1 /* Declarations for use by board files for creating devices. */ 2 3 #ifndef HW_BOARDS_H 4 #define HW_BOARDS_H 5 6 #include "sysemu/blockdev.h" 7 #include "sysemu/accel.h" 8 #include "hw/qdev.h" 9 #include "qom/object.h" 10 #include "qom/cpu.h" 11 12 void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner, 13 const char *name, 14 uint64_t ram_size); 15 16 #define TYPE_MACHINE_SUFFIX "-machine" 17 18 /* Machine class name that needs to be used for class-name-based machine 19 * type lookup to work. 20 */ 21 #define MACHINE_TYPE_NAME(machinename) (machinename TYPE_MACHINE_SUFFIX) 22 23 #define TYPE_MACHINE "machine" 24 #undef MACHINE /* BSD defines it and QEMU does not use it */ 25 #define MACHINE(obj) \ 26 OBJECT_CHECK(MachineState, (obj), TYPE_MACHINE) 27 #define MACHINE_GET_CLASS(obj) \ 28 OBJECT_GET_CLASS(MachineClass, (obj), TYPE_MACHINE) 29 #define MACHINE_CLASS(klass) \ 30 OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE) 31 32 MachineClass *find_default_machine(void); 33 extern MachineState *current_machine; 34 35 bool machine_usb(MachineState *machine); 36 bool machine_kernel_irqchip_allowed(MachineState *machine); 37 bool machine_kernel_irqchip_required(MachineState *machine); 38 bool machine_kernel_irqchip_split(MachineState *machine); 39 int machine_kvm_shadow_mem(MachineState *machine); 40 int machine_phandle_start(MachineState *machine); 41 bool machine_dump_guest_core(MachineState *machine); 42 bool machine_mem_merge(MachineState *machine); 43 void machine_register_compat_props(MachineState *machine); 44 HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine); 45 46 /** 47 * CPUArchId: 48 * @arch_id - architecture-dependent CPU ID of present or possible CPU 49 * @cpu - pointer to corresponding CPU object if it's present on NULL otherwise 50 * @props - CPU object properties, initialized by board 51 * #vcpus_count - number of threads provided by @cpu object 52 */ 53 typedef struct { 54 uint64_t arch_id; 55 int64_t vcpus_count; 56 CpuInstanceProperties props; 57 Object *cpu; 58 } CPUArchId; 59 60 /** 61 * CPUArchIdList: 62 * @len - number of @CPUArchId items in @cpus array 63 * @cpus - array of present or possible CPUs for current machine configuration 64 */ 65 typedef struct { 66 int len; 67 CPUArchId cpus[0]; 68 } CPUArchIdList; 69 70 /** 71 * MachineClass: 72 * @get_hotplug_handler: this function is called during bus-less 73 * device hotplug. If defined it returns pointer to an instance 74 * of HotplugHandler object, which handles hotplug operation 75 * for a given @dev. It may return NULL if @dev doesn't require 76 * any actions to be performed by hotplug handler. 77 * @cpu_index_to_socket_id: 78 * used to provide @cpu_index to socket number mapping, allowing 79 * a machine to group CPU threads belonging to the same socket/package 80 * Returns: socket number given cpu_index belongs to. 81 * @hw_version: 82 * Value of QEMU_VERSION when the machine was added to QEMU. 83 * Set only by old machines because they need to keep 84 * compatibility on code that exposed QEMU_VERSION to guests in 85 * the past (and now use qemu_hw_version()). 86 * @possible_cpu_arch_ids: 87 * Returns an array of @CPUArchId architecture-dependent CPU IDs 88 * which includes CPU IDs for present and possible to hotplug CPUs. 89 * Caller is responsible for freeing returned list. 90 * @has_hotpluggable_cpus: 91 * If true, board supports CPUs creation with -device/device_add. 92 * @minimum_page_bits: 93 * If non-zero, the board promises never to create a CPU with a page size 94 * smaller than this, so QEMU can use a more efficient larger page 95 * size than the target architecture's minimum. (Attempting to create 96 * such a CPU will fail.) Note that changing this is a migration 97 * compatibility break for the machine. 