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 void machine_set_cpu_numa_node(MachineState *machine, 46 const CpuInstanceProperties *props, 47 Error **errp); 48 49 /** 50 * CPUArchId: 51 * @arch_id - architecture-dependent CPU ID of present or possible CPU 52 * @cpu - pointer to corresponding CPU object if it's present on NULL otherwise 53 * @props - CPU object properties, initialized by board 54 * #vcpus_count - number of threads provided by @cpu object 55 */ 56 typedef struct { 57 uint64_t arch_id; 58 int64_t vcpus_count; 59 CpuInstanceProperties props; 60 Object *cpu; 61 } CPUArchId; 62 63 /** 64 * CPUArchIdList: 65 * @len - number of @CPUArchId items in @cpus array 66 * @cpus - array of present or possible CPUs for current machine configuration 67 */ 68 typedef struct { 69 int len; 70 CPUArchId cpus[0]; 71 } CPUArchIdList; 72 73 /** 74 * MachineClass: 75 * @get_hotplug_handler: this function is called during bus-less 76 * device hotplug. If defined it returns pointer to an instance 77 * of HotplugHandler object, which handles hotplug operation 78 * for a given @dev. It may return NULL if @dev doesn't require 79 * any actions to be performed by hotplug handler. 80 * @cpu_index_to_instance_props: 81 * used to provide @cpu_index to socket/core/thread number mapping, allowing 82 * legacy code to perform maping from cpu_index to topology properties 83 * Returns: tuple of socket/core/thread ids given cpu_index belongs to. 84 * used to provide @cpu_index to socket number mapping, allowing 85 * a machine to group CPU threads belonging to the same socket/package 86 * Returns: socket number given cpu_index belongs to. 87 * @hw_version: 88 * Value of QEMU_VERSION when the machine was added to QEMU. 89 * Set only by old machines because they need to keep 90 * compatibility on code that exposed QEMU_VERSION to guests in 91 * the past (and now use qemu_hw_version()). 92 * @possible_cpu_arch_ids: 93 * Returns an array of @CPUArchId architecture-dependent CPU IDs 94 * which includes CPU IDs for present and possible to hotplug CPUs. 95 * Caller is responsible for freeing returned list. 96 * @has_hotpluggable_cpus: 97 * If true, board supports CPUs creation with -device/device_add. 98 * @minimum_page_bits: 99 * If non-zero, the board promises never to create a CPU with a page size 100 * smaller than this, so QEMU can use a more efficient larger page 101 * size than the target architecture's minimum. (Attempting to create 102 * such a CPU will fail.) Note that changing this is a migration 103 * compatibility break for the machine. 104 */ 105 struct MachineClass { 106 /*< private >*/ 107 ObjectClass parent_class; 108 /*< public >*/ 109 110 const char *family; /* NULL iff @name identifies a standalone machtype */ 111 char *name; 112 const char *alias; 113 const char *desc; 114 115 void (*init)(MachineState *state); 116 void (*reset)(void); 117 void (*hot_add_cpu)(const int64_t id, Error **errp); 118 int (*kvm_type)(const char *arg); 119 120 BlockInterfaceType block_default_type; 121 int units_per_default_bus; 122 int max_cpus; 123 unsigned int no_serial:1, 124 no_parallel:1, 125 use_virtcon:1, 126 use_sclp:1, 127 no_floppy:1, 128 no_cdrom:1, 129 no_sdcard:1, 130 has_dynamic_sysbus:1, 131 pci_allow_0_address:1, 132 legacy_fw_cfg_order:1; 133 int is_default; 134 const char *default_machine_opts; 135 const char *default_boot_order; 136 const char *default_display; 137 GArray *compat_props; 138 const char *hw_version; 139 ram_addr_t default_ram_size; 140 bool option_rom_has_mr; 141 bool rom_file_has_mr; 142 int minimum_page_bits; 143 bool has_hotpluggable_cpus; 144 int numa_mem_align_shift; 145 void (*numa_auto_assign_ram)(MachineClass *mc, NodeInfo *nodes, 146 int nb_nodes, ram_addr_t size); 147 148 HotplugHandler *(*get_hotplug_handler)(MachineState *machine, 149 DeviceState *dev); 150 CpuInstanceProperties (*cpu_index_to_instance_props)(MachineState *machine, 151 unsigned cpu_index); 152 const CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine); 153 }; 154 155 /** 156 * MachineState: 157 */ 158 struct MachineState { 159 /*< private >*/ 160 Object parent_obj; 161 Notifier sysbus_notifier; 162 163 /*< public >*/ 164 165 char *accel; 166 bool kernel_irqchip_allowed; 167 bool kernel_irqchip_required; 168 bool kernel_irqchip_split; 169 int kvm_shadow_mem; 170 char *dtb; 171 char *dumpdtb; 172 int phandle_start; 173 char *dt_compatible; 174 bool dump_guest_core; 175 bool mem_merge; 176 bool usb; 177 bool usb_disabled; 178 bool igd_gfx_passthru; 179 char *firmware; 180 bool iommu; 181 bool suppress_vmdesc; 182 bool enforce_config_section; 183 bool enable_graphics; 184 185 ram_addr_t ram_size; 186 ram_addr_t maxram_size; 187 uint64_t ram_slots; 188 const char *boot_order; 189 char *kernel_filename; 190 char *kernel_cmdline; 191 char *initrd_filename; 192 const char *cpu_model; 193 AccelState *accelerator; 194 CPUArchIdList *possible_cpus; 195 }; 196 197 #define DEFINE_MACHINE(namestr, machine_initfn) \ 198 static void machine_initfn##_class_init(ObjectClass *oc, void *data) \ 199 { \ 200 MachineClass *mc = MACHINE_CLASS(oc); \ 201 machine_initfn(mc); \ 202 } \ 203 static const TypeInfo machine_initfn##_typeinfo = { \ 204 .name = MACHINE_TYPE_NAME(namestr), \ 205 .parent = TYPE_MACHINE, \ 206 .class_init = machine_initfn##_class_init, \ 207 }; \ 208 static void machine_initfn##_register_types(void) \ 209 { \ 210 type_register_static(&machine_initfn##_typeinfo); \ 211 } \ 212 type_init(machine_initfn##_register_types) 213 214 #define SET_MACHINE_COMPAT(m, COMPAT) \ 215 do { \ 216 int i; \ 217 static GlobalProperty props[] = { \ 218 COMPAT \ 219 { /* end of list */ } \ 220 }; \ 221 if (!m->compat_props) { \ 222 m->compat_props = g_array_new(false, false, sizeof(void *)); \ 223 } \ 224 for (i = 0; props[i].driver != NULL; i++) { \ 225 GlobalProperty *prop = &props[i]; \ 226 g_array_append_val(m->compat_props, prop); \ 227 } \ 228 } while (0) 229 230 #endif 231