Lopez x86ms->gsi = qemu_allocate_irqs(microvm_gsi_handler, 113*0ebf007dSSergio Lopez gsi_state, GSI_NUM_PINS); 114*0ebf007dSSergio Lopez } 115*0ebf007dSSergio Lopez 116*0ebf007dSSergio Lopez isa_bus = isa_bus_new(NULL, get_system_memory(), get_system_io(), 117*0ebf007dSSergio Lopez &error_abort); 118*0ebf007dSSergio Lopez isa_bus_irqs(isa_bus, x86ms->gsi); 119*0ebf007dSSergio Lopez 120*0ebf007dSSergio Lopez ioapic_init_gsi(gsi_state, "machine"); 121*0ebf007dSSergio Lopez 122*0ebf007dSSergio Lopez kvmclock_create(); 123*0ebf007dSSergio Lopez 124*0ebf007dSSergio Lopez for (i = 0; i < VIRTIO_NUM_TRANSPORTS; i++) { 125*0ebf007dSSergio Lopez sysbus_create_simple("virtio-mmio", 126*0ebf007dSSergio Lopez VIRTIO_MMIO_BASE + i * 512, 127*0ebf007dSSergio Lopez x86ms->gsi[VIRTIO_IRQ_BASE + i]); 128*0ebf007dSSergio Lopez } 129*0ebf007dSSergio Lopez 130*0ebf007dSSergio Lopez /* Optional and legacy devices */ 131*0ebf007dSSergio Lopez 132*0ebf007dSSergio Lopez if (mms->pic == ON_OFF_AUTO_ON || mms->pic == ON_OFF_AUTO_AUTO) { 133*0ebf007dSSergio Lopez qemu_irq *i8259; 134*0ebf007dSSergio Lopez 135*0ebf007dSSergio Lopez i8259 = i8259_init(isa_bus, pc_allocate_cpu_irq()); 136*0ebf007dSSergio Lopez for (i = 0; i < ISA_NUM_IRQS; i++) { 137*0ebf007dSSergio Lopez gsi_state->i8259_irq[i] = i8259[i]; 138*0ebf007dSSergio Lopez } 139*0ebf007dSSergio Lopez g_free(i8259); 140*0ebf007dSSergio Lopez } 141*0ebf007dSSergio Lopez 142*0ebf007dSSergio Lopez if (mms->pit == ON_OFF_AUTO_ON || mms->pit == ON_OFF_AUTO_AUTO) { 143*0ebf007dSSergio Lopez if (kvm_pit_in_kernel()) { 144*0ebf007dSSergio Lopez kvm_pit_init(isa_bus, 0x40); 145*0ebf007dSSergio Lopez } else { 146*0ebf007dSSergio Lopez i8254_pit_init(isa_bus, 0x40, 0, NULL); 147*0ebf007dSSergio Lopez } 148*0ebf007dSSergio Lopez } 149*0ebf007dSSergio Lopez 150*0ebf007dSSergio Lopez if (mms->rtc == ON_OFF_AUTO_ON || 151*0ebf007dSSergio Lopez (mms->rtc == ON_OFF_AUTO_AUTO && !kvm_enabled())) { 152*0ebf007dSSergio Lopez rtc_state = mc146818_rtc_init(isa_bus, 2000, NULL); 153*0ebf007dSSergio Lopez microvm_set_rtc(mms, rtc_state); 154*0ebf007dSSergio Lopez } 155*0ebf007dSSergio Lopez 156*0ebf007dSSergio Lopez if (mms->isa_serial) { 157*0ebf007dSSergio Lopez serial_hds_isa_init(isa_bus, 0, 1); 158*0ebf007dSSergio Lopez } 159*0ebf007dSSergio Lopez 160*0ebf007dSSergio Lopez if (bios_name == NULL) { 161*0ebf007dSSergio Lopez bios_name = MICROVM_BIOS_FILENAME; 162*0ebf007dSSergio Lopez } 163*0ebf007dSSergio Lopez x86_bios_rom_init(get_system_memory(), true); 164*0ebf007dSSergio Lopez } 165*0ebf007dSSergio Lopez 166*0ebf007dSSergio Lopez static void microvm_memory_init(MicrovmMachineState *mms) 167*0ebf007dSSergio Lopez { 168*0ebf007dSSergio Lopez MachineState *machine = MACHINE(mms); 169*0ebf007dSSergio Lopez X86MachineState *x86ms = X86_MACHINE(mms); 170*0ebf007dSSergio Lopez MemoryRegion *ram, *ram_below_4g, *ram_above_4g; 171*0ebf007dSSergio Lopez MemoryRegion *system_memory = get_system_memory(); 172*0ebf007dSSergio Lopez FWCfgState *fw_cfg; 173*0ebf007dSSergio Lopez ram_addr_t lowmem; 174*0ebf007dSSergio Lopez int i; 175*0ebf007dSSergio Lopez 176*0ebf007dSSergio Lopez /* 177*0ebf007dSSergio Lopez * Check whether RAM fits below 4G (leaving 1/2 GByte for IO memory 178*0ebf007dSSergio Lopez * and 256 Mbytes for PCI Express Enhanced Configuration Access Mapping 179*0ebf007dSSergio Lopez * also known as MMCFG). 