1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/* Declarations for use by board files for creating devices. */
#ifndef HW_BOARDS_H
#define HW_BOARDS_H
#include "sysemu/blockdev.h"
#include "sysemu/accel.h"
#include "hw/qdev.h"
#include "qom/object.h"
#include "qom/cpu.h"
void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
const char *name,
uint64_t ram_size);
#define TYPE_MACHINE_SUFFIX "-machine"
/* Machine class name that needs to be used for class-name-based machine
* type lookup to work.
*/
#define MACHINE_TYPE_NAME(machinename) (machinename TYPE_MACHINE_SUFFIX)
#define TYPE_MACHINE "machine"
#undef MACHINE /* BSD defines it and QEMU does not use it */
#define MACHINE(obj) \
OBJECT_CHECK(MachineState, (obj), TYPE_MACHINE)
#define MACHINE_GET_CLASS(obj) \
OBJECT_GET_CLASS(MachineClass, (obj), TYPE_MACHINE)
#define MACHINE_CLASS(klass) \
OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE)
MachineClass *find_default_machine(void);
extern MachineState *current_machine;
bool machine_usb(MachineState *machine);
bool machine_kernel_irqchip_allowed(MachineState *machine);
bool machine_kernel_irqchip_required(MachineState *machine);
bool machine_kernel_irqchip_split(MachineState *machine);
int machine_kvm_shadow_mem(MachineState *machine);
int machine_phandle_start(MachineState *machine);
bool machine_dump_guest_core(MachineState *machine);
bool machine_mem_merge(MachineState *machine);
void machine_register_compat_props(MachineState *machine);
HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine);
/**
* CPUArchId:
* @arch_id - architecture-dependent CPU ID of present or possible CPU
* @cpu - pointer to corresponding CPU object if it's present on NULL otherwise
* @props - CPU object properties, initialized by board
* #vcpus_count - number of threads provided by @cpu object
*/
typedef struct {
uint64_t arch_id;
int64_t vcpus_count;
CpuInstanceProperties props;
Object *cpu;
} CPUArchId;
/**
* CPUArchIdList:
* @len - number of @CPUArchId items in @cpus array
* @cpus - array of present or possible CPUs for current machine configuration
*/
typedef struct {
int len;
CPUArchId cpus[0];
} CPUArchIdList;
/**
* MachineClass:
* @get_hotplug_handler: this function is called during bus-less
* device hotplug. If defined it returns pointer to an instance
* of HotplugHandler object, which handles hotplug operation
* for a given @dev. It may return NULL if @dev doesn't require
* any actions to be performed by hotplug handler.
* @cpu_index_to_instance_props:
* used to provide @cpu_index to socket/core/thread number mapping, allowing
* legacy code to perform maping from cpu_index to topology properties
* Returns: tuple of socket/core/thread ids given cpu_index belongs to.
* used to provide @cpu_index to socket number mapping, allowing
* a machine to group CPU threads belonging to the same socket/package
* Returns: socket number given cpu_index belongs to.
* @hw_version:
* Value of QEMU_VERSION when the machine was added to QEMU.
* Set only by old machines because they need to keep
* compatibility on code that exposed QEMU_VERSION to guests in
* the past (and now use qemu_hw_version()).
* @possible_cpu_arch_ids:
* Returns an array of @CPUArchId architecture-dependent CPU IDs
* which includes CPU IDs for present and possible to hotplug CPUs.
* Caller is responsible for freeing returned list.
* @has_hotpluggable_cpus:
* If true, board supports CPUs creation with -device/device_add.
* @minimum_page_bits:
* If non-zero, the board promises never to create a CPU with a page size
* smaller than this, so QEMU can use a more efficient larger page
* size than the target architecture's minimum. (Attempting to create
* such a CPU will fail.) Note that changing this is a migration
* compatibility break for the machine.
*/
struct MachineClass {
/*< private >*/
ObjectClass parent_class;
/*< public >*/
const char *family; /* NULL iff @name identifies a standalone machtype */
char *name;
const char *alias;
const char *desc;
void (*init)(MachineState *state);
void (*reset)(void);
void (*hot_add_cpu)(const int64_t id, Error **errp);
int (*kvm_type)(const char *arg);
BlockInterfaceType block_default_type;
int units_per_default_bus;
int max_cpus;
unsigned int no_serial:1,
no_parallel:1,
use_virtcon:1,
use_sclp:1,
no_floppy:1,
no_cdrom:1,
no_sdcard:1,
has_dynamic_sysbus:1,
pci_allow_0_address:1,
legacy_fw_cfg_order:1;
int is_default;
const char *default_machine_opts;
const char *default_boot_order;
const char *default_display;
GArray *compat_props;
const char *hw_version;
ram_addr_t default_ram_size;
bool option_rom_has_mr;
bool rom_file_has_mr;
int minimum_page_bits;
bool has_hotpluggable_cpus;
int numa_mem_align_shift;
void (*numa_auto_assign_ram)(MachineClass *mc, NodeInfo *nodes,
int nb_nodes, ram_addr_t size);
HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
DeviceState *dev);
CpuInstanceProperties (*cpu_index_to_instance_props)(MachineState *machine,
unsigned cpu_index);
const CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine);
};
/**
* MachineState:
*/
struct MachineState {
/*< private >*/
Object parent_obj;
Notifier sysbus_notifier;
/*< public >*/
char *accel;
bool kernel_irqchip_allowed;
bool kernel_irqchip_required;
bool kernel_irqchip_split;
int kvm_shadow_mem;
char *dtb;
char *dumpdtb;
int phandle_start;
char *dt_compatible;
bool dump_guest_core;
bool mem_merge;
bool usb;
bool usb_disabled;
bool igd_gfx_passthru;
char *firmware;
bool iommu;
bool suppress_vmdesc;
bool enforce_config_section;
bool enable_graphics;
ram_addr_t ram_size;
ram_addr_t maxram_size;
uint64_t ram_slots;
const char *boot_order;
char *kernel_filename;
char *kernel_cmdline;
char *initrd_filename;
const char *cpu_model;
AccelState *accelerator;
CPUArchIdList *possible_cpus;
};
#define DEFINE_MACHINE(namestr, machine_initfn) \
static void machine_initfn##_class_init(ObjectClass *oc, void *data) \
{ \
MachineClass *mc = MACHINE_CLASS(oc); \
machine_initfn(mc); \
} \
static const TypeInfo machine_initfn##_typeinfo = { \
.name = MACHINE_TYPE_NAME(namestr), \
.parent = TYPE_MACHINE, \
.class_init = machine_initfn##_class_init, \
}; \
static void machine_initfn##_register_types(void) \
{ \
type_register_static(&machine_initfn##_typeinfo); \
} \
type_init(machine_initfn##_register_types)
#define SET_MACHINE_COMPAT(m, COMPAT) \
do { \
int i; \
static GlobalProperty props[] = { \
COMPAT \
{ /* end of list */ } \
}; \
if (!m->compat_props) { \
m->compat_props = g_array_new(false, false, sizeof(void *)); \
} \
for (i = 0; props[i].driver != NULL; i++) { \
GlobalProperty *prop = &props[i]; \
g_array_append_val(m->compat_props, prop); \
} \
} while (0)
#endif
|