98 */ 99 struct MachineClass { 100 /*< private >*/ 101 ObjectClass parent_class; 102 /*< public >*/ 103 104 const char *family; /* NULL iff @name identifies a standalone machtype */ 105 char *name; 106 const char *alias; 107 const char *desc; 108 109 void (*init)(MachineState *state); 110 void (*reset)(void); 111 void (*hot_add_cpu)(const int64_t id, Error **errp); 112 int (*kvm_type)(const char *arg); 113 114 BlockInterfaceType block_default_type; 115 int units_per_default_bus; 116 int max_cpus; 117 unsigned int no_serial:1, 118 no_parallel:1, 119 use_virtcon:1, 120 use_sclp:1, 121 no_floppy:1, 122 no_cdrom:1, 123 no_sdcard:1, 124 has_dynamic_sysbus:1, 125 pci_allow_0_address:1, 126 legacy_fw_cfg_order:1; 127 int is_default; 128 const char *default_machine_opts; 129 const char *default_boot_order; 130 const char *default_display; 131 GArray *compat_props; 132 const char *hw_version; 133 ram_addr_t default_ram_size; 134 bool option_rom_has_mr; 135 bool rom_file_has_mr; 136 int minimum_page_bits; 137 bool has_hotpluggable_cpus; 138 int numa_mem_align_shift; 139 140 HotplugHandler *(*get_hotplug_handler)(MachineState *machine, 141 DeviceState *dev); 142 unsigned (*cpu_index_to_socket_id)(unsigned cpu_index); 143 const CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine); 144 }; 145 146 /** 147 * MachineState: 148 */ 149 struct MachineState { 150 /*< private >*/ 151 Object parent_obj; 152 Notifier sysbus_notifier; 153 154 /*< public >*/ 155 156 char *accel; 157 bool kernel_irqchip_allowed; 158 bool kernel_irqchip_required; 159 bool kernel_irqchip_split; 160 int kvm_shadow_mem; 161 char *dtb; 162 char *dumpdtb; 163 int phandle_start; 164 char *dt_compatible; 165 bool dump_guest_core; 166 bool mem_merge; 167 bool usb; 168 bool usb_disabled; 169 bool igd_gfx_passthru; 170 char *firmware; 171 bool iommu; 172 bool suppress_vmdesc; 173 bool enforce_config_section; 174 bool enable_graphics; 175 176 ram_addr_t ram_size; 177 ram_addr_t maxram_size; 178 uint64_t ram_slots; 179 const char *boot_order; 180 char *kernel_filename; 181 char *kernel_cmdline; 182 char *initrd_filename; 183 const char *cpu_model; 184 AccelState *accelerator; 185 CPUArchIdList *possible_cpus; 186 }; 187 188 #define DEFINE_MACHINE(namestr, machine_initfn) \ 189 static void machine_initfn##_class_init(ObjectClass *oc, void *data) \ 190 { \ 191 MachineClass *mc = MACHINE_CLASS(oc); \ 192 machine_initfn(mc); \ 193 } \ 194 static const TypeInfo machine_initfn##_typeinfo = { \ 195 .name = MACHINE_TYPE_NAME(namestr), \ 196 .parent = TYPE_MACHINE, \ 197 .class_init = machine_initfn##_class_init, \ 198 }; \ 199 static void machine_initfn##_register_types(void) \ 200 { \ 201 type_register_static(&machine_initfn##_typeinfo); \ 202 } \ 203 type_init(machine_initfn##_register_types) 204 205 #define SET_MACHINE_COMPAT(m, COMPAT) \ 206 do { \ 207 int i; \ 208 static GlobalProperty props[] = { \ 209 COMPAT \ 210 { /* end of list */ } \ 211 }; \ 212 if (!m->compat_props) { \ 213 m->compat_props = g_array_new(false, false, sizeof(void *)); \ 214 } \ 215 for (i = 0; props[i].driver != NULL; i++) { \ 216 GlobalProperty *prop = &props[i]; \ 217 g_array_append_val(m->compat_props, prop); \ 218 } \ 219 } while (0) 220 221 #endif 222