180*0ebf007dSSergio Lopez * If it doesn't, we need to split it in chunks below and above 4G. 181*0ebf007dSSergio Lopez * In any case, try to make sure that guest addresses aligned at 182*0ebf007dSSergio Lopez * 1G boundaries get mapped to host addresses aligned at 1G boundaries. 183*0ebf007dSSergio Lopez */ 184*0ebf007dSSergio Lopez if (machine->ram_size >= 0xb0000000) { 185*0ebf007dSSergio Lopez lowmem = 0x80000000; 186*0ebf007dSSergio Lopez } else { 187*0ebf007dSSergio Lopez lowmem = 0xb0000000; 188*0ebf007dSSergio Lopez } 189*0ebf007dSSergio Lopez 190*0ebf007dSSergio Lopez /* 191*0ebf007dSSergio Lopez * Handle the machine opt max-ram-below-4g. It is basically doing 192*0ebf007dSSergio Lopez * min(qemu limit, user limit). 193*0ebf007dSSergio Lopez */ 194*0ebf007dSSergio Lopez if (!x86ms->max_ram_below_4g) { 195*0ebf007dSSergio Lopez x86ms->max_ram_below_4g = 4 * GiB; 196*0ebf007dSSergio Lopez } 197*0ebf007dSSergio Lopez if (lowmem > x86ms->max_ram_below_4g) { 198*0ebf007dSSergio Lopez lowmem = x86ms->max_ram_below_4g; 199*0ebf007dSSergio Lopez if (machine->ram_size - lowmem > lowmem && 200*0ebf007dSSergio Lopez lowmem & (1 * GiB - 1)) { 201*0ebf007dSSergio Lopez warn_report("There is possibly poor performance as the ram size " 202*0ebf007dSSergio Lopez " (0x%" PRIx64 ") is more then twice the size of" 203*0ebf007dSSergio Lopez " max-ram-below-4g (%"PRIu64") and" 204*0ebf007dSSergio Lopez " max-ram-below-4g is not a multiple of 1G.", 205*0ebf007dSSergio Lopez (uint64_t)machine->ram_size, x86ms->max_ram_below_4g); 206*0ebf007dSSergio Lopez } 207*0ebf007dSSergio Lopez } 208*0ebf007dSSergio Lopez 209*0ebf007dSSergio Lopez if (machine->ram_size > lowmem) { 210*0ebf007dSSergio Lopez x86ms->above_4g_mem_size = machine->ram_size - lowmem; 211*0ebf007dSSergio Lopez x86ms->below_4g_mem_size = lowmem; 212*0ebf007dSSergio Lopez } else { 213*0ebf007dSSergio Lopez x86ms->above_4g_mem_size = 0; 214*0ebf007dSSergio Lopez x86ms->below_4g_mem_size = machine->ram_size; 215*0ebf007dSSergio Lopez } 216*0ebf007dSSergio Lopez 217*0ebf007dSSergio Lopez ram = g_malloc(sizeof(*ram)); 218*0ebf007dSSergio Lopez memory_region_allocate_system_memory(ram, NULL, "microvm.ram", 219*0ebf007dSSergio Lopez machine->ram_size); 220*0ebf007dSSergio Lopez 221*0ebf007dSSergio Lopez ram_below_4g = g_malloc(sizeof(*ram_below_4g)); 222*0ebf007dSSergio Lopez memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram, 223*0ebf007dSSergio Lopez 0, x86ms->below_4g_mem_size); 224*0ebf007dSSergio Lopez memory_region_add_subregion(system_memory, 0, ram_below_4g); 225*0ebf007dSSergio Lopez 226*0ebf007dSSergio Lopez e820_add_entry(0, x86ms->below_4g_mem_size, E820_RAM); 227*0ebf007dSSergio Lopez 228*0ebf007dSSergio Lopez if (x86ms->above_4g_mem_size > 0) { 229*0ebf007dSSergio Lopez ram_above_4g = g_malloc(sizeof(*ram_above_4g)); 230*0ebf007dSSergio Lopez memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g", ram, 231*0ebf007dSSergio Lopez x86ms->below_4g_mem_size, 232*0ebf007dSSergio Lopez x86ms->above_4g_mem_size); 233*0ebf007dSSergio Lopez memory_region_add_subregion(system_memory, 0x100000000ULL, 234*0ebf007dSSergio Lopez ram_above_4g); 235*0ebf007dSSergio Lopez e820_add_entry(0x100000000ULL, x86ms->above_4g_mem_size, E820_RAM); 236*0ebf007dSSergio Lopez } 237*0ebf007dSSergio Lopez 238*0ebf007dSSergio Lopez fw_cfg = fw_cfg_init_io_dma(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4, 239*0ebf007dSSergio Lopez &address_space_memory); 240*0ebf007dSSergio Lopez 241*0ebf007dSSergio Lopez fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, machine->smp.cpus); 242*0ebf007dSSergio Lopez fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, machine->smp.max_cpus); 243*0ebf007dSSergio Lopez fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)machine->ram_size); 244*0ebf007dSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override()); 245*0ebf007dSSergio Lopez fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, 246*0ebf007dSSergio Lopez &e820_reserve, sizeof(e820_reserve)); 247*0ebf007dSSergio Lopez fw_cfg_add_file(fw_cfg, "etc/e820", e820_table, 248*0ebf007dSSergio Lopez sizeof(struct e820_entry) * e820_get_num_entries()); 249*0ebf007dSSergio Lopez 250*0ebf007dSSergio Lopez rom_set_fw(fw_cfg); 251*0ebf007dSSergio Lopez 252*0ebf007dSSergio Lopez if (machine->kernel_filename != NULL) { 253*0ebf007dSSergio Lopez x86_load_linux(x86ms, fw_cfg, 0, true, true); 254*0ebf007dSSergio Lopez } 255*0ebf007dSSergio Lopez 256*0ebf007dSSergio Lopez if (mms->option_roms) { 257*0ebf007dSSergio Lopez for (i = 0; i < nb_option_roms; i++) { 258*0ebf007dSSergio Lopez rom_add_option(option_rom[i].name, option_rom[i].bootindex); 259*0ebf007dSSergio Lopez } 260*0ebf007dSSergio Lopez } 261*0ebf007dSSergio Lopez 262*0ebf007dSSergio Lopez x86ms->fw_cfg = fw_cfg; 263*0ebf007dSSergio Lopez x86ms->ioapic_as = &address_space_memory; 264*0ebf007dSSergio Lopez } 265*0ebf007dSSergio Lopez 266*0ebf007dSSergio Lopez static gchar *microvm_get_mmio_cmdline(gchar *name) 267*0ebf007dSSergio Lopez { 268*0ebf007dSSergio Lopez gchar *cmdline; 269*0ebf007dSSergio Lopez gchar *separator; 270*0ebf007dSSergio Lopez long int index; 271*0ebf007dSSergio Lopez int ret; 272*0ebf007dSSergio Lopez 273*0ebf007dSSergio Lopez separator = g_strrstr(name, "."); 274*0ebf007dSSergio Lopez if (!separator) { 275*0ebf007dSSergio Lopez return NULL; 276*0ebf007dSSergio Lopez } 277*0ebf007dSSergio Lopez 278*0ebf007dSSergio Lopez if (qemu_strtol(separator + 1, NULL, 10, &index) != 0) { 279*0ebf007dSSergio Lopez return NULL; 280*0ebf007dSSergio Lopez } 281*0ebf007dSSergio Lopez 282*0ebf007dSSergio Lopez cmdline = g_malloc0(VIRTIO_CMDLINE_MAXLEN); 283*0ebf007dSSergio Lopez ret = g_snprintf(cmdline, VIRTIO_CMDLINE_MAXLEN, 284*0ebf007dSSergio Lopez " virtio_mmio.device=512@0x%lx:%ld", 285*0ebf007dSSergio Lopez VIRTIO_MMIO_BASE + index * 512, 286*0ebf007dSSergio Lopez VIRTIO_IRQ_BASE + index); 287*0ebf007dSSergio Lopez if (ret < 0 || ret >= VIRTIO_CMDLINE_MAXLEN) { 288*0ebf007dSSergio Lopez g_free(cmdline); 289*0ebf007dSSergio Lopez return NULL; 290*0ebf007dSSergio Lopez } 291*0ebf007dSSergio Lopez 292*0ebf007dSSergio Lopez return cmdline; 293*0ebf007dSSergio Lopez } 294*0ebf007dSSergio Lopez 295*0ebf007dSSergio Lopez static void microvm_fix_kernel_cmdline(MachineState *machine) 296*0ebf007dSSergio Lopez { 297*0ebf007dSSergio Lopez X86MachineState *x86ms = X86_MACHINE(machine); 298*0ebf007dSSergio Lopez BusState *bus; 299*0ebf007dSSergio Lopez BusChild *kid; 300*0ebf007dSSergio Lopez char *cmdline; 301*0ebf007dSSergio Lopez 302*0ebf007dSSergio Lopez /* 303*0ebf007dSSergio Lopez * Find MMIO transports with attached devices, and add them to the kernel 304*0ebf007dSSergio Lopez * command line. 305*0ebf007dSSergio Lopez * 306*0ebf007dSSergio Lopez * Yes, this is a hack, but one that heavily improves the UX without 307*0ebf007dSSergio Lopez * introducing any significant issues. 308*0ebf007dSSergio Lopez */ 309*0ebf007dSSergio Lopez cmdline = g_strdup(machine->kernel_cmdline); 310*0ebf007dSSergio Lopez bus = sysbus_get_default(); 311*0ebf007dSSergio Lopez QTAILQ_FOREACH(kid, &bus->children, sibling) { 312*0ebf007dSSergio Lopez DeviceState *dev = kid->child; 313*0ebf007dSSergio Lopez ObjectClass *class = object_get_class(OBJECT(dev)); 314*0ebf007dSSergio Lopez 315*0ebf007dSSergio Lopez if (class == object_class_by_name(TYPE_VIRTIO_MMIO)) { 316*0ebf007dSSergio Lopez VirtIOMMIOProxy *mmio = VIRTIO_MMIO(OBJECT(dev)); 317*0ebf007dSSergio Lopez VirtioBusState *mmio_virtio_bus = &mmio->bus; 318*0ebf007dSSergio Lopez BusState *mmio_bus = &mmio_virtio_bus->parent_obj; 319*0ebf007dSSergio Lopez 320*0ebf007dSSergio Lopez if (!QTAILQ_EMPTY(&mmio_bus->children)) { 321*0ebf007dSSergio Lopez gchar *mmio_cmdline = microvm_get_mmio_cmdline(mmio_bus->name); 322*0ebf007dSSergio Lopez if (mmio_cmdline) { 323*0ebf007dSSergio Lopez char *newcmd = g_strjoin(NULL, cmdline, mmio_cmdline, NULL); 324*0ebf007dSSergio Lopez g_free(mmio_cmdline); 325*0ebf007dSSergio Lopez g_free(cmdline); 326*0ebf007dSSergio Lopez cmdline = newcmd; 327*0ebf007dSSergio Lopez } 328*0ebf007dSSergio Lopez } 329*0ebf007dSSergio Lopez } 330*0ebf007dSSergio Lopez } 331*0ebf007dSSergio Lopez 332*0ebf007dSSergio Lopez fw_cfg_modify_i32(x86ms->fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(cmdline) + 1); 333*0ebf007dSSergio Lopez fw_cfg_modify_string(x86ms->fw_cfg, FW_CFG_CMDLINE_DATA, cmdline); 334*0ebf007dSSergio Lopez } 335*0ebf007dSSergio Lopez 336*0ebf007dSSergio Lopez static void microvm_machine_state_init(MachineState *machine) 337*0ebf007dSSergio Lopez { 338*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(machine); 339*0ebf007dSSergio Lopez X86MachineState *x86ms = X86_MACHINE(machine); 340*0ebf007dSSergio Lopez Error *local_err = NULL; 341*0ebf007dSSergio Lopez 342*0ebf007dSSergio Lopez microvm_memory_init(mms); 343*0ebf007dSSergio Lopez 344*0ebf007dSSergio Lopez x86_cpus_init(x86ms, CPU_VERSION_LATEST); 345*0ebf007dSSergio Lopez if (local_err) { 346*0ebf007dSSergio Lopez error_report_err(local_err); 347*0ebf007dSSergio Lopez exit(1); 348*0ebf007dSSergio Lopez } 349*0ebf007dSSergio Lopez 350*0ebf007dSSergio Lopez microvm_devices_init(mms); 351*0ebf007dSSergio Lopez } 352*0ebf007dSSergio Lopez 353*0ebf007dSSergio Lopez static void microvm_machine_reset(MachineState *machine) 354*0ebf007dSSergio Lopez { 355*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(machine); 356*0ebf007dSSergio Lopez CPUState *cs; 357*0ebf007dSSergio Lopez X86CPU *cpu; 358*0ebf007dSSergio Lopez 359*0ebf007dSSergio Lopez if (machine->kernel_filename != NULL && 360*0ebf007dSSergio Lopez mms->auto_kernel_cmdline && !mms->kernel_cmdline_fixed) { 361*0ebf007dSSergio Lopez microvm_fix_kernel_cmdline(machine); 362*0ebf007dSSergio Lopez mms->kernel_cmdline_fixed = true; 363*0ebf007dSSergio Lopez } 364*0ebf007dSSergio Lopez 365*0ebf007dSSergio Lopez qemu_devices_reset(); 366*0ebf007dSSergio Lopez 367*0ebf007dSSergio Lopez CPU_FOREACH(cs) { 368*0ebf007dSSergio Lopez cpu = X86_CPU(cs); 369*0ebf007dSSergio Lopez 370*0ebf007dSSergio Lopez if (cpu->apic_state) { 371*0ebf007dSSergio Lopez device_reset(cpu->apic_state); 372*0ebf007dSSergio Lopez } 373*0ebf007dSSergio Lopez } 374*0ebf007dSSergio Lopez } 375*0ebf007dSSergio Lopez 376*0ebf007dSSergio Lopez static void microvm_machine_get_pic(Object *obj, Visitor *v, const char *name, 377*0ebf007dSSergio Lopez void *opaque, Error **errp) 378*0ebf007dSSergio Lopez { 379*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 380*0ebf007dSSergio Lopez OnOffAuto pic = mms->pic; 381*0ebf007dSSergio Lopez 382*0ebf007dSSergio Lopez visit_type_OnOffAuto(v, name, &pic, errp); 383*0ebf007dSSergio Lopez } 384*0ebf007dSSergio Lopez 385*0ebf007dSSergio Lopez static void microvm_machine_set_pic(Object *obj, Visitor *v, const char *name, 386*0ebf007dSSergio Lopez void *opaque, Error **errp) 387*0ebf007dSSergio Lopez { 388*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 389*0ebf007dSSergio Lopez 390*0ebf007dSSergio Lopez visit_type_OnOffAuto(v, name, &mms->pic, errp); 391*0ebf007dSSergio Lopez } 392*0ebf007dSSergio Lopez 393*0ebf007dSSergio Lopez static void microvm_machine_get_pit(Object *obj, Visitor *v, const char *name, 394*0ebf007dSSergio Lopez void *opaque, Error **errp) 395*0ebf007dSSergio Lopez { 396*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 397*0ebf007dSSergio Lopez OnOffAuto pit = mms->pit; 398*0ebf007dSSergio Lopez 399*0ebf007dSSergio Lopez visit_type_OnOffAuto(v, name, &pit, errp); 400*0ebf007dSSergio Lopez } 401*0ebf007dSSergio Lopez 402*0ebf007dSSergio Lopez static void microvm_machine_set_pit(Object *obj, Visitor *v, const char *name, 403*0ebf007dSSergio Lopez void *opaque, Error **errp) 404*0ebf007dSSergio Lopez { 405*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 406*0ebf007dSSergio Lopez 407*0ebf007dSSergio Lopez visit_type_OnOffAuto(v, name, &mms->pit, errp); 408*0ebf007dSSergio Lopez } 409*0ebf007dSSergio Lopez 410*0ebf007dSSergio Lopez static void microvm_machine_get_rtc(Object *obj, Visitor *v, const char *name, 411*0ebf007dSSergio Lopez void *opaque, Error **errp) 412*0ebf007dSSergio Lopez { 413*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 414*0ebf007dSSergio Lopez OnOffAuto rtc = mms->rtc; 415*0ebf007dSSergio Lopez 416*0ebf007dSSergio Lopez visit_type_OnOffAuto(v, name, &rtc, errp); 417*0ebf007dSSergio Lopez } 418*0ebf007dSSergio Lopez 419*0ebf007dSSergio Lopez static void microvm_machine_set_rtc(Object *obj, Visitor *v, const char *name, 420*0ebf007dSSergio Lopez void *opaque, Error **errp) 421*0ebf007dSSergio Lopez { 422*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 423*0ebf007dSSergio Lopez 424*0ebf007dSSergio Lopez visit_type_OnOffAuto(v, name, &mms->rtc, errp); 425*0ebf007dSSergio Lopez } 426*0ebf007dSSergio Lopez 427*0ebf007dSSergio Lopez static bool microvm_machine_get_isa_serial(Object *obj, Error **errp) 428*0ebf007dSSergio Lopez { 429*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 430*0ebf007dSSergio Lopez 431*0ebf007dSSergio Lopez return mms->isa_serial; 432*0ebf007dSSergio Lopez } 433*0ebf007dSSergio Lopez 434*0ebf007dSSergio Lopez static void microvm_machine_set_isa_serial(Object *obj, bool value, 435*0ebf007dSSergio Lopez Error **errp) 436*0ebf007dSSergio Lopez { 437*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 438*0ebf007dSSergio Lopez 439*0ebf007dSSergio Lopez mms->isa_serial = value; 440*0ebf007dSSergio Lopez } 441*0ebf007dSSergio Lopez 442*0ebf007dSSergio Lopez static bool microvm_machine_get_option_roms(Object *obj, Error **errp) 443*0ebf007dSSergio Lopez { 444*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 445*0ebf007dSSergio Lopez 446*0ebf007dSSergio Lopez return mms->option_roms; 447*0ebf007dSSergio Lopez } 448*0ebf007dSSergio Lopez 449*0ebf007dSSergio Lopez static void microvm_machine_set_option_roms(Object *obj, bool value, 450*0ebf007dSSergio Lopez Error **errp) 451*0ebf007dSSergio Lopez { 452*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 453*0ebf007dSSergio Lopez 454*0ebf007dSSergio Lopez mms->option_roms = value; 455*0ebf007dSSergio Lopez } 456*0ebf007dSSergio Lopez 457*0ebf007dSSergio Lopez static bool microvm_machine_get_auto_kernel_cmdline(Object *obj, Error **errp) 458*0ebf007dSSergio Lopez { 459*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 460*0ebf007dSSergio Lopez 461*0ebf007dSSergio Lopez return mms->auto_kernel_cmdline; 462*0ebf007dSSergio Lopez } 463*0ebf007dSSergio Lopez 464*0ebf007dSSergio Lopez static void microvm_machine_set_auto_kernel_cmdline(Object *obj, bool value, 465*0ebf007dSSergio Lopez Error **errp) 466*0ebf007dSSergio Lopez { 467*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 468*0ebf007dSSergio Lopez 469*0ebf007dSSergio Lopez mms->auto_kernel_cmdline = value; 470*0ebf007dSSergio Lopez } 471*0ebf007dSSergio Lopez 472*0ebf007dSSergio Lopez static void microvm_machine_initfn(Object *obj) 473*0ebf007dSSergio Lopez { 474*0ebf007dSSergio Lopez MicrovmMachineState *mms = MICROVM_MACHINE(obj); 475*0ebf007dSSergio Lopez 476*0ebf007dSSergio Lopez /* Configuration */ 477*0ebf007dSSergio Lopez mms->pic = ON_OFF_AUTO_AUTO; 478*0ebf007dSSergio Lopez mms->pit = ON_OFF_AUTO_AUTO; 479*0ebf007dSSergio Lopez mms->rtc = ON_OFF_AUTO_AUTO; 480*0ebf007dSSergio Lopez mms->isa_serial = true; 481*0ebf007dSSergio Lopez mms->option_roms = true; 482*0ebf007dSSergio Lopez mms->auto_kernel_cmdline = true; 483*0ebf007dSSergio Lopez 484*0ebf007dSSergio Lopez /* State */ 485*0ebf007dSSergio Lopez mms->kernel_cmdline_fixed = false; 486*0ebf007dSSergio Lopez } 487*0ebf007dSSergio Lopez 488*0ebf007dSSergio Lopez static void microvm_class_init(ObjectClass *oc, void *data) 489*0ebf007dSSergio Lopez { 490*0ebf007dSSergio Lopez MachineClass *mc = MACHINE_CLASS(oc); 491*0ebf007dSSergio Lopez 492*0ebf007dSSergio Lopez mc->init = microvm_machine_state_init; 493*0ebf007dSSergio Lopez 494*0ebf007dSSergio Lopez mc->family = "microvm_i386"; 495*0ebf007dSSergio Lopez mc->desc = "microvm (i386)"; 496*0ebf007dSSergio Lopez mc->units_per_default_bus = 1; 497*0ebf007dSSergio Lopez mc->no_floppy = 1; 498*0ebf007dSSergio Lopez mc->max_cpus = 288; 499*0ebf007dSSergio Lopez mc->has_hotpluggable_cpus = false; 500*0ebf007dSSergio Lopez mc->auto_enable_numa_with_memhp = false; 501*0ebf007dSSergio Lopez mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE; 502*0ebf007dSSergio Lopez mc->nvdimm_supported = false; 503*0ebf007dSSergio Lopez 504*0ebf007dSSergio Lopez /* Avoid relying too much on kernel components */ 505*0ebf007dSSergio Lopez mc->default_kernel_irqchip_split = true; 506*0ebf007dSSergio Lopez 507*0ebf007dSSergio Lopez /* Machine class handlers */ 508*0ebf007dSSergio Lopez mc->reset = microvm_machine_reset; 509*0ebf007dSSergio Lopez 510*0ebf007dSSergio Lopez object_class_property_add(oc, MICROVM_MACHINE_PIC, "OnOffAuto", 511*0ebf007dSSergio Lopez microvm_machine_get_pic, 512*0ebf007dSSergio Lopez microvm_machine_set_pic, 513*0ebf007dSSergio Lopez NULL, NULL, &error_abort); 514*0ebf007dSSergio Lopez object_class_property_set_description(oc, MICROVM_MACHINE_PIC, 515*0ebf007dSSergio Lopez "Enable i8259 PIC", &error_abort); 516*0ebf007dSSergio Lopez 517*0ebf007dSSergio Lopez object_class_property_add(oc, MICROVM_MACHINE_PIT, "OnOffAuto", 518*0ebf007dSSergio Lopez microvm_machine_get_pit, 519*0ebf007dSSergio Lopez microvm_machine_set_pit, 520*0ebf007dSSergio Lopez NULL, NULL, &error_abort); 521*0ebf007dSSergio Lopez object_class_property_set_description(oc, MICROVM_MACHINE_PIT, 522*0ebf007dSSergio Lopez "Enable i8254 PIT", &error_abort); 523*0ebf007dSSergio Lopez 524*0ebf007dSSergio Lopez object_class_property_add(oc, MICROVM_MACHINE_RTC, "OnOffAuto", 525*0ebf007dSSergio Lopez microvm_machine_get_rtc, 526*0ebf007dSSergio Lopez microvm_machine_set_rtc, 527*0ebf007dSSergio Lopez NULL, NULL, &error_abort); 528*0ebf007dSSergio Lopez object_class_property_set_description(oc, MICROVM_MACHINE_RTC, 529*0ebf007dSSergio Lopez "Enable MC146818 RTC", &error_abort); 530*0ebf007dSSergio Lopez 531*0ebf007dSSergio Lopez object_class_property_add_bool(oc, MICROVM_MACHINE_ISA_SERIAL, 532*0ebf007dSSergio Lopez microvm_machine_get_isa_serial, 533*0ebf007dSSergio Lopez microvm_machine_set_isa_serial, 534*0ebf007dSSergio Lopez &error_abort); 535*0ebf007dSSergio Lopez object_class_property_set_description(oc, MICROVM_MACHINE_ISA_SERIAL, 536*0ebf007dSSergio Lopez "Set off to disable the instantiation an ISA serial port", 537*0ebf007dSSergio Lopez &error_abort); 538*0ebf007dSSergio Lopez 539*0ebf007dSSergio Lopez object_class_property_add_bool(oc, MICROVM_MACHINE_OPTION_ROMS, 540*0ebf007dSSergio Lopez microvm_machine_get_option_roms, 541*0ebf007dSSergio Lopez microvm_machine_set_option_roms, 542*0ebf007dSSergio Lopez &error_abort); 543*0ebf007dSSergio Lopez object_class_property_set_description(oc, MICROVM_MACHINE_OPTION_ROMS, 544*0ebf007dSSergio Lopez "Set off to disable loading option ROMs", &error_abort); 545*0ebf007dSSergio Lopez 546*0ebf007dSSergio Lopez object_class_property_add_bool(oc, MICROVM_MACHINE_AUTO_KERNEL_CMDLINE, 547*0ebf007dSSergio Lopez microvm_machine_get_auto_kernel_cmdline, 548*0ebf007dSSergio Lopez microvm_machine_set_auto_kernel_cmdline, 549*0ebf007dSSergio Lopez &error_abort); 550*0ebf007dSSergio Lopez object_class_property_set_description(oc, 551*0ebf007dSSergio Lopez MICROVM_MACHINE_AUTO_KERNEL_CMDLINE, 552*0ebf007dSSergio Lopez "Set off to disable adding virtio-mmio devices to the kernel cmdline", 553*0ebf007dSSergio Lopez &error_abort); 554*0ebf007dSSergio Lopez } 555*0ebf007dSSergio Lopez 556*0ebf007dSSergio Lopez static const TypeInfo microvm_machine_info = { 557*0ebf007dSSergio Lopez .name = TYPE_MICROVM_MACHINE, 558*0ebf007dSSergio Lopez .parent = TYPE_X86_MACHINE, 559*0ebf007dSSergio Lopez .instance_size = sizeof(MicrovmMachineState), 560*0ebf007dSSergio Lopez .instance_init = microvm_machine_initfn, 561*0ebf007dSSergio Lopez .class_size = sizeof(MicrovmMachineClass), 562*0ebf007dSSergio Lopez .class_init = microvm_class_init, 563*0ebf007dSSergio Lopez .interfaces = (InterfaceInfo[]) { 564*0ebf007dSSergio Lopez { } 565*0ebf007dSSergio Lopez }, 566*0ebf007dSSergio Lopez }; 567*0ebf007dSSergio Lopez 568*0ebf007dSSergio Lopez static void microvm_machine_init(void) 569*0ebf007dSSergio Lopez { 570*0ebf007dSSergio Lopez type_register_static(µvm_machine_info); 571*0ebf007dSSergio Lopez } 572*0ebf007dSSergio Lopez type_init(microvm_machine_init); 